Results 121 to 130 of about 31,509 (284)

Sensory Biology of the Franciscana (Pontoporia blainville, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Stranded cetaceans

open access: yesAnimal Welfare, 1994
The RSPCA (Royal Society for the Prevention of Cruelty to Animals) has produced a second edition of its stranded whales booklet. The first version was published out of the RSPCA's 1983 Stranded Whale Workshop and this 1994 edition incorporates additional information from a follow-up seminar run by the Society in November 1992.
openaire   +1 more source

STbayes: An R package for creating, fitting and understanding Bayesian models of social transmission

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract A critical consequence of joining social groups is the possibility of social transmission of information related to novel behaviours or resources. Network‐based diffusion analysis (NBDA) has emerged as a leading frequentist framework for inferring and quantifying social transmission, particularly in non‐human animal populations.
Michael Chimento, William Hoppitt
wiley   +1 more source

Stranding survey as a framework to investigate rare cetacean records of the north and north-eastern Brazilian coasts

open access: yesZooKeys, 2017
Marine mammal stranding events are used as an important tool for understanding cetacean biology worldwide. Nonetheless, there are vast gaps of knowledge to be filled in for a wide range of species. Reputable information is required regarding species from
Alexandra Fernandes Costa   +6 more
doaj   +3 more sources

Challenges of Monitoring Endangered Bryde's Whales During a Period of Rapid Environmental Change

open access: yesAnimal Conservation, EarlyView.
Estimating population size is challenging for rare and elusive species that occur at low densities and are difficult to detect during sampling. We estimated the abundance of a Nationally critical whale species—Aotearoa New Zealand Bryde's whales—using a custom‐formulated POPAN model which incorporated transience to account for their complex residency ...
A. S. Cranswick   +7 more
wiley   +1 more source

Estimating non‐US longline fishing impacts on Hawai‘i pelagic false killer whales in a transboundary assessment area

open access: yesConservation Science and Practice, EarlyView.
Downscaling Regional Fishery Management Organization reported longline effort data using fine‐scale Global Fishing Watch effort estimates facilitates estimates of non‐US effort within a transboundary management area. These effort estimates are then used to predict interaction with the Hawai‘i pelagic false killer whale in non‐US fleets, reducing ...
Robert N. M. Ahrens   +4 more
wiley   +1 more source

Visual Modelling to Predict Behavioural Responses of Catsharks, Skates, and Plaice to Artificial Light for Use in Bycatch Reduction

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Light can be used to deter bycatch from fishing nets, but few studies have aimed to quantify how species view and respond to light. Here, we used visual models to predict how target (plaice Pleuronectes platessa) and bycatch (small‐spotted catshark Scyliorhinus canicular and undersized skates, Raja spp) species, captured in mixed demersal ...
Jasmine Somerville   +2 more
wiley   +1 more source

Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters: a guide to their identification [PDF]

open access: yes, 1982
This is an identification guide for cetaceans (whales, dolphins, and porpoises), that was designed to assist laymen in identifying cetaceans encountered in eastern North Pacific and Arctic waters.
Evans, William E.   +4 more
core  

Post‐Release Survival of the Pelagic Stingray (Pteroplatytrygon violacea, Bonaparte, 1832) in French Longline Fisheries in the Northwestern Mediterranean Sea

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Bycatch remains a critical challenge in global fisheries, even when using selective gears such as longlines. In the French longline fishery targeting Atlantic bluefin tuna (Thunnus thynnus) in the Gulf of Lion, the common pelagic stingray (Pteroplatytrygon violacea) is the primary bycatch species.
Antoine Landreau   +5 more
wiley   +1 more source

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