Results 71 to 80 of about 3,607 (212)

Assessment of the bycatch level for the Black Sea harbour porpoise in the light of new data on population abundance

Frontiers in Marine Science, 2023
Incidental catch in fishing gear (often known as bycatch) is a major mortality factor for the Black Sea harbour porpoise (Phocoena phocoena relicta), an endemic subspecies listed as Endangered in the IUCN Red List.
Dimitar Popov, Dimitar Popov, Galina Meshkova, Karina Vishnyakova, Karina Vishnyakova, Julia Ivanchikova, Julia Ivanchikova, Julia Ivanchikova, Marian Paiu, Marian Paiu, Costin Timofte, Ayaka Amaha Öztürk, Ayaka Amaha Öztürk, Arda M. Tonay, Arda M. Tonay, Ayhan Dede, Ayhan Dede, Marina Panayotova, Ertuğ Düzgüneş, Pavel Gol’din, Pavel Gol’din, Pavel Gol’din   +21 more
doaj   +1 more source

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

Harbour Porpoises Are Flexible Predators Displaying Context‐Dependent Foraging Behaviours

Ecology and Evolution
Opportunistic mobile predators can adapt their behaviour to specific foraging scenarios, allowing them to target diverse prey resources. An interesting example is the harbour porpoise (Phocoena phocoena), a marine mammal with a huge energy demand feeding
Johanna Stedt, Héloïse Hamel, Sara Torres Ortiz, Jakob Højer Kristensen, Magnus Wahlberg   +4 more
doaj   +1 more source

Multiple stressors and data deficient populations; a comparative life-history approach sheds new light on the extinction risk of the highly vulnerable Baltic harbour porpoises (Phocoena phocoena)

Environment International, 2020
Many endangered marine mammal populations are difficult to study, spread out over large areas, and capturing them for branding and research purposes would be unethical. Yet, they are in urgent need for assessment and conservation actions.
Linnea Cervin, Tero Harkonen, Karin C. Harding   +2 more
doaj   +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

Whole Genome Analyses of the Endangered Northern Abalone (Haliotis kamtschatkana) Reveal Population Differentiation and a Genomic Signature of a Dramatic Population Decline

Evolutionary Applications, Volume 19, Issue 6, June 2026.
ABSTRACT Despite widespread declines of many wildlife species, the effects of population decline on the genome and the recovery potential of affected species are still poorly understood, especially beyond a few charismatic species. The Northern abalone (or Pinto abalone; Haliotis kamtschatkana) is a marine gastropod mollusk of social, cultural and ...
Anna Tigano, Erin C. Herder, Kayla Long, Janine Supernault, Daniel L. Curtis, S. Christine Hansen, Mackenzie D. Mazur, Eric B. Rondeau, Dominique Bureau   +8 more
wiley   +1 more source

Phocoena phocoena (harbor porpoise) - MCZ-56983

, 2022
Phocoena phocoena (harbor porpoise) - MCZ-56983 - unknown sex - unknown length - Pelvic location - Harvard ...

core  

Phocoena phocoena (harbor porpoise) - MCZ-57860

, 2022
Phocoena phocoena (harbor porpoise) - MCZ-57860 - unknown sex - unknown length - Pelvic location - Harvard ...

core  

The Importance of Individual Body Condition in Mammalian Behavioural Responses to Disturbance

Mammal Review, Volume 56, Issue 2, June 2026.
Body condition, shaped by the balance between energy demands and reserves, predictably shapes mammalian disturbance responses. Poor‐condition individuals adopt needs‐based strategies, accepting greater risks to meet immediate energetic needs, while good‐condition individuals follow asset‐protection strategies, minimizing risks to protect their survival
Valeria Perez‐Marrufo, Lesley Thorne, Susan E. Parks   +2 more
wiley   +1 more source

Whole‐Genome‐Sequencing Reveals Demographic History and Patterns of Parallel Adaptive Evolution in Indo‐Pacific Bottlenose Dolphins (Tursiops aduncus) Across Coastal Australian Seascapes

Molecular Ecology, Volume 35, Issue 11, June 2026.
ABSTRACT Understanding how demographic dynamics interact with environmental heterogeneity is central to explaining patterns of genomic variation in the marine realm. Indo‐Pacific bottlenose dolphins (Tursiops aduncus) occur along most of the Australian coastline, from tropical to temperate waters, encompassing pronounced differences in temperature ...
Svenja M. Marfurt, Adrien Tran Lu Y, Benjamin Dauphin, Manuela R. Bizzozzero, Masaomi Hatakeyama, Delphine B. H. Chabanne, Simon J. Allen, Felix Smith, Guido J. Parra, Michael Krützen   +9 more
wiley   +1 more source