Results 41 to 50 of about 1,448 (172)
Journal of Applied Ichthyology, Volume 2026, Issue 1, 2026.The lack of biometric data on chondrichthyan species has impeded the implementation of management strategies essential for the conservation of sharks and rays captured using different fishing gears in coastal ecosystems. This study aims to assess morphometric relationships (length–weight [LW], length–dorsal length [DL], and length–disc width [DW]) and ...
Adrián Felipe González-Acosta +6 more
wiley +1 more source
Environmental controls on the distribution of neoselachian sharks and rays within the British Bathonian (Middle Jurassic). [PDF]
, 2003 Extensive sampling from a range of facies within the Bathonian (Middle Jurassic) of southern England has allowed the palaeoenvironmental distribution of a number of taxa of neoselachian sharks and rays to be assessed.
Underwood, Charlie J.
core +1 more source
A Review of the Status of Sharks, Rays and Chimaeras of Panama to Guide Research and Conservation
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 4, April 2025.ABSTRACT Chondrichthyan fishes (sharks, rays and chimaeras) are a group of high conservation concern globally. Species are impacted by varying threats, although fishing pressure is the primary stressor causing population declines. Panama comprises both Pacific and Caribbean coastlines with a diversity of estuarine and marine habitats supporting small ...
Jorge Manuel Morales‐Saldaña +5 more
wiley +1 more source
Ecology and Evolution, Volume 7, Issue 14, Page 5435-5453, July 2017., 2017 The Australian sea lion is an endangered apex predator which is endemic to Western Australia. We collected and extracted the DNA from 36 scats taken from five known sea lion haul out locations around the southeast coast of Western Australia. Several assays were used to target barcode sequences to both identify the diet of the sea lions and gain insight
Tina E. Berry +8 more
wiley +1 more source
Mitigating the effect of by‐catch on endangered marine life
Animal Conservation, Volume 28, Issue 2, Page 172-184, April 2025.Fishing gears cause substantial impacts on the oceans and their ecosystems, and many marine animals, such as sea turtles, marine mammals, seabirds and elasmobranchs, end up as by ‐catch. In this paper, the most effective mitigation measures were investigated for each group, taking into account the fishing gear with which they interact most.
M. Villafáfila +2 more
wiley +1 more source
Trends in Medicinal Uses of Edible Wild Vertebrates in Brazil
Evidence-Based Complementary and Alternative Medicine, Volume 2017, Issue 1, 2017., 2017 The use of food medicines is a widespread practice worldwide. In Brazil, such use is often associated with wild animals, mostly focusing on vertebrate species. Here we assessed taxonomic and ecological trends in traditional uses of wild edible vertebrates in the country, through an extensive ethnobiological database analysis. Our results showed that at
Rômulo Romeu Nóbrega Alves +3 more
wiley +1 more source
Consumption to biomass (Q/B) ratio and estimates of Q/B-predictor parameters for Caribbean fishes [PDF]
, 2002 Estimates of the Q/B ratio and parameters of equations to 'predict' Q/B values for 116 fish stocks in the Gulf of Salamanca, Colombia are presented. A compilation of these estimates available for Caribbean Sea fishes (264 stocks) is also provided for ...
Duarte, L.O., Garcia, C.B.
core
Shark and ray teeth from the Hauterivian (Lower Cretaceous) of north-east England [PDF]
, 1999 Sampling of hiatal horizons within the Hauterivian part of the Speeton Clay Formation of north-east England has produced teeth of several species of sharks and rays, four of which are previously unnamed.
Mitchell, S.F. +2 more
core +1 more source
Ray bioturbation rates suggest they shape estuary processes
Remote Sensing in Ecology and Conservation, Volume 11, Issue 1, Page 74-87, February 2025.This study used aerial drones to map daily ray bioturbation activity and extrapolated these patterns using aerial imagery to assess sediment displaced annually by rays during foraging activities at an estuary scale. Our results indicated rays displaced 1.20 (±0.68) tonnes of sediment per day within a 1443 m2 area in the Brisbane Water estuary.
Molly Grew +4 more
wiley +1 more source
Selachian faunas from the earliest Cretaceous Purbeck Group of Dorset, southern England. [PDF]
, 2002 Abundant selachian remains have been recovered from a number of horizons through the Purbeck Group at Durlston Bay, Lulworth Cove and Stair Hole in southern England.
Rees, J., Underwood, Charlie J.
core