Results 81 to 90 of about 7,925 (202)

Marine Mammals in the Anthropocene: Developing a Systematic Evidence Base of Threats to Nineteen Species

open access: yesMammal Review, Volume 56, Issue 1, March 2026.
Marine mammals are vulnerable to a variety of anthropogenic threats, yet a global systematic map of the literature for 19 species found both spatial and temporal disparity in research effort between threats and between species. There are knowledge gaps for species and threats, with effort unequal across many species' ranges.
Emily L. Hague   +9 more
wiley   +1 more source

Distance sampling with a random scale detection function [PDF]

open access: yes, 2015
Cornelia Oedekoven was supported by a studentship jointly funded by the University of St Andrews and EP-SRC, through the National Centre for Statistical Ecology (EP-SRC Grant EP/C522702/1).
Laake, J.L.   +2 more
core   +2 more sources

Evaluating the Risk of Collision of Seals Swimming Within Metres of Operating Tidal Turbines

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT We used imaging sonar to continuously monitor wildlife at an operational tidal turbine in the Pentland Firth, Scotland, between May 2022 and June 2023. Of 704 detected seal tracks, 347 occurred during turbine operation and 122 of these were detected directly upstream of the rotating blades in the horizontal plane.
Jessica Montabaranom   +4 more
wiley   +1 more source

Do pingers cause stress in fish? An experimental tank study with European sardine, Sardina pilchardus (Walbaum, 1792) (Actinopterygii, Clupeidae), exposed to a 70 kHz dolphin pinger [PDF]

open access: yes, 2014
Date of acceptance: 06/12/2014 Acknowledgments The study was funded by the Portuguese Ministry of Science (Fundac¸a˜o para a Cieˆncia e Tecnologia– FCT) through a PhD Grant of SG (SFRH/BD/47931/2008).
Begona Santos, M.   +5 more
core   +1 more source

Vocalization Characteristics of the Indo‐Pacific Humpback Dolphins (Sousa chinensis) in Xiamen Bay With Insights on Regional Differences

open access: yesEcology and Evolution, Volume 16, Issue 2, February 2026.
The Indo‐Pacific humpback dolphin population in Xiamen Bay was divided into two geographically separated but socially associated communities inhabiting the West and East sub‐regions. Based on 3 years of boat‐based surveys, this study established baseline acoustic characteristics and investigated whether vocal patterns varied with habitat conditions ...
Xuming Peng   +11 more
wiley   +1 more source

Historic and Current Use of Lower Cook Inlet, Alaska, by Belugas, Delphinapterus leucas [PDF]

open access: yes, 2000
Dedicated at-sea surveys for marine birds and mammals conducted in lower Cook Inlet in late July and early August from 1995–99 failed to locate any belugas, Delphinapterus leucas.
Piatt, John F., Speckman, Suzann G.
core  

Brucella ceti and Brucellosis in Cetaceans [PDF]

open access: yes, 2012
Since the first case of brucellosis detected in a dolphin aborted fetus, an increasing number of Brucella ceti isolates has been reported in members of the two suborders of cetaceans: Mysticeti and Odontoceti. Serological surveys have shown that cetacean
Caterina eGuzmán-Verri   +7 more
core   +1 more source

Using marine mammal necropsy data in animal health surveillance: the case of the harbor porpoise in the Southern North Sea

open access: yesFrontiers in Marine Science
Rapid changes of marine ecosystems resulting from human activities and climate change, and the subsequent reported rise of infectious diseases in marine mammals, highlight the urgency for timely detection of unusual health events negatively affecting ...
Lonneke L. IJsseldijk   +6 more
doaj   +1 more source

Incidental Catch of Marine Mammals by Foreign and Joint Venture Trawl Vessels in the U.S. EEZ of the North Pacific, 1973-88 [PDF]

open access: yes, 1991
During 1973-88, 3,661 marine mammals of 17 species were reported as incidental catch by U.S. fishery observers aboard foreign and joint venture trawl vessels in the U.S. Exclusive Economic Zone in the North Pacific Ocean and the Bering Sea. Northern sea
Loughlin, Thomas, Perez, Michael A.
core  

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