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Keywords: Cetacean
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Journal Articles
Journal Articles
J Exp Biol (2022) 225 (4): jeb243121.
Published: 24 February 2022
... to build energy budgets, and investigate the costs of diving in free-ranging animals where bio-logging data are available. We propose that a similar approach could be applied to other cetacean species. 6 7 2021 5 1 2022 © 2022. Published by The Company of Biologists Ltd 2022...
Includes: Supplementary data
Journal Articles
J Exp Biol (2021) 224 (13): jeb237586.
Published: 9 July 2021
...-ratio lifting surfaces has evolved in many vertebrate lineages, from fish to cetaceans. Baleen whales (Mysticeti) are the largest swimming animals that exhibit this locomotor strategy, and present an ideal study system to examine how morphology and the kinematics of swimming scale to the largest body...
Includes: Supplementary data
Journal Articles
J Exp Biol (2020) 223 (17): jeb227736.
Published: 11 September 2020
..., cardiorespiratory system and other attributes of diving physiology for pinnipeds and cetaceans to assess how physiological immaturity makes young marine mammals vulnerable to disturbance. Generally, the duration required for body oxygen stores to mature varies across species in accordance with the maternal...
Journal Articles
J Exp Biol (2020) 223 (1): jeb216036.
Published: 13 January 2020
...Lewis G. Halsey; Gil Iosilevskii ABSTRACT Displays of maximum swimming speeds are rare in the laboratory and the wild, limiting our understanding of the top-end athletic capacities of aquatic vertebrates. However, jumps out of the water – exhibited by a diversity of fish and cetaceans – might...
Journal Articles
J Exp Biol (2019) 222 (23): jeb216606.
Published: 3 December 2019
...Ida M. Kragh; Katherine McHugh; Randall S. Wells; Laela S. Sayigh; Vincent M. Janik; Peter L. Tyack; Frants H. Jensen ABSTRACT Anthropogenic underwater noise has increased over the past century, raising concern about the impact on cetaceans that rely on sound for communication, navigation...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (19): jeb208637.
Published: 2 October 2019
... drivers of diving and surfacing heart rate in cetaceans whose faces are always mostly submerged. Using two trained harbour porpoises instrumented with an ECG-measuring sound-and-movement tag (DTAG-3), we investigated the initiation and progression of bradycardia and tachycardia during apnoea and eupnoea...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (11): jeb191916.
Published: 13 June 2019
..., Northwest Territories, Canada . Arct. Sci.   4 , 421 - 431 . 10.1139/as-2017-0046 MacNeill , A. C. ( 1975 ). Blood values for some captive cetaceans . Can. Vet. J.   16 , 187 - 193 . Majewski , A. R. , Walkusz , W. , Lynn , B. R. , Atchison , S. , Eert , J...
Includes: Supplementary data
Journal Articles
J Exp Biol (2019) 222 (5): jeb198457.
Published: 7 March 2019
... of the retia would also explain why dolphins and other cetacean species have a relatively small spleen ( Cozzi et al., 2017 ), as the retia would supply the reservoir of blood given by the spleen to breath-holding seals and humans during prolonged dives ( Hurford et al., 1996 ; Inoue et al., 2013 ). Here, we...
Journal Articles
J Exp Biol (2018) 221 (12): jeb177758.
Published: 22 June 2018
... metabolic output. We investigated the locomotor muscle morphology and metabolism of this cetacean to determine whether its muscle profile (1) explains this unique swimming performance and feeding behaviour, (2) is or is not homogeneous within the muscle, and (3) predicts allometric variations inherent...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (9): jeb171959.
Published: 8 May 2018
...T. Aran Mooney; Manuel Castellote; Lori Quakenbush; Roderick Hobbs; Eric Gaglione; Caroline Goertz ABSTRACT Documenting hearing abilities is vital to understanding a species’ acoustic ecology and for predicting the impacts of increasing anthropogenic noise. Cetaceans use sound for essential...
Journal Articles
J Exp Biol (2018) 221 (1): jeb168740.
Published: 9 January 2018
... intensely in pinnipeds, but comparatively little is known for cetaceans, in particular in ecologically relevant settings. Here, we studied the dive f H response in one of the smallest cetaceans, the harbour porpoise ( Phocoena phocoena ). We used a novel multi-sensor data logger to record dive behaviour, f...
Includes: Supplementary data
Journal Articles
J Exp Biol (2017) 220 (20): 3802–3811.
Published: 15 October 2017
... (median, 0.0035) to that in other cetaceans, indicated greater basal metabolic costs during diving than for other cetaceans. This could explain the comparatively short duration (8.9±1.5 min) of their deep dives (maximum depth, 444±85 m). Hydrodynamic gliding models indicated negative buoyancy of tissue...
Journal Articles
J Exp Biol (2017) 220 (8): 1490–1496.
Published: 15 April 2017
..., it promotes enhanced muscle biochemistry: newborn and adult spinner dolphins had four- and two-times greater Mb contents than newborn and adult bottlenose dolphins, respectively. Indeed, adult levels rivaled those of deep-diving cetaceans. Nonetheless, the relatively underdeveloped muscle biochemistry...
Journal Articles
J Exp Biol (2016) 219 (18): 2828–2836.
Published: 15 September 2016
...Shawn R. Noren; Robert Suydam ABSTRACT Little is known about the postnatal development of the physiological characteristics that support breath-hold in cetaceans, despite their need to swim and dive at birth. Arctic species have the additional demand of avoiding entrapment while navigating under...
Journal Articles
J Exp Biol (2016) 219 (13): 2066–2077.
Published: 1 July 2016
...Marjoleine M. H. Roos; Gi-Mick Wu; Patrick J. O. Miller ABSTRACT Respiration rate has been used as an indicator of metabolic rate and associated cost of transport (COT) of free-ranging cetaceans, discounting potential respiration-by-respiration variation in O 2 uptake. To investigate the influence...
Includes: Supplementary data
Journal Articles
J Exp Biol (2014) 217 (10): 1682–1691.
Published: 15 May 2014
... (AEPs). All audiograms showed a typical cetacean U-shape; substantial variation (>30 dB) was found between most and least sensitive thresholds. All animals heard well, up to at least 128 kHz. Two heard up to 150 kHz. Lowest auditory thresholds (35–45 dB) were identified in the range 45–80 kHz...
Journal Articles
J Exp Biol (2014) 217 (7): 1024–1039.
Published: 1 April 2014
... adapted to sea level, high-altitude, underground and aquatic habitats. Oxygen levels can also change dramatically on a shorter-term basis, as can occur in tidal pools or in breath-hold divers. Arctic ground squirrel Cetacean Hypoxia Naked mole-rat Seal Turtle © 2014. Published...
Journal Articles
J Exp Biol (2013) 216 (10): 1862–1871.
Published: 15 May 2013
...-diving cetaceans dive within their ADLs. Beaked whales (including Ziphius cavirostris and Mesoplodon densirostris ) routinely perform the deepest and longest average dives of any air-breathing vertebrate, and short-finned pilot whales ( Globicephala macrorhynchus ) perform high-speed sprints at depth. We...
Includes: Supplementary data
Journal Articles
J Exp Biol (2012) 215 (24): 4330–4339.
Published: 15 December 2012
...Laura E. Bagge; Heather N. Koopman; Sentiel A. Rommel; William A. McLellan; D. A. Pabst SUMMARY Blubber, the specialized hypodermis of cetaceans, provides thermal insulation through the quantity and quality of lipids it contains. Quality refers to percent lipid content; however, not all lipids...