Results 71 to 80 of about 42,030 (141)

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

Informing the in-water humpback whale (Megaptera novaeangliae) interaction management program in the Ningaloo Marine Park, Western Australia

Frontiers in Conservation Science
IntroductionWhale and dolphin watching tourism continues to expand globally, generating substantial economic benefits for coastal communities. However, ensuring that tourism activities remain safe, sustainable, and do not adversely affect cetacean ...
Julian A. Tyne, Holly Raudino, Lyn Irvine, Lyn Irvine, Chandra Salgado Kent, Chandra Salgado Kent, Kelly Waples   +6 more
doaj   +1 more source

Hexachlorobenzene exerts genotoxic effects in a humpback whale cell line under stable exposure conditions [PDF]

, 2019
Humpback whales, like other polar wildlife, accumulate persistent organic pollutants. In Southern hemisphere populations, hexachlorobenzene (HCB) dominates the contaminant profiles.
Suter, Marc J.-F., Bengtson Nash, Susan, Nash, Susan M. Bengtson, Burkard, Michael, Suter, Marc J-F, Maner, Jenny, Cassano, Juan Carlos, Nash, Susan M Bengtson, Cassano, Juan C., Schirmer, Kristin   +9 more
core   +1 more source

Whale, Whale, Everywhere: Increasing Abundance of Western South Atlantic Humpback Whales (Megaptera novaeangliae) in Their Wintering Grounds.

PLoS ONE, 2016
The western South Atlantic (WSA) humpback whale population inhabits the coast of Brazil during the breeding and calving season in winter and spring. This population was depleted to near extinction by whaling in the mid-twentieth century.
Guilherme A Bortolotto, Daniel Danilewicz, Artur Andriolo, Eduardo R Secchi, Alexandre N Zerbini   +4 more
doaj   +1 more source

Quantifying Ship Strike Risk to Breeding Whales in a Multiple-Use Marine Park: The Great Barrier Reef

Frontiers in Marine Science, 2020
Spatial risk assessments are an effective management tool used in multiple-use marine parks to balance the needs for conservation of natural properties and to provide for varying socio-economic demands for development. The multiple-use Great Barrier Reef
Joshua N. Smith, Natalie Kelly, Simon Childerhouse, Jessica V. Redfern, Thomas J. Moore, David Peel   +5 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

A Note on Suckling Behavior and Laterality in Nursing Humpback Whale Calves from Underwater Observations

Animals, 2017
We investigated nursing behavior on the Hawaiian breeding grounds for first year humpback whale (Megaptera novaeangliae) calves. We observed and video-documented underwater events with nursing behavior from five different whale groups.
Ann M. Zoidis, Kate S. Lomac-MacNair
doaj   +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

Communicating amidst the noise: modeling the aggregate influence of ambient and vessel noise on baleen whale communication space in a national marine sanctuary

Endangered Species Research, 2018
Anthropogenic noise negatively impacts many species. One of the more insidious effects of elevated noise levels is the reduction in area over which animals are able to acoustically communicate, often termed communication masking.
Cholewiak, D, Clark, CW, Ponirakis, D, Frankel, A, Hatch, LT, Risch, D, Stanistreet, JE, Thompson, M, Vu, E, Van Parijs, SM   +9 more
doaj   +1 more source