Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea

 
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Σημασιολογικός εμπλουτισμός από το EKT
Τμήμα περιοδικού (EL)
2021 (EL)
Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea (EN)
TIČINA, VJEKOSLAV
IGLESIAS, MAGDALENA
FERRERI, ROSALIA
GENOVESE, SIMONA
HATTAB, TAREK
BARRA, MARCO
VENTERO, ANA
SARAUX, CLAIRE
JURETIĆ, TEA
De FELICE, ANDREA
RAYKOV, VIOLIN ST
MALAVOLTI, SARA
BASILONE, GUALTIERO
LEONORI, IOLE
BIAGIOTTI, ILARIA
BOURDEIX, JEAN-HERVE
GAŠPAREVIĆ, DENIS
Size at first sexual maturity (L50) represents an important life history trait in the development of management measures providing fundamental information to avoid the exploitation of younger individuals. L50 is known to display variability due to fishing pressure, geographical gradient and environmental features. In this study, in order to investigate L50 variability among areas of the Mediterranean and Black Sea, maturity ogives of anchovy (Engraulis encrasicolus) were estimated by considering samples collected during the anchovy spawning period in the framework of the MEDiterranean International Acoustic Survey (MEDIAS) program. Anchovy size and sexual maturity data from several Geographical Sub-Areas (GSA) – i.e. Northern Spain, Gulf of Lion, Tyrrhenian Sea, Strait of Sicily, Adriatic Sea and Black Sea – were gathered according to a standard methodological protocol. Maturity ogives were estimated by means of a logistic regression taking into account  total length, condition factor, sex and GSA. Obtained results evidenced a significant effect of condition factor, fish in better condition reaching maturity earlier, as well as differences in L50 values among areas and between sexes, with males reaching the maturity at lower length than females. Even though the obtained L50 estimates are relative to the spawning period only, the observed variability at the Mediterranean basin scale highlights the importance to explicitly consider the habitat peculiarities in order to provide management advices based on an ecosystem approach to fishery. (EN)
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Macroscopic maturity stage (EN)
condition factor (EN)
Black Sea. (EN)
Mediterranean Sea (EN)
geographical variability (EN)
Ελληνικό Κέντρο Θαλασσίων Ερευνών (ΕΛΚΕΘΕ)
Mediterranean Marine Science
Mediterranean Marine Science
Αγγλική γλώσσα
2021-12-31
https://ejournals.epublishing.ekt.gr/index.php/hcmr-med-mar-sc/article/view/25995
Hellenic Centre for Marine Research (EN)
1791-6763
1108-393X
Mediterranean Marine Science; Τόμ. 22 Αρ. 4 (2021): Special Issue; 858-870 (EL)
Mediterranean Marine Science; Vol. 22 No. 4 (2021): Special Issue; 858-870 (EN)
Copyright (c) 2021 Mediterranean Marine Science (EN)



*Η εύρυθμη και αδιάλειπτη λειτουργία των διαδικτυακών διευθύνσεων των συλλογών (ψηφιακό αρχείο, καρτέλα τεκμηρίου στο αποθετήριο) είναι αποκλειστική ευθύνη των αντίστοιχων Φορέων περιεχομένου.