Results 21 to 30 of about 6,166 (199)
Kin relationships in cultural species of the marine realm: case study of a matrilineal social group of sperm whales off Mauritius island, Indian Ocean [PDF]
Royal Society Open Science, 2021 Understanding the organization and dynamics of social groups of marine mammals through the study of kin relationships is particularly challenging.
Francois Sarano +11 more
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Sperm whales forage year-round in the ross sea region
Frontiers in Remote Sensing, 2023 We investigated the seasonal and spatial occurrence of sperm whale (Physeter macrocephalus) in the Ross Sea region of the Southern Ocean derived from passive acoustic data.
Giacomo Giorli, Matthew H. Pinkerton
doaj +1 more source
Exploring variability in the diet of depredating sperm whales in the Gulf of Alaska through stable isotope analysis [PDF]
Royal Society Open Science, 2020 Sperm whales interact with commercially important groundfish fisheries offshore in the Gulf of Alaska (GOA). This study aims to use stable isotope analysis to better understand the trophic variability of sperm whales and their potential prey, and to use ...
Lauren A. Wild +3 more
doaj +1 more source
Wild whale faecal samples as a proxy of anthropogenic impact
Scientific Reports, 2021 The occurrence of protozoan parasite, bacterial communities, organic pollutants and heavy metals was investigated in free-ranging species of fin (Balaenoptera physalus, n. 2) and sperm (Physeter macrocephalus, n.
Marianna Marangi +3 more
doaj +1 more source
Sperm whale presence observed using passive acoustic monitoring from gliders of opportunity
Endangered Species Research, 2020 Habitat use by the endangered Mediterranean sperm whale subpopulation remains poorly understood, especially in winter. The sustained presence of oceanographic autonomous underwater vehicles in the area presents an opportunity to improve observation ...
Cauchy, P +5 more
doaj +1 more source
Frontiers in Marine Science, 2023 The Mediterranean sperm whale population, Physeter macrocephalus, is listed as endangered due to population decline caused by human activities. To mitigate the impact of these activities, accurate knowledge of their distribution and abundance is crucial.
Clara Lerebourg +4 more
doaj +1 more source
Toward understanding the communication in sperm whales
iScience, 2022 Machine learning has been advancing dramatically over the past decade. Most strides are human-based applications due to the availability of large-scale datasets; however, opportunities are ripe to apply this technology to more deeply understand non-human communication.
Jacob Andreas +19 more
openaire +7 more sources
Karyotypes and idiograms of sperm and pygmy sperm whales [PDF]
Hereditas, 2009 The somatic chromosomes of the sperm whale, Physeter catodon L. and the pygmy sperm whale, Kogia breviceps Blainville, were studied. The chromosome number of both species is 2n=42. The sperm and pygmy sperm whales are the only cetaceans, so far recorded, with a chromosome number deviating from 2n=44.
Ulfur Arnason, Kurt Benirschke
openaire +3 more sources
Endangered Species Research, 2020 Knowledge of cetacean occurrence and behaviour in southern African waters is limited, and passive acoustic monitoring has the potential to address this gap efficiently. Seasonal acoustic occurrence and diel-vocalizing patterns of sperm whales in relation
Shabangu, FW, Andrew, RK
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Scientific Reports, 2022 Deep-habitat cetaceans are generally difficult to study, leading to a limited knowledge of their population. This paper assesses the differential distribution patterns of three deep-habitat cetaceans (Sperm whale—Physeter macrocephalus, Risso’s dolphin ...
Estefanía Torreblanca +6 more
doaj +1 more source