Results 51 to 60 of about 7,970 (263)

Validation of aerial photogrammetry methods to measure body size, condition and mass in small cetaceans

The Journal of Physiology, EarlyView.
Abstract figure legend Unoccupied aerial vehicle (UAV)‐based photogrammetry provides measurements equivalent to traditional hand measurements in bottlenose dolphins. Mass estimates derived from UAV measurements closely match the true body mass of live individuals.
Riccardo Cicciarella, Erik P. Willems, Benjamin Markham, Manuela R. Bizzozzero, Wayne Phillips, Simon J. Allen, Michael Krützen, Fredrik Christiansen   +7 more
wiley   +1 more source

Concentrations of Polychlorinated Biphenyls (PCB’s), Chlorinated Pesticides, and Heavy Metals and Other Elements in Tissues of Belugas, Delphinapterus leucas, from Cook Inlet [PDF]

, 2000
Tissues from Cook Inlet beluga whales, Delphinapterus leucas, that were collected as part of the Alaska Marine Mammal Tissue Archival Project were analyzed for polychlorinated biphenyls (PCB’s), chlorinated pesticides, and heavy metals and other elements.
Becker, Paul R., Demiralp, Rabia, Donais, Mary Kate, Epstein, Michael S., Krahn, Margaret M., Mackey, Elizabeth A., Muir , Derek C. G., Porter, Barbara J., Schantz , Michele M., Wise , Stephen A.   +9 more
core  

Reproductive Failure in UK Harbour Porpoises Phocoena phocoena : Legacy of Pollutant Exposure? [PDF]

, 2015
This research was supported by a Marie Curie International Outgoing Fellowship within the Seventh European Community Framework Programme (Project Cetacean-stressors, PIOF-GA-2010-276145 to PDJ and SM).
Barber, Jonathan L., Brownlow, Andrew, Davison, Nick, Deaville, Robert, Jepson, Paul D., Law, Robin J., Learmonth, Jennifer A., Murphy, Sinead, Penrose, Rod, Perkins, Matthew W., Pierce, Graham J., Read, Fiona L.   +11 more
core   +6 more sources

A Hybrid Framework for Stock Price Forecasting Using Metaheuristic Feature Selection Approaches and Transformer Models Enhanced by Temporal Embedding and Attention Pruning

Applied AI Letters, Volume 7, Issue 1, February 2026.
Workflow of the proposed hybrid BWO‐Transformer framework for stock price prediction. ABSTRACT Accurately predicting stock prices remains a major challenge in financial analytics due to the complexity and noise inherent in market data. Feature selection plays a critical role in improving both computational efficiency and predictive performance. In this
Amirhossein Malakouti Semnani, Sohrab Kordrostami, Amirhossein Refahi Sheikhani, Mohammad Hossein Moattar   +3 more
wiley   +1 more source

River-influenced beluga (Delphinapterus leucas) summer habitat use in western Hudson Bay, Canada

Arctic Science, 2023
River estuaries along western Hudson Bay, Canada, are important summer habitats for beluga whales (Delphinapterus leucus (Pallas, 1776)) and subject to increasing industrial development activities including vessel traffic. The feasibility of establishing
Emma L. Ausen, David G. Barber, Atreya Basu, Jens Ehn, David Walker, Laura Dalman, Marianne Marcoux   +6 more
doaj   +1 more source

Early Growth and Developmental Characteristics of Chinese Bahaba (Bahaba taipingensis)

Fishes
The Chinese bahaba (Bahaba taipingensis), belonging to the Sciaenidae family, is one of the largest croakers with a limited geographical distribution. It is a critically endangered fish species according to the IUCN and a protected animal in China.
Lin Yan, Yuanhao Ren, Tongxi Ai, Jianshe Shi, Junjie Wang, Kuoqiu Yan, Keji Jiang   +6 more
doaj   +1 more source

Fibroleiomyomas of the Tubular Genitalia in Female Beluga Whales [PDF]

Journal of Veterinary Diagnostic Investigation, 2000
Fibroleiomyomas of the tubular genitalia were diagnosed in 6 of 9 adult female beluga whales from the St. Lawrence estuary, Quebec, Canada. These tumors were located in the vagina (6 of 6), the cervix (2 of 6), and the uterus (1 of 6). Endogenous hormones or xeno-estrogens may be implicated in the occurrence of these tumors.
I, Mikaelian, P, Labelle, M, Doré, D, Martineau   +3 more
openaire   +2 more sources

Collaborative strategies for wildlife health: case studies from the Canadian North

The Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
The integration of Indigenous perspectives with a One Health approach enables culturally relevant and sustainable zoonotic disease management and surveillance, as demonstrated through 4 case studies that highlight how empowering communities and facilitating inclusive, respectful, and collaborative governance across diverse sectors and knowledge systems
Cody J. Malone, Douglas A. Clark, N. Jane Harms, Naima Jutha, Geraldine‐G. Gouin, Malik Awan, Lisa‐Marie Leclerc, Gabriel Antwi‐Boasiako, Emily J. Jenkins   +8 more
wiley   +1 more source

A Look at Important Marine Areas in the U.S. Beaufort and Chukchi Seas: Ecologically rich places to protect in the Arctic Ocean [PDF]

, 2016
Sound decision-making about the future of the U.S. Arctic Ocean must include an understanding of how its marine ecosystems function. Although all areas of the U.S. Chukchi and Beaufort seas contribute to ecological integrity, some are especially vital to

core  

Tumors in St. Lawrence Beluga Whales (Delphinapterus leucas) [PDF]

Veterinary Pathology, 1994
A population of 450–500 belugas ( Delphinapterus leucas) resides in the polluted estuary of the St. Lawrence River. Stranded carcasses of this endangered population were recovered and necropsied. High concentrations of organochlorines, heavy metals, and benzo-a-pyrene exposure were demonstrated in tissues of these whales.
S, De Guise, A, Lagacé, P, Béland
openaire   +2 more sources