Results 71 to 80 of about 2,588 (188)

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

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

Comparing Drone and Vessel‐Based Imaging to Quantify Epibiont Coverage on Humpback Whales

Marine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Cetacean epibionts offer noninvasive insights into host health, physiology, and spatial ecology, yet quantitative assessments in wild populations remain scarce. Although vessel‐based observations may be limited by field of view and analyst input, unoccupied aerial vehicles (UAVs; drones) are increasingly used to monitor cetacean health indices,
Isabel A. R. Taylor, Ticiana Fettermann, Barry McGovern, David S. Schoeman, Adrian B. McCallum, Stephanie H. Stack   +5 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

Stable Isotope Composition of Skin Layers Confirms Trophic Differentiation of Baird's and Sato's Beaked Whales (Berardius spp.) in the Western North Pacific

Rapid Communications in Mass Spectrometry, Volume 40, Issue 17, 15 September 2026.
ABSTRACT Rationale Closely related whale species can appear similar yet occupy distinct ecological niches. Sato's beaked whale (Berardius minimus) was only recently recognized as a separate species and was previously grouped with Baird's beaked whale (Berardius bairdii), limiting our understanding of their ecological differences.
Olga A. Filatova, Ivan D. Fedutin, Igor G. Bobyr, Olga V. Titova, Mikhail O. Ragimov, Erich Hoyt, Sergey M. Tsurikov, Alexei V. Tiunov   +7 more
wiley   +1 more source

DNA from dives: Species detection of humpback whales (Megaptera novaeangliae) from flukeprint eDNA

Environmental DNA
Northern British Columbia has been identified as an important habitat for several coastal cetacean species, including humpback whales (Megaptera novaeangliae).
Chloe V. Robinson, Karina Dracott, Robin D. Glover, Adam Warner, Amy Migneault   +4 more
doaj   +1 more source

Design of a Three‐Phase PWM Rectifier Based on Improved Whale Optimization Algorithm Optimized Fuzzy Control

Advanced Control for Applications, Volume 8, Issue 3, September 2026.
Schematic diagram of the whale optimization algorithm (WOA)–optimized fuzzy proportional–integral–derivative (PID) controller. The WOA is employed to dynamically tune the scaling factor expressions and fuzzy control parameters (a(e)a(e), a(ec)a(ec), βpβp, βiβi), as well as the initial PID gains (kp0kp0, ki0ki0), based on the error (ee) and its ...
Xiaosong Tian, Meiguang Jiang, Congguo Jiang, Guangya Liu, Jun Zhang, Xiangwen Lv, Weijiang Yang, Ruoyu Yang   +7 more
wiley   +1 more source

Deep breath out: molecular survey of selected pathogens in blow and skin biopsies from North Atlantic cetaceans

BMC Veterinary Research
Background Cetacean morbillivirus, herpesvirus, avian influenza virus (AIV) and Brucella spp. have been linked to numerous cetacean strandings in the Northeast (NE) Atlantic.
Helena Costa, Per Ramstedt, Myrthe Bergsma, Eve Jourdain, Zoë Morange, Pierre Blévin, Charla J. Basran, Marianne H. Rasmussen, Terence P. Dawson, Harriet Y. Dawson, Seán A. O’Callaghan, Prabhugouda Siriyappagouder, Jorge M. O. Fernandes, Audun H. Rikardsen, Courtney A. Waugh   +14 more
doaj   +1 more source

A whale apart: further evidence for genetic isolation of Arabian Sea humpback whales from other recognised subspecies

Frontiers in Marine Science
Genetic studies have differentiated three subspecies of humpback whales: Megaptera novaeangliae novaeangliae in the North Atlantic, M. n. australis in the Southern Hemisphere and M. n. kuzira in the North Pacific.
A. Rita Amaral, Stephen J. Gaughran, Stephen J. Gaughran, Melina I. Giakoumis, Andrew Willson, Gianna Minton, Robert Baldwin, Maia Sarrouf Willson, Suaad Al Harthi, Aida Al Jabri, Tim Collins, Koen Van Waerebeek, Koen Van Waerebeek, Howard C. Rosenbaum   +13 more
doaj   +1 more source

Killer Whales (Orcinus orca) in the Indo‐Pacific: A Review of Their Distribution, Population Structure, and Ecology

Mammal Review, Volume 56, Issue 3, September 2026.
This review synthesises knowledge on killer whales across the Indo‐Pacific through the integration of published studies and collaboration. It shows that variation in killer whale occurrence, diet, and fisheries interactions is shaped by environmental heterogeneity and uneven research effort and highlights knowledge gaps with implications for ...
Paola Lacetera, Paul Tixier, Isabella M. Reeves, Maeva Terrapon, Aaron Barnes, Christophe Guinet, Simon H. Elwen, John Totterdell, Jennah Tucker, Paul Cross, Georgia K. Bisset, John Dickie, John P. Y. Arnould   +12 more
wiley   +1 more source