Results 41 to 50 of about 3,259 (192)
Zoologia (Curitiba), 2014 The stomach contents of the eyespot skate, Atlantoraja cyclophora (Regan, 1903), were examined with the goal to provide information about the diet of the species.
Alessandra da Fonseca Viana +1 more
doaj +1 more source
Distribution of skates and sharks in the North Sea: 112 years of change [PDF]
, 2016 How have North Sea skate and shark assemblages changed since the early 20th century when bottom trawling became widespread, whilst their environment became increasingly impacted by fishing, climate change, habitat degradation and other anthropogenic ...
Ellis, JR +4 more
core +1 more source
Ciencias Marinas, 2010 A total of 483 specimens (236 males and 247 females) of the brown ray Raja miraletus were collected off the coast of Senegal (eastern tropical Atlantic).
C Capapé +4 more
doaj +1 more source
Development and regeneration of the crushing dentition in skates (Rajidae)
Developmental Biology, 2020 Sharks and rays (elasmobranchs) have the remarkable capacity to continuously regenerate their teeth. The polyphyodont system is considered the ancestral condition of the gnathostome dentition. Despite this shared regenerative ability, sharks and rays exhibit dramatic interspecific variation in their tooth morphology.
Liam J. Rasch +5 more
openaire +2 more sources
Predictive habitat suitability models to aid conservation of elasmobranch diversity in the central Mediterranean Sea [PDF]
, 2015 Commercial fisheries have dramatically impacted elasmobranch populations worldwide. With high capture and bycatch rates, the abundance of many species is rapidly declining and around a quarter of the world’s sharks and rays are threatened with extinction.
A Dell’Apa +59 more
core +2 more sources
Fisheries 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
Morphology of blue eye skate, Raja ocellifera Regan, 1906 (Family: Rajidae) the Namibian shelf [PDF]
Acta Ichthyologica et Piscatoria, 1986 Metric characters and number of spines along the body axis were determined, using percentage indices, in a population of Raja ocellifera from the SW African fishing grounds. Sexual dimorphism in secondary sex attributes was found in the population.
S. Krzykawski, A. Dubas
doaj +3 more sources
Drivers of the spatial behaviour of the threatened thornback skate (Raja clavata)
Aquatic Living Resources, 2023 Fish movements are fundamental to their ecology and survival. Understanding the causes and consequences of the spatial behaviour of fish is of high relevance as it provides critical knowledge for conservation purposes. Skate (Rajidae) populations face an
Papadopoulo Kenn +4 more
doaj +1 more source
Journal of Fish Diseases, EarlyView.ABSTRACT Infectious salmon anaemia virus (ISAV) can cause disease and mortality in Atlantic salmon (Salmo salar). The virus is endemic in several regions including the Atlantic coast of Canada. Lumpfish (Cyclopterus lumpus) are increasingly utilised as cleaner fish to control sea lice levels in Atlantic salmon farms.
Nellie Gagné +5 more
wiley +1 more source