Journal articles: 'Pacific ocean, description and travel'

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Lin, Hongyang, Keith R. Thompson, and Jianyu Hu. "A Frequency-Dependent Description of Propagating Sea Level Signals in the Kuroshio Extension Region." Journal of Physical Oceanography 44, no. 6 (May 28, 2014): 1614–35. http://dx.doi.org/10.1175/jpo-d-13-0185.1.

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Abstract Hilbert empirical orthogonal function analysis is used to provide a frequency-dependent description of observed sea level variability in the Kuroshio Extension region, 1993–2012 inclusive. The dominant high-frequency mode (periods between 140 and 350 days) describes signals that propagate westward with the largest amplitudes in the vicinity of the Shatsky Rise and Emperor Seamounts. Based on the close correspondence between the variance of the high-frequency variability and the underlying bathymetry, it is speculated that this mode is driven by jet–bathymetry interactions. The dominant low-frequency mode (periods longer than 350 days) is explained in terms of wind-forced, jet-trapped Rossby waves that propagate along the mean Kuroshio Extension jet. One of the most surprising findings of this study is that sea level changes north of the jet in the meander region anticipate changes south of the jet by about 3 yr. Based on correlations of observed sea level with the Pacific decadal oscillation, and western boundary transport variability estimated from the Global Ocean Reanalysis and Simulations (GLORYS), it is speculated that this anticipation is due to the differences in time taken for (i) Rossby waves to travel from the eastern North Pacific to the meander region and (ii) the much faster barotropic response of western boundary transport, and sea level north of the jet, to large-scale forcing by the wind stress curl.

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Muhammad Baqir Ghaidan Al-Taie, Noor. "Voyages of Explorations: A Comparison of the First Eastern Travel to South America by Elias Al-Musili with Walter Raleigh’s one." Journal of Education College Wasit University 48, no. 3 (August 1, 2022): 525–38. http://dx.doi.org/10.31185/eduj.vol48.iss3.3003.

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European travelers in the 15th and 16th century begin to embark on series of explorations of the New World. This period is well known as the “Age of exploration” where many figures such as Ferdinand Magellan, explore the Atlantic road and the Pacific Ocean. Not only the American literature if full of such explorations, but also the Arabic one as well. By the year 1905, Antun Rabbat, a well-known Jesuit scholar of the late nineteenth and early twentieth century, discovers a manuscript of the first eastern travel to Americas, in the library of the Suryan bishopric in Aleppo. He publishes the first manuscript in Al Masriq journal (Vol.8, nos.18-24 [1905] under the heading (The most an ancient voyage of an oriental to America (1668-83) (Farah XI). The manuscript is translated under the title “An Arabs Journey to Colonial Spanish America” by Caesar E. Farah, a professor in the Middle Eastern and Islamic History at the University of Minnesota. This book shows that, since ancient times, Easterners always have passion and love for travel, however, no one before the Rev. Elias, the Chaldean Christian priest from Baghdad, ventures into the Americas and gives his observations of the cities, villages, provinces and native people and could travel freely to the Spanish Empire in 1675-83. In this regard, i will compare the Eastern journey to south America, Peru, and show Elias’s perspective of the native people, with the Western Journey of Sir Walter Raleigh to Peru. Though there is a wide time gap between the two Journeys, however, my main point is to draw a comparison between the Eastern perspective and the Western one of such journey. Both visited Peru, however they share different points of view. Simply put, I will focus on the purpose of such journey, the description of the prevalent religion among the natives, their habits and the search for the mines of gold.

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MacLaren, I. S. "Explorers' and Travelers' Narratives: A Peregrination Through Different Editions." History in Africa 30 (2003): 213–22. http://dx.doi.org/10.1017/s0361541300003223.

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Researchers keen to examine the representation of native people in European accounts of exploration and travel need bring under review the mechanism by which field notes became books, and, once they were books, the multiplicity and diffusion of editions, often themselves quite different from one another. An example that illustrates well this need is British Royal Naval Captain James Cook's posthumously published account of his third voyage to the Pacific Ocean in the years 1776-80. The standard scholarly source is J.C. Beaglehole's monumental edition, The Journals of Captain James Cook on His Voyages of Discovery (1955-74), a twenty-year editing project for the Hakluyt Society, which made available for the first time Cook's own writings until his death at Kealakekua Bay, Sandwich Islands (Hawaii), on 14 February 1779, during the third voyage. However, the need for Beaglehole's project arose, according to the president of the Hakluyt Society, because the original publications differed very widely from Cook's own writings. They were “official” accounts, published by order of George III, and they performed that always interesting exercise—they “improved” on Cook's own writings. It is well known that Cook did not prepare his journals for the press: in the case of the first two voyages to the Pacific, this was his choice. In the case of the third, the choice was not his to make, he being five years deceased. How wide are those differences?In the case of Cook's description of a month-long mooring in Nootka Sound, on the west coast of Vancouver Island, do substantive differences occur between Cook's logs and journal and Bishop John Douglas' edition? Answering that question necessarily involves consulting first editions of the various published accounts.

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Abbas, Abbas. "Description of the American Community of John Steinbeck’s Adventure in Novel Travels with Charley in Search of America 1960s." PIONEER: Journal of Language and Literature 12, no. 2 (December 31, 2020): 173. http://dx.doi.org/10.36841/pioneer.v12i2.738.

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This article aims at describing the social life of the American people in several places that made the adventures of John Steinbeck as the author of the novel Travels with Charley in Search of America around the 1960s. American people’s lives are a part of world civilizations that literary readers need to know. This adventure was preceded by an author’s trip in New York City, then to California, Connecticut, Rhode Island, New Hampshire, Massachusetts, Maine, New Jersey, Saint Lawrence, Quebec, Niagara Falls, Ohio, Chicago, Illinois, Michigan, North Dakota, the Rocky Mountains, Washington, the West Coast, Oregon, Arizona, New Mexico, Texas, New Orleans, Salinas, and again ended in New York. In processing research data, the writer uses one of the methods of literary research, namely the Dynamic Structural Approach which emphasizes the study of the intrinsic elements of literary work and the involvement of the author in his work. The intrinsic elements emphasized in this study are the physical and social settings. The research data were obtained from the results of a literature study which were then explained descriptively. The writer found a number of descriptions of the social life of the American people in the 1960s, namely the life of the city, the situation of the inland people, and ethnic discrimination. The people of the city are busy taking care of their profession and competing for careers, inland people living naturally without competing ambitions, and black African Americans have not enjoyed the progress achieved by the Americans. The description of American society related to the fictional story is divided by region, namely east, north, middle, west, and south. The social condition in the eastern region is dominated by beaches and mountains, and is engaged in business, commerce, industry, and agriculture. The comfortable landscape in the northern region spends the people time as breeders and farmers. The natural condition in the middle region of American is very suitable for agriculture, plantations, and animal husbandry. Many people in the western American region facing the Pacific Ocean become fishermen. The natural conditions from the plains and valleys to the hills make the southern region suitable for plantation land.

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Gómez Espelosín, Francisco Javier. "Alexander and the Ocean." Karanos. Bulletin of Ancient Macedonian Studies 4 (February 1, 2022): 91–97. http://dx.doi.org/10.5565/rev/karanos.80.

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The aim of Alexander to come to the edges of the world and find the Ocean was a main feature with a key impact in Ancient Greek Geography.The travel to find the edges of the world is clearly linked with cultural perceptions of space that defined the geographical perspective of the campaign and its whole description.

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McCowin, Marina F., and Greg W. Rouse. "Phylogeny of hydrothermal vent Iphionidae, with the description of a new species (Aphroditiformia, Annelida)." ZooKeys 779 (August 2, 2018): 89–107. http://dx.doi.org/10.3897/zookeys.779.24781.

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The scale-worm family Iphionidae consists of four genera. Of these, Thermiphione has two accepted species, both native to hydrothermal vents in the Pacific Ocean; T.fijiensis Miura, 1994 (West Pacific) and T.tufari Hartmann-Schröder, 1992 (East Pacific Rise). Iphionella is also known from the Pacific, and has two recognized species; Iphionellarisensis Pettibone, 1986 (East Pacific Rise, hydrothermal vents) and I.philippinensis Pettibone, 1986 (West Pacific, deep sea). In this study, phylogenetic analyses of Iphionidae from various hydrothermal vent systems of the Pacific Ocean were conducted utilizing morphology and mitochondrial (COI and 16S rRNA) and nuclear (18S and 28S rRNA) genes. The results revealed a new iphionid species, described here as Thermiphionerapanuisp. n. The analyses also demonstrated the paraphyly of Thermiphione, requiring Iphionellarisensis to be referred to the genus, as Thermiphionerisensis (Pettibone, 1986).

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GODIN, OLEG A. "A 2-D DESCRIPTION OF SOUND PROPAGATION IN A HORIZONTALLY-INHOMOGENEOUS OCEAN." Journal of Computational Acoustics 10, no. 01 (March 2002): 123–51. http://dx.doi.org/10.1142/s0218396x02001425.

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Effects of horizontal refraction on underwater sound propagation in deep and shallow water are considered within geometrical acoustics and adiabatic normal modes approximations. Several distinct formulations of the adiabatic approximation have been proposed in the literature on modal propagation. These formulations differ in the predicted values of mode amplitudes and, hence, in their reciprocity and energy-conserving properties. The formulations are compared with respect to their accuracy and domain of validity, assuming small and smooth variation of mode propagation constants characteristic of underwater acoustic waveguides. Perturbation theory for horizontal (modal) rays is used in the analysis. An approximate expression for the adiabatic mode amplitude in 3-D problems is derived which requires environmental information only along the source-receiver radial and which has greater accuracy than previous formulations. It is shown that the uncoupled azimuth approximation, also known as the N × 2-D approximation, overestimates travel times of ray arrivals as well as phases of adiabatic normal modes in a horizontally-inhomogeneous ocean. The travel time and phase biases rapidly increase with the value of cross-range environmental gradients and propagation range. Simple and explicit expressions for leading-order corrections to the travel time and the phase are found in terms of path-averaged cross-range environmental gradients. Implications on applicability of the uncoupled azimuth approximation for sound propagation modeling in a horizontally-inhomogeneous ocean are discussed. A perfect-wedge model of the coastal ocean is chosen to illustrate the importance of the travel-time and phase biases due to horizontal refraction.

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James, Charles E., and Mark Wimbush. "Inferring dynamic height variations from acoustic travel time in the Pacific Ocean." Journal of Oceanography 51, no. 5 (September 1995): 553–69. http://dx.doi.org/10.1007/bf02270524.

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Karnauskas, Kristopher B., Raghu Murtugudde, and Antonio J. Busalacchi. "Observing the Galápagos–EUC Interaction: Insights and Challenges." Journal of Physical Oceanography 40, no. 12 (December 1, 2010): 2768–77. http://dx.doi.org/10.1175/2010jpo4461.1.

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Abstract Although sustained observations yield a description of the mean equatorial current system from the western Pacific to the eastern terminus of the Tropical Atmosphere Ocean (TAO) array, a comprehensive observational dataset suitable for describing the structure and pathways of the Equatorial Undercurrent (EUC) east of 95°W does not exist and therefore climate models are unconstrained in a region that plays a critical role in ocean–atmosphere coupling. Furthermore, ocean models suggest that the interaction between the EUC and the Galápagos Islands (∼92°W) has a striking effect on the basic state and coupled variability of the tropical Pacific. To this end, the authors interpret historical measurements beginning with those made in conjunction with the discovery of the Pacific EUC in the 1950s, analyze velocity measurements from an equatorial TAO mooring at 85°W, and analyze a new dataset from archived shipboard ADCP measurements. Together, the observations yield a possible composite description of the EUC structure and pathways in the eastern equatorial Pacific that may be useful for model validation and guiding future observation.

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Bolshakova , Ya Yu, and S. A. Evseenko. "First Finding of Larvae of an Undescribed Species of the Genus Lyconus (Lyconidae) in the North Pacific Ocean." Вопросы ихтиологии 63, no. 2 (March 1, 2023): 233–37. http://dx.doi.org/10.31857/s0042875223020030.

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The first illustrated description of two larvae of the rare deep-water genus Lyconus from the North Pacific Ocean has been given. The studied specimens differ from the previously described larvae of L. pinnatus in complete and uniform pigmentation of the body. The new materials complement the existing ideas about the geographical distribution of representatives of the family Lyconidae – this is their first finding in the waters of the Pacific Ocean.

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Zelle, Hein, Gerrian Appeldoorn, Gerrit Burgers, and Geert Jan van Oldenborgh. "The Relationship between Sea Surface Temperature and Thermocline Depth in the Eastern Equatorial Pacific." Journal of Physical Oceanography 34, no. 3 (March 1, 2004): 643–55. http://dx.doi.org/10.1175/2523.1.

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Abstract The time dependence of the local relation between sea surface temperature (SST) and thermocline depth in the central and eastern equatorial Pacific Ocean is analyzed for the period 1990–99, using subsurface temperature measurements from the Tropical Atmosphere–Ocean Array/Triangle Trans-Ocean Buoy Network (TAO/TRITON) buoy array. Thermocline depth anomalies lead SST anomalies in time, with a longitude-dependent delay ranging from 2 weeks in the eastern Pacific to 1 year in the central Pacific. The lagged correlation between thermocline depth and SST is strong, ranging from r > 0.9 in the east to r ≈ 0.6 at 170°W. Time-lagged correlations between thermocline depth and subsurface temperature anomalies indicate vertical advection of temperature anomalies from the thermocline to the surface in the eastern Pacific. The measurements are compared with the results of forced OGCM and linear model experiments. Using model results, it is shown that the delay between thermocline depth and SST is caused mainly by upwelling and mixing between 140° and 90°W. Between 170°E and 140°W the delay has a different explanation: thermocline depth anomalies travel to the eastern Pacific, where upwelling creates SST anomalies that in turn cause anomalous wind in the central Pacific. SST is then influenced by these wind anomalies.

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MALYUTINA, MARINA V. "Description of two new species of munnopsid isopods (Crustacea: Isopoda: Asellota) from manganese nodules area of the Clarion-Clipperton Fracture Zone, Pacific Ocean." Zootaxa 2783, no. 1 (March 4, 2011): 1. http://dx.doi.org/10.11646/zootaxa.2783.1.1.

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Two new species of deep sea asellotes of the family Munnopsidae, Rectisura slavai sp. nov. and Storthyngura yuzhmorgeo sp. nov. are described from the manganese nodules area in the Clarion-Clipperton Fracture Zone of the Pacific Ocean. The discovery of these new species allowed re-examination of the taxonomic position of two similar species, Storthyngura ? intermedia (Beddard, 1885) from the Northeastern Basin of the Pacific Ocean and Ilyarachna defecta Menzies & George, 1972 from the Peru-Chile Trench, eastern Pacific Ocean. The species are moved to the genera Rectisura Malyutina, 2003 and Storthyngura Vanhöffen, 1914, respectively. Additional composition and distribution of the species of the genera are presented.

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Carballo, José Luis, Leanne Hepburn, Héctor H. Nava, José Antonio Cruz-Barraza, and Eric Bautista-Guerrero. "Coral boring Aka-species (Porifera: Phloeodictyidae) from Mexico with description of Aka cryptica sp. nov." Journal of the Marine Biological Association of the United Kingdom 87, no. 6 (December 2007): 1477–84. http://dx.doi.org/10.1017/s0025315407055373.

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This paper focuses on Aka species boring coral of the East Pacific Ocean and the Caribbean Sea (Mexico). The new species Aka cryptica sp. nov. is described from Mexican Pacific coral reefs, which constitutes the first time that a species of the genus Aka is reported from the East Pacific Ocean. The new species lives cryptically boring coral species of the genus Pocillopora. It is characterized by the small size of their papillae (from 1 to 4.5 mm high and from 0.8 to 1.8 mm in diameter), and oxeas (from 67 to 120 μm), and their exposed parts blend in well with background colours which tend to be overlooked during benthic marine surveys. In addition, Aka coralliphaga and Aka brevitubulata from Mexican Caribbean coral reefs are redescribed. The latter species is reported for the first time in Mexico.

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Signorelli, Javier H., Berenice Trovant, and Federico Márquez. "A cryptic species of Ensis (Bivalvia: Pharidae) from the southeastern Pacific coast revealed by geometric morphometric methods." Scientia Marina 86, no. 2 (June 15, 2022): e032. http://dx.doi.org/10.3989/scimar.05241.032.

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A new cryptic species of Ensis from the Pacific coast of South America based on geometric morphometrics is revealed. Ensis macha (Molina, 1782) is one of the most important shellfish resources in South America. It was historically reported from San Matías Gulf, Argentina in the Atlantic Ocean to the Peruvian coast in the Pacific. A recent study analysed the intraspecific variation of this species along its distribution range and the genetic results indicated the presence of cryptic diversity. Two evolutionary clades were found: a southern clade (from cold-temperate waters) and a northern clade (from warm-temperate waters). New results based on geometric morphometrics supported the description of Ensis loboi n. sp. for the northern clade. The southern clade retains the name due to type locality of E. macha in Chiloé, Chile. The description of Ensis loboi n. sp. for the southeastern Pacific Ocean has important implications for future studies focused on fisheries management and biogeographical radiation of the group.

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Cernohorsky, Walter Oliver. "Description of new species of Nassariidae (Mollusca, Neogastropoda) from the Pacific Ocean." Bulletin du Muséum national d'histoire naturelle 14, no. 1 (1992): 69–74. http://dx.doi.org/10.5962/p.289866.

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Martín-Cao-Romero, Carolina, Francisco Alonso Solís-Marín, Alfredo Laguarda-Figueras, and Blanca Estela Buitrón Sánchez. "Phataria unifascialis (Valvatida: Ophidiasteridae) from the Eastern Pacific: Redescription and skeletal morphology." Revista de Biología Tropical 65, no. 1-1 (December 8, 2017): 258. http://dx.doi.org/10.15517/rbt.v65i1-1.31694.

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The starfish Phataria unifascialis is widely distributed in the eastern cost of the Pacific Ocean, found on rocky bottoms, at depths between 0 and 50 m. The original description of P. unifascialis made by Gray in 1840 was brief and inaccurate in some important aspects, such as distribution area, plate arrangement and ambulacral spines. Here, we improve the description of P. unifascialis with SEM images and description of its mesodermal skeleton on the basis of a large sample. Rev. Biol. Trop. 65(Suppl. 1): S258-S271. Epub 2017 November 01.

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Švambarytė, Dalia. "Georg Forster in Vilnius: Reverberations of the great age of ocean navigation." Acta Orientalia Vilnensia 10, no. 1-2 (January 1, 2009): 139–64. http://dx.doi.org/10.15388/aov.2009.3666.

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Vilnius University This article discusses the contribution to the studies of the ‘Eastern’ and ‘Southern’ lands in the 18th century by naturalist, travel writer, and ethnologist George Forster, who had accompanied his father, Johann Reinhold Forster, on Captain James Cook’s expedition of 1772–5 to circumnavigate the globe and who was a professor of natural history at Vilnius University from 1784 to 1787. The paper presents the background of European long-distance navigation, examines Forster’s contribution to Cook’s second voyage, and reconsiders his work completed at the Vilnian Academy against the broader perspective of the European notions of travel literature and ethnography of the Pacific region, as well as the prospect of Oriental studies, gradually emerging as an academic field in Western Europe and, later on, in Vilnius.

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Su, Yo, Chien-Hsiang Lin, and Hsuan-Ching Ho. "Redescription of the hispidoberycid, Hispidoberyx ambagiosus Kotlyar, 1981 from Taiwan, with comments on its morphology (Beryciformes, Stephanoberycoidei, Hispidoberycidae)." ZooKeys 1182 (October 11, 2023): 19–34. http://dx.doi.org/10.3897/zookeys.1182.111296.

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A rare spiny-scale pricklefish, Hispidoberyx ambagiosus Kotlyar, 1981, is redescribed based on four specimens collected from Taiwan. Their sampling locality represents the northernmost record of the family, which extends the family’s distribution from the eastern Indian Ocean and the South China Sea to northeastern Taiwan in the northwestern Pacific Ocean. A detailed description of these specimens and the first description of its sagittal otoliths are provided. In addition, the specimens are compared with other known specimens. Intraspecific variation of some morphological characters are discussed.

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JANSSEN, ARIE W., STEPHANIE L. BUSH, and NINA BEDNARŠEK. "The shelled pteropods of the northeast Pacific Ocean (Mollusca: Heterobranchia, Pteropoda)." Zoosymposia 13, no. 1 (February 28, 2019): 305–46. http://dx.doi.org/10.11646/zoosymposia.13.1.22.

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An overview of shelled pteropod species of the northeast Pacific Ocean, roughly north of 25°N and east of 160°W is presented. For the 34 recognised species (Limacinidae 6, Creseidae 4, Creseidae ? 2, Cuvierinidae 3, Cliidae 6, Cavoliniidae 10, Peraclidae 2, Clionidae 1) a brief description is given enabling identification. Data are based on several museum collections and the existing literature. For all species the original description and most important synonyms are referenced. Locations of type specimens are recorded as far as is known. All species are illustrated, for many species images of living specimens are included. Cavolinia labiata (d’Orbigny, 1835) is designated type species of Orbignyia Adams, 1859.

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Thorne, L. H., M. G. Conners, E. L. Hazen, S. J. Bograd, M. Antolos, D. P. Costa, and S. A. Shaffer. "Effects of El Niño-driven changes in wind patterns on North Pacific albatrosses." Journal of The Royal Society Interface 13, no. 119 (June 2016): 20160196. http://dx.doi.org/10.1098/rsif.2016.0196.

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Changes to patterns of wind and ocean currents are tightly linked to climate change and have important implications for cost of travel and energy budgets in marine vertebrates. We evaluated how El Niño-Southern Oscillation (ENSO)-driven wind patterns affected breeding Laysan and black-footed albatross across a decade of study. Owing to latitudinal variation in wind patterns, wind speed differed between habitat used during incubation and brooding; during La Niña conditions, wind speeds were lower in incubating Laysan (though not black-footed) albatross habitat, but higher in habitats used by brooding albatrosses. Incubating Laysan albatrosses benefited from increased wind speeds during El Niño conditions, showing increased travel speeds and mass gained during foraging trips. However, brooding albatrosses did not benefit from stronger winds during La Niña conditions, instead experiencing stronger cumulative headwinds and a smaller proportion of trips in tailwinds. Increased travel costs during brooding may contribute to the lower reproductive success observed in La Niña conditions. Furthermore, benefits of stronger winds in incubating habitat may explain the higher reproductive success of Laysan albatross during El Niño conditions. Our findings highlight the importance of considering habitat accessibility and cost of travel when evaluating the impacts of climate-driven habitat change on marine predators.

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Cunningham, Stuart A. "Southern Ocean circulation." Archives of Natural History 32, no. 2 (October 2005): 265–80. http://dx.doi.org/10.3366/anh.2005.32.2.265.

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The Discovery Investigations of the 1930s provided a compelling description of the main elements of the Southern Ocean circulation. Over the intervening years, this has been extended to include ideas on ocean dynamics based on physical principles. In the modern description, the Southern Ocean has two main circulations that are intimately linked: a zonal (west-east) circumpolar circulation and a meridional (north-south) overturning circulation. The Antarctic Circumpolar Current transports around 140 million cubic metres per second west to east around Antarctica. This zonal circulation connects the Atlantic, Indian and Pacific Oceans, transferring and blending water masses and properties from one ocean basin to another. For the meridional circulation, a key feature is the ascent of waters from depths of around 2,000 metres north of the Antarctic Circumpolar Current to the surface south of the Current. In so doing, this circulation connects deep ocean layers directly to the atmosphere. The circumpolar zonal currents are not stable: meanders grow and separate, creating eddies and these eddies are critical to the dynamics of the Southern Ocean, linking the zonal circumpolar and meridional circulations. As a result of this connection, a global three-dimensional ocean circulation exists in which the Southern Ocean plays a central role in regulating the Earth's climate.

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Brune, Sebastian, Maria Esther Caballero Espejo, David Marcolino Nielsen, Hongmei Li, Tatiana Ilyina, and Johanna Baehr. "Oceanic Rossby waves drive inter-annual predictability of net primary production in the central tropical Pacific." Environmental Research Letters 17, no. 1 (January 1, 2022): 014030. http://dx.doi.org/10.1088/1748-9326/ac43e1.

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Abstract In the Pacific Ocean, off-equatorial Rossby waves (RWs), initiated by atmosphere-ocean interaction, modulate the inter-annual variability of the thermocline. In this study, we explore the resulting potential gain in predictability of central tropical Pacific primary production, which in this region strongly depends on the supply of macronutrients from below the thermocline. We use a decadal prediction system based on the Max Planck Institute Earth system model to demonstrate that for the time period 1998–2014 properly initialized RWs explain an increase in predictability of net primary productivity (NPP) in the off-equatorial central tropical Pacific. We show that, for up to 5 years in advance, predictability of NPP derived from the decadal prediction system is significantly larger than that derived from persistence alone, or an uninitialized historical simulation. The predicted signal can be explained by the following mechanism: off-equatorial RWs are initiated in the eastern Pacific and travel towards the central tropical Pacific on a time scale of 2–6 years. On their arrival the RWs modify the depths of both thermocline and nutricline, which is fundamental to the availability of nutrients in the euphotic layer. Local upwelling transports nutrients from below the nutricline into the euphotic zone, effectively transferring the RW signal to the near-surface ocean. While we show that skillful prediction of central off-equatorial tropical Pacific NPP is possible, we open the door for establishing predictive systems for food web and ecosystem services in that region.

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Sriver, Ryan L., Axel Timmermann, Michael E. Mann, Klaus Keller, and Hugues Goosse. "Improved Representation of Tropical Pacific Ocean–Atmosphere Dynamics in an Intermediate Complexity Climate Model." Journal of Climate 27, no. 1 (January 1, 2014): 168–85. http://dx.doi.org/10.1175/jcli-d-12-00849.1.

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Abstract A new anomaly coupling technique is introduced into a coarse-resolution dynamic climate model [the Liège Ocean Carbon Heteronomous model (LOCH)–Vegetation Continuous Description model (VECODE)–Earth System Models of Intermediate Complexity Climate deBilt (ECBILT)–Coupled Large-Scale Ice–Ocean model (CLIO)–Antarctic and Greenland Ice Sheet Model (AGISM) ensemble (LOVECLIM)], improving the model’s representation of eastern equatorial Pacific surface temperature variability. The anomaly coupling amplifies the surface diabatic atmospheric forcing within a Gaussian-shaped patch applied in the tropical Pacific Ocean. It is implemented with an improved predictive cloud scheme based on empirical relationships between cloud cover and key state variables. Results are presented from a perturbed physics ensemble systematically varying the parameters controlling the anomaly coupling patch size, location, and amplitude. The model’s optimal parameter combination is chosen through calibration against the observed power spectrum of monthly-mean surface temperature anomalies in the Niño-3 region. The calibrated model exhibits substantial improvement in equatorial Pacific interannual surface temperature variability and robustly reproduces El Niño–Southern Oscillation (ENSO)-like variability. The authors diagnose some of the key atmospheric and oceanic feedbacks in the model important for simulating ENSO-like variability, such as the positive Bjerknes feedback and the negative heat flux feedback, and analyze the recharge–discharge of the equatorial Pacific ocean heat content. They find LOVECLIM robustly captures important ocean dynamics related to thermocline adjustment and equatorial Kelvin waves. The calibrated model demonstrates some improvement in simulating atmospheric feedbacks, but the coupling between ocean and atmosphere is relatively weak. Because of the tractability of LOVECLIM and its consequent utility in exploring long-term climate variability and large ensemble perturbed physics experiments, improved representation of tropical Pacific ocean–atmosphere dynamics in the model may more readily allow for the investigation of the role of tropical Pacific ocean–atmosphere dynamics in past climate changes.

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HO, HSUAN-CHING, and CHIH-HSIUNG HUANG. "First adult record, redescription and distribution of Stemonosudis elongata (Aulopiformes: Paralepididae)." Zootaxa 5189, no. 1 (September 23, 2022): 131–37. http://dx.doi.org/10.11646/zootaxa.5189.1.15.

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The original description of Macroparalepis elongatus Ege, 1933 (family Paralepididae) was based on a young specimen taken from Sri Lanka. No adult information is available since it was described. Six additional specimens, including three adults and three young specimens, were found in the museum collections. The adult morphology is described for the first time and its distribution range is now extended to South Pacific Ocean off New Caledonia and Australia, and the Western Indian Ocean off Madagascar. Detailed description and comparison of these specimens and the holotype, as well as a revised diagnosis for the species, are provided.

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SAUTYA, SABYASACHI, KONSTANTIN R. TABACHNICK, and BABAN INGOLE. "First record of Hyalascus (Hexactinellida: Rossellidae) from the Indian Ocean, with description of a new species from a volcanic seamount in the Andaman Sea." Zootaxa 2667, no. 1 (November 4, 2010): 64. http://dx.doi.org/10.11646/zootaxa.2667.1.5.

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GUERRERO-KOMMRITZ, JÜRGEN. "Portaratrum, a new genus of deep-sea Tanaidacea (Crustacea) with description of two new species." Zootaxa 282, no. 1 (September 2, 2003): 1. http://dx.doi.org/10.11646/zootaxa.282.1.1.

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A new genus, Portaratrum n. gen. and two new species, one from the Atlantic Ocean and one from the Pacific Ocean are described. The new genus is characterized by a downwardly directed pleonal spur, cheliped basis fused to the cephalothorax, biramous uropods, pars molaris blunt with several terminal spinules. At present the genus is assigned to the family Colletteidae. Both species were collected from depths exceeding 4000 m.

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GON, OFER, JAMES MACLAINE, MARTIN A. COLLINS, GWYNNETH MATCHER, and JOHN J. POGONOSKI. "The type series of Poromitra crassiceps (Pisces, Melamphaidae) with lectotype designation." Zootaxa 5389, no. 4 (December 21, 2023): 473–82. http://dx.doi.org/10.11646/zootaxa.5389.4.5.

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The type series of Poromitra crassiceps (Günther, 1878) was thought to include specimens from four localities in the Atlantic, Pacific, and Southern oceans. Comparison of the extant syntypes with the original description revealed that the specimen from the Pacific Ocean was not included in the original type series; one syntype from the Atlantic Ocean was never incorporated into the collection of the Natural History Museum, London, and is considered lost, and another cannot be identified due to its bad condition. The fourth syntype, from the Southern Ocean and in the best condition, is designated lectotype of this species. Molecular analysis of tissue samples collected by us as well as publically available COI sequences showed that only one species, P. crassiceps, is currently known from the Southern Ocean. Specimens from this ocean named P. atlantica (Norman, 1929) in the literature and in collections are probably misidentifications of P. crassiceps. The validity of P. atlantica needs confirmation from fresh material from the type locality.

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Luis, Diego Javier. "Galleon Anxiety: How Afro-Mexican Women Shaped Colonial Spirituality in Acapulco." Americas 78, no. 3 (July 2021): 389–413. http://dx.doi.org/10.1017/tam.2021.46.

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AbstractAcapulco became a global town during the early seventeenth century, characterized not only by transpacific trade, but also by an increasingly large Afro-Mexican population residing and laboring at the port. A cohort of Afro-Mexican women gained prominence and visibility by delivering accurate predictions on the arrival of galleons to Acapulco. They adapted mixed African and Indigenous divination practices to calm port residents worried about galleon losses on the world's largest ocean. Scholarship on the Spanish Pacific has yet to investigate how the globalization of New Spain through galleon travel affected African and Afro-descendant communities. This article contends that the dangers of Pacific travel, and anxieties about them, frequently exceeded the therapeutic capacities of Catholic dogma. Black women, drawing on the profound West and West Central African estimation of female diviners, practiced clairvoyance to report on the location of galleons and whether they would arrive safely. The confluence of an increasing population of Afro-Mexicans with the economic dynamism of transpacific trade transformed spiritual life at the eastern node of Spain's Pacific empire. Black women positioned themselves at the center of these massive structural transformations and ultimately created new cultures as spiritual authorities in Acapulco.

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HERNÁNDEZ-PAYÁN, JOSÉ CARLOS, and MICHEL E. HENDRICKX. "Amblyopsoides ohlinii (W.M. Tattersall, 1951) (Peracarida, Mysida, Mysidae) in western Mexico." Zootaxa 4878, no. 1 (November 12, 2020): 169–81. http://dx.doi.org/10.11646/zootaxa.4878.1.8.

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The rare pelagic mysid Amblyopsoides ohlinii (W.M. Tattersall, 1951) is reported for the first time off western Mexico and represents the first record in the Pacific Ocean south of Japan and the Kurile-Kamchatka Trench. So far, this species only has been recorded from seven localities in the North Atlantic and in the North Pacific. A complete description of the only specimen available (a male), including illustrations of all appendages and SEM images of the mandibles, is provided.

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Korolev, P., Yu Korolev, and A. Loskutov. "The hindcast of recent tsunamis in Northern Pacific." IOP Conference Series: Earth and Environmental Science 946, no. 1 (December 1, 2021): 012023. http://dx.doi.org/10.1088/1755-1315/946/1/012023.

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Abstract Three earthquakes occurred in the North Pacific in 2020, causing observable tsunamis. The tsunamis were not devastating. Numerical modelling of tsunami propagation was performed to reproduce operational forecasting (retrospective analysis) of waveforms at deep-water stations. Direct calculation of tsunami using USGS finite-fault source data on GPU was carried out. The leap-frog (Arakawa staggered grid) scheme calculation over the Pacific Ocean on a regular grid with a spatial step of 0.5 arc minutes of 1440 min (1 day) tsunami propagation was performed in approximately 90 min of computer time. With use of a hybrid cluster with several GPU accelerators and proper optimization of the simulation algorithm, this time can be reduced by tens of times. Consequently, the time for estimating the transfer function will be comparable to the travel time of a tsunami to the stations, where the forecasts data is. It will make possible to forecast the shape of a tsunami at any point with a lead time enough to decide for tsunami alert at sites where a tsunami poses a real danger. The calculation results are in good agreement with the real data of deep-ocean measurements. The quality of the forecast is comparable to the quality of calculations by other methods.

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SIMONE, LUIZ RICARDO L., and CARLO M. CUNHA. "Revision of genera Gaza and Callogaza (Vetigastropoda, Trochidae), with description of a new Brazilian species." Zootaxa 1318, no. 1 (September 21, 2006): 1. http://dx.doi.org/10.11646/zootaxa.1318.1.1.

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A revision of the trochid genera Gaza and Callogaza, inhabiting the deep waters of western Atlantic Ocean and eastern Pacific Ocean, is here provided. Species are separated mainly by shell characters, but anatomical features are also used in some species. The species considered in this study are: Gaza compta n. sp. (SE Brazil), G. daedala Watson, 1879 (Central Pacific), G. rathbuni Dall, 1890 (tropical W Pacific), G. fischeri Dall, 1889 (E Caribbean), G. superba (Dall, 1881) (Gulf of Mexico and Caribbean), G. cubana Clench & Aguayo, 1940 (N Caribbean), G. olivacea Quinn, 1991 (NE South America and SE Brazil), Callogaza watsoni Dall, 1881 (Gulf of Mexico), C. sericata (Kira, 1959) (NW Pacific) and C. frederici (Smith, 1906) (S India). Anatomical data are provided for: Gaza compta, G. olivacea, G, fischeri, G. superba and G. cubana. Both Gaza and Callogaza are characterized by having iridescent, thin-walled shell, with the outer lip deflected (determined growth), and a flat callus partially or completely covering the wide umbilicus, making it a hollow chamber. Anatomically, the examined Gaza spp. have long epipodial tentacles and two series of holes between the propodium and the base of the head. The number of these structures can assist in the differentiation of species. Based on similarities of the shell and comparison with species of other trochid genera, we conclude that Gaza and Callogaza have some characters in common, which most probably constitute synapomorphies that support a monophyletic branch of the family. Microgaza is not regarded as part of this trochid branch, but may rather belong to Solariellinae.

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Ekimova, Irina A., Tatiana I. Antokhina, and Dimitry M. Schepetov. "Molecular data and updated morphological description of Flabellina rubrolineata (Nudibranchia: Flabellinidae) from the Red and Arabian seas." Ruthenica, Russian Malacological Journal 30, no. 4 (October 1, 2020): 183–94. http://dx.doi.org/10.35885/ruthenica.2021.30(4).1.

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Flabellina rubrolineata was believed to have a wide distribution range, being reported from the Mediterranean Sea (non-native), the Red Sea, the Indian Ocean and adjacent seas, and the Indo-West Pacific and from Australia to Hawaii. In the present paper, we provide a redescription of Flabellina rubrolineata, based on specimens collected near the type locality of this species in the Red Sea. The morphology of this species was studied using anatomical dissections and scanning electron microscopy. To place this species in the phylogenetic framework and test the identity of other specimens of F. rubrolineata from the Indo-West Pacific we sequenced COI, H3, 16S and 28S gene fragments and obtained phylogenetic trees based on Bayesian and Maximum likelihood inferences. Our morphological and molecular results show a clear separation of F. rubrolineata from the Red Sea from its relatives in the Indo-West Pacific. We suggest that F. rubrolineata is restricted to only the Red Sea, the Arabian Sea and the Mediterranean Sea and to West Indian Ocean, while specimens from other regions belong to a complex of pseudocryptic species.

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Bi, Si-Zhao, Zhao-Hui Peng, Guang-Xu Wang, Zhi-Min Xie, and Ling-Shan Zhang. "Characteristics of long-range sound propagation in western Pacific." Acta Physica Sinica 71, no. 21 (2022): 214302. http://dx.doi.org/10.7498/aps.71.20220566.

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Acoustic signals can travel thousands of kilometers in seawater, and the characteristics of long-range sound propagation are different from short range propagation. This paper is based on a long-range underwater acoustic experimental data obtained from the western Pacific Ocean, where the farthest propagation distance is nearly 2000 km. The ocean environment information and vertical line array information are carefully processed. We analyze the attenuation of long-distance acoustic propagation in seawater and multi-path arrival structure characteristics under the complete acoustic channel environment of the ocean. In terms of the attenuation law of long-distance propagation energy, with the increase of propagation distance, the effect of seawater absorption on the attenuation of sound energy becomes prominent, and the selection of absorption coefficient is very important for the accurate prediction of sound field energy. Absorption in seawater of low frequency signals is small, and the transmission loss of acoustic signal with 100 Hz center frequency increases only by about 6dB when the propagation distance increases from 1000 km to 2000 km. In terms of multi-path arrival structure characteristics of deep-sea acoustic channel for long-distance sound propagation, the thermocline sound velocity profile in the experimental sea area has a higher sound speed, making the number of eigenrays reaching the receiving point more and the multi-path arrival structure more complex. The arrival structure formed by sea surface reflected eigenrays is at the earlier position of the overall arrival structure and has relatively strong energy. Owing to the influence of subtropical water over the northwest Pacific Ocean on the sound speed profile, the time of some eigenrays arriving at the receiving point is earlier, and the length of multi-way arrival structure on the time axis is prolonged.

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CARBALLO, JOSÉ LUIS, JOSÉ ANTONIO CRUZ-BARRAZA, and PATRICIA GÓMEZ. "Taxonomy and description of clionaid sponges (Hadromerida, Clionaidae) from the Pacific Ocean of Mexico." Zoological Journal of the Linnean Society 141, no. 3 (July 2004): 353–97. http://dx.doi.org/10.1111/j.1096-3642.2004.00126.x.

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35

Shaffrey, L. C., I. Stevens, W. A. Norton, M. J. Roberts, P. L. Vidale, J. D. Harle, A. Jrrar, et al. "U.K. HiGEM: The New U.K. High-Resolution Global Environment Model—Model Description and Basic Evaluation." Journal of Climate 22, no. 8 (April 15, 2009): 1861–96. http://dx.doi.org/10.1175/2008jcli2508.1.

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Abstract This article describes the development and evaluation of the U.K.’s new High-Resolution Global Environmental Model (HiGEM), which is based on the latest climate configuration of the Met Office Unified Model, known as the Hadley Centre Global Environmental Model, version 1 (HadGEM1). In HiGEM, the horizontal resolution has been increased to 0.83° latitude × 1.25° longitude for the atmosphere, and 1/3° × 1/3° globally for the ocean. Multidecadal integrations of HiGEM, and the lower-resolution HadGEM, are used to explore the impact of resolution on the fidelity of climate simulations. Generally, SST errors are reduced in HiGEM. Cold SST errors associated with the path of the North Atlantic drift improve, and warm SST errors are reduced in upwelling stratocumulus regions where the simulation of low-level cloud is better at higher resolution. The ocean model in HiGEM allows ocean eddies to be partially resolved, which dramatically improves the representation of sea surface height variability. In the Southern Ocean, most of the heat transports in HiGEM is achieved by resolved eddy motions, which replaces the parameterized eddy heat transport in the lower-resolution model. HiGEM is also able to more realistically simulate small-scale features in the wind stress curl around islands and oceanic SST fronts, which may have implications for oceanic upwelling and ocean biology. Higher resolution in both the atmosphere and the ocean allows coupling to occur on small spatial scales. In particular, the small-scale interaction recently seen in satellite imagery between the atmosphere and tropical instability waves in the tropical Pacific Ocean is realistically captured in HiGEM. Tropical instability waves play a role in improving the simulation of the mean state of the tropical Pacific, which has important implications for climate variability. In particular, all aspects of the simulation of ENSO (spatial patterns, the time scales at which ENSO occurs, and global teleconnections) are much improved in HiGEM.

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36

MARTINS, LUCIANA. "Taxonomy of the genus Thyonella (Holothuroidea: Dendrochirotida), with mention of the first record of T. sabanillaensis from the southwestern Atlantic Ocean." Zootaxa 4527, no. 1 (December 3, 2018): 75. http://dx.doi.org/10.11646/zootaxa.4527.1.6.

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The genus Thyonella currently comprises four species which occur in the Atlantic and Pacific Oceans. Thyonella mexicana is the only species known to occur in the Pacific Ocean. The main morphological characters used to distinguish Thyonella species are their dermal ossicles. Since the differences among these characters are subtle, this contribution provides a detailed description and comparison of the ossicle assemblage of the concerned taxa. In addition, description of the internal morphology of three of the concerned species is also provided. Further, this study reports on the first record of Thyonella sabanillaensis for the Southwestern Atlantic. A worldwide revision of the distributional records of Thyonella species is presented and their taxonomy is discussed, concluding that some traditional taxonomic characters should be used cautiously. A brief discussion about the importance of SEM analysis is also provided.

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37

Galletly, Sarah. "The Spectacular Traveling Woman." Transfers 7, no. 1 (March 1, 2017): 70–87. http://dx.doi.org/10.3167/trans.2017.070106.

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This article applies recent scholarship concerned with transatlantic mobility and print cultures to a comparative study of images of transpacific travel for women during the interwar period. During the 1920s and 1930s female travelers splashed spectacularly across the pages of mainstream, popular magazines produced in America, Britain, and the wider Anglophone world. Focusing on two magazines that launched in this era, The Australian Woman’s Mirror (1924– 1961) and Chatelaine (1928–), this article explores Australian and Canadian fi ctional portrayals of the traveling woman of the interwar years to examine the ways in which the mobility of the modern girl became a screen for anxieties and fantasies of these two national print imaginaries. By paying attention to the different portrayals of female mobility through the Pacific from both sides of the ocean, this article also considers the intersection between actual travel, ideas about travel, and notions of gendered social mobility.

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38

CARBALLO, JOSÉ LUIS, and JOSÉ ANTONIO CRUZ-BARRAZA. "First record of Axinyssa Lendenfeld, 1897 (Demospongiae, Halichondrida) from the East Pacific Ocean, with the description of Axinyssa isabela sp. nov." Zootaxa 1784, no. 1 (June 6, 2008): 58. http://dx.doi.org/10.11646/zootaxa.1784.1.4.

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A new species of Axinyssa Lendenfeld, 1897 (Halichondriidae, Halichondrida) is described from the Mexican Pacific Ocean, which constitutes the first record of the genus in the Eastern Pacific Ocean. Axinyssa isabela sp. nov. is an incrusting to massive cushion-shaped yellow sponge without ectosomal skeleton. The ectosome is simply a thin, translucent, partly detachable collagen layer. The collagen is also abundant in the choanosome, while spicular density is relatively low. The choanosomal skeleton is confused with ascending single spicules or spicules grouped in tracts. The tracts become slightly more organized towards the periphery, protruding on the surface in spicule bundles or in single spicules. Spicules are oxeas and derivates (styles and strongyles), 200 to 780 µm long and 3 to 15 µm thick. So far, despite the sampling of a large number of localities along the Mexican Pacific Coast during the last years, Axinyssa isabela sp. nov. has been found only at National Park “Isla Isabel” (Nayarit, Mexico), where it is relatively common, in vertical walls, small caves and overhangs at depths between 4 and 20 m.

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39

Kusumawati, Elly, Elise Dwi Lestari, and Agus Prawoto. "Juridical Review of The Implementation of Marine Cargo Insurance On The Sea Freight Agreement at PT. Sinar Mas Insurance." Devotion Journal of Community Service 3, no. 13 (November 14, 2022): 2202–20. http://dx.doi.org/10.36418/dev.v3i13.276.

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The Indonesian nation is located along equator, a a very strategic potential that crosses between two ocean big, that is Ocean Indian and Ocean Pacific, and between two continent that is Asia and Australia continents. Beside that the Indonesian people have riches diverse nature variety, both on land as well as at sea. Study this aim for get description how Overview Juridical Implementation of Marine Cargo Insurance in the Agreement Freight Sea at PT. Insurance Sinar Mas for interpreted to in a the description presented in form of words. Study this aim for get description how Overview Juridical Implementation of Marine Cargo Insurance in the Agreement Freight Sea at PT. Insurance Sinar Mas for interpreted to in a the description presented in form of words. because of that, research this use approach qualitative descriptive. Condition coverage in Marine Cargo Insurance guaranteed by PT. Insurance Sinar Mas serves 3 (three) conditions coverage. Election condition by the insured influence quantity premium must paid as well as breadth guarantee the danger posed by the insurer. So that the consequences is condition of the policy purchased in accordance the dangers that can guaranteed that 's what can submitted accompanied completeness document claim.

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40

Bruce, NL, and LRG Cannon. "Ascaridoid nematodes from sharks from Australia and the Solomon Islands, southwestern Pacific Ocean." Invertebrate Systematics 4, no. 4 (1990): 763. http://dx.doi.org/10.1071/it9900763.

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Genera and species of ascaridoid nematodes are recorded from Australian and Solomon Island sharks. The genera represented are Acanthocheilus (Acanthocheilidae), Terranova and Pulchrascaris (Ascarididae). Remarks are given on Acanthocheilus australis. The genus Terranova is rediagnosed and descriptions are given for Terranova galeocerdonis, T. pristis and T. scoliodontis, with descriptive notes for T. ginglymostomae. Description is given for P. chiloscylii and notes for Pulchrascaris sp. Keys are provided for the Australian genera of Ascaridoidea from fish hosts and to the species of Terranova recovered from sharks.

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41

PEARSON, KAILA A. M., and GREG W. ROUSE. "Vampire Worms; A revision of Galapagomystides (Phyllodocidae, Annelida), with the description of three new species." Zootaxa 5128, no. 4 (April 22, 2022): 451–85. http://dx.doi.org/10.11646/zootaxa.5128.4.1.

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Galapagomystides is an exclusively deep-sea group of Phyllodocidae, originally erected for Galapagomystides aristata from hydrothermal vents of the Galapagos Rift. In this study, Phyllodocidae collected from hydrothermal vents and methane seeps from the Pacific Ocean, including specimens from vents of the East Pacific Rise identified as Galapagomystides were studied using morphology (light microscopy and scanning electron microscopy) and DNA sequence data. Phylogenetic analysis of the newly generated molecular data (cytochrome c oxidase subunit I, 16S rRNA, 18S rRNA, and 28S rRNA) combined with an already available extensive dataset for Phyllodocidae resulted in a monophyletic Galapagomystides comprising five species. Galapagomystides aristata was found to occur on the East Pacific Rise vents as well as the Galapagos Rift and is redescribed. Two new species were from hydrothermal vents in the West Pacific, G. bobpearsoni n. sp., and G. kathyae n. sp., as well as one new species from a cold seep in the eastern Pacific, G. patricki n. sp. These new species are formally described, and a previously known vent species, Protomystides verenae, is redescribed and transferred to Galapagomystides. Galapagomystides verenae n. comb. was found to occur in both vents and seeps in the eastern Pacific, from Oregon to Costa Rica. The diagnosis of Galapagomystides is amended and the biogeography and habitat evolution of the five species of Galapagomystides is discussed.

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Kusahara, Kazuya, and Kay I. Ohshima. "Kelvin Waves around Antarctica." Journal of Physical Oceanography 44, no. 11 (November 1, 2014): 2909–20. http://dx.doi.org/10.1175/jpo-d-14-0051.1.

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Abstract The Southern Ocean allows circumpolar structure and the Antarctic coastline plays a role as a waveguide for oceanic Kelvin waves. Under the cyclic conditions, the horizontal wavenumbers and frequencies for circumpolarly propagating waves are quantized, with horizontal wavenumbers 1, 2, and 3, corresponding to periods of about 32, 16, and 11 h, respectively. At these frequencies, westward-propagating signals are detected in sea level variation observed at Antarctic coastal stations. The occurrence frequency of westward-propagating signals far exceeds the statistical significance, and the phase speed of the observed signal agrees well with the theoretical phase speed of external Kelvin waves. Therefore, this study concludes that the observed, westward-propagating sea level variability is a signal of the external Kelvin waves of wavenumbers 1, 2, and 3 around Antarctica. A series of numerical model experiments confirms that Kelvin waves around Antarctica are driven by surface air pressure and that these waves are excited not only by local forcing over the Southern Ocean, but also by remote forcing over the Pacific Ocean. Sea level variations generated over the Pacific Ocean can travel to the western side of the South American coast and cross over Drake Passage to the Antarctic continent, constituting a part of the Kelvin waves around Antarctica.

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Oliveira, Tiago C. A., Dirk Metz, Ying-Tsong Lin, Christos Saragiotis, and Michael L. Begnaud. "Conversion from seismic to underwater sound waves along the Louisville Seamount Chain." Journal of the Acoustical Society of America 155, no. 5 (May 1, 2024): 3371–79. http://dx.doi.org/10.1121/10.0026115.

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The conversion from seismic to ocean-acoustic waves occurs in different places on the bottom of the ocean, often hundreds to thousands of kilometers away from the epicenter. Here, we investigate this conversion process by studying 15 large-magnitude earthquakes that occurred between 2014 and 2022 along the Kermadec Arc in the southwestern Pacific Ocean. To pinpoint the location where seismic-to-acoustic conversion takes places, we analyze hydroacoustic signals recorded by a hydrophone triplet station of the International Monitoring System in the Juan Fernández archipelago. Results from direction-of-arrival and travel-time calculations indicate that the location of the conversion zone largely matches segments of the Louisville Seamount Chain, its lateral extent ranging from approximately 300 to 1800 km, and its location depending on the geometry between earthquake epicenter and the seamounts.

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44

Kamenev, Gennady M. "Little-known arctic species Montacuta spitzbergensis (Bivalvia: Montacutidae) from the north-western Pacific with notes on Montacuta substriata and Tellimya ferruginosa." Journal of the Marine Biological Association of the United Kingdom 88, no. 2 (March 2008): 347–56. http://dx.doi.org/10.1017/s0025315408000568.

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An expanded description of a little-known arctic species Montacuta spitzbergensis from the Sea of Okhotsk with new data on its morphology, ecology and geographical distribution is given. This is the first record of M. spitzbergensis from the north-western Pacific. It differs from other species of Montacuta in its large (to 8.4 mm), elongate–ovate, thick shell with wide, slightly curved hinge plate, wide, short, and shallow resilifer, and weakly developed external ligament. This species occurs in the Arctic Ocean (Spitsbergen, Barents, Kara, Laptev and Chukchi Seas) and the Pacific Ocean (Sea of Okhotsk) at depths from 9 to 232 m at a bottom temperature from −1.62°C to +2.50°C. The hinge structure of the type species of the genera Montacuta and Tellimya is also discussed.

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45

STEWART, ANDREW L., CHRISTOPHER P. KENALEY, and TRACY SUTTON. "A new species of Eustomias (Nominostomias) (Stomiiformes: Stomiidae) from the Kermadec Ridge—Tonga Trench region, western South Pacific Ocean, with notes on the barbel morphology of E. trewavasae." Zootaxa 5458, no. 1 (May 27, 2024): 93–107. http://dx.doi.org/10.11646/zootaxa.5458.1.5.

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A new species of dragonfish Eustomias (Nominostomias) robertsi is described from the western South Pacific Ocean. The new species, the first record of a member of Eustomias (Nominostomias) Group III (sensu Gibbs et al. 1983) from the region, it is most similar to Eustomias suluensis in barbel morphology. However, it has a smaller proximal and distal bulb distance, the smallest distal inter–bulb value in the group, and much longer terminal filaments. Comments are also provided on the morphology of the diagnostic features on the barbel of Eustomias trewavasae, including an important character overlooked in the original description of the species. The barbel morphology is redescribed taking this into account. A brief observation is made recording the first record of the subgenus Triclonostomias from the western South Pacific Ocean.

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Goodman, Paul J., Wilco Hazeleger, Pedro de Vries, and Mark Cane. "Pathways into the Pacific Equatorial Undercurrent: A Trajectory Analysis*." Journal of Physical Oceanography 35, no. 11 (November 1, 2005): 2134–51. http://dx.doi.org/10.1175/jpo2825.1.

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Abstract A time-dependent trajectory algorithm is used to determine the sources of the Pacific Ocean Equatorial Undercurrent (EUC) in a global climate model with ¼° (eddy permitting) resolution and forced with realistic winds. The primary sources and pathways are identified, and the transformation of properties in temperature/salinity space is explored. An estimate for the quantity of recirculation, a notoriously difficult property to estimate from observational data, is given. Over two-thirds of the water in the Pacific EUC at 140°W originates south of the equator; 70% of the EUC is ventilated outside of the Tropics (poleward of 13°S or 10°N): three-quarters of these extratropical trajectories travel through the western boundary currents between their subduction and incorporation into the EUC, and one-fifth of the extratropical trajectories enter and leave the tropical band at least once before entering the EUC.

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Chen, Wanying, Jieying Na, and Dongsheng Zhang. "Description of three species of ophioplinthacids, including a new species, from a deep seamount in the Northwest Pacific Ocean." PeerJ 9 (July 2, 2021): e11566. http://dx.doi.org/10.7717/peerj.11566.

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Five specimens of brittle star were collected from a deep-sea seamount in the Northwest Pacific, and identified into three species. One which is new to science, Ophioplinthaca grandisquama n. sp., can be easily distinguished from its congeners by the distinctly elongated and stout tentacle scales, stout and long disc spines, capitate with typically elongate to flaring head bearing numerous distinct thorns, radial shields roughly triangular and contiguous distally. One specimen was identified as Ophioplinthaca semele (Clark, 1949), which had been reported in Hawaii seamounts, is a new record of this species in the Northwest Pacific. The remaining specimen was an unknown species of Ophioplinthaca, with some different characteristics from other species of Ophioplinthaca. However, we, herein, prefer not to attach a name to this specimen until more morphological characteristics are available. The finding of this new species and two new records further enriches the distribution of Ophioplinthaca in the seamount of Northwest Pacific, providing useful information for marine protection in the cobalt-rich area.

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48

Panarina, Daria S. "Meeting Southeast Asia and South Pacific Region in the Museum of the World Ocean in Svetlogorsk." South East Asia: Actual problems of Development, no. 3 (48) (2020): 256–70. http://dx.doi.org/10.31696/2072-8271-2020-3-3-48-256-270.

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The article is a brief overview of the exhibition "People of the Sea" in the Museum of the World Ocean, presented at the International Exhibition Center in Svetlogorsk. The article is based on travel notes and impressions of the author after visiting this exhibition. It explains the history of its appearance, touches upon the person who started and arranged the basis of the collection, provides some information on the culture of the Southeast Asia countries mentioned in the exhibition, such as, for example, New Guinea or Indonesia. The article is illustrated with photographs of the exhibits from the museum website and from the author's personal archive.

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HALÁSZ, ANNA, CATHERINE S. MCFADDEN, ROBERT TOONEN, and YEHUDA BENAYAHU. "Re-description of type material of Xenia Lamarck, 1816 (Octocorallia: Xeniidae)." Zootaxa 4652, no. 2 (August 8, 2019): 201–39. http://dx.doi.org/10.11646/zootaxa.4652.2.1.

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In this study we examined the original types of 21 of the 56 morphospecies of Xenia currently listed in WoRMS. Unfortunately, our attempts to locate additional type material failed, and we conclude that they have been lost. The type localities of the material examined include the Red Sea, West and Central Indian Ocean, the South Pacific, Indonesia, The Philippines, and the Bismarck Sea, reflecting the extensive biogeographical distribution of this genus throughout the Indo-Pacific Ocean. A neotype was designated from the northern Red Sea for X. umbellata, and sequencing established its position in the phylogenetic tree in relation to other genera of the family Xeniidae. In addition, X. flexibilis n. sp. was described from The Philippines. The findings from the current study led to the synonymizing of X. actuosa with X. sansibariana and of X. plicata with X. blumi. Overall, the study has re-described the types of 17 species considered to be valid based on morphological characters. Validation of the morphological features of original type material along with species-diagnostic genetic characters are required in order to facilitate our ability to correctly employ Latin binomials, both in phylogenetic studies and in any other biological surveys.

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Martins, Luciana, and Marcos Tavares. "Ypsilothuria bitentaculata bitentaculata (Echinodermata: Holothuroidea) from the southwestern Atlantic, with comments on its morphology." Zoologia 35 (March 9, 2018): 1–6. http://dx.doi.org/10.3897/zoologia.35.e24573.

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Abstract:

Ypsilothuria bitentaculata bitentaculata(Ludwig, 1893), previously known from several localities in the Pacific Ocean, is recorded herein for the first time from the southwestern Atlantic Ocean based on eight specimens caught off the coast of southeastern Brazil, between 505–511 m deep. Several morphological details are added to the description ofY. b. bitentaculata, including photographs of specimens and calcareous ring plates, as well as scanning electron microscope images of the ossicles from the body wall, oral and anal siphons and introvert. Additionally,Y. b. bitentaculatais compared to its congeners.

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Journal articles on the topic 'Pacific ocean, description and travel'

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