Results 61 to 70 of about 572 (155)

Sexing From Seawater: Application of Environmental DNA Beyond Species Detection for Cetaceans

Environmental DNA
Anthropogenic pressures on marine ecosystems are intensifying, highlighting the need to bridge knowledge gaps for species at risk. Data deficiencies, particularly for species recovering from historic declines, such as marine megafauna like whales, hinder
Chloe Victoria Robinson, Emma June Laqua, Adam Warner, Gary J. Sutton, Michael W. D. Judson, Karina Dracott   +5 more
doaj   +1 more source

Integrating Multiple Data Sources Improves Abundance Estimation in Spatial Capture–Recapture Models

Ecology and Evolution, Volume 16, Issue 10, October 2026.
This study demonstrates how integrating multiple data streams improves abundance estimation for a wide‐ranging marine population, eastern North Pacific blue whales. The application of this approach is valuable to accurately track population size which is critical to guide conservation and management strategies.
Georgina Whittome, John Calambokidis, Philip S. Hammond, Ladd Irvine, Bruce R. Mate, Daniel M. Palacios, Sophie Smout, Chris Sutherland   +7 more
wiley   +1 more source

Opportunistic Feeding and Parasite Assemblages in Sei Whales (Balaenoptera borealis) From Southern Chile Revealed by DNA Metabarcoding

Ecology and Evolution, Volume 16, Issue 10, October 2026.
This study represents the first metabarcoding‐based description of prey composition and parasite‐associated taxa in stranded sei whales from southern South America. ABSTRACT Balaenopterid whales are major consumers in pelagic ecosystems and play a fundamental role in marine food webs.
Daniela Haro, Guillaume Schwob, Luis Bedriñana‐Romano, Valentina Bernal‐Durán, Benjamín Cáceres, Rodrigo Hucke‐Gaete, Miguel Cáceres, Olivia Blank, Camila Calderón‐Quirgas, Mauricio Ulloa, Francisco Viddi   +10 more
wiley   +1 more source

Drone-based photogrammetry reveals differences in humpback whale body condition and mass across North Atlantic foraging grounds

Frontiers in Marine Science
Baleen whales are key consumers in marine ecosystems and can serve as ecosystem sentinels. Body condition, defined as an individual’s energy stores relative to its structural size, can provide a useful proxy for health in baleen whales.
Chelsi Napoli, Nathan Hirtle, Julia Stepanuk, Fredrik Christiansen, Eleanor I. Heywood, Thomas J. Grove, Alyssa Stoller, Flordespina Dodds, Maria Glarou, Marianne H. Rasmussen, Gina L. Lonati, Kimberley T.A. Davies, Simone Videsen, Malene J. Simon, Tenna K. Boye, Ann Zoidis, Ann Zoidis, Sean K. Todd, Lesley H. Thorne, Lesley H. Thorne   +19 more
doaj   +1 more source

Time‐stressed Bar‐tailed Godwits exploit novel prey during migratory fuelling

Ibis, Volume 168, Issue 4, Page 1681-1695, October 2026.
Long‐distance migratory birds breeding in the Arctic face challenges as earlier snowmelt shifts the timing of vital resources. To keep up with these advancements, birds will need to modify their migration. Higher fuelling rates during stopover have been identified as a critical mechanism for accelerating migration, but this requires adequate food ...
Hailley Danielson‐Owczynsky, Allert I. Bijleveld, Ran Nathan, Sivan Toledo, Roeland A. Bom   +4 more
wiley   +1 more source

Humpback Highs and Lows Amid Shifting Seas and a Northeast Pacific Marine Heatwave: Whale Demographics in the Main Hawaiian Islands, 2002–2023

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT North Pacific humpback whales are a celebrated conservation success, rebounding from extensive commercial whaling. Yet they remain vulnerable to the impacts of climate change, a multifaceted stressor that can exacerbate existing threats. During 2013–2016, a Northeast Pacific marine heatwave severely reduced forage availability in their feeding
S. M. Barber‐Meyer, T. Cheeseman, J. Barlow, L. Bejder, A. L. Bradford, R. Cartwright, M. Deakos, L. Evans, R. Finn, C. M. Gabriele, B. Goodwin, C. Hayslip, E. E. Henderson, M. Jones, M. Lammers, E. Lyman, D. M. McSwain, J. Mobley, M. Olio, A. A. Pack, D. M. Palacios, H. R. Spears, S. H. Stack, F. A. Sullivan, M. van Aswegen, K. M. Yano, S. Yin, A. Zoidis, J. J. Currie   +28 more
wiley   +1 more source

Solitary humpback whales manufacture bubble-nets as tools to increase prey intake

Royal Society Open Science
Several animal species use tools for foraging; however, very few manufacture and/or modify those tools. Humpback whales, which manufacture bubble-net tools while foraging, are among these rare species.
A. Szabo, L. Bejder, H. Warick, M. van Aswegen, A. S. Friedlaender, J. Goldbogen, J. M. Kendall-Bar, E. M. Leunissen, M. Angot, W. T. Gough   +9 more
doaj   +1 more source

Insult to Injury: Population Impacts of Sublethal Entanglement and Vessel Strikes of Common Bottlenose Dolphins (Tursiops truncatus) in Barataria Basin, Louisiana, 2011–2023

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Human interactions, specifically fishery entanglements (FI) and vessel strikes (VI), threaten marine mammals, including the Barataria Bay Estuarine System (BBE) Stock of common bottlenose dolphins (Tursiops truncatus). We reviewed whole‐body photographs to estimate the prevalence of sublethal entanglement and vessel strike scars for 227 ...
Eric S. Zolman, Todd Speakman, Jeanine Morey, Leslie Hart, Cynthia R. Smith, Wayne McFee, Lori Schwacke, Ryan Takeshita   +7 more
wiley   +1 more source

Group‐Specific Variation in Heterodyne Frequencies of Biphonic Calls in Resident (R‐Type) Killer Whales Orcinus orca ater

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Biphonation—the simultaneous production of two independent fundamental frequencies within a single vocalization—is a prominent feature of killer whale calls, yet the factors influencing the presence and intensity of heterodyne frequencies, which arise from interactions between these fundamentals, remain poorly understood. We analyzed long‐term
Vera I. Fedorova, Ilya A. Volodin, Tatiana V. Ivkovich, Elena V. Volodina, Erich Hoyt, Olga A. Filatova   +5 more
wiley   +1 more source

Seasonal and Diel Acoustic Occurrence of Sei Whales in Oregon, USA

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The behavior, distribution, and life history of sei whales (Balaenoptera borealis) are largely unknown in the North Pacific. We analyzed data from three bottom‐mounted acoustic recorders deployed 25 (shelf; depth = 300 m), 45 (slope; depth = 630 m), and 65 (abyssal; depth = 2860 m) nautical miles off of Newport, Oregon, USA that recorded ...
Mariam Alsaid, Leigh G. Torres, Holger Klinck, Dimitri Ponirakis, Kathleen M. Stafford, Dawn R. Barlow   +5 more
wiley   +1 more source