Results 51 to 60 of about 1,287 (160)
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT Human interactions, specifically fishery entanglements (FI) and vessel strikes (VI), threaten marine mammals, including the Barataria Bay Estuarine System (BBE) Stock of common bottlenose dolphins (Tursiops truncatus). We reviewed whole‐body photographs to estimate the prevalence of sublethal entanglement and vessel strike scars for 227 ...
Eric S. Zolman +7 more
wiley +1 more source
Using Aerial Photogrammetry to Estimate Body Condition and Assess Sexual Dimorphism in Narwhals
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT The Arctic is warming rapidly, impacting ice‐dependent species and communities that rely on them for resources. Body condition indices (BCI) are widely used to assess individual health within populations. We adapted the methodology to improve accessibility for estimating narwhal body condition from drone footage, using body length, body width,
Kirsten J. Désorcy +4 more
wiley +1 more source
Fishing activity in Northern Rio de Janeiro State (Brazil) and its relation with small cetaceans
Brazilian Archives of Biology and Technology, 1998 Research on fishing activity at Atafona village, in Northern Rio de Janeiro, Brazil (21°35'S), was carried out between 1987-96 for the purpose of relating it to the accidental capture of small cetaceans and of estimating the relationship between fishing ...
Ana Paula Madeira Di Beneditto +2 more
doaj +1 more source
Fatal asphyxia due to laryngeal displacement by large-sized prey in a Guiana dolphin (Sotalia guianensis), Brazil [PDF]
Ciência Rural, 2020 : The Guiana dolphin (Sotalia guianensis) is a small odontocete distributed from Santa Catarina state, Brazil, to Honduras. Although it is currently considered “near threatened” by the International Union for Conservation of Nature, considerable ...
Daniela Bueno Mariani +6 more
doaj +1 more source
Ecologia alimentar e espacial da toninha (pontoporia blainvillei) e do boto-cinza (Sotalia guianensis) na Baía da Babitonga, Sul do Brasil [PDF]
, 2015 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Ecologia, Florianópolis, 2015A toninha (Pontoporia blainvillei) é um pequeno golfinho endêmico do Oceano Atlântico Sul Ocidental.
Paitach, Renan Lopes
core
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT This study evaluated reproductive parameters and growth patterns of male and female franciscana dolphins, Pontoporia blainvillei, in Santa Catarina State, southern Brazil, between Franciscana Management Area (FMA) II and III. We analyzed ovarian and testicular characteristics, counted the tooth growth layer groups, and constructed growth ...
E. Cordeiro +5 more
wiley +1 more source
Carcass Decomposition Conceals the True Magnitude of Small Cetacean Bycatch in Southern Brazil
Marine Mammal Science, Volume 42, Issue 4, October 2026.ABSTRACT Bycatch in fisheries is a primary threat to small cetaceans, but its true magnitude is often underestimated, particularly in regions with less thorough stranding response networks. Advanced decomposition of stranded carcasses often obscures evidence of fisheries interaction, masking the actual rate of anthropogenic mortality. Here, we quantify
Alícia Carla Santos +3 more
wiley +1 more source
Note on the Cetacean Sotalia borneénsis
Proceedings of the Zoological Society of London, 1909 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +3 more sources
Posterior Respiratory Apparatus of Inia geoffrensis and Sotalia fluviatilis: Structure and Ultrastructure [PDF]
International Journal of Morphology, 2017 SUMMARY: This study aimed to characterize the structures of the posterior respiratory system of two species of river dolphins: Inia geoffrensis and Sotalia fluviatilis. The respiratory tract of both species was evaluated using macro and microscopic techniques.
Santos Júnior, Luzivaldo Castro dos +5 more
openaire +2 more sources
Tourism, human–wildlife interactions, and wildlife trade in the globalizing Amazon
Conservation Science and Practice, Volume 8, Issue 8, August 2026.Tourism in the globalizing Peruvian Amazon contributes to harmful human–wildlife interactions and the wildlife trade, with tourists participating in activities such as handling wildlife, taking selfies with animals, purchasing live animals, and wild meat consumption.
Christian J. Rivera +7 more
wiley +1 more source