Search results for " Elasmobranchs"

showing 3 items of 3 documents

MEDLEM database, a data collection on large Elasmobranchs in the Mediterranean and Black seas

2020

The Mediterranean Large Elasmobranchs Monitoring (MEDLEM) database contains more than 3,000 records (with more than 4,000 individuals) of large elasmobranch species from 21 different countries around the Mediterranean and Black seas, observed from 1666 to 2017. The principal species included in the archive are the devil ray (1,868 individuals), the basking shark (935 individuals), the blue shark (622 individuals), and the great white shark (342 individuals). In the last decades, other species such as the thresher shark (187 individuals), the shortfin mako (180 individuals), and the spiny butterfly ray (138) were reported with increasing frequency. This was possibly due to increased public a…

Bycatch; databases; geographical distribution; large elasinobranchs; Mediterranean and Black seas; sharks0106 biological sciencesMediterranean climate2417.05 Biología Marina2510.01 Oceanografía Biológicalarge elasmobranchsMediterranean and Black seascetorhinus-maximus gunnerusOceanographycomputer.software_genre01 natural sciencesBasking sharkPesqueríasThresher shark1st recordsbiologyDatabaseconservationBycatch; databases; geographical distribution; large elasmobranchs; Mediterranean and Black seas; sharks04 agricultural and veterinary sciencescarcharhinidaeGeographyMediterranean and black seacoastbasking sharkLarge elasmobranchcarcharodon-carcharias linnaeusEnvironmental Engineeringdatabases[SDE.MCG]Environmental Sciences/Global ChangesFishingSede Central IEOAquatic Sciencesharksplumbeus chondrichthyesDatabasesharks.biology.animal[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoologysharks; by-catch; databases; large elasmobranchs; geographical distribution; Mediterranean and Black seasgeographical distributionBycatch ; databases ; geographical distribution ; large elasinobranchs ; Mediterranean and Black seas ; sharks14. Life underwaterEcology Evolution Behavior and Systematicslarge elasinobranchs010604 marine biology & hydrobiologybiology.organism_classificationlamniformes cetorhinidaeby-catchBycatchGreat white sharkBycatchButterfly ray040102 fisheries0401 agriculture forestry and fisheriesConservation status[SDE.BE]Environmental Sciences/Biodiversity and Ecologycomputer
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Commercial sharks under scrutiny: Baseline genetic distinctiveness supports structured populations of small-spotted catsharks in the Mediterranean Sea

2023

The present study, based on microsatellite markers, describes a population genetic analysis of the small-spotted catshark Scyliorhinus canicula (Linnaeus, 1758), representing one of the most abundant and commonly caught cartilaginous fishes in the Mediterranean Sea and adjacent areas. The analyses were performed to unravel the genetic features (variability, connectivity, sex-biased dispersal) of their relative geographic populations, both at the small (around the coast of Sardinia, Western Mediterranean Sea) and at a larger spatial scale (pan-Mediterranean level and between the Atlantic Ocean and the Mediterranean Sea). Individual clustering, multivariate and variance analyses rejected the …

Global and Planetary ChangeSettore BIO/05 - ZoologiaGenetic assessment Reference baseline Elasmobranchs Microsatellites Mediterranean Sea Population structure Small-spotted catshark Commercial speciesOcean EngineeringAquatic ScienceOceanographyWater Science and TechnologyFrontiers in Marine Science
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New technologies can support data collection on endangered shark species in the Mediterranean Sea

2022

In the last 50 yr, shark populations showed steep declines in the Mediterranean Sea. The IUCN lists most Mediterranean species as threatened (55%), while considering 27.5% of them Data Deficient. Here, sharks are currently one of the rarest and more elusive groups of animals, and data from fisheries and scientific monitoring still insufficiently support robust abundance and distribution assessments. New technologies can fill this data gap by linking people and scientists through new monitoring strategies. SharkPulse, an international collaborative project, aims at creating a large world database of shark occurrence records by mining images on the web, social networks, and private archives. …

abundancecitizen science; data mining; elasmobranchs; opportunistic data; abundance; distributionEcologyopportunistic datacitizen sciencedistributiondata miningAquatic ScienceEcology Evolution Behavior and SystematicsCitizen science Data mining Elasmobranchs Opportunistic data Abundance Distributionelasmobranchs
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