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Academic literature on the topic 'Blue whales'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Blue whales"

1

Acebes, Jo Marie Vera, Joshua Neal Silberg, Timothy John Gardner, et al. "First confirmed sightings of Blue Whales Balaenoptera musculus Linnaeus, 1758 (Mammalia: Cetartiodactyla: Balaenopteridae) in the Philippines since the 19th century." Journal of Threatened Taxa 13, no. 3 (2021): 17875–88. http://dx.doi.org/10.11609/jott.6483.13.3.17875-17888.

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For over two centuries there were no records of Blue Whales Balaenoptera musculus in the Philippines. Whalers recorded Blue Whales in the Philippines in the 19th century, and the next confirmed sighting in the country was of a mother and calf in 2004. Since then 33 subsequent Blue Whale sightings of potentially one individual were recorded between 2004 and 2019, all within the central region of the Philippines around the Bohol Sea. This individual, recognized through photo-identification, was sighted on at least 13 occasions during eight different years: 2010, 2011, 2012, 2015, 2016, 2017, 2018, and 2019. The geographic location and timing of the sightings (January to July) suggest that Blue Whales in the Philippines may extend the outer range edge of the Indo-Australian population that migrate between western Australia, Indonesia, and East Timor. Blue Whale sightings in the Bohol Sea coincide with times of high ocean productivity, although further investigation is needed to determine if they are actually feeding in this region. Acoustic studies and photo-identification matching with other Blue Whale catalogues will clarify the stock identity of Blue Whales in the Philippines and their relation to the rest of the Blue Whale population, with implications for the conservation of this endangered species across multiple jurisdictions.

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Torres, Leigh G., Dawn R. Barlow, Todd E. Chandler, and Jonathan D. Burnett. "Insight into the kinematics of blue whale surface foraging through drone observations and prey data." PeerJ 8 (April 22, 2020): e8906. http://dx.doi.org/10.7717/peerj.8906.

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To understand how predators optimize foraging strategies, extensive knowledge of predator behavior and prey distribution is needed. Blue whales employ an energetically demanding lunge feeding method that requires the whales to selectively feed where energetic gain exceeds energetic loss, while also balancing oxygen consumption, breath holding capacity, and surface recuperation time. Hence, blue whale foraging behavior is primarily driven by krill patch density and depth, but many studies have not fully considered surface feeding as a significant foraging strategy in energetic models. We collected predator and prey data on a blue whale (Balaenoptera musculus brevicauda) foraging ground in New Zealand in February 2017 to assess the distributional and behavioral response of blue whales to the distribution and density of krill prey aggregations. Krill density across the study region was greater toward the surface (upper 20 m), and blue whales were encountered where prey was relatively shallow and more dense. This relationship was particularly evident where foraging and surface lunge feeding were observed. Furthermore, New Zealand blue whales also had relatively short dive times (2.83 ± 0.27 SE min) as compared to other blue whale populations, which became even shorter at foraging sightings and where surface lunge feeding was observed. Using an unmanned aerial system (UAS; drone) we also captured unique video of a New Zealand blue whale’s surface feeding behavior on well-illuminated krill patches. Video analysis illustrates the whale’s potential use of vision to target prey, make foraging decisions, and orient body mechanics relative to prey patch characteristics. Kinematic analysis of a surface lunge feeding event revealed biomechanical coordination through speed, acceleration, head inclination, roll, and distance from krill patch to maximize prey engulfment. We compared these lunge kinematics to data previously reported from tagged blue whale lunges at depth to demonstrate strong similarities, and provide rare measurements of gape size, and krill response distance and time. These findings elucidate the predator-prey relationship between blue whales and krill, and provide support for the hypothesis that surface feeding by New Zealand blue whales is an important component to their foraging ecology used to optimize their energetic efficiency. Understanding how blue whales make foraging decisions presents logistical challenges, which may cause incomplete sampling and biased ecological knowledge if portions of their foraging behavior are undocumented. We conclude that surface foraging could be an important strategy for blue whales, and integration of UAS with tag-based studies may expand our understanding of their foraging ecology by examining surface feeding events in conjunction with behaviors at depth.

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Calderan, SV, A. Black, TA Branch, et al. "South Georgia blue whales five decades after the end of whaling." Endangered Species Research 43 (November 19, 2020): 359–73. http://dx.doi.org/10.3354/esr01077.

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Blue whales Balaenoptera musculus at South Georgia were heavily exploited during 20th century industrial whaling, to the point of local near-extirpation. Although legal whaling for blue whales ceased in the 1960s, and there were indications of blue whale recovery across the wider Southern Ocean area, blue whales were seldom seen in South Georgia waters in subsequent years. We collated 30 yr of data comprising opportunistic sightings, systematic visual and acoustic surveys and photo-identification to assess the current distribution of blue whales in the waters surrounding South Georgia. Over 34000 km of systematic survey data between 1998 and 2018 resulted in only a single blue whale sighting, although opportunistic sightings were reported over that time period. However, since 2018 there have been increases in both sightings of blue whales and detections of their vocalisations. A survey in 2020 comprising visual line transect surveys and directional frequency analysis and recording (DIFAR) sonobuoy deployments resulted in 58 blue whale sightings from 2430 km of visual effort, including the photo-identification of 23 individual blue whales. Blue whale vocalisations were detected on all 31 sonobuoys deployed (114 h). In total, 41 blue whales were photo-identified from South Georgia between 2011 and 2020, none of which matched the 517 whales in the current Antarctic catalogue. These recent data suggest that blue whales have started to return to South Georgia waters, but continued visual and acoustic surveys are required to monitor any future changes in their distribution and abundance.

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Shabangu, FW, RK Andrew, D. Yemane, and KP Findlay. "Acoustic seasonality, behaviour and detection ranges of Antarctic blue and fin whales under different sea ice conditions off Antarctica." Endangered Species Research 43 (September 3, 2020): 21–37. http://dx.doi.org/10.3354/esr01050.

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Descriptions of seasonal occurrence and behaviour of Antarctic blue and fin whales in the Southern Ocean are of pivotal importance for the effective conservation and management of these endangered species. We used an autonomous acoustic recorder to collect bioacoustic data from January through September 2014 to describe the seasonal occurrence, behaviour and detection ranges of Antarctic blue and fin whale calls off the Maud Rise, Antarctica. From 2479 h of recordings, we detected D- and Z-calls plus the 27 Hz chorus of blue whales, the 20 and 99 Hz pulses of fin whales and the 18-28 Hz chorus of blue and fin whales. Blue whale calls were detected throughout the hydrophone deployment period with a peak occurrence in February, indicating continuous presence of whales in a broad Southern Ocean area (given the modelled detection ranges). Fin whale calls were detected from January through July when sea ice was present on the latter dates. No temporal segregation in peaks of diel calling rates of blue and fin whales was observed in autumn, but a clear temporal segregation was apparent in summer. Acoustic propagation models suggest that blue and fin whale calls can be heard as far as 1700 km from the hydrophone position in spring. Random forest models ranked month of the year as the most important predictor of call occurrence and call rates (i.e. behaviour) for these whales. Our work highlights areas around the Maud Rise as important habitats for blue and fin whales in the Southern Ocean.

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Goldbogen, Jeremy A., John Calambokidis, Ari S. Friedlaender, et al. "Underwater acrobatics by the world's largest predator: 360° rolling manoeuvres by lunge-feeding blue whales." Biology Letters 9, no. 1 (2013): 20120986. http://dx.doi.org/10.1098/rsbl.2012.0986.

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The extreme body size of blue whales requires a high energy intake and therefore demands efficient foraging strategies. As an obligate lunge feeder on aggregations of small zooplankton, blue whales engulf a large volume of prey-laden water in a single, rapid gulp. The efficiency of this feeding mechanism is strongly dependent on the amount of prey that can be captured during each lunge, yet food resources tend to be patchily distributed in both space and time. Here, we measured the three-dimensional kinematics and foraging behaviour of blue whales feeding on krill, using suction-cup attached multi-sensor tags. Our analyses revealed 360° rolling lunge-feeding manoeuvres that reorient the body and position the lower jaws so that a krill patch can be engulfed with the whale's body inverted. We also recorded these rolling behaviours when whales were in a searching mode in between lunges, suggesting that this behaviour also enables the whale to visually process the prey field and maximize foraging efficiency by surveying for the densest prey aggregations. These results reveal the complex manoeuvrability that is required for large rorqual whales to exploit prey patches and highlight the need to fully understand the three-dimensional interactions between predator and prey in the natural environment.

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Leslie, MS, CM Perkins-Taylor, JW Durban, et al. "Body size data collected non-invasively from drone images indicate a morphologically distinct Chilean blue whale (Balaenoptera musculus) taxon." Endangered Species Research 43 (November 5, 2020): 291–304. http://dx.doi.org/10.3354/esr01066.

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The blue whale Balaenoptera musculus (Linnaeus, 1758) was the target of intense commercial whaling in the 20th century, and current populations remain drastically below pre-whaling abundances. Reducing uncertainty in subspecific taxonomy would enable targeted conservation strategies for the recovery of unique intraspecific diversity. Currently, there are 2 named blue whale subspecies in the temperate to polar Southern Hemisphere: the Antarctic blue whale B. m. intermedia and the pygmy blue whale B. m. brevicauda. These subspecies have distinct morphologies, genetics, and acoustics. In 2019, the Society for Marine Mammalogy’s Committee on Taxonomy agreed that evidence supports a third (and presently unnamed) subspecies of Southern Hemisphere blue whale subspecies, the Chilean blue whale. Whaling data indicate that the Chilean blue whale is intermediate in body length between pygmy and Antarctic blue whales. We collected body size data from blue whales in the Gulfo Corcovado, Chile, during the austral summers of 2015 and 2017 using aerial photogrammetry from a remotely controlled drone to test the hypothesis that the Chilean blue whale is morphologically distinct from other Southern Hemisphere blue whale subspecies. We found the Chilean whale to be morphologically intermediate in both overall body length and relative tail length, thereby joining other diverse data in supporting the Chilean blue whale as a unique subspecific taxon. Additional photogrammetry studies of Antarctic, pygmy, and Chilean blue whales will help examine unique morphological variation within this species of conservation concern. To our knowledge, this is the first non-invasive small drone study to test a hypothesis for systematic biology.

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Acevedo-Gutiérrez, A., D. A. Croll, and B. R. Tershy. "High feeding costs limit dive time in the largest whales." Journal of Experimental Biology 205, no. 12 (2002): 1747–53. http://dx.doi.org/10.1242/jeb.205.12.1747.

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SUMMARY Large body size usually extends dive duration in air-breathing vertebrates. However, the two largest predators on earth, the blue whale (Balaenoptera musculus) and the fin whale (B. physalus), perform short dives for their size. Here, we test the hypothesis that the foraging behavior of these two species (lunge-feeding) is energetically expensive and limits their dive duration. We estimated the cost of lunge-feeding in both species using an approach that combined attaching time/depth recorders to seven blue whales and eight fin whales and comparing the collected dive information with predictions made by optimality models of dive behavior. We show that the rate at which whales recovered from a foraging dive was twice that of a non-foraging dive and that the cost of foraging relative to the cost of travel to and from the prey patch was 3.15 in blue whales (95 % CI 2.58-3.72) and 3.60 in fin whales(95 % CI 2.35-4.85). Whales foraged in small areas (&lt;1 km2) and foraging bouts lasted more than one dive, indicating that prey did not disperse and thus that prey dispersal could not account for the limited dive durations of the whales. Despite the enormous size of blue whales and fin whales, the high energetic costs of lunge-feeding confine them to short durations of submergence and to areas with dense prey aggregations. As a corollary, because of their limited foraging time under water, these whales may be particularly vulnerable to perturbations in prey abundance.

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Calambokidis, John, Greg S. Schorr, Gretchen H. Steiger, et al. "Insights into the Underwater Diving, Feeding, and Calling Behavior of Blue Whales from a Suction-Cup-Attached Video-Imaging Tag (Crittercam)." Marine Technology Society Journal 41, no. 4 (2007): 19–29. http://dx.doi.org/10.4031/002533207787441980.

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We examined the underwater behavior of blue whales using a suction-cup-attached video-imaging instrument (Crittercam). We made 13 successful deployments (defined as tag duration of >15 min and successful recovery of the tag and data) totaling 19 hours of Crittercams on blue whales off California and in the Sea of Cortez from spring through fall (26 February to 30 September) between 1999 and 2003. Whale diving depth and behavior varied widely by region and period, although deployments on different individuals in the same area and period often showed very similar feeding behavior. One deployment extending into night showed a diurnal shift in diving behavior with progressively shallower feeding dives as it became dark, with shift to shallow, apparently non-feeding dives during the night. Data and video from tags demonstrated that the characteristic series of vertical movements blue whales make at depth are lunges into dense aggregations of krill. These krill were visible streaming by the camera immediately before these lunges and more clearly when the whales' forward motion stopped as a result of the lunge. The progression of events leading up to and during the lunge could be documented from the head movement of whales and occasional views of the expanding throat pleats or lower jaw, and by changes in flow noise past the tag, indicating a rapid deceleration. One set of deployments in the Southern California Bight revealed consistent feeding at depths of 250-300 m, deeper than has been previously reported for blue whales. A loud blue whale vocalization was heard on only one deployment on a male blue whale in an interacting trio of animals.

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Schoenherr, Jill R. "Blue whales feeding on high concentrations of euphausiids around Monterey Submarine Canyon." Canadian Journal of Zoology 69, no. 3 (1991): 583–94. http://dx.doi.org/10.1139/z91-088.

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An unusually high concentration of blue whales, Balaenoptera musculus, fed on euphausiids that were concentrated in deep scattering layers and daytime surface swarms in Monterey Bay, California, during the fall of 1986. Blue whales were closely associated with deep scattering layers that were elongated along the southeast edge of the Monterey Submarine Canyon throughout most of November 1986. These scattering layers contained euphausiids, primarily Thysanoessa spinifera, which accounted for 45.4% of the total biomass of zooplankton tows taken through deep scattering layers. Tows taken above or outside the layers consisted of only 4.0% euphausiids. The greatest concentrations of blue whales were observed in areas of thick scattering layers that contained high krill biomass. In addition, surface-lunging blue whales fed on daytime surface swarms of Thysanoessa spinifera near the head of Monterey Submarine Canyon on 11 and 12 November 1986. Surface tows taken in whale feeding areas were dominated by T. spinifera, which accounted for 64.4% of the total zooplankton biomass, while surface tows taken outside whale areas consisted of only 0.3% euphausiids. Euphausiid densities in surface swarms were slightly higher and more variable than in deep layers. Thysanoessa spinifera size frequency distributions showed that surface swarms may be similar to the deep layer in some areas, but they may contain larger, sexually mature individuals in other areas. Blue whale fecal samples confirmed that the whales were feeding on euphausiids. The disappearance of the blue whales from Monterey Bay was accompanied by a decline in krill biomass along the southeast edge of the submarine canyon. This coincided with the cessation of a prolonged upwelling period that persisted in Monterey Bay throughout November 1986.

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Silva, Mónica A., Asunción Borrell, Rui Prieto, et al. "Stable isotopes reveal winter feeding in different habitats in blue, fin and sei whales migrating through the Azores." Royal Society Open Science 6, no. 8 (2019): 181800. http://dx.doi.org/10.1098/rsos.181800.

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Knowing the migratory movements and behaviour of baleen whales is fundamental to understanding their ecology. We compared δ 15 N and δ 13 C values in the skin of blue ( Balaenoptera musculus ), fin ( Balaenoptera physalus ) and sei ( Balaenoptera borealis ) whales sighted in the Azores in spring with the values of potential prey from different regions within the North Atlantic using Bayesian mixing models to investigate their trophic ecology and migration patterns. Fin whale δ 15 N values were higher than those recorded in blue and sei whales, reflecting feeding at higher trophic levels. Whales' skin δ 15 N and δ 13 C values did not reflect prey from high-latitude summer foraging grounds; instead mixing models identified tropical or subtropical regions as the most likely feeding areas for all species during winter and spring. Yet, differences in δ 13 C values among whale species suggest use of different regions within this range. Blue and sei whales primarily used resources from the Northwest African upwelling and pelagic tropical/subtropical regions, while fin whales fed off Iberia. However, determining feeding habitats from stable isotope values remains difficult. In conclusion, winter feeding appears common among North Atlantic blue, fin and sei whales, and may play a crucial role in determining their winter distribution. A better understanding of winter feeding behaviour is therefore fundamental for the effective conservation of these species.

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Dissertations / Theses on the topic "Blue whales"

1

Conway, Carole Anne. "Global population structure of blue whales, Balaenoptera musculus ssp., based on nuclear genetic variation /." Restricted to UC campuses, 2005. http://bibpurl.oclc.org/web/21163.

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Oleson, Erin Marie. "Calling behavior of blue and fin whales off California /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2005. http://wwwlib.umi.com/cr/ucsd/fullcit?p3185928.

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Di, Iorio Lucia. "Vocal communication in blue whales (Balaenoptera musculus) and noise interference /." [S.l.] : [s.n.], 2009. http://opac.nebis.ch/cgi-bin/showAbstract.pl?sys=000296286.

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Hager, Carl Allen. "Modeling the performance of the PT Sur hydrophone array in localizing blue whales." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341537.

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Thesis (M.S. in Physical Oceanography) Naval Postgraduate School, September 1997.<br>"September 1997." Thesis advisor(s): Ching-Sang Chiu, Curtis Collins. Includes bibliographical references (p. 35-38). Also available online.

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Shabangu, Fannie Welcome. "Acoustic assessment of the seasonal occurrence and behaviour of Antarctic blue whales Balaenoptera musculus intermedia in the southeastern Atlantic and Southern Oceans." Thesis, University of Pretoria, 2018. http://hdl.handle.net/2263/63964.

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With catches of over 360,000 individuals, Antarctic blue whales Balaenoptera musculus intermedia were harvested to near extinction by commercial whaling in the past century. Antarctic blue whales are an important ecological component of marine ecosystems as they ensure the circulation of nutrients in the pelagic environment making such nutrients accessible for primary production. However, their recoveries; distributions; migrations; large-scale response to environmental variabilities are poorly known. This thesis explored the distribution, seasonal occurrence, behaviour and response of Antarctic blue whales to environmental conditions in the high and low latitudes. I used Antarctic circumpolar acoustic data collected from sonobuoys deployed in the austral summers of 1997 through 2009 during the International Whaling Commission’s Southern Ocean Whale and Ecosystem Research (IWC SOWER) line-transect surveys. I also used recent acoustic data from three autonomous acoustic recorders (AARs) deployed between 2014 and 2015; two of these AARs were deployed on oceanographic moorings in the low latitudes and one AAR was deployed on a dedicated mooring in the high latitudes. Characteristic Z-call and feeding associated D-call of Antarctic blue whales; and sometimes low frequency downsweeping ~28-15 Hz eastern Antarctic fin whale B. physalus calls, were detected using an automated detection template and visual verification methods. I used random forest model to determine pattern of environmental preferences, spatial occurrence and behaviour of Antarctic blue whales. Distance to southern boundary of the Antarctic Circumpolar Current, latitude, longitude and distance from the nearest Antarctic shores were the main geographic predictors of blue whale call occurrence and behaviour during IWC SOWER cruises. Satellite derived sea surface height (SSH), wind stress, wind direction, water depth, sea surface temperature (SST), chlorophyll-a and wind speed were important environmental predictors of blue whale occurrence and behaviour during IWC SOWER cruises. Antarctic blue whale call occurrence and call rates varied significantly in response to inter-annual variabilities of those environmental predictors during those cruises. Migratory Antarctic blue and fin whales were acoustically detected in South African waters between May and August with fin whales present till November. Diel call rate patterns of both whale species varied between seasons. Wind speed, SSH, SST, chlorophyll-a, time of the day and Ekman upwelling index were important predictors of Antarctic blue and fin whale call occurrence and behaviour off the South African west coast. Off the Maud Rise, Antarctica, call occurrences and rates of Antarctic blue whales peaked in March and were detected throughout the whole year suggesting asynchronous migrations to the low latitudes and part of the population remaining in the Maud Rise during winter. Fin whale calls were only detected in January and March. Wind speed, distance to the sea ice extent, sea surface height, sea surface temperature and time of the day were important predictors of Antarctic blue and fin whale call occurrence and behaviour. Information emerging from this thesis will improve the management and conservation of these highly depleted species. This thesis provides the first acoustic recordings of Antarctic blue and fin whales in the southern Benguela ecosystem; and provides preliminary information on which to concentrate further research effort to investigate abundance, distribution and seasonality of these large baleen whale populations in both high and low latitudes.<br>Thesis (PhD)--University of Pretoria, 2018.<br>National Research Foundation<br>Zoology and Entomology<br>PhD<br>Unrestricted

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Gambini, Chiara. "Seasonality and diel variation in blue whale D calls recorded in the Southern California Bight." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8316/.

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Passive acoustic data have been collected using HARPs (High-frequency Acoustic Recording Packages) and were used to assess (1) the seasonality of blue whale D calls in the Southern California Bight, (2) their interannual abundance during 2007-2012 and (3) their diel variation. This goal has been achieved running the GPL (Generalized Power-Law) automated detector. (1) Blue whale D calls were detected in the Southern California Bight from May through November with a peak in July, even though few detections were from December to April as well. A key predictor for blue whale distribution and movement in the California Current region has been identified with zooplankton aggregations, paying a particular attention to those euphausiid species, such as E. pacifica and T. spinifera, which are blue whale favorite krill. The Southern California Bight experiences seasonal upwelling, resulting in an increase of productivity and prey availability. The summer and early fall have been marked as the most favorable periods. This supports the presence of blue whales in the area at that time, supposing these marine mammals exploit the region as a feeding ground. (2) As to the interannual abundance during 2007-2012, I found a large variability. I observed a great increase of vocalizations in 2007 and 2010, whereas a decrease was shown in the other years, which is well marked in 2009. It is my belief that these fluctuations in abundance of D calls detections through the deployed period are due to the alternation of El Nino and La Nina events, which occurred in those years. (3) The assessment of the daily timing of D calls production shows that D calls are more abundant during the day than during the night with a peak at 12:00 and 13:00. Assuming that D calling is associated with feeding, the daily pattern of D calls may be linked to the prey availability. E. pacifica and T. spinifera are among those species of krill which undertake daily vertical migrations, remaining at depth during the day and slowly coming up towards the surface at night. Because of some anatomical arrangements, these euphausiids are very sensitive to the light. Given that we believe D calls have a social function, I hypothesize that blue whales may recognize the hours at the highest solar incidence as the best moment of the day in terms of prey availability, exploiting this time window to advert their conspecifics.

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Thomisch, Karolin [Verfasser], Wilhelm [Akademischer Betreuer] [Gutachter] Hagen, and Helmut [Gutachter] Hillebrand. "Distribution patterns and migratory behavior of Antarctic blue whales / Karolin Thomisch ; Gutachter: Wilhelm Hagen, Helmut Hillebrand ; Betreuer: Wilhelm Hagen." Bremen : Staats- und Universitätsbibliothek Bremen, 2016. http://d-nb.info/1135716250/34.

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Doniol-Valcroze, Thomas. "Spatial distribution of rorqual whales in the Strait of Jacques Cartier, Gulf of St. Lawrence, Quebec, Canada." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33749.

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The spatial distribution of four species of rorqual whales was studied along the north shore of the Gulf of St. Lawrence during the months of June to October from 1989 to 2000. A research effort of 6511 hours at sea yielded 849 sightings of blue whales (Balaenoptera musculus), 5291 of finback whales (Balaenoptera physalus), 3822 of humpback whales (Megaptera novaeangliae) and 6489 of minke whales (Balaenoptera acutorostrata). Spatial and behavioural data were collected at sea using inflatable boats, and Global Positioning Systems (GPS) were used to obtain accurate positions. These data were plotted and analysed using a Geographic Information System (GIS) to test the hypotheses that patterns of distribution were not random, were associated with bathymetry and reflected specific differences in habitat use. The resulting maps illustrated the clustered distribution of rorqual whales linked to sea-bottom topography, probably associated with areas of local upwelling and increased productivity. Blue and fin whales shared almost the same distribution, humpback whales were found in slightly deeper, offshore waters whereas minke whales were more abundant in shallower waters. Little attention has been given until now to local patterns of distribution in the area and such information can be useful for practical management considerations. The results emphasise the importance of scale in ecological studies of marine mammals and the need for further research using additional oceanographic parameters, in order to better understand habitat selection.

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Širović, Ana. "Blue and fin whale acoustics and ecology off Antarctic Peninsula." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3214542.

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Thesis (Ph. D.)--University of California, San Diego, 2006.<br>Title from first page of PDF file (viewed June 30, 2006). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 121-143).

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Thode, Aaron Michael. "Localization, inversion, and source signal recovery of blue whale sounds using matched field processing /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p3035907.

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Books on the topic "Blue whales"

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Owen, Ruth. Blue whales. Windmill Books, 2014.

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Blue whales. Abdo & Daughters, 1995.

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Gunderson, Megan M. Blue whales. ABDO Pub. Co., 2011.

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ill, Palmer David, ed. Blue whales. Rourke Enterprises, 1989.

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McDonald, Mary Ann. Blue whales. Child's World, 1998.

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Blue whales. AV2 by Weigl, 2013.

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Blue whales. Raintree Steck-Vaughn, 1998.

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1960-, Steiger Gretchen, ed. Blue whales. Voyageur Press, 1997.

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1960-, Steiger Gretchen, ed. Blue whales. Colin Baxter Photography, 1997.

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author, Reiter Chris, ed. Endangered blue whales. Enslow Publishing, 2016.

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Book chapters on the topic "Blue whales"

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Mckelvey, Robert. "Fur Seal and Blue Whale: The Bioeconomics of Extinction." In Applications of Control Theory in Ecology. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-46616-8_4.

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Stafford, Kathleen M. "A Review of Blue Whale Studies from HARUphones in the Pacific." In Modern Acoustics and Signal Processing. Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-3176-7_2.

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Bahoura, Mohammed, and Yvan Simard. "Chirplet Transform Applied to Simulated and Real Blue Whale (Balaenoptera musculus) Calls." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-69905-7_34.

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Carvajal-Gámez, Blanca E., Diane Gendron, and Manuel Alejandro Díaz-Casco. "Whale Tracking: Software System for the Acquisition, Management and Processing of Data on the Blue Whale at Offshore." In HCI International 2018 – Posters' Extended Abstracts. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-92270-6_2.

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Connelly, James. "Vote Blue, Go Green, What’s a Bit of Yellow in Between?" In The Cameron—Clegg Government. Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230305014_8.

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Walsh, Quentin R. "Blue Whales." In The Whaling Expedition of the Ulysses 1937–38. University Press of Florida, 2010. http://dx.doi.org/10.5744/florida/9780813034799.003.0011.

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Korosy, Zsofia. "Whales and the Colonization of the Pacific Ocean." In Blue Legalities. Duke University Press, 2019. http://dx.doi.org/10.1215/9781478007289-012.

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KOROSY, ZSOFIA. "WHALES AND THE COLONIZATION OF THE PACIFIC OCEAN." In Blue Legalities. Duke University Press, 2020. http://dx.doi.org/10.2307/j.ctv1131dk7.14.

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"11. WHALES AND THE COLONIZATION OF THE PACIFIC OCEAN." In Blue Legalities. Duke University Press, 2020. http://dx.doi.org/10.1515/9781478007289-012.

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Walsh, Quentin R. "Flensing and Cutting Blue and Fin Whales." In The Whaling Expedition of the Ulysses 1937–38. University Press of Florida, 2010. http://dx.doi.org/10.5744/florida/9780813034799.003.0015.

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Conference papers on the topic "Blue whales"

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Bocconcelli, Alessandro, Leigh Hickmott, Rafaela Landea Briones, Gloria Howes, and Laela Sayigh. "Blue whales (Balenoptera musculus) in the Canal Moraleda and Golfo Corcovado, Chile." In OCEANS 2015 - Genova. IEEE, 2015. http://dx.doi.org/10.1109/oceans-genova.2015.7271519.

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Bocconcelli, Alessandro, Leigh Hickmott, Gustavo Chiang, et al. "DTAG studies of blue whales (Balaenoptera musculus) in the Gulf of Corcovado, Chile." In Fourth International Conference on the Effects of Noise on Aquatic Life. Acoustical Society of America, 2016. http://dx.doi.org/10.1121/2.0000269.

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Colpaert, Wouter, Rafaela Landea Briones, Gustavo Chiang, and Laela Sayigh. "Blue whales of the Chiloé-Corcovado region, Chile: Potential for anthropogenic noise impacts." In Fourth International Conference on the Effects of Noise on Aquatic Life. Acoustical Society of America, 2016. http://dx.doi.org/10.1121/2.0000304.

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Oleson, E., J. Calambokidis, S. Wiggins, M. McDonald, and J. Hilderbrand. "Spatial and temporal patterns in visual and acoustic detection rates of blue whales in the southern California Bight." In Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492). IEEE, 2003. http://dx.doi.org/10.1109/oceans.2003.178427.

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Liu, Zhenhan, Xiaoxuan Meng, and Lu Xu. "Lock management in blue whale file system." In the 2nd International Conference. ACM Press, 2009. http://dx.doi.org/10.1145/1655925.1656133.

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Silva, Cláudia, Catia Prandi, Nuno J. Nunes, and Valentina Nisi. "Blue whale street art as a landmark." In IDC '20: Interaction Design and Children. ACM, 2020. http://dx.doi.org/10.1145/3392063.3394399.

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Liu, Zhenhan, Xiaoxuan Meng, and Lu Xu. "A File Level RAID in Blue Whale File System." In Communication (HPCC). IEEE, 2011. http://dx.doi.org/10.1109/hpcc.2011.79.

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Bouffaut, Lea, Shyam Madhusudhana, Valerie Labat, Abdel-Ouahab Boudraa, and Holger Klinck. "Automated blue whale song transcription across variable acoustic contexts." In OCEANS 2019 - Marseille. IEEE, 2019. http://dx.doi.org/10.1109/oceanse.2019.8867471.

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Zhang, Jingliang, Chengxiang Si, Yajun Jia, Jiangang Zhang, Xiaoming Han, and Lu Xu. "Volume Based Metadata Isolation in Blue Whale Cluster File System." In 2009 11th IEEE International Conference on High Performance Computing and Communications. IEEE, 2009. http://dx.doi.org/10.1109/hpcc.2009.26.

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Cuevas, Alejandro, Alejandro Veragua, Sonia Espanol-Jimenez, Gustavo Chiang, and Felipe Tobar. "Unsupervised blue whale call detection using multiple time-frequency features." In 2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON). IEEE, 2017. http://dx.doi.org/10.1109/chilecon.2017.8229663.

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Reports on the topic "Blue whales"

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Aburto, A., D. J. Rountry, and J. L. Danzer. Behavioral Response of Blue Whales to Active Signals. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada328274.

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Calambokidis, John, John Francis, Greg Marshall, Don Croll, Mark McDonald, and Terrie Williams. Underwater Behavior of Blue Whales Using a Suction-cup Attached CRITTERCAM. Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada592026.

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Calambodidis, John, John Francis, Greg Marshall, Don Croll, Mark McDonald, and Terrie Williams. Underwater Behavior of Blue Whales Using a Suction-cup Attached CRITTERCAM. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada592027.

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Calambokidis, John, Todd Chandler, Lisa Schlender, Gretchen H. Steiger, and Annie Douglas. Research on Humpback and Blue Whales Off California, Oregon and Washington in 2002. Defense Technical Information Center, 2003. http://dx.doi.org/10.21236/ada592032.

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Calambokidis, John, Todd Chandler, Lisa Schlender, Kristin Rasmussen, and Gretchen Steiger. Research on Humpback and Blue Whales off California, Oregon and Washington in 2000. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada592033.

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Wilcock, William S., and David K. Mellinger. An Investigation of Fin and Blue Whales in the NE Pacific Ocean using Data from Cascadia Initiative Ocean Bottom Seismometers. Defense Technical Information Center, 2014. http://dx.doi.org/10.21236/ada618044.

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Calambokidis, John, Erin Falcone, Annie Douglas, Lisa Schlender, and Jessie Huggins. Photographic Identification of Humpback and Blue Whales off the US West Coast: Results and Updated Abundance Estimates from 2008 Field Season. Defense Technical Information Center, 2009. http://dx.doi.org/10.21236/ada539301.

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Calambokidis, John. Examination of health effects and long-term impacts of deployments of multiple tag types on blue, humpback, and gray whales in the eastern North Pacific. Defense Technical Information Center, 2012. http://dx.doi.org/10.21236/ada571479.

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Calambokidis, John. Examination of Health Effects and Long-Term Impacts of Deployments of Multiple Tag Types on Blue, Humpback, and Gray Whales in the Eastern North Pacific. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada605031.

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Calambokidis, John. Examination of Health Effects and Long-Term Impacts of Deployments of Multiple Tag Types on Blue, Humpback, and Gray Whales in the Eastern North Pacific. Defense Technical Information Center, 2011. http://dx.doi.org/10.21236/ada555051.

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