Results 91 to 100 of about 2,162 (213)

Investigating Harvest and Vessel Traffic Exposure as Drivers of Social Group Characteristics in Canadian Beluga ( Delphinapterus leucas ) Populations

Marine Mammal Science, Volume 41, Issue 4, October 2025.
ABSTRACT Assessing variation in social behaviors of group‐living animals may provide insight into the impacts of population stressors. Using very high resolution (VHR) satellite imagery acquired over 3 years, we compared social group size and composition, as well as spatial and social cohesion in three beluga ( Delphinapterus leucas ) populations that ...
Jordan B. Stewart, John Iacozza, Lisa Loseto, Cortney A. Watt   +3 more
wiley   +1 more source

Feeding associations between Guiana dolphins, Sotalia guianensis (Van Bénèden, 1864) and seabirds in the Lagamar estuary, Brazil Associações de alimentação entre o boto-cinza (Sotalia guianensis) (Van Bénèden, 1864) e aves marinhas no estuário do Lagamar, Brasil

Brazilian Journal of Biology, 2010
The main objective of the present study was to describe the characteristics regarding interactions between Guiana dolphins, Sotalia guianensis and seabirds in feeding associations in two distinct areas of the Lagamar estuary, Brazil.
MCO. Santos, JEF. Oshima, ES. Pacífico, E. Silva   +3 more
doaj   +1 more source

Skin diseases in cetaceans. Scientific Committee document SC/60/DW8, International Whaling Commission, June 2008, Santiago, Chile [PDF]

, 2008
Micro-organisms that are known or suspected to cause skin diseases in cetaceans are briefly reviewed. Viruses belonging to four families i.e. Caliciviridae, Herpesviridae, Papillomaviridae and Poxviridae were detected by electron microscopy, histology ...
Avila, I.C., Castro, C., Crespo, E., de Oliveira Santos, M.C., Echegaray, M., Flach, L., Fraijia, N., Félix, F., Reyes, J.C., Sanino, G.P., Siciliano, S., Van Bressem, M.-F., Van Waerebeek, K., Viddi, F.   +13 more
core  

A computational framework to characterize and compare the tonal repertoires of toothed whales

Methods in Ecology and Evolution, Volume 16, Issue 7, Page 1350-1368, July 2025.
Abstract Toothed whales, despite being one of the most acoustically specialized lineages of vertebrates, lack detailed vocal repertoire characterizations comparable to those of songbirds and primates. Current descriptions often lack standardization, limiting interspecies and intraspecies comparisons critical for understanding the contribution of ...
Maia Austin, Julie N. Oswald, Manali Rege‐Colt, Emma Gagne, Eric Angel Ramos, Joëlle De Weerdt, Nicola Ransome, Laura J. May‐Collado   +7 more
wiley   +1 more source

Living Under Pressure: Suitable Areas for an Endangered Coastal Dolphin Overlap With Intense Human Activities

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 6, June 2025.
ABSTRACT Marine ecosystems, especially coastal ones, are experiencing increased pressure from human activities. The first step to develop effective and appropriate management strategies is to understand the underlying processes of species distribution.
Tomaz Cezimbra, Mariana Leene de Santana Barros Leal, Giovana Alves Parpinelli, Daniel Anibolete, Guilherme Maricato, Israel S. Maciel, Liliane Lodi, Rodrigo H. Tardin   +7 more
wiley   +1 more source

Molecular Identification of Delphinids and Finless Porpoise (Cetacea) from the Arabian Sea and Bay of Bengal [PDF]

, 2008
The exact number of extant delphinid species from seas around India is still debated and the lack of adequate field keys and reliable inventory has resulted in misidentification of several species. As a part of a project to develop a molecular taxonomy
Afsal, V V, Anoop, A K, Anoop, B, Jayasankar, P, Krishnakumar, P K, Kumaran, P L, Reynold, P   +6 more
core  

A Non‐Parametric Estimation Method of the Population Size in Capture‐Recapture Experiments With Right Censored Data

Environmetrics, Volume 36, Issue 3, April 2025.
ABSTRACT We present a new non‐parametric approach for estimating the total number of animals or species when we only have information on the number of animals or species that have been observed once, twice, …$$ \dots $$, and the number of animals or species that have been observed r$$ r $$ and more than r$$ r $$ times.
Anabel Blasco‐Moreno, Pedro Puig
wiley   +1 more source

PESCA INTERATIVA ENTRE GOLFINHO Sotalia fluviatilis guianensis E A COMUNIDADE PESQUEIRA DA REGIÃO DE CANANÉIA

Boletim do Instituto de Pesca, 2018
Ao longo de oito anos foram realizadas observações do comportamento de pesca do golfinho Sotalia fluviatilis guianensis na região do complexo estuarino-lagunar de Cananéia, sul do Estado de São Paulo.
Emygdio Leite de Araujo MONTEIRO-FILHO
doaj  

Understanding causes of morbidity and mortality in Southern Hemisphere small Odontoceti: a scoping review

Mammal Review, Volume 55, Issue 2, April 2025.
This review identifies key causes of morbidity and mortality in Southern Hemisphere small Odontoceti, highlighting significant anthropogenic threats and the enhanced need for conservation strategies. Key findings include high rates of entanglements and a diverse range of infectious pathogens. Abstract Marine mammals serve as sentinels for environmental
Rebecca Souter, Anne‐Lise Chaber, Luciana Möller, Lucy Woolford   +3 more
wiley   +1 more source

Group size and composition of Guiana dolphins (Sotalia guianensis) (Van Bénèden, 1864) in the Paranaguá Estuarine Complex, Brazil

Brazilian Journal of Biology
The aim of the present study was to describe the characteristics of Guiana dolphins (S. guianensis) group size and composition in the Paranaguá Estuarine Complex (25° 15' -25° 36' S and 48° 02'-48° 45' W), Paraná State, as well as to verify the existence
MCO. Santos, JEF. Oshima, ES. Pacífico, E. Silva   +3 more
doaj   +1 more source