Results 21 to 30 of about 15,793 (217)
PLoS ONE, 2023 Commercial fisheries have increased in all the world's oceans with diverse unintended impacts on marine ecosystems. As a result of resource overlap, interactions between cetaceans and fisheries are a common occurrence and, in many cases, can give rise to
Usua Oyarbide +2 more
doaj +3 more sources
The impact of predation by marine mammals on Patagonian toothfish longline fisheries [PDF]
, 2015 Predatory interaction of marine mammals with longline fisheries is observed globally, leading to partial or complete loss of the catch and in some parts of the world to considerable financial loss.
A Atkinson +46 more
core +6 more sources
Quantifying the energy stores of capital breeding humpback whales and income breeding sperm whales using historical whaling records [PDF]
Royal Society Open Science, 2017 Cetacean energy stores are known to vary according to life history, reproductive status and time of year; however, the opportunity to quantify these relationships is rare. Using a unique set of historical whaling records from Western Australia (1952–1963)
Lyn G. Irvine +4 more
doaj +1 more source
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
Male sperm whale acoustic behavior observed from multipaths at a single hydrophone [PDF]
, 2005 Sperm whales generate transient sounds (clicks) when foraging. These clicks have been described as echolocation sounds, a result of having measured the source level and the directionality of these signals and having extrapolated results from biosonar ...
Adam, Olivier +3 more
core +4 more sources
Ruhuna Journal of Science, 2023 An opportunistic study was carried out from a 113’ motor-sailing vessel along the southeast coast of Sri Lanka from April 11 to 19, 2013. Passive acoustic monitoring allowed pods of sperm whales (Physeter macrocephalus) to be detected and tracked before ...
Abigail Alling +3 more
doaj +1 more source
A Bayesian method to estimate the depth and the range of phonating sperm whales using a single hydrophone [PDF]
, 2007 Some bioacousticians have used a single hydrophone to calculate the depth/range of phonating diving animals. The standard one-hydrophone localization method uses multipath transmissions (direct path, sea surface, and seafloor reflections) of the animal ...
Backus R. +3 more
core +4 more sources
Endangered Species Research, 2014 Satellite tags were attached to 10 sperm whales Physeter macrocephalus (1 whale was tagged in 2 different years) to determine the movements of sperm whales involved in removal of sablefish from longline fishing gear in the Gulf of Alaska (GOA).
JM Straley +7 more
doaj +1 more source
Animal Biotelemetry, 2020 Background Argos satellite telemetry is used globally to track terrestrial and aquatic megafauna, yet the accuracy of this system has been described empirically only for a limited number of species.
Ladd M. Irvine +4 more
doaj +1 more source
Bayesian three-dimensional reconstruction of toothed whale trajectories: Passive acoustics assisted with visual and tagging measurements [PDF]
, 2012 The author describes and evaluates a Bayesian method to reconstruct three-dimensional toothed whale trajectories from a series of echolocation signals.
Laplanche, Christophe
core +4 more sources