Results 41 to 50 of about 5,840 (115)

First record of a white rough-toothed dolphin (Steno bredanensis) off West Africa including notes on rough-toothed dolphin surface behaviour [PDF]

, 2010
In June 2009, a white rough-toothed dolphin (Steno bredanensis) calf was photographed in a group of at least 50 dolphins in the southern Gulf of Guinea, 95 nauticol miles off the Gabon coast (01°45'S 007°29'E), West Africa. Reports of unusually pigmented
de Boer, M.N., Marijke N. de Boer, Boer, M.N., de   +2 more
core   +1 more source

Influence of environmental variability on the distribution and abundance of the pantropical spotted dolphin (Stenella attenuata) in the Mexican Central Pacific

Ciencias Marinas, 2022
The Mexican Central Pacific (MCP) has complex oceanographic dynamics, with a well-defined seasonal pattern and influence of interannual sea surface temperature anomalies. The present study investigated the relationship between the distribution/abundance
Evelyn R Díaz-Torres, Emigdio Marín-Enríquez, Antonio Corgos, Aramis Olivos-Ortiz, Christian D Ortega-Ortiz   +4 more
doaj   +1 more source

Exploring Progesterone Levels and Scaled Mass Index as Predictors of Pregnancy in Free‐Ranging Belugas

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Monitoring pregnancy rates can provide vital information regarding a population's viability and trajectory. This study combined drone‐based photogrammetry with biopsy darting to determine if the Scaled Mass Index (SMI) estimated from aerial images can be used to identify pregnant, free‐ranging St.
Meredith Sherrill, Limoilou‐Amélie Renaud, Nicholas Kellar, Robert Michaud, Véronique Lesage, Jonathan Verreault   +5 more
wiley   +1 more source

Feeding Ecology of Elusive Caribbean Killer Whales Inferred From Bayesian Stable Isotope Mixing Models and Whalers’ Ecological Knowledge

Frontiers in Marine Science, 2021
Investigating the feeding ecology of marine predators is critical for understanding their roles and functional importance in ecosystems. However, assessing the diet of large and wide-ranging predators can be challenging, particularly in the case of rare ...
Jeremy J. Kiszka, Michelle Caputo, Michelle Caputo, Paula Méndez-Fernandez, Russell Fielding   +4 more
doaj   +1 more source

A Dangerous Prey Fish? Brachyspira‐Rich Gastrointestinal Microbiota in Pompano Dolphinfish From Neritic and Deep Waters of the South China Sea

Ecology and Evolution, Volume 16, Issue 3, March 2026.
This study reveals an unexpectedly simplified, Brachyspira‐dominated gastrointestinal microbiota in pompano dolphinfish from both neritic and deep‐sea habitats of the South China Sea. Environmental DNA and functional analyses suggest these fish may acquire potential pathogens in anthropogenically influenced coastal waters and transport them offshore ...
Wentao Lu, Xinrui Long, Liang Fang, Hancheng Zhao, Yuezhong Wang, Xunyu Yang, Zhao Zheng, Yijie He, Bo Liang, Zonghang Zhang, Tao Chen, Jianqing Lin, Wenhua Liu   +12 more
wiley   +1 more source

Comparative Analysis of the Whistles of Three Oceanic Dolphins in the Comoros

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT The Shisiwani National Park (Anjouan, Comoros) is a cetacean biodiversity hotspot. However, the vocal behavior of marine mammals inhabiting the area has never been studied. In 2023, we conducted a 400‐nautical‐mile survey from a 5‐m motorboat to determine their presence.
Rihana Ali Ahmed, Anna Zanoli, Federica Scebba, Fouad Abdou Rabi, Youssouf Ben Ali Abdallah, Sara Ferri, Francesco Caruso, Cristina Giacoma, Livio Favaro   +8 more
wiley   +1 more source

STEM CELL GROWTH AND DIFFERENTIATION IN HYDRA ATTENUATA [PDF]

, 1979
The differentiation of nerve cells and nematocytes from interstitial stem cells in Hydra has been investigated under conditions of changing stem cell density.
Sproull, Frederick, David, Charles N.
core   +3 more sources

Predictive modeling of spinner dolphin (Stenella longirostris) resting habitat in the main Hawaiian Islands [PDF]

, 2012
Predictive habitat models can provide critical information that is necessary in many conservation applications. Using Maximum Entropy modeling, we characterized habitat relationships and generated spatial predictions of spinner dolphin (Stenella ...
Pack, A.A., Johnston, D.W., Mobley, J.R., Yin, S., Tyne, J., Deakos, M.H., Rickards, S.H., Chapla Hill, M., Thorne, L.H., Baird, R.W., Urban, D.L., Bejder, L.   +11 more
core  

Melon‐Headed Whale (Peponocephala electra) Occurrence in the Equatorial Mid‐Atlantic Ocean With Descriptions of Their Whistles

Marine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT Acoustic studies for any cetacean species in tropical Atlantic Ocean waters are scarce, especially for oceanic dolphins, such as the melon‐headed whale, Peponocephala electra. Here we describe a unique visual and acoustic record for this species, filling an information gap about the acoustic patterns of these delphinids in this part of the ...
Diana C. Freitas, Manuela Bassoi, Isis V. B. Da Silva, Luane S. Ferreira, Izabela C. Laurentino, Juliana R. Moron, Renata S. Sousa‐Lima   +6 more
wiley   +1 more source

Acoustic signal alteration in pantropical spotted and spinner dolphins exposed to seismic airgun noise

Frontiers in Conservation Science
IntroductionHuman activities are significantly altering the marine soundscape. Seismic exploration generates high-intensity sounds that propagate over large spatial and temporal scales and can adversely affect cetaceans, which rely on sound for ...
Yasmin Viana, Yasmin Viana, Natália Rodrigues-Soares, Natália Rodrigues-Soares, Raphael B. Machado, Raphael B. Machado, Thiago Orion Simões Amorim, Thiago Orion Simões Amorim, João Pedro Mura, João Pedro Mura, Renata Santoro Sousa-Lima, Larissa Kelmer de Lima Kascher, José Luiz A. Pizzorno, Andrea Carlina Jesulich, Andrea Carlina Jesulich, Artur Andriolo, Artur Andriolo   +16 more
doaj   +1 more source