Results 41 to 50 of about 1,562 (195)
Chondrichthyan Fauna from the Pirabas Formation, Miocene of Northern Brazil, with Comments on Paleobiogeography [PDF]
Anuário do Instituto de Geociências, 2005 The chondrichthyan fauna from the Pirabas Formation is redescribed. Only thirteen nominal taxa are considered valid. From these taxa, ten were reassigned to extant taxa (Carcharhinus sorrah, Carcharhinus perezii, Galeocerdo cuvier, Rhizoprionodon ...
Márcia Aparecida Fernandes dos Reis
doaj
Shark incidents in California 1950-2021; frequency and trends
Frontiers in Marine Science, 2022 Many reports have categorized the frequency, circumstances, and causes for interactions between sharks and humans, often using the behaviorally inaccurate term “attack.” The California Department of Fish and Wildlife (Department) instead uses the term ...
John Ugoretz +2 more
doaj +1 more source
Digital surveillance of animals and nature recovery
People and Nature, EarlyView.Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley +1 more source
Environmental Toxicology, EarlyView.ABSTRACT A comprehensive screening of different environmental contaminants (total metals, thermostable metal fractions associated with detoxification, and persistent organic pollutants) was conducted in an endangered common thresher shark (Alopias vulpinus ) individual incidentally captured in southeastern Brazil.
Sidney Fernandes Sales Junior +10 more
wiley +1 more source
, 2020 Video of first record of the Great White Shark, Carcharodon carcharias, on Alligator Reef, Florida Keys, USA: CBS Miami included in: Estape C.J., Morgan Estape, A. & Starck, W.A.
Victor, Benjamin C.
core +1 more source
Frontiers in Marine Science, 2020 Establishing diets and dietary generalism in marine top predators is critical for understanding their ecological roles and responses to environmental fluctuations. Nutrition plays a key mediatory role in species-environment interactions, yet descriptions
Richard Grainger +5 more
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract Fewer than 50 of the over 30,000 extant species of fishes have developed anatomical specializations facilitating endothermy in specific body regions. The plankton‐feeding basking shark (Cetorhinus maximus), traditionally classified as an ectotherm, was recently shown to have regionally endothermic traits such as centralized red muscle (RM ...
C. Antonia Klöcker +9 more
wiley +1 more source
Metabarcoding gillnets to assess unaccounted catch depredation or escape
Environmental DNA, 2022 Gillnets are the world's most common net‐based fishing gear, comprising walls of light mesh designed to entangle fish. Gillnets are often retrieved with holes in the netting, which means some animals escape or are depredated unseen, but with some ...
Mark deBruyn +2 more
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract Environmental DNA (eDNA) biodiversity surveys have the power to transform the detection of species in natural environments, which is crucial for the conservation and management of freshwater, estuarine and marine environments. Globally, eDNA‐based analyses have increased significantly, with fishes being the most widely studied aquatic ...
Sophie von der Heyden
wiley +1 more source
Genetic Diversity of White Sharks, Carcharodon carcharias, in the Northwest Atlantic and Southern Africa [PDF]
Journal of Heredity, 2015 The white shark, Carcharodon carcharias, is both one of the largest apex predators in the world and among the most heavily protected marine fish. Population genetic diversity is in part shaped by recent demographic history and can thus provide information complementary to more traditional population assessments, which are difficult to obtain for white ...
O'Leary, Shannon J. +7 more
openaire +3 more sources