Results 71 to 80 of about 6,977 (222)

Correcting Lipid Extraction Effects on Nitrogen Isotopic Values (δ15N) in Cetacean Skin

Marine Mammal Science, Volume 42, Issue 2, April 2026.
ABSTRACT Stable isotopes of carbon (δ13C) and nitrogen (δ15N) are widely used to study the feeding ecology of cetaceans, as they provide critical insights into diet and migratory behaviors. Lipids in tissues may bias the interpretation of δ13C. Because of this, lipids need to be extracted before measuring stable isotope ratios, but their removal may ...
Jory Cabrol, Ève Rioux, Richard Sears, Joanie Van De Walle, Cory J. D. Matthews, Véronique Lesage   +5 more
wiley   +1 more source

Ecosystem-based Management for Protected Species in the North Pacific Fisheries [PDF]

, 2011
In the North Pacific Ocean, an ecosystem-based fishery management approach has been adopted. A significant objective of this approach is to reduce interactions between fishery-related activities and protected species.
Heltzel, Jeannie M., Wilson, William J., Witherell, David   +2 more
core  

Mercury-induced micronuclei in skin fibroblasts of beluga whales [PDF]

Environmental Toxicology and Chemistry, 1998
AbstractBeluga whales (Delphinapterus leucas) inhabiting the St. Lawrence estuary are highly contaminated with environmental pollutants and have a high incidence of cancer. Environmental contaminants may be partly responsible for the high incidence of cancer observed in this population.
Julie M. Gauthier, Hélène Dubeau, Éric Rassart   +2 more
openaire   +1 more source

Proteomics-Based Investigation of Sexual Dimorphism in Swim Bladder Texture of Chu’s Croaker (Nibea coibor)

Foods
The swim bladder of Chu’s croaker (Nibea coibor) is an expensive food with high texture requirements. In this study, we found that male swim bladder had better toughness than female.
Haoran Zhang, Jiali Lin, Haoji Guo, Xianda He, Wanying Jiang, Lin Yan, Kuoqiu Yan, Xiaobo Wen, Fan Lin   +8 more
doaj   +1 more source

Beluga, Delphinapterus leucas, Group Sizes in Cook Inlet, Alaska, Based on Observer Counts and Aerial Video [PDF]

, 2000
Belugas, Delphinapterus leucas, groups were videotaped concurrent to observer counts during annual NMFS aerial surveys of Cook Inlet, Alaska, from 1994 to 2000. The videotapes provided permanent records of whale groups that could be examined and compared
Hobbs, Roderick C., Rugh , David J., Waite, Janice M.   +2 more
core  

From Participation to Management: Coconstructing Sustainable Practices in the Saint Lawrence Beluga Habitat

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT The Saint Lawrence Beluga population (Delphinapterus leucas), classified as an endangered species since 2014, continues to decline despite various recovery efforts. A growing concern is the impact of recreational boating on this population. Although the stress caused by boat noise and presence is well documented, the regulation and management ...
Maud Thermes, Irène Abi‐Zeid, Arnaud Sentis, Franck Taillandier, Nathalie Niquil   +4 more
wiley   +1 more source

On factors for separation of the stock of beluga whale Delphinapterus leucas in the Anadyr Gulf of the Bering Sea

Известия ТИНРО, 2014
New eco-ethological data on the Anadyr stock of beluga whales are presented based on 14-year (2000-2013) studies by methods of satellite tracking telemetry, multi-spectral aerial surveys and genetic analysis, as well as traditional and ecosystem-based ...
Denis I. Litovka, Ludmila N. Khitzova
doaj   +1 more source

Detection and Characterization of New Coronavirus in Bottlenose Dolphin, United States, 2019

Emerging Infectious Diseases, 2020
We characterized novel coronaviruses detected in US bottlenose dolphins (BdCoVs) with diarrhea. These viruses are closely related to the other 2 known cetacean coronaviruses, Hong Kong BdCoV and beluga whale CoV.
Leyi Wang, Carol Maddox, Karen Terio, Saraswathi Lanka, Richard Fredrickson, Brittany Novick, Celeste Parry, Abby McClain, Kyle Ross   +8 more
doaj   +1 more source

Modelling the effect of varying metabolic rate and cardiac output on estimated tissue and blood O2 and CO2 levels in an extreme deep‐diver, the goose‐beaked whale (Ziphius cavirostris)

Experimental Physiology, Volume 111, Issue 3, Page 765-785, 1 March 2026.
Abstract High‐resolution movement data from Cuvier's beaked, or goose‐beaked whale (Ziphius cavirostris, hereafter Ziphius, n = 8) tag deployments (4.1–19.2 days) were used to estimate blood and tissue O2 and CO2 levels. Acceleration and magnetometry data were used to estimate the locomotion cost (LC) from the relationship between activity and the O2 ...
Andreas Fahlman, Gregory S. Schorr, David A. Sweeney, Brenda K. Rone, Shannon N. Coates, Austin S. Allen, Lucia M. Martín López, Susan M. Jarvis, Erin A. Falcone   +8 more
wiley   +1 more source

Diet and feeding observations from an unusual beluga harvest in 2014 near Ulukhaktok, Northwest Territories, Canada

Arctic Science, 2018
The Eastern Beaufort Sea (EBS) beluga (Delphinapterus leucas) population are an important traditional food for the Inuit of the Inuvialuit Settlement Region, Northwest Territories (NT) Canada.
Lisa L. Loseto, Jasmine D. Brewster, Sonja K. Ostertag, Kathleen Snow, Shannon A. MacPhee, Darcy G. McNicholl, Emily S. Choy, Carolina Giraldo, Claire A. Hornby   +8 more
doaj   +1 more source