Results 51 to 60 of about 1,600 (195)

Multi‐Platform Deployments of Low‐Cost Devices for Cetacean Passive Acoustic Monitoring

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Recent advances in affordable, user‐friendly devices offer new opportunities to overcome cost constraints of underwater passive acoustic monitoring (PAM) and expand acoustic data collection. In this study, we deployed low‐cost acoustic recorders and underwater cameras across a range of platforms in the Western Mediterranean, including fishing gear ...
Greta Jankauskaite   +8 more
wiley   +1 more source

Delphinidae Gray 1821

open access: yes, 2014
Family DELPHINIDAE (OCEAN DOLPHINS) * Smallto medium-sized dolphins, usually with relatively long beaks, slender bodies, and prominent dorsal fins, and flukes with a distinct median notch; conical, pointed teeth, with reduced dentition in some species. • 140-980 cm • Cosmopolitan inhabitant all the world’s oceans and some river systems.
Russell A. Mittermeier, Don E. Wilson
openaire   +2 more sources

Estimativa populacional e área de vida do boto-ciza, Sotalia guianensis (Cetacea, Delphinidae), na Baía da Babitonga, Santa Catarina, Brasil [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas. Programa de Pós-Graduação em EcologiaCetáceos são vertebrados de vida longa, situados nos níveis mais altos das cadeias tróficas marinhas, com baixo índice ...
Schulze, Beatriz
core  

Figure 1 in Vertebral osteology in Delphinidae (Cetacea)

open access: yes, 2004
Figure 1. Consensus phylogeny of the Family Delphinidae based on the work of Mead (1975), de Muizon (1988) and Perrin (1989). The Delphinapteridae serves as the outgroup.Published as part of Buchholtz, Emily A.
Buchholtz, Emily A., Schur, Stephanie A.
core   +1 more source

First Non‐Invasive Monitoring of Fecal Steroids in Greater Caribbean Manatees (Trichechus manatus manatus)

open access: yesZoo Biology, EarlyView.
This study established the first fecal hormonal reference values (P4/E2) for the Greater Caribbean manatee. Using non‐invasive ELISA, the authors found no significant differences between mature and immature females, highlighting that long‐term monitoring and ultrasounds are essential to fully understand their complex reproductive cycles.
Vanessa Bermúdez‐Cardona   +3 more
wiley   +1 more source

The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?

open access: yesMarine Ecology, EarlyView.
ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie   +2 more
wiley   +1 more source

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

open access: yesThe Anatomical Record, Volume 309, Issue 7, Page 1797-1820, July 2026.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc   +26 more
wiley   +1 more source

Occurrence and Whistle Characteristics of Small Odontocetes in Two Coastal Regions of the Sea of Japan

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT This study investigated the occurrence and whistle characteristics of small odontocetes in Wakasa Bay and Aso Bay, located in the coastal waters of the Sea of Japan, where ecological data are limited. Passive acoustic monitoring using A‐tag and SoundTrap was conducted from 2022 to 2024, with detections on 8.8% and 12.4% of monitoring days at ...
Satoko S. Kimura   +2 more
wiley   +1 more source

First Record of a Presumed Risso's Dolphin Calf Associated With a Bottlenose Dolphin in the Mediterranean Sea

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
During a survey in June 2025, researchers recorded a presumed Risso's dolphin calf swimming in echelon position within a bottlenose dolphin group off the Catalan coast (north‐eastern Iberian Peninsula). Two possible interpretations are discussed: (1) it may represent the first hybrid calf reported in the Mediterranean, or (2) it may be the first ...
Natàlia Amigó   +3 more
wiley   +1 more source

Seven new dolphin mitochondrial genomes and a time-calibrated phylogeny of whales

open access: yesBMC Evolutionary Biology, 2009
Background The phylogeny of Cetacea (whales) is not fully resolved with substantial support. The ambiguous and conflicting results of multiple phylogenetic studies may be the result of the use of too little data, phylogenetic methods that do not ...
Zhou Kaiya   +4 more
doaj   +1 more source

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