Results 71 to 80 of about 737 (167)

Intraspecific variation of cochlear morphology in bowhead and beluga whales

The Anatomical Record, Volume 309, Issue 6, Page 1514-1529, June 2026.
Abstract The bony labyrinth of the petrosal bone, a distinctive feature of mammal skulls, is often identified in micro‐computed tomography imaging to infer species' physiological and ecological traits. When done as part of a comparative study, one individual specimen is normally considered representative of a species, and intraspecific variation is ...
John Peacock, J. G. M. Thewissen
wiley   +1 more source

Temporal changes in the dietary niche of sympatric seals provides insight into the role of competition in population declines

Oikos, Volume 2026, Issue 6, June 2026.
Competition theory suggests that interspecific prey competition can result in changes to the dietary niche, but obtaining timeseries of data from sympatric species experiencing temporal variation in competition is challenging. Scotland is an important area for two species of seals, but over the past 20 years, populations of harbour seals Phoca vitulina
Izzy Langley, Philip S. Hammond, Paul M. Thompson, Graham J. Pierce, Lindsay J. Wilson, Ailsa J. Hall, Gordon D. Hastie, Debbie J. F. Russell   +7 more
wiley   +1 more source

Determining optimal pinger spacing for harbour porpoise bycatch mitigation

Endangered Species Research, 2013
A trial was conducted in the Danish North Sea hake gillnet fishery in July to September 2006 to determine whether the spacing of the Aquatec AQUAmark100 pinger could be increased without reducing the effectiveness of the pinger in mitigating harbour ...
F Larsen, C Krog, O Ritzau Eigaard
doaj   +1 more source

Feeding ecology of harbour porpoises Phocoena phocoena stranded on the Galician coast (NW Spain) between 1990 and 2018

Endangered Species Research
Diet studies on the endangered and genetically distinct Iberian population of the southern harbour porpoise Phocoena phocoena are scarce. The present study provides updated information on the feeding ecology of this cetacean along the Galician coast (NW ...
A Hernandez-Gonzalez, C Saavedra, FL Read, A López, A Gouveia, P Covelo, A Alonso-Fernández, F Velasco, M Begoña Santos, GJ Pierce   +9 more
doaj   +1 more source

Negative long term effects on harbour porpoises from a large scale offshore wind farm in the Baltic—evidence of slow recovery

Environmental Research Letters, 2012
Offshore wind farms constitute a new and fast growing industry all over the world. This study investigates the long term impact on harbour porpoises, Phocoena phocoena , for more than 10 years (2001–12) from the first large scale offshore wind farm in ...
Jonas Teilmann, Jacob Carstensen
doaj   +1 more source

Preserving an Imperiled Porpoise Through Pixels: Digitization of a Vaquita (Phocoena sinus) Skeleton, the World's Most Endangered Marine Mammal

Marine Mammal Science, Volume 42, Issue 3, July 2026.
Jamie L. Knaub, Brittany A. Dolan, Philip Unitt, Robert L. Brownell Jr., Tricia L. Meredith, Marianne E. Porter   +5 more
wiley   +1 more source

Proteomic Insights Into Liver Pathology and Stratified Blubber Biology in a Stranded Adult‐Juvenile Cetacean Pair: A Proof‐of‐Concept Study

Marine Mammal Science, Volume 42, Issue 3, July 2026.
Davina Derous, Nicholas J. Davison, Andrew Brownlow   +2 more
wiley   +1 more source

Investigation of Spatiotemporal Patterns of Harbour Porpoise (Phocoena phocoena) Strandings in Swedish Waters for Improved Monitoring and Management

Oceans
Harbour porpoises (Phocoena phocoena) are the only cetacean residents found year-round in Swedish waters and they are exposed to numerous natural and anthropogenic threats.
Vigge Ulfsson, Hyeyoung Kim, Linnea Cervin, Anna Roos, Aleksija Neimanis   +4 more
doaj   +1 more source

Growth of the harbour porpoise (Phocoena phocoena) in eastern Newfoundland, Canada

NAMMCO Scientific Publications, 2003
Although the stock relationships among harbour porpoise (Phocoena phocoena) in the Northwest Atlantic are unknown, it has been postulated that there are 4 local populations: Bay of Fundy/Gulf of Maine, Gulf of St.
S F Richardson, G B Stenson, C Hood
doaj   +1 more source

Effects of pile-driving on harbour porpoises (Phocoena phocoena) at the first offshore wind farm in Germany

Environmental Research Letters, 2013
The first offshore wind farm ‘alpha ventus’ in the German North Sea was constructed north east of Borkum Reef Ground approximately 45 km north off the German coast in 2008 and 2009 using percussive piling for the foundations of 12 wind turbines.
Michael Dähne, Anita Gilles, Klaus Lucke, Verena Peschko, Sven Adler, Kathrin Krügel, Janne Sundermeyer, Ursula Siebert   +7 more
doaj   +1 more source