Results 31 to 40 of about 130 (67)

Validación de hidrófonos de bajo costo para la detección acústica de los delfines nariz de botella (Tursiops truncatus truncatus) en un ambiente controlado

open access: yesMarine and Fishery Sciences
En los últimos años, la acústica pasiva se ha convertido en una herramienta eficaz para la detección de cetáceos, particularmente en especies difíciles de observar.
Agustina C. Macchi   +6 more
doaj   +1 more source

Abundance and Seasonal Dynamics of Guiana Dolphins (Sotalia guianensis) in Southern Brazilian Estuarine and Adjacent Coastal Waters

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Estimating population parameters is crucial for understanding species dynamics and assessing anthropogenic impacts, thereby supporting conservation efforts. We evaluate key population parameters—group structure, abundance and capture–recapture probabilities—of the Guiana dolphin in the Paranaguá Estuarine Complex and adjacent coastal waters ...
Stephane P. G. de Moura   +3 more
wiley   +1 more source

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

Posible impacto en la salud pública del encallamiento de cetáceos en Costa Rica

open access: yesTecnología en Marcha, 2013
El encallamiento de cetáceos se presenta cuando estos mamíferos llegan a la playa sin poder regresar al mar por sus propios medios. En Costa Rica, la mayoría de los casos se han registrado en las costas del Pacífico.
Olga Rivas-Solano, Claudia Zúñiga-Vega
doaj   +1 more source

First At‐Sea Identifications of Ginkgo‐Toothed Beaked Whale (Mesoplodon ginkgodens): Acoustics, Genetics, and Biological Observations Off Baja California, México

open access: yesMarine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT In 2024, an expedition was conducted off northwestern Baja California, México, to find and identify the beaked whale species that produced the BW43 echolocation pulse previously recorded in this area and elsewhere in the North Pacific. There were five Mesoplodon sightings and 21 BW43 acoustic detections on both a towed array and drifting pole ...
E. Elizabeth Henderson   +14 more
wiley   +1 more source

Demographic Parameters of Iberian Killer Whales Between 2011 and 2023

open access: yesMarine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT The Iberian killer whale subpopulation was assessed as critically endangered (CR) by the IUCN red list of threatened species based on the available information until 2011 on its low abundance, high newborn mortality, and dependency on the endangered Atlantic bluefin tuna.
Ruth Esteban   +32 more
wiley   +1 more source

Cetáceos del Pací­fico de Guatemala: Cincuenta años de historia
Guatemala's Pacific Cetaceans: Fifty Years of History

open access: yesCiencia, Tecnología y Salud, 2014
En Guatemala el estudio de los cetáceos inició en la década de los sesenta con los primeros registros de varamiento y captura incidental. Sin embargo, pocos trabajos cientí­ficos con datos de cetáceos han sido publicados.
Andrea A. Cabrera Arreola   +3 more
doaj  

Etnoecologia de pequenos cetáceos: interações entre a pesca artesanal e golfinhos no norte do estado do Rio de Janeiro, Brasil

open access: yesBiotemas, 2012
Estudos no norte do Rio de Janeiro indicam interações entre a pesca artesanal e os cetáceos, mas não existem pesquisas que abordem o conhecimento de pescadores sobre estes animais.
Gabrielle Amorim Rosa   +2 more
doaj   +1 more source

Mediterranean Gate Sanctuary for the Protection of Cetaceans

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 12, December 2025.
ABSTRACT The Alboran Sea, located at the western Mediterranean Sea, hosts a diverse and ecologically important cetacean community, including endangered species. However, current marine protected areas (MPAs) in the region are limited in scope, and existing conservation strategies are insufficient to address the wide‐ranging ecological needs of ...
Joan Giménez   +2 more
wiley   +1 more source

Análise das mordidas de tubarões-charuto, Isistius spp. (Squaliformes: Dalatiidae) em cetáceos (Mammalia: Cetacea) no litoral da Bahia, Nordeste do Brasil.

open access: yesBiotemas, 2007
Poucos estudos registraram sinais de mutilações em cetáceos no Brasil, especialmente aqueles provenientes de ataques de tubarões. O presente trabalho descreve interações entre tubarões-charuto, Isistius spp., e cetáceos através dos registros e análises ...
Luciano Raimundo Alardo Souto   +4 more
doaj  

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