Results 51 to 60 of about 34,561 (255)

Review of Attached Acoustic Behavior Recorders for Cetaceans

水下无人系统学报, 2023
After tens of millions of years of evolution, cetaceans have relied on advanced sonar systems for hunting, detection, communication, positioning, and underwater navigation.
Song-zuo LIU, Yun-cong WANG, Xin QING, Yue DUAN, Peng-nan SUN, Jing-Wei YIN, Gang QIAO   +6 more
doaj   +1 more source

Distinguishing personal belief from scientific knowledge for the betterment of killer whale welfare – a commentary [PDF]

, 2020
We contest publication of Marino et al. regarding captive killer whale (Orcinus orca) welfare because of misrepresentations of available data and the use of citations that do not support assertions. Marino et al. misrepresent stress response concepts and
Abramson, Charles I., Almunia, Javier, Dudzinski, Kathleen M, Feucht, Todd, Frick, Erin, Hill, Heather M, Lilly, Malin, Makecha, Radhika, Stafford, Grey, Zaccaroni, Annalisa   +9 more
core  

Whales, dolphins or fishes? The ethnotaxonomy of cetaceans in São Sebastião, Brazil

Journal of Ethnobiology and Ethnomedicine, 2007
The local knowledge of human populations about the natural world has been addressed through ethnobiological studies, especially concerning resources uses and their management. Several criteria, such as morphology, ecology, behavior, utility and salience,
Souza Shirley P, Begossi Alpina
doaj   +1 more source

Whales, dolphins, and porpoises of the western North Atlantic: a guide to their identification [PDF]

, 1976
This is an identification guide for cetaceans (whales, dolphins, and porpoises). It was designed to assist laypersons in identifying cetaceans encountered in the western North Atlantic Ocean and was intended for use by ongoing cetacean observer programs.
Caldwell, David K., Caldwell, Melba C., Leatherwood, Stephen, Schevill, William E, Winn, Howard E.   +4 more
core  

Echolocation detections and digital video surveys provide reliable estimates of the relative density of harbour porpoises [PDF]

, 2016
Acknowledgements We would like to thank Erik Rexstad and Rob Williams for useful reviews of this manuscript. The collection of visual and acoustic data was funded by the UK Department of Energy & Climate Change, the Scottish Government, Collaborative ...
Beth E. Scott, Buckland S.T., Gareth Bradbury, Isla M. Graham, Jana McPherson, Kate L. Brookes, Laura D. Williamson, Mudge G.P., Paul M. Thompson, Philip S. Hammond, R Core Team   +10 more
core   +2 more sources

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

The Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc, Tommaso Gerussi, Bruno Cozzi, Rebecca M. Boys, Brian Chin Wing Kot, Matthew R. Perrott, Kane Fleury, Tabris Yik To Chung, Henry Chun Lok Tsui, Emma Burns, Trudi Webster, Stuart Hunter, Emma L. Betty, Odette Howarth, Carolina Loch, Sophie White, Steve Dawson, William Rayment, Ros Cole, Derek Cox, Tom Waterhouse, Hannah Hendriks, Anton van Helden, Muriel Johnstone, Ramari Oliphant Stewart, R. Ewan Fordyce, Karen A. Stockin   +26 more
wiley   +1 more source

Adaptive evolution of the Hox gene family for development in bats and dolphins. [PDF]

PLoS ONE, 2013
Bats and cetaceans (i.e., whales, dolphins, porpoises) are two kinds of mammals with unique locomotive styles and occupy novel niches. Bats are the only mammals capable of sustained flight in the sky, while cetaceans have returned to the aquatic ...
Lu Liang, Yong-Yi Shen, Xiao-Wei Pan, Tai-Cheng Zhou, Chao Yang, David M Irwin, Ya-Ping Zhang   +6 more
doaj   +1 more source

Spatial Distribution and Encounter Rates of Delphinids and Deep Diving Cetaceans in the Eastern Mediterranean Sea of Turkey and the Extent of Overlap With Areas of Dense Marine Traffic

Frontiers in Marine Science, 2022
Marine traffic has been identified as a serious threat to Mediterranean cetaceans with few mitigation strategies in place. With only limited research effort within the Eastern Basin, neither baseline species knowledge nor the magnitude of threats have ...
Tim Awbery, Tim Awbery, Aylin Akkaya, Aylin Akkaya, Patrick Lyne, Laura Rudd, Gemma Hoogenstrijd, Madeleine Nedelcu, David Kniha, Mehmet Akif Erdoğan, Cherisse Persad, Ayaka Amaha Öztürk, Bayram Öztürk   +12 more
doaj   +1 more source

Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters: a guide to their identification [PDF]

, 1982
This is an identification guide for cetaceans (whales, dolphins, and porpoises), that was designed to assist laymen in identifying cetaceans encountered in eastern North Pacific and Arctic waters.
Evans, William E., Hobbs, Larry, Leatherwood, Stephen, Perrin, William F., Reeves, Randall R.   +4 more
core  

Broadening the semiaquatic scene: Quantification of long bone microanatomy across pinnipeds

The Anatomical Record, EarlyView.
Abstract Investigations of bone microanatomy are commonly used to explore lifestyle strategies in vertebrates. While distinct microanatomical limb bone features have been established for exclusively aquatic and terrestrial lifestyles, identifying clear patterns for the semiaquatic lifestyle remains more challenging.
Apolline Alfsen, Christian de Muizon, Olivier Lambert, Giovanni Bianucci, Antonia R. Kaffler, Matthew R. McCurry, Alexandra Houssaye, Rafael M. Varas‐Malca, Rodolfo Salas‐Gismondi, Oliver Hampe, Eli Amson   +10 more
wiley   +1 more source