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Journal articles on the topic 'Angel sharks'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 January 2023

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1

Giovos, Ioannis, Dimitra Katsada, Roxani Naasan Aga Spyridopoulou, et al. "Strengthening Angel Shark Conservation in the Northeastern Mediterranean Sea." Journal of Marine Science and Engineering 10, no. 2 (2022): 269. http://dx.doi.org/10.3390/jmse10020269.

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Angel sharks are among the most threatened species of sharks globally. Twenty-two species have been identified globally so far, with three species being present in the Mediterranean Sea: Squatina aculeata, Squatina oculata, and Squatina squatina. The Mediterranean populations of all three species have been assessed as Critically Endangered by the IUCN Red List of Threatened Species due to the steep decline of their populations as a result of their historical and current overexploitation by demersal fisheries. Therefore, currently there is an ongoing increasing effort for advancing the conserva

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2

Egeberg, Channing A., Ryan M. Kempster, Susan M. Theiss, Nathan S. Hart, and Shaun P. Collin. "The distribution and abundance of electrosensory pores in two benthic sharks: a comparison of the wobbegong shark, Orectolobus maculatus, and the angel shark, Squatina australis." Marine and Freshwater Research 65, no. 11 (2014): 1003. http://dx.doi.org/10.1071/mf13213.

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Electroreception is an ancient sense found in many aquatic animals, including sharks, which may be used in the detection of prey, predators and mates. Wobbegong sharks (Orectolobidae) and angel sharks (Squatinidae) represent two distantly related families that have independently evolved a similar dorso-ventrally compressed body form to complement their benthic ambush feeding strategy. Consequently, these groups represent useful models in which to investigate the specific morphological and physiological adaptations that are driven by the adoption of a benthic lifestyle. In this study, we compar

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3

LAST, PETER R., and WILLIAM T. WHITE. "Three new angel sharks (Chondrichthyes: Squatinidae) from the Indo-Australian region." Zootaxa 1734, no. 1 (2008): 1. http://dx.doi.org/10.11646/zootaxa.1734.1.1.

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Four species of angel sharks (family Squatinidae) occur in temperate and subtropical Australian waters. Two of these, Squatina albipunctata sp. nov. and S. pseudocellata sp. nov., which occur mainly off subtropical eastern and western Australia respectively, are formally described and illustrated. The new species differ from temperate Australian species, S. australis and S. tergocellata, in morphometrics, meristics, squamation, and coloration. Another new angel shark, S. legnota sp. nov. from eastern Indonesia, is compared to these species. Unlike Australian Squatina, it has unfringed (rather

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4

Natanson, Lisa J., and Gregor M. Cailliet. "Vertebral Growth Zone Deposition in Pacific Angel Sharks." Copeia 1990, no. 4 (1990): 1133. http://dx.doi.org/10.2307/1446499.

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5

Boulton, Thomas J., Thomas D. Shohfi, and Pengcheng Zhu. "Angels or Sharks? The Role of Personal Characteristics in Angel Investment Decisions." Journal of Small Business Management 57, no. 4 (2018): 1280–303. http://dx.doi.org/10.1111/jsbm.12409.

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6

Gonzalez-Pestana, Adriana, Carlos Kouri J., and Ximena Velez-Zuazo. "Shark fisheries in the Southeast Pacific: A 61-year analysis from Peru." F1000Research 3 (July 21, 2014): 164. http://dx.doi.org/10.12688/f1000research.4412.1.

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Peruvian waters exhibit high conservation value for sharks. This contrasts with a lag in initiatives for their management and a lack of studies about their biology, ecology and fishery. We investigated the dynamics of Peruvian shark fishery and its legal framework identifying information gaps for recommending actions to improve management. Further, we investigated the importance of the Peruvian shark fishery from a regional perspective. From 1950 to 2010, 372,015 tons of sharks were landed in Peru. From 1950 to 1969, we detected a significant increase in landings; but from 2000 to 2011 there w

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Gonzalez-Pestana, Adriana, Carlos Kouri J., and Ximena Velez-Zuazo. "Shark fisheries in the Southeast Pacific: A 61-year analysis from Peru." F1000Research 3 (April 12, 2016): 164. http://dx.doi.org/10.12688/f1000research.4412.2.

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Peruvian waters exhibit high conservation value for sharks. This contrasts with a lag in initiatives for their management and a lack of studies about their biology, ecology and fishery. We investigated the dynamics of Peruvian shark fishery and its legal framework identifying information gaps for recommending actions to improve management. Further, we investigated the importance of the Peruvian shark fishery from a regional perspective. From 1950 to 2010, 372,015 tons of sharks were landed in Peru. From 1950 to 1969, we detected a significant increase in landings; but from 2000 to 2011 there w

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8

Braccini, Matias, and Hilario Murua. "Quantifying shark and ray discards in Western Australia’s shark fisheries." Marine and Freshwater Research 73, no. 3 (2021): 283–91. http://dx.doi.org/10.1071/mf21159.

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Commercial fisheries can discard a considerable volume of sharks and rays, which, as a group, are of high conservation concern. In Western Australia (WA), commercial shark fishing commenced in the 1940s; however, catch time series are not available for discarded species. The present study quantified catch (i.e. dead individuals) time series of discarded sharks and rays in WA’s shark fisheries using on-board observer information collected since 1993 and testing assumptions through sensitivity analysis. Overall, 18 shark and ray taxonomic groups were discarded, comprising ~20% of the observed ca

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9

Lapinski, Matthieu, and Ioannis Giovos. "New records of the critically endangered Squatina squatina(Linnaeus, 1758) from Corsica, France." Acta Adriatica 60, no. 2 (2019): 205–10. http://dx.doi.org/10.32582/aa.60.2.10.

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Angel Sharks are among the most threatened families of fish in the world. In the Mediterranean three species are present facing a severe depletion with several local extinction events as a result of over exploitation by fisheries. Hereby, we present 7 additional records of Squatina squatina from Corsica contributing to the new regional action plan for Angel Sharks in the Mediterranean Sea. Most records include juvenile specimens, indicating that the area might be a nursery ground for the species.

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10

Sunyem, P. S., and C. M. Vooren. "On cloacal gestation in angel sharks from southern Brazil." Journal of Fish Biology 50, no. 1 (1997): 86–94. http://dx.doi.org/10.1111/j.1095-8649.1997.tb01341.x.

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11

Reid, D. D., W. D. Robbins, and V. M. Peddemors. "Decadal trends in shark catches and effort from the New South Wales, Australia, Shark Meshing Program 1950 - 2010." Marine and Freshwater Research 62, no. 6 (2011): 676. http://dx.doi.org/10.1071/mf10162.

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The New South Wales (NSW) government has operated a program of netting beaches for the protection of swimmers and surfers against shark attack since 1937 in Sydney, and since 1949 in Newcastle and Wollongong. The scope and directives of the Shark Meshing Program have remained constant since its inception, with operational modifications in net specifications in 1972, changes in spatial deployment in 1972, 1987 and 1992, and the elimination of winter netting since 1989. This markedly increased meshing effort in 1972, and again in 1987. In the present study, we examine the trends in catch and eff

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12

Mollen, Frederik H., Barry W. M. van Bakel, and John W. M. Jagt. "A partial braincase and other skeletal remains of Oligocene angel sharks (Chondrichthyes, Squatiniformes) from northwest Belgium, with comments on squatinoid taxonomy." Contributions to Zoology 85, no. 2 (2016): 147–71. http://dx.doi.org/10.1163/18759866-08502002.

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A detailed redescription of a chondrocranium from the basal Boom Clay Formation (Rupelian, Upper Oligocene) at the SVK clay pit, Sint-Niklaas (province of Oost-Vlaanderen, Belgium), previously assigned to the sawshark Pristiophorus rupeliensis, is presented. The chondrocranium is re-identified as that of an angel shark (Squatinidae), based on comparative anatomy of extant Squatina, inclusive of CT scans of Squatina africana, S. australis, S. dumeril, S. guggenheimand S. squatina, with different geographic distributions and representing all four angel shark clades as defined in a previous molec

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13

Stelbrink, Björn, Thomas von Rintelen, Geremy Cliff, and Jürgen Kriwet. "Molecular systematics and global phylogeography of angel sharks (genus Squatina)." Molecular Phylogenetics and Evolution 54, no. 2 (2010): 395–404. http://dx.doi.org/10.1016/j.ympev.2009.07.029.

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14

Lawson, Julia M., Riley A. Pollom, Cat A. Gordon, et al. "Extinction risk and conservation of critically endangered angel sharks in the Eastern Atlantic and Mediterranean Sea." ICES Journal of Marine Science 77, no. 1 (2019): 12–29. http://dx.doi.org/10.1093/icesjms/fsz222.

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Abstract Understanding the details of local and regional extinctions allows for more efficient allocation of conservation activities and resources. This involves identifying where populations persist, where populations may still be present, and where populations may be locally extinct. Three threatened angel sharks occur in the Eastern Atlantic and Mediterranean Sea: Sawback Angelshark (Squatina aculeata), Smoothback Angelshark (Squatina oculata), and Angelshark (Squatina squatina). Population sizes and geographic ranges of these species have been reduced due to overfishing and habitat loss, p

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15

Cañedo-Apolaya, Rosa M., Clara Ortiz-Alvarez, Eliana Alfaro-Cordova, et al. "Species Delimitation of Southeast Pacific Angel Sharks (Squatina spp.) Reveals Hidden Diversity through DNA Barcoding." Diversity 13, no. 5 (2021): 177. http://dx.doi.org/10.3390/d13050177.

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Angel sharks are distributed worldwide in tropical to subtropical waters. Across the Eastern Pacific Ocean (EPO), two valid species are reported: The Pacific angelshark Squatina californica and the Chilean angelshark Squatina armata; however, there is still uncertainty about their geographic distribution, mainly along the northern Peru coast where the species have been reported to be sympatric. The aim of this study is to describe the genetic differences between the genus Squatina from the EPO, including samples from northern Peru, and using DNA barcoding and three species delimitation models:

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16

Soto, J. M. R. "The marine leech Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), parasitic on the angel shark Squatina spp. and sandtiger shark Carcharias taurus Rafinesque, 1810 (Chondrichthyes: Squatinidae, Carchariidae) in Southern Brazilian waters." Brazilian Journal of Biology 63, no. 4 (2003): 691–94. http://dx.doi.org/10.1590/s1519-69842003000400016.

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The presence of the marine leech, Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), is reported on the southern coast of Brazil, based on seven lots with 47 specimens, between 71 and 182 mm in total length, collected on the dorsal region of angel sharks, Squatina argentina (Marini, 1930); S. guggenheim Marini, 1936; S. punctata Marini, 1936 (Chondrichthyes, Squatinidae); and on the head of a sandtiger shark, Carcharias taurus Rafinesque, 1810 (Chondrichthyes, Carchariidae). This is the first record of S. loricata in the western Atlantic and of its parasitic association with S.

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17

Klug, Stefanie, and Jürgen Kriwet. "Node age estimations and the origin of angel sharks, Squatiniformes (Neoselachii, Squalomorphii)." Journal of Systematic Palaeontology 11, no. 1 (2013): 91–110. http://dx.doi.org/10.1080/14772019.2012.674066.

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18

Cailliet, GM, HF Mollet, GG Pittenger, D. Bedford, and LJ Natanson. "Growth and demography of the Pacific Angle Shark (Squatina californica), based upon tag returns off California." Marine and Freshwater Research 43, no. 5 (1992): 1313. http://dx.doi.org/10.1071/mf9921313.

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Knowledge of the age, growth and demography of an organism can be quite useful for managing its fishery. However, for many elasmobranch species, no valid estimates of age, growth and therefore age-specific mortality and natality rates are available. Thus, even though the distribution, abundance, habits and reproduction of a population may be known, no reliable estimates of population growth are possible. As a result, detailed demographic analysis has been completed for only a few shark species (e.g. the California leopard shark, Triakis semlfasciata). All age-determination techniques attempted

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19

Reid, DD, and M. Krogh. "Assessment of catches from Protective Shark meshing off NSW beaches between 1950 and 1990." Marine and Freshwater Research 43, no. 1 (1992): 283. http://dx.doi.org/10.1071/mf9920283.

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Mesh netting of beaches along the more populous sections of the NSW coast for the protection of swimmers and surfers against shark attack has been carried out since 1937 in Sydney and since 1949 in Newcastle and Wollongong. Data for the catches of sharks by taxonomic groups are presented for the period from 1950 to 1990. Although there were large year-to-year fluctuations, neither catch nor catch per unit effort showed any discernible trend for the period up to 1972. In 1973, the catches of all taxonomic groups increased substantially following changes to the specifications of nets and their d

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20

Shirai, Shigeru. "Phylogenetic Relationships of the Angel Sharks, with Comments on Elasmobranch Phylogeny (Chondrichthyes, Squatinidae)." Copeia 1992, no. 2 (1992): 505. http://dx.doi.org/10.2307/1446211.

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21

Raoult, V., V. Peddemors, and J. E. Williamson. "Biology of angel sharks (Squatina sp.) and sawsharks (Pristiophorus sp.) caught in south-eastern Australian trawl fisheries and the New South Wales shark-meshing (bather-protection) program." Marine and Freshwater Research 68, no. 2 (2017): 207. http://dx.doi.org/10.1071/mf15369.

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Two species of angel shark (Squatina australis, S. albipunctata) and two species of sawshark (Pristiophorus nudipinnis, P. cirratus) are frequently caught in south-eastern Australia. Little is known of the biology of these elasmobranchs, despite being caught as secondary target species in large numbers. The present study collected morphometric and reproductive data from sharks caught in shark-control nets, commercial fishing trawlers and research trawlers in south-eastern Australia. All four species had female-biased sexual size dimorphism, but growth curves between sexes did not differ. Male

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22

Driggers III, William B., Matthew D. Campbell, David S. Hanisko, et al. "Distribution of angel sharks (Squatinidae) in United States waters of the western North Atlantic Ocean." Fishery Bulletin 116, no. 3-4 (2018): 337–47. http://dx.doi.org/10.7755/fb.116.3-4.11.

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23

Chiaramonte, Gustavo E. "Shark fisheries in Argentina." Marine and Freshwater Research 49, no. 7 (1998): 601. http://dx.doi.org/10.1071/mf97136.

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In the Argentine Sea there are about 35 species of sharks. Three species are subjected to directed fishing: the smoothhound Mustelus schmitti, the school shark Galeorhinus galeus and the copper shark Carcharhinus brachyurus. Other species of elasmobranchs with commercial importance are the angel shark Squatina spp. and several species of skates and rays. The rise in chondrichthyan declared landings registered from 1988 to 1996 is due to the increase in landings of smoothhound and rays. The most important directed shark fishery in the South-West Atlantic is the Necochea gill-net fishery for sch

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Bridge, Natalie F., Duncan Mackay, and Gina Newton. "Biology of the ornate angel shark (Squatina tergocellata) from the Great Australian Bight." Marine and Freshwater Research 49, no. 7 (1998): 679. http://dx.doi.org/10.1071/mf97075.

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Ornate angel sharks were sampled from commercial catches from the Great Australian Bight trawl fishery during the period from February 1992 to February 1993. Size structure, reproduction and diet were studied. Both sexes exhibited similar length–weight relationships. Morphological data indicate that the most accurate conversion to total length (TL) would be obtained from the distance between the granular ocelli on the trunk near the pectoral fins. Males reached sexual maturity at a TL of 810–910 mm, females at 1150–1250 mm. The male:female ratio was 1:3 for the post partum population and 1:1 f

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Escobar-Sánchez, O., J. Ruelas-Inzunza, X. G. Moreno-Sánchez, A. K. Romo-Piñera, and M. G. Frías-Espericueta. "Mercury Concentrations in Pacific Angel Sharks (Squatina californica) and Prey Fishes from Southern Gulf of California, Mexico." Bulletin of Environmental Contamination and Toxicology 96, no. 1 (2015): 15–19. http://dx.doi.org/10.1007/s00128-015-1708-0.

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Shelmerdine, RL, and G. Cliff. "Sharks caught in the protective gill nets off KwaZulu-Natal, South Africa. 12. The African angel sharkSquatina africana(Regan)." African Journal of Marine Science 28, no. 3-4 (2006): 581–88. http://dx.doi.org/10.2989/18142320609504208.

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27

Vaz, Diego F. B., and Marcelo R. de Carvalho. "New Species ofSquatina(Squatiniformes: Squatinidae) from Brazil, with Comments on the Taxonomy of Angel Sharks from the Central and Northwestern Atlantic." Copeia 106, no. 1 (2018): 144–60. http://dx.doi.org/10.1643/ci-17-606.

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28

WALSH, JONATHAN H., and DAVID A. EBERT. "A review of the systematics of western North Pacific angel sharks, genus Squatina, with redescriptions of Squatina formosa, S. japonica, and S. nebulosa (Chondrichthyes: Squatiniformes, Squatinidae)." Zootaxa 1551, no. 1 (2007): 31–47. http://dx.doi.org/10.11646/zootaxa.1551.1.2.

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Squatinids are quite distinct from other shark-like fishes, but individual species are difficult to differentiate. Four of the 16 known, valid squatinid species occur in the western North Pacific (WNP). Differences among the WNP species complex have traditionally relied upon the nasal barbel shape, interorbital and interspiracle distances, ocellus patterns, number of dermal folds about the mouth, and the presence of midback thorns. Unfortunately, many of these characters are difficult to distinguish, hindering identification of individuals. Using WNP squatinid specimens and photographs, both f

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Capape, C., J. P. Quignard, and J. Mellinger. "Reproduction and development of two angel sharks, Squatina squatina and S. oculata (Pisces: Squatinidae), off Tunisian coasts: semi-delayed vitellogenesis, lack of egg capsules, and lecithotrophy." Journal of Fish Biology 37, no. 3 (1990): 347–56. http://dx.doi.org/10.1111/j.1095-8649.1990.tb05865.x.

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Giovos, Ioannis, Vasilis‐Orestis Stoilas, Sara AA Al‐Mabruk, et al. "Integrating local ecological knowledge, citizen science and long‐term historical data for endangered species conservation: Additional records of angel sharks (Chondrichthyes: Squatinidae) in the Mediterranean Sea." Aquatic Conservation: Marine and Freshwater Ecosystems 29, no. 6 (2019): 881–90. http://dx.doi.org/10.1002/aqc.3089.

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Wilga, C. D., and G. V. Lauder. "Function of the heterocercal tail in sharks: quantitative wake dynamics during steady horizontal swimming and vertical maneuvering." Journal of Experimental Biology 205, no. 16 (2002): 2365–74. http://dx.doi.org/10.1242/jeb.205.16.2365.

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SUMMARYThe function of the heterocercal tail in sharks has long been debated in the literature. Previous kinematic data have supported the classical theory which proposes that the beating of the heterocercal caudal fin during steady horizontal locomotion pushes posteroventrally on the water, generating a reactive force directed anterodorsally and causing rotation around the center of mass. An alternative model suggests that the heterocercal shark tail functions to direct reaction forces through the center of mass. In this paper,we quantify the function of the tail in two species of shark and c

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Wilga, C. D., and G. V. Lauder. "Three-dimensional kinematics and wake structure of the pectoral fins during locomotion in leopard sharks Triakis semifasciata." Journal of Experimental Biology 203, no. 15 (2000): 2261–78. http://dx.doi.org/10.1242/jeb.203.15.2261.

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The classical theory of locomotion in sharks proposes that shark pectoral fins are oriented to generate lift forces that balance the moment produced by the oscillating heterocercal tail. Accordingly, previous studies of shark locomotion have used fixed-wing aircraft as a model assuming that sharks have similar stability and control mechanisms. However, unlike airplanes, sharks are propelled by undulations of the body and tail and have considerable control of pectoral fin motion. In this paper, we use a new approach to examine the function of the pectoral fins of leopard sharks, Triakis semifas

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JOHNSON, WILLIAM C., and JEFFREY E. SOHL. "INITIAL PUBLIC OFFERINGS AND PRE-IPO SHAREHOLDERS: ANGELS VERSUS VENTURE CAPITALISTS." Journal of Developmental Entrepreneurship 17, no. 04 (2012): 1250022. http://dx.doi.org/10.1142/s1084946712500227.

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At the time of an initial public offering, shares in a firm are typically held by venture capitalists, insiders, corporate investors and angel investors. We examine the role of angel investors in the IPO process. We find that angel investors provide equity capital in industries venture capitalists are less likely to serve and that shareholders in angel backed IPO firms are more likely to sell their shares at the time of the offering. Where venture capital backed IPO firms have higher underpricing, angel backed IPO firms do not, implying that angels may be the preferred investors for early-stag

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Peach, M. B. "Rheotaxis by epaulette sharks, Hemiscyllium ocellatum (Chondrichthyes : Hemiscylliidae), on a coral reef flat." Australian Journal of Zoology 50, no. 4 (2002): 407. http://dx.doi.org/10.1071/zo01081.

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Rheotaxis (orientation to water currents) is commonly observed in fishes. Facing upstream is thought to be an element of shark behaviour during prey search and station-holding, but quantitative studies of rheotaxis by sharks in the wild are lacking. In this study, rheotaxis by the epaulette shark, Hemiscyllium ocellatum, was investigated on a coral reef flat at Heron Island, Great Barrier Reef, Australia. The orientation of 78 individuals in open areas (on sand or on top of coral heads, directly exposed to the prevailing current) was analysed with respect to current direction and velocity. H.

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Hohl, Lennard, Peter M. Bican, Carsten C. Guderian, and Frederik J. Riar. "Gender Diversity Effects in Investment Decisions." Journal of Entrepreneurship 30, no. 1 (2021): 134–52. http://dx.doi.org/10.1177/0971355720974821.

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This study examines the gender gap in investment decisions in a prominent setting: the American TV show Shark Tank. Our study is based on a sample of 895 pitches from 10 seasons comprising 222 episodes from 2009 to 2019. Contradicting prior research, our findings suggest that female entrepreneurs are not discriminated against in pitch success rates, independent of their respective industrial settings. We find that the valuations from the entrepreneurs themselves (males overvalued their ventures by 57.19%) and final deal valuations (male deals were overvalued by 50.50%) are significantly lower

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Baremore, I. E. "Reproductive aspects of the Atlantic angel shark Squatina dumeril." Journal of Fish Biology 76, no. 7 (2010): 1682–95. http://dx.doi.org/10.1111/j.1095-8649.2010.02608.x.

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Gajić, Andrej A. "New Hope for the Critically Endangered Common Angel Shark Squatina squatina in the Adriatic Sea." Croatian Journal of Fisheries 80, no. 1 (2022): 1–6. http://dx.doi.org/10.2478/cjf-2022-0001.

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Abstract Historically, two angel shark species, common angel shark Squatina squatina and smoothback angel shark Squatina oculata, were common in the upper continental shelf of the eastern Adriatic Sea. Although both species are considered critically endangered in the Adriatic and the rest of the world, there are almost no data on the current status of populations, threat assessment and species-specific in-situ conservation. Common angel shark is still present in highly fragmented areas of the eastern Adriatic with extremely rare but consistent records, while smoothback angel shark is mostly co

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Wang, Kaihong, Yin Mingyang, and Zuo Jiani. "The Two-Stage Model of Entrepreneurs Financing Based on the Entry/Exit Decision." Discrete Dynamics in Nature and Society 2018 (June 20, 2018): 1–13. http://dx.doi.org/10.1155/2018/7902985.

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Normally entrepreneur would raise fund from angel investors during the initial round. If the venture program was by then successful, the entrepreneur would then continue the fund-raising process from venture capitalist. By adopting the convertible preferred stock, we managed to construct the two-stage angel investment decision process. This research reveals the following: (1) The probability of the first stage’s success has negative relationships with levels of priority dividend in both first and second stages, as well as with the venture capitalist’s proportion of shares. (2) The probability

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King, Jackie R., and A. Maria Surry. "First Record of Pacific Angel Shark (Squatina californica) in Canadian Pacific Waters." Canadian Field-Naturalist 130, no. 4 (2017): 302. http://dx.doi.org/10.22621/cfn.v130i4.1922.

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We report the first verified record of a Pacific Angel Shark (Squatina californica) from British Columbia, Canada. A Pacific Angel Shark, 1.1–1.2 m in total length, was observed on 30 April 2016 in approximately 12 m of water, 30 m from the tip of Clover Point, Vancouver Island, British Columbia (48°24'10"N, 123°20'56"W).

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Andrzejaczek, Samantha, Adrian C. Gleiss, Karissa O. Lear, Charitha Pattiaratchi, Taylor K. Chapple, and Mark G. Meekan. "Depth-dependent dive kinematics suggest cost-efficient foraging strategies by tiger sharks." Royal Society Open Science 7, no. 8 (2020): 200789. http://dx.doi.org/10.1098/rsos.200789.

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Tiger sharks, Galeocerdo cuvier , are a keystone, top-order predator that are assumed to engage in cost-efficient movement and foraging patterns. To investigate the extent to which oscillatory diving by tiger sharks conform to these patterns, we used a biologging approach to model their cost of transport. High-resolution biologging tags with tri-axial sensors were deployed on 21 tiger sharks at Ningaloo Reef for durations of 5–48 h. Using overall dynamic body acceleration as a proxy for energy expenditure, we modelled the cost of transport of oscillatory movements of varying geometries in both

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Romero-Caicedo, A. F., F. Galván-Magaña, A. Hernández-Herrera, and M. Carrera-Fernández. "Reproductive parameters of the Pacific angel shark Squatina californica (Selachii: Squatinidae)." Journal of Fish Biology 88, no. 4 (2016): 1430–40. http://dx.doi.org/10.1111/jfb.12920.

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Osaer, Filip, and Krupskaya Narváez. "The angel shark Squatina squatina prey of the isopod Aegapheles deshaysiana." Marine Biodiversity 46, no. 1 (2015): 29–30. http://dx.doi.org/10.1007/s12526-015-0358-0.

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Immonen, Aino-Maria, and Harri Tuomas Luomala. "Different shades of displeasure." British Food Journal 119, no. 12 (2017): 2740–52. http://dx.doi.org/10.1108/bfj-08-2016-0374.

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Purpose The purpose of this paper is to demonstrate the differential consequences of fear and anger for consumers’ responses to genetically modified (GM) foods, and to identify substantive concerns that differentiate consumers’ negative emotional responses into fear and anger in the GM food context. Design/methodology/approach With survey data obtained from university students (n=267), structural equation modeling is used to assess relationships between four types of consumer concerns about the genetic modification of food, fear and anger, and two types of consumer responses to GM food product

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Narváez, Krupskaya, and Filip Osaer. "The marine leech Stibarobdella macrothela parasitic on the angel shark Squatina squatina." Marine Biodiversity 47, no. 1 (2016): 153–54. http://dx.doi.org/10.1007/s12526-016-0444-y.

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Baremore, Ivy Elizabeth, Kate Irene Andrews, and Loraine Frances Hale. "Difficulties associated with modeling growth in the Atlantic angel shark (Squatina dumeril)." Fisheries Research 99, no. 3 (2009): 203–9. http://dx.doi.org/10.1016/j.fishres.2009.06.006.

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Abdulkhaev, Kh G., and M. M. Khalilov. "Determining the Parameters of Leveler-Ripper Shanks." Agricultural Machinery and Technologies 13, no. 3 (2019): 44–47. http://dx.doi.org/10.22314/2073-7599-201913-3-44-47.

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In order to ensure high-quality sowing and smooth seed germination, the main task in pre-sowing soil preparation is fi eld surface leveling, soil compaction to the required degree and the formation of a mildly mulching layer on the soil surface. For combined implementation of these operations, a leveler-ripper has been designed. (Research Purpose) Determination of cuttingedge angles, the inter-leg length and width of the shanks of a leveler-ripper (Materials and Methods) Theoretical studies were carried out using the methods of higher mathematics and theoretical mechanics. The authors obtained

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Cabrera, Daniel Alfredo, Alberto Luis Cione, and Mario Alberto Cozzuol. "Tridimensional Angel Shark Jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina." Ameghiniana 49, no. 1 (2012): 126–31. http://dx.doi.org/10.5710/amgh.v49i1(469).

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Escobar-Sánchez, O., X. G. Moreno-Sánchez, C. A. Aguilar-Cruz, and L. A. Abitia-Cárdenas. "First case of synophthalmia and albinism in the Pacific angel shark Squatina californica." Journal of Fish Biology 85, no. 2 (2014): 494–501. http://dx.doi.org/10.1111/jfb.12412.

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Лустенков, Михаил, Mikhail Lustenkov, Екатерина Фитцова, and Ekaterina Fittsova. "Mechanism with variable angle between axes of shafts." Bulletin of Bryansk state technical university 2014, no. 1 (2014): 46–50. http://dx.doi.org/10.12737/23373.

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The design and the principle of the mechanism work, including a reducer and universal joints, are considered in this paper. The angle between the axes of the shafts can be changed during oper-ation. The mechanism works in a reducer mode when its housing is stopped. The kinematic analysis of the mechanism and the research of dependence of the transmission ratio on the angles between the axes of the shafts are given in the article.

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Lima Viliod, Marcela Coffacci, Bianca de Sousa Rangel, Lara Caetano Rocha, et al. "Ecomorphological, space, and mineral relations of dermal denticles in angular angel shark ( Squatina guggenheim )." Microscopy Research and Technique 84, no. 9 (2021): 2017–23. http://dx.doi.org/10.1002/jemt.23757.

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