2023
DOI: 10.3389/fmars.2023.1145176
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Spatial distribution of the demersal chondrichthyan community from the western Mediterranean trawl bycatch

Abstract: IntroductionChondrichthyans (sharks, batoids and chimaeras) play key roles in the regulation of marine food webs dynamics. However, more than half of the assessed species in the Mediterranean are threatened, primarily by fishing pressure and compounded by habitat degradation and climate change. Nevertheless, there is an important knowledge gap in identifying the underlying drivers of their community structure and spatial distribution.Methods and ResultsWe provide insights into the current bycatch rates of chon… Show more

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Cited by 9 publications
(5 citation statements)
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“…Moreover, in terms of protection status, both species are of low concern according to the IUCN Red List. However, they are also the most frequently non-target caught demersal shark species on the eastern Iberian Peninsula [37]. Specifically, according to the FAO (www.fao.org, accessed on 22 December 2023), over 716 tonnes of S. canicula and 228 tonnes (both live weight) of G. melastomus were captured from 2019 to 2021 in Spain.…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, in terms of protection status, both species are of low concern according to the IUCN Red List. However, they are also the most frequently non-target caught demersal shark species on the eastern Iberian Peninsula [37]. Specifically, according to the FAO (www.fao.org, accessed on 22 December 2023), over 716 tonnes of S. canicula and 228 tonnes (both live weight) of G. melastomus were captured from 2019 to 2021 in Spain.…”
Section: Introductionmentioning
confidence: 99%
“…It is for its biological and behavioural traits as well as its widespread distribution, relationship with sheries and capability to accumulate xenoiotics that make the small-spotted catshark, Scyliorhinus canicula (Linnaeus, 1758) has a great potential to serve as a biomonitor. This demersal elasmobranch species can be found widespread throughout the Mediterranean and north-eastern Atlantic´s continental platform and the upper slopes (Ebert and Stehmann, 2013;Kousteni et al, 2015;Massutí and Moranta, 2003;Ruiz-García et al, 2023;Serena et al, 2020). This opportunistic predator´s diet has been found to be highly generalistic, being comprised mainly of crustaceans, molluscs, and teleosts (Barría et al, 2017;Kousteni et al, 2017;Lyle, 1983;Reinero et al, 2023;Valls et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
“…This is particularly true within the Mediterranean Sea, a known hotspot of extinction risk for sharks and rays with a concerning decline of its elasmobranch populations and no signs of improvement in their conservation status for many years (Dulvy et al, 2014;Dulvy et al, 2016;Milazzo et al, 2021). Rays have received less scientific attention compared to other vertebrate groups (Aschliman et al, 2012;Bräutigam et al, 2016), with most studies assessing their status using fishery-dependent approaches and often not properly evaluating their actual abundance and distribution, particularly in shallow waters (Ismen, 2003;Morey et al, 2006;Ismen et al, 2007;Geraci et al, 2021;Ruiz-García et al, 2023).…”
mentioning
confidence: 99%
“…1). The SoM is a narrow channel with an articulated bottom topography and strong tidal currents that separates Sicily Island from the Italian pen- Seven species belonging to the Dasyatidae family have been reported in the Mediterranean Sea, including two similar-looking Dasyatis species (D. pastinaca and D. tortonesei) that lead to possible morphological misidentifications (Saadaoui et al, 2016;Serena et al, 2020) despite recently-confirmed genetic differences (Vella & Vella, 2021). The common stingray D. pastinaca is a large demersal meso-predator that inhabits sandy-muddy bottoms of the North-east Atlantic Ocean and the Mediterranean and Black Seas (Ebert & Stehmann, 2013).…”
mentioning
confidence: 99%
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