Results 31 to 40 of about 384 (117)

Assessing the overlap between fishing and chondrichthyans exposes high‐risk areas for bycatch of threatened species

open access: yesEcosphere, Volume 15, Issue 11, November 2024.
Abstract Chondrichthyans (sharks, rays, skates, and chimaeras) make up one of the oldest and most ecologically diverse vertebrate groups, yet they face severe threats from fishing, necessitating improved management strategies. To effectively manage these species, we need to understand their spatial interactions with fisheries.
Federico Maioli   +7 more
wiley   +1 more source

Distribution and diversity of elasmobranchs in the Sea of Marmara: A 2023 status report

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 3, March 2024.
Abstract Elasmobranchs, encompassing an array of sharks and rays, confront a threat of extinction on a global scale. The Sea of Marmara (SoM) stands out as a critical refuge for these endangered species. This study harnesses data derived from comprehensive trawl surveys, representing the first area‐based evaluation of the elasmobranchs inhabiting the ...
Uğur Karadurmuş, Mustafa Sarı
wiley   +1 more source

Adriatic sea sharks [PDF]

open access: yes, 2011
Morski psi spadaju u razred hrskavičnjača (Selachii, Chondrichthyes). Postoje već 400 milijuna godina i gotovo nepromijenjeni plivaju svjetskim morima, pa tako i Jadranom. Danas u hranidbenom lancu zauzimaju mjesto vodećeg predatora.
Šimunović, Ivana
core   +2 more sources

Elasmobranchs in Tunisia: Status, Ecology, and Biology [PDF]

open access: yes, 2022
The authors have compiled published information on taxonomy, distribution, status, statistics, fisheries, bycatch, biologic, and ecologic parameters mainly on food and feeding habits and reproductive biology of elasmobranchs along the Tunisian coasts ...
Bradai, Mohamed Nejmeddine   +2 more
core   +2 more sources

On the occurrence of the arrowhead dogfish, Deania profundorum (Chondrichthyes : Squalidae) off southern Portugal, with a missing gill slit [PDF]

open access: yes, 2006
Signalement d’un Deania pro f u n d o ru m ( C h o n d r i c hthyes : Squalidae) capturé dans le sud du Portugal, avec absence d’une fente branchiale. Dans ce travail, nous rapportons la capture d’un chien de mer pointe de flèche, Deania pro f u n d o ...
Coelho, Rui, Erzini, Karim
core  

Vulnerability of elasmobranchs caught as bycatch in the grouper longline fishery in the Gulf of Gabès, Tunisia [PDF]

open access: yes, 2023
The present study aims to quantify the effect of the grouper demersal longline fishery to elasmobranchs in the Gulf of Gabès to support future conservation actions for the most vulnerable species.
BRADAI, MOHAMED NEJMEDDINE   +2 more
core   +1 more source

Campagna di ricerca in mare: Sezione G – MEDITS 2012. Sub-area Geografica (GSA) 16 – Stretto di Sicilia [PDF]

open access: yes, 2013
La campagna scientifica Medits, nell’ambito del Programma nazionale Italiano per la raccolta dei dati alieutici (Reg. CE n°199/2008 e n°665/2008), ha l’obiettivo generale di valutare la distribuzione, l’abbondanza e la composizione per taglia delle ...
Badalucco, C.   +18 more
core  

Cryptic species due to hybridization: A combined approach to describe a new species (carex: Cyperaceae) [PDF]

open access: yes, 2016
Disappearance of diagnostic morphological characters due to hybridization is considered to be one of the causes of the complex taxonomy of the species-rich (ca. 2000 described species) genus Carex (Cyperaceae). Carex furva s.l.
Escudero Lirio, Marcial   +1 more
core   +2 more sources

An updated checklist of chondrichthyans of Calabria (Central Mediterranean, southern Italy), with emphasis on rare species [PDF]

open access: yes, 2020
In this contribution the checklist of chondrichthyans of Calabria (Central Mediterranean, southern Italy) is reported. Data presented is derived from twenty years of opportunistic and active surveys from 2000 to 2020.
BOTTARO, MASSIMILIANO   +10 more
core   +2 more sources

Species identification, distributioin and reproductive interactions of common smoot-hound and blackspotted smooth-hound shark (Genus mustelus) in the Adriatic Sea [PDF]

open access: yes, 2011
Longstanding taxonomic ambiguity and uncertainty exist in the identification of the common (M. mustelus) and blackspotted (M. punctulatus) smooth-hound in the Adriatic Sea.
Di Francesco, Nicola
core  

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