Results 51 to 60 of about 5,840 (115)

A Detailed Characterization of the Whistle Repertoire of Fraser's Dolphins (Lagenodelphis hosei) From the Lesser Antilles

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Fraser's dolphin (Lagenodelphis hosei) remains poorly studied due to its elusive behavior, rarity, and preference for deep offshore habitats. While dolphins use frequency‐modulated whistles for communication, detailed acoustic descriptions exist for only a few species.
Laura J. May‐Collado, Maia Austin, Lucas Bernier, Jeffrey Bernus, Beth Brady, Lauren Viegas, Eric A. Ramos   +6 more
wiley   +1 more source

Seasonal and Multidecadal Changes in the Distribution of Small Cetaceans Inhabiting the Western North Pacific Under a Changing Ocean Environment, Inferred From Species Distribution Models

Diversity and Distributions, Volume 31, Issue 12, December 2025.
ABSTRACT Aim For several decades, substantial efforts have monitored cetacean distribution and abundance in the western North Pacific. Large‐scale visual‐based line transect surveys have been conducted since the early 1980s, covering almost the entire western North Pacific.
Yu Kanaji, Shiho Furumaki, Hiroko Sasaki
wiley   +1 more source

Microsatellites en génétique des cétacés : application à l’étude des populations de dauphins bleu-et-blanc (Stenella cœruleoalba) de Méditerranée occidentale et de la zone Atlantique proche [PDF]

, 2006
De nombreuses espèces de cétacés sont aujourd’hui menacées. La connaissance de leur variabilité génétique intraspécifique sera utile pour leur conservation à long terme. Les microsatellites, marqueurs moléculaires polymorphes de type répété, permettent d’
Bourret, Vincent
core  

Captive dolphins face higher levels of microplastic pollution than wild individuals

Communications Earth & Environment
Traditional research on microplastics in cetaceans has largely overlooked the extraction methods and their occurrence in multi-tissues. Here we present a reliable framework for extracting microplastics from multi-tissues of cetaceans, achieved through ...
Kexin Song, Pingjing Li, Yuhuan Zhai, Kai Liu, Shuang Liu, Haiyan Sun, Dongmei Wang, Songhai Li   +7 more
doaj   +1 more source

How is the third jaw joint in whales different? Diverse modes of articulation between the jaws of whales

Journal of Anatomy, Volume 247, Issue 6, Page 1224-1240, December 2025.
This study conducts the first comprehensive morphological investigation of the mandibular symphysis in whales. Using gross anatomical observation and CT cross‐sectional data, we describe diverse joint morphologies across 74 extant and fossil cetacean taxa. Toothed whales exhibit unfused, partially fused, or fully fused symphyses.
Rebecca J. Strauch, Nicholas D. Pyenson, Carlos Mauricio Peredo   +2 more
wiley   +1 more source

Distribution of Interstitial Cells and Differentiating Nematocytes in Nests in Hydra attenuata [PDF]

, 1974
We have used tissue maceration to quantitate interstitial cell nests in Hydra attenuata and thiolacetic acid-lead nitrate staining to quantitate differentiating nematocytes. Most I-cell nests have 2, 4, 8, or 16 cells.
Challoner, Diane, Charles N. David, David, Charles N., Diane Challoner   +3 more
core   +1 more source

Temporal and Spatial Variability of Pantropical Spotted Dolphin (Stenella attenuata) Group Size in the Eastern Tropical Pacific [PDF]

, 2022
Tuna purse seine vessels fishing for Thunnus albacares was a cause for significant incidental bycatch of dolphins and subsequent depletion of their populations in the Eastern Tropical Pacific (ETP) in the 1960s and 1970s, until the establishment of the ...
Balaji, Pooja
core   +1 more source

The larger the cetacean, the more stationary their sleep? Thermoregulatory constraints on the sleep behaviour of captive cetaceans

Journal of Zoology, Volume 327, Issue 4, Page 376-385, December 2025.
Cetaceans face thermal challenges when sleeping underwater. Our study found that smaller body size correlated with more swim sleep and less stationary sleep, while the opposite was true for larger cetaceans. Additionally, bottlenose dolphins increased swim sleep at lower ambient temperatures, suggesting a sleep strategy influenced by body size and ...
K. Aota, Y. Sekiguchi, D. M. Kikuchi
wiley   +1 more source

Cetacean Habitat Use and Occurrence in Fort-de-France Bay (Martinique)

Animals
While coastal species have been widely studied, active port areas in tropical island regions with intense maritime traffic remain critical, but habitats for cetaceans within the Caribbean have not been thoroughly studied.
Coline Violo, Anatole Gros-Martial, Célia Ortolé, Marion Poupard, Morjane Safi, Benjamin de Montgolfier   +5 more
doaj   +1 more source

Cetacean records along São Paulo state coast, Southeastern Brazil

Brazilian Journal of Oceanography, 2010
The São Paulo state (SP) coast (23º18'S, 44º42'W; 25º14'S, 48º01'W) is of approximately 600 km in length, bordering the Western Atlantic Ocean, in southeastern Brazil.
Marcos César de Oliveira Santos, Salvatore Siciliano, André Fabiano de Castro Vicente, Fernando Siqueira Alvarenga, Émerson Zampirolli, Shirley Pacheco de Souza, Andréa Maranho   +6 more
doaj   +1 more source