Results 41 to 50 of about 5,581 (218)

Cetaceans as Ocean Health Indicators of Marine Litter Impact at Global Scale

Frontiers in Environmental Science, 2020
Marine litter is a growing concern for marine animals, including cetaceans for which there is a developing body of evidence showing impacts of both entanglement and ingestion.
Maria Cristina Fossi, Matteo Baini, Mark Peter Simmonds, Mark Peter Simmonds   +3 more
doaj   +1 more source

Using a coherent hydrophone array for observing sperm whale range, classification, and shallow-water dive profiles [PDF]

, 2014
Sperm whales in the New England continental shelf and slope were passively localized, in both range and bearing, and classified using a single low-frequency (
Alexander C. Bohn, Backus R. H., Delin Wang, Duong D. Tran, Madsen P. T., Nicholas C. Makris, Purnima Ratilal, Teloni V., Wei Huang, Zheng Gong   +9 more
core   +1 more source

Combined line-transect and cue-count estimate of sperm whale abundance in the North Atlantic, from Icelandic NASS-2001 shipboard survey

NAMMCO Scientific Publications, 2009
Sperm whales (Physeter macrocephalus) pose a particular problem to shipboard surveys as they dive for extended periods and are therefore likely to be missed (not available) even if they are right under the track line. To address these problems the NAMMCO
Thorvaldur Gunnlaugsson, Gisli A Víkingsson, Daniel G Pike   +2 more
doaj   +1 more source

Nuevo registro de un cachalote (Physeter macrocephalus) varado y una revisión de varamientos en las costas de Argentina continental [PDF]

, 2011
Presentamos un nuevo registro de un cachalote, con notas sobre la dieta, la determinación de edad y la presencia de parásitos, junto con una revisión de los varamientos a lo largo de toda la costa continental argentina.
Crespo, Enrique Alberto, Dans, Silvana Laura, Degrati, Mariana, Garcia, Nestor Anibal, Grandi, Maria Florencia, Leonardi, María Soledad, Loizaga de Castro, Rocio, Pedraza, Susana Noemi, Vales, Damián Gustavo   +8 more
core  

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

The Anatomical Record, EarlyView.
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, Tommaso Gerussi, Bruno Cozzi, Rebecca M. Boys, Brian Chin Wing Kot, Matthew R. Perrott, Kane Fleury, Tabris Yik To Chung, Henry Chun Lok Tsui, Emma Burns, Trudi Webster, Stuart Hunter, Emma L. Betty, Odette Howarth, Carolina Loch, Sophie White, Steve Dawson, William Rayment, Ros Cole, Derek Cox, Tom Waterhouse, Hannah Hendriks, Anton van Helden, Muriel Johnstone, Ramari Oliphant Stewart, R. Ewan Fordyce, Karen A. Stockin   +26 more
wiley   +1 more source

Notes on the brain and encephalization quotient of two sperm whales with a synthesis of the literature and indications of a new method of extraction

Natural History Sciences, 2014
The sperm whale (Physeter macrocephalus, Linnaeus 1758) possesses the largest brain that ever existed. Relatively few authors have dealt with it and the available descriptions are heterogeneous, with only few data about brain weight or gross anatomy.
Michele Povinelli, Mattia Panin, Sandro Mazzariol, Maristella Giurisato, Cristina Ballarin, Giulia Roncon, Michela Podestà, Massimo Demma, Bruno Cozzi   +8 more
doaj   +1 more source

An Unparalleled Sexual Dimorphism of Sperm Whale Encephalization [PDF]

, 2016
The sperm whale Physeter macrocephalus (Linnaeus, 1758) is the largest toothed whales and possesses the highest absolute values for brain weight on the planet (together with the killer whale Orcinus orca).
Cozzi, Bruno, Huggenberger, Stefan, Mazzariol, Sandro, Podest\ue0, Michela, Zotti, Alessandro   +4 more
core  

Multi-state open robust design applied to opportunistic data reveals dynamics of wide-ranging taxa: The sperm whale case. [PDF]

, 2019
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Boys, R. M., Oliveira, C., Perez-Jorgeo, S., Prieto, R., Steiner, L., & Silva, M. A.
Boys, Rebecca M., Oliveira, Claudia, Prieto, Rui, Pérez‐Jorge, Sergi, Silva, Monica A., Steiner, Lisa   +5 more
core   +1 more source

Rhyming in the cold: first evidence of soniferous fishes in the Southern Ocean

Remote Sensing in Ecology and Conservation, EarlyView.
The acoustic ecology of Southern Ocean fishes remains unknown due to a lack of dedicated acoustic research on the fishes of this ocean. Passive acoustic monitoring data were collected at the South African sub‐Antarctic Prince Edward Islands using an underwater acoustic recorder, and towed underwater Ski‐Monkey cameras were deployed to identify fish ...
Fannie W. Shabangu, Grant van der Heever, Charles von der Meden, Hannah Truter, Stephen J. Lamberth, Ofer Gon   +5 more
wiley   +1 more source

Case Report: Ambergris coprolite and septicemia in a male sperm whale stranded in La Palma (Canary Islands)

Frontiers in Veterinary Science
On the 21st of May 2023, a dead adult male sperm whale (Physeter macrocephalus) of 13 m in length and estimated weight of around 18,000 kg was reportedly stranded at Playa Los Nogales, La Palma, Canary Islands, Spain. A necropsy was performed 48hpm. A 50 
Antonio Fernández, Antonio Fernández, Cristian Suárez-Santana, Cristian Suárez-Santana, Paula Alonso-Almorox, Paula Alonso-Almorox, Francesco Achille Consoli, Francesco Achille Consoli, Zuleima Suárez González, Zuleima Suárez González, Ignacio Molpeceres-Diego, Ignacio Molpeceres-Diego, Claudia Iglesias González, Claudia Iglesias González, Marta Lorente Hernández, Amaranta Hugo Pérez, José Luis Martín-Barrasa, José Luis Martín-Barrasa, Laura Iglesias Llorente, Félix M. Medina, Raiden Grandía Guzmán, Raiden Grandía Guzmán, Diego Llinás Rueda, Diego Llinás Rueda, Manuel Arbelo, Manuel Arbelo, Eva Sierra, Eva Sierra   +27 more
doaj   +1 more source