Results 61 to 70 of about 6,377 (167)

Seasonal Abundance, Density and Distribution of Cetaceans in the Bulgarian Black Sea Shelf in 2017

Diversity, 2023
Black Sea cetaceans are isolated and nominated as endemic subspecies listed in the IUCN Red List of Endangered species: the harbour porpoise and bottlenose dolphin as Endangered (EN) and the common dolphin as Vulnerable (VU).
Dimitar Popov, Marina Panayotova, Radoslava Bekova, Hristo Dimitrov, Galina Meshkova   +4 more
doaj   +1 more source

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

Mammal 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, Rachael R. Sinclair, Joanna L. Kershaw, Davina Derous, Ross M. Culloch, Carol E. Sparling, Nicholas Baker‐Horne, Marija Sciberras, Teresa F. Fernandes, Lauren H. McWhinnie   +9 more
wiley   +1 more source

Seasonal dynamics of occurrence and group size of three species of cetaceans (Delphinidae and Phocoenidae) on the southwestern coast of the Black Sea

Scientia Marina, 2020
The spatial and temporal occurrence of cetaceans in the Black Sea and particularly along its southwestern coastline is poorly studied. Based on a total of 609 encounters, we present the analysis of monthly dynamics of (1) the numbers of cetacean ...
Nastassia Uluduz, Alexey Yanchukov, Mustafa Sözen   +2 more
doaj   +1 more source

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

Aquatic 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, Douglas Gillespie, Carol Sparling, Emma Longden, Gordon Hastie   +4 more
wiley   +1 more source

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

Ecology 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, Zhiyuan Hua, Fuxing Wu, Fei Zhang, Weijie Fu, Yupeng Li, Chuang Zhang, Wenzhan Ou, Wenjie Xiang, Bing Zhou, Zhongchang Song, Yu Zhang   +11 more
wiley   +1 more source

Ultra-high foraging rates of harbor porpoises make them vulnerable to anthropogenic disturbance [PDF]

, 2016
This study was partly funded by the German Federal Agency for Nature Conservation (BfN) under the contract Z1.2-5330/2010/14 and the BfN-Cluster 7 “Effects of underwater noise on marine vertebrates.” D.M.W. and P.T.M.
Johnson, Mark, Madsen, Peter Teglberg, Miller, Lee A., Rojano-Doñate, Laia, Shearer, Jeanne, Siebert, Ursula, Sveegaard, Signe, Teilmann, Jonas, Wisniewska, Danuta Maria   +8 more
core   +2 more sources

Seasonal Abundance and Distribution of Cetaceans in a High Traffic Shipping Corridor

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT The recovery of many cetacean species coincides spatially and temporally with intensifying anthropogenic threats. We undertook multi‐year systematic surveys to quantify seasonal abundance and document the distribution of at‐risk cetaceans, which is needed to assess the impacts of increasing human activities in the Canadian portions of the ...
Christie J. McMillan, Elise A. Keppel, Lisa D. Spaven, Stacey M. Hrushowy, Thomas Doniol‐Valcroze   +4 more
wiley   +1 more source

Tracing Time's Footprints: Exploring Feeding Ecology and Historical Changes of Mediterranean Common Dolphin (Delphinus delphis) Over Two Centuries

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT The Mediterranean common dolphin (Delphinus delphis) presents an enigmatic natural history during the past centuries. Widely prevalent in the 19th and early 20th centuries, it faced a significant decline across most of the basin by the late 1960s caused by multiple anthropogenic threats, including culling, bycatch, prey depletion, and habitat ...
Martina Pasino, Joan Giménez, Maria Vittoria Iacovelli, Matilde Giola, Paola Iacumin, Mattia Rossi, Michela Podestà, Guido Gnone, Mediterranean Museum Network, Roberto Balzani, Annalisa Managlia, Roberto Basso, Enrico Bellia, Fabrizio Cancelli, Giuseppe Manganelli, Letizia Marsili, Elena Bonaccorsi, Damiano Marchi, Simone Farina, Piergiulio Cappelletti, Roberta Improta, Riccardo Castiglia, Giorgio Cataldini, Giuliano Doria, Luca Ghiraldi, Gianni Insacco, Omar Lodovici, Stefano Maretti, Stefano Mazzotti, Luca Mizzan, Annamaria Nistri, Annamaria Nocita, Michela Podestà, Susanna Salvadori, Sara Ferrando, Stefano Schiaparelli, Javier Quesada, Fausto Tinti   +37 more
wiley   +1 more source

Low-frequency components in harbor porpoise (Phocoena phocoena) clicks : communication signal, by-products, or artifacts? [PDF]

, 2008
Author Posting. © Acoustical Society of America, 2008. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution.
Amundin M., Andersen S., Bradbury J. W., Dubrovskii N. A., Dusenbery D. B., Janik V. M., Kamminga C., Koschinski S., M. Hansen, M. Wahlberg, Madsen P. T., Madsen P. T., Morisaka T., P. T. Madsen, Schevill W. E., Teilmann J., Tyack P., Urick R. J., Verboom W. C., Vinther M., Weber P. J.   +20 more
core   +1 more source

Talking About the Weather: The Feasibility of Using Very High‐Resolution Optical Satellite Imagery to Monitor Live and Stranded Cetaceans Around the UK and UK Overseas Territories

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Monitoring live and stranded cetaceans can be expensive and logistically challenging, resulting in knowledge gaps. Very high‐resolution (VHR) optical satellites are considered a potential solution to addressing some of these gaps. Despite success at detecting live and stranded cetaceans, satellites have only been trialed on restricted ...
Penny J. Clarke, Hannah C. Cubaynes, Jennifer A. Jackson, Nicola L. Taylor, David W. Johnston, Asha de Vos, Peter T. Fretwell, Aliaksandra Skachkova, Gwawr Jones   +8 more
wiley   +1 more source