Results 61 to 70 of about 1,746 (173)

Variation in the Tyrosinase Gene Associated with a White Humpback Whale (Megaptera novaeangliae) [PDF]

Journal of Heredity, 2011
Tyrosinase-negative oculocutaneous albinism (OCA1A) is characterized by lifelong white hair and skin, a phenotype that has been described in most mammalian species worldwide. Tyrosinase is the key enzyme in melanin biosynthesis, and mutations in the tyrosinase gene result in OCA1A.
Andrea M, Polanowski, Sarah M, Robinson-Laverick, David, Paton, Simon N, Jarman   +3 more
openaire   +2 more sources

Disrupting the herd: Recreational boating alters group dispersion within beluga whale herds

The Journal of Wildlife Management, Volume 90, Issue 6, August 2026.
Recreational boating in beluga habitat remains poorly documented. Using land‐based observations in the Saguenay Fjord (Quebec, Canada), we show that increasing recreational boat numbers are associated with a higher probability of changes in beluga herd dispersion, suggesting behavioral disturbance and the need to integrate recreational boating into ...
Camille Kowalski, Angélique Dupuch, Jean‐François Sénécal, Jérôme Dupras, Clément Chion   +4 more
wiley   +1 more source

Temperature and Ultraviolet Radiation Influence the Skin Microbiome of Humpback Whales

Molecular Ecology, Volume 35, Issue 15, August 2026.
ABSTRACT The skin microbiome of humpback whales harbours diverse microbial communities that play a crucial role in host skin protection and environmental interaction. However, studies on cetacean skin microbiomes in the Southern Hemisphere focus on feeding grounds, with limited information on microbiome dynamics at breeding grounds and during migration
Aída I. Murillo‐Herrera, Luis E. Eguiarte, Eliana Paola Acuña Gómez, Cristina Castro, Jorge Acevedo, Juliana Castrillon, Lautaro Oyarzún‐Galaz, Pedro Valenzuela, Anelio Aguayo‐Lobo, Luis A. Pastene, Valeria Souza   +10 more
wiley   +1 more source

Ecological implications and lessons from high pathogenicity avian influenza H5N1 2.3.4.4b in Antarctica

Ecological Solutions and Evidence, Volume 7, Issue 3, July–September 2026.
HPAI H5N1 was confirmed in 22 South Polar Skuas and one Kelp Gull on Dismal and Horseshoe Islands, Marguerite Bay, Western Antarctic Peninsula in early 2025, with high mortalities consistent with global trends. Rapid antigen tests showed 90% agreement with rRT‐PCR, supporting their utility for early detection in remote environments.
Simon B. Z. Gorta, Victor Neira, Michelle Wille, David Gajardo, Atilla Yılmaz, Özgün Oktar, Burcu Özsoy, Çağan H. Şekercioğlu   +7 more
wiley   +1 more source

An Alternative Approach to Studying Humpback Whale Song Changes Over Time Using Occupancy Models

Marine Mammal Science, Volume 42, Issue 4, October 2026.
Franny Oppenheimer, Therese Donovan, James Hines, Kristin Rasmussen, Laura J. May‐Collado   +4 more
wiley   +1 more source

Dynamic Migratory Strategies and Foraging Habitats of Southern Right Whales Revealed by Satellite Telemetry

Ecology and Evolution, Volume 16, Issue 7, July 2026.
Satellite‐linked tags on 34 southern right whales revealed basin‐scale movements and foraging concentrated in the ACC, Crozet Islands, Benguela system, and the highly variable seasonal ice zone. Environmental modelling revealed environmental drivers behind foraging decisions, and identified key ecosystems.
Matthew Germishuizen, Alexandre N. Zerbini, Amy Kennedy, Marcello Vichi, Christopher Wilkinson, Els Vermeulen   +5 more
wiley   +1 more source

First documented movement of a humpback whale between the Cape Verde Islands and West Greenland

Ecology and Evolution
The endangered population of humpback whales (Megaptera novaeangliae) breeding and calving off the Cape Verde Islands (CVI) are known to migrate to feeding areas located along the eastern margin of the North Atlantic Ocean (Iceland, and Norway). Here, we
Valerie Chosson, Virginie Wyss, Beatrice Jann, Frederick W. Wenzel, Guðjón Már Sigurðsson, Malene Simon, Rikke Guldborg Hansen, Lindsey S. Jones   +7 more
doaj   +1 more source

Beyond Rare: Documenting Albino‐Like Phenotypes as a Recurring Trait in the Juan Fernandez Fur Seal

Marine Mammal Science, Volume 42, Issue 4, October 2026.
Constanza Toro‐Valdivieso, Renato Borras‐Chavez, Víctor Castillo‐González, Luciano Hiriart‐Bertrand, Michael E. Goebel, Barbara Blacklaws   +5 more
wiley   +1 more source

Species‐Specific qPCR Assays for Detecting Blue, Fin, and Sei Whales (Balaenoptera spp.) From Offshore Environmental DNA Samples

Environmental DNA, Volume 8, Issue 4, July‐August 2026.
Species‐specific eDNA qPCR assays were developed and validated for blue, fin, and sei whales and were tested alongside visual surveys in the northwest Atlantic. Results show strong concordance for fin whales, demonstrating eDNA's value for enhancing offshore monitoring of at‐risk large whales.
Chloe V. Robinson, Emma J. Laqua, Katherine Gavrilchuk, David Gaspard, Amy Migneault, Julien Delarue, Bertrand Charry   +6 more
wiley   +1 more source

Quantitative PCR assays to detect whales, rockfish, and common murre environmental DNA in marine water samples of the Northeastern Pacific.

PLoS ONE, 2020
Monitoring aquatic species by identification of environmental DNA (eDNA) is becoming more common. To obtain quantitative eDNA datasets for individual species, organism-specific quantitative PCR (qPCR) assays are required.
Elizabeth A Andruszkiewicz, Kevan M Yamahara, Collin J Closek, Alexandria B Boehm   +3 more
doaj   +1 more source