Results 41 to 50 of about 26,548 (258)

Following the Food: Dynamic, Seasonal Changes in the Fine-Scale Distribution of Foraging Minke Whales Within a Scottish Marine Protected Area (MPA)

Oceans
Environmental heterogeneity is especially important in determining the distribution and spatial management of marine mammals. Intra-annual changes in distribution exhibited by highly mobile species such as baleen whales, however, present a challenge to ...
Duncan A. I. MacDougall, Kevin P. Robinson   +1 more
doaj   +1 more source

The effect of a multi-target protocol on cetacean detection and abundance estimation in aerial surveys [PDF]

Royal Society Open Science, 2019
A double-platform protocol was implemented in the Bay of Biscay and English Channel during the SCANS-III survey (2016). Two observation platforms using different protocols were operating on board a single aircraft: the reference platform (Scans ...
C. Lambert, M. Authier, G. Dorémus, A. Gilles, P. Hammond, S. Laran, A. Ricart, V. Ridoux, M. Scheidat, J. Spitz, O. Van Canneyt   +10 more
doaj   +1 more source

Dolphin Morbillivirus Associated with a Mass Stranding of Sperm Whales, Italy [PDF]

, 2017
In September 2014, 7 sperm whales stranded along the Adriatic Italian coastlines. Postmortem investigations on 3 dead females dead and in 1 fetus harbored by the largest one revealed molecular and immunoistochemical evidences of dolphin morbillivirus ...
Cardeti, Giusy, Casalone, Cristina, CENTELLEGHE, CINZIA, Cersini, Antonella, Di Guardo, Giovanni, Fichi, Gianluca, Francesco, Cristina Esmeralda Di, MAZZARIOL, SANDRO, Mignone, Walter, Petrella, Antonio, Provvido, Andrea Di, Renzo, Ludovica Di   +11 more
core   +2 more sources

Using Case Studies to Investigate Cetacean Bycatch/Interaction Under-Reporting in Countries With Reporting Legislation

Frontiers in Marine Science, 2021
Accurate reporting of cetacean bycatch in/interaction with fishing gear in fisher logbooks would be of immense scientific value; however, despite some countries having mandatory reporting laws, logbook reporting is widely considered unreliable and ...
Charla Jean Basran, Guðjón Már Sigurðsson   +1 more
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

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

Synthesis and Modification of Cetacean Tonal Sounds for Underwater Bionic Covert Detection and Communication

IEEE Access, 2020
For most conventional bionic signal design methods, they cannot construct high-similarity bionic signals to match those complex cetacean sounds because they are only based on relatively simple bionic signal models.
Jiajia Jiang, Zhongbo Sun, Fajie Duan, Xiao Fu, Xianquan Wang, Chunyue Li, Wei Liu, Lin Gan   +7 more
doaj   +1 more source

Acoustics in water: synergies with marine biology [PDF]

, 2016
This paper presents some of the bioacoustics related analysis that was performed on the ANTARES data, focussing on the year 2014. The data was processed for sperm whale, dolphin and shipping presence and grouped by hour of the day.
André, Michel, Graf, Kay, Houégnigan, Ludwig, Lahmann, Robert, Solsona Berga, Alba, Sánchez, Antonio, Van der Schaar, Mike Connor Roger Malcolm, Vreese, Steffen de   +7 more
core   +1 more source