Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea
Size at first sexual maturity (L50) represents an important life-history trait that needs to be considered in the development of management measures as it provides fundamental information for avoiding the exploitation of younger individuals. L50 is known to display variability due to fishing pressur...
Published in: | Mediterranean Marine Science |
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Online Access: | http://hdl.handle.net/10508/16142 http://hdl.handle.net/10261/323044 https://doi.org/10.12681/mms.25995 |
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ftcsic:oai:digital.csic.es:10261/323044 2024-02-11T10:06:39+01:00 Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea Ferreri, R. Genovese, S. Barra, M. Biagiotti, I. Bourdeix, J.H. De Felice, A. Gasparevic, D. Hattab, T. Iglesias, Magdalena Juretic, T. Leonori, I. Malavolti, S. Raykov, V. Saraux, C. Ticina, V. Ventero, Ana Basilone, G. Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic 2021-12-27 http://hdl.handle.net/10508/16142 http://hdl.handle.net/10261/323044 https://doi.org/10.12681/mms.25995 en eng Centro Oceanográfico de Baleares Postprint Mediterranean Marine Science, 22/4. 2021: 858-870 1108-393X http://hdl.handle.net/10508/16142 http://hdl.handle.net/10261/323044 https://doi.org/10.12681/mms.25995 50434 1791-6763 open Centro Oceanográfico de Baleares Pesquerías Macroscopic maturity stage condition factor geographical variability Mediterranean Sea Black Sea fish echo surveys surveys size variability artículo http://purl.org/coar/resource_type/c_6501 2021 ftcsic https://doi.org/10.12681/mms.25995 2024-01-16T11:46:57Z Size at first sexual maturity (L50) represents an important life-history trait that needs to be considered in the development of management measures as it provides fundamental information for avoiding the exploitation of younger individuals. L50 is known to display variability due to fishing pressure, geographical gradients, and environmental features. In this study, to investigate L50 variability among areas in the Mediterranean and Black Seas, maturity ogives of anchovies (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 subareas (GSAs), 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 a logistic regression considering total length, condition factor, sex and GSA. The obtained results showed a significant effect of the condition factor, in that fish in better condition reached maturity earlier, and the results also indicated differences in L50 values among the areas and between the sexes, with males reaching maturity at lower lengths than females. Even though the obtained L50 estimates are relative to the spawning period only, the variability observed at the Mediterranean basin scale highlights the importance of explicitly considering specific habitat characteristics when providing management advice based on an ecosystem approach for fisheries. SI Article in Journal/Newspaper North Atlantic Digital.CSIC (Spanish National Research Council) Mediterranean Marine Science 22 4 858 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Centro Oceanográfico de Baleares Pesquerías Macroscopic maturity stage condition factor geographical variability Mediterranean Sea Black Sea fish echo surveys surveys size variability |
spellingShingle |
Centro Oceanográfico de Baleares Pesquerías Macroscopic maturity stage condition factor geographical variability Mediterranean Sea Black Sea fish echo surveys surveys size variability Ferreri, R. Genovese, S. Barra, M. Biagiotti, I. Bourdeix, J.H. De Felice, A. Gasparevic, D. Hattab, T. Iglesias, Magdalena Juretic, T. Leonori, I. Malavolti, S. Raykov, V. Saraux, C. Ticina, V. Ventero, Ana Basilone, G. Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea |
topic_facet |
Centro Oceanográfico de Baleares Pesquerías Macroscopic maturity stage condition factor geographical variability Mediterranean Sea Black Sea fish echo surveys surveys size variability |
description |
Size at first sexual maturity (L50) represents an important life-history trait that needs to be considered in the development of management measures as it provides fundamental information for avoiding the exploitation of younger individuals. L50 is known to display variability due to fishing pressure, geographical gradients, and environmental features. In this study, to investigate L50 variability among areas in the Mediterranean and Black Seas, maturity ogives of anchovies (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 subareas (GSAs), 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 a logistic regression considering total length, condition factor, sex and GSA. The obtained results showed a significant effect of the condition factor, in that fish in better condition reached maturity earlier, and the results also indicated differences in L50 values among the areas and between the sexes, with males reaching maturity at lower lengths than females. Even though the obtained L50 estimates are relative to the spawning period only, the variability observed at the Mediterranean basin scale highlights the importance of explicitly considering specific habitat characteristics when providing management advice based on an ecosystem approach for fisheries. SI |
format |
Article in Journal/Newspaper |
author |
Ferreri, R. Genovese, S. Barra, M. Biagiotti, I. Bourdeix, J.H. De Felice, A. Gasparevic, D. Hattab, T. Iglesias, Magdalena Juretic, T. Leonori, I. Malavolti, S. Raykov, V. Saraux, C. Ticina, V. Ventero, Ana Basilone, G. |
author_facet |
Ferreri, R. Genovese, S. Barra, M. Biagiotti, I. Bourdeix, J.H. De Felice, A. Gasparevic, D. Hattab, T. Iglesias, Magdalena Juretic, T. Leonori, I. Malavolti, S. Raykov, V. Saraux, C. Ticina, V. Ventero, Ana Basilone, G. |
author_sort |
Ferreri, R. |
title |
Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea |
title_short |
Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea |
title_full |
Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea |
title_fullStr |
Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea |
title_full_unstemmed |
Variability in size at maturity of the European anchovy (Engraulis encrasicolus) in the Mediterranean Sea |
title_sort |
variability in size at maturity of the european anchovy (engraulis encrasicolus) in the mediterranean sea |
publishDate |
2021 |
url |
http://hdl.handle.net/10508/16142 http://hdl.handle.net/10261/323044 https://doi.org/10.12681/mms.25995 |
op_coverage |
Océan atlantique Atlantique Nord Atlantic Ocean Atlántico Norte Océano Atlántico ICES North Atlantic |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Centro Oceanográfico de Baleares Postprint Mediterranean Marine Science, 22/4. 2021: 858-870 1108-393X http://hdl.handle.net/10508/16142 http://hdl.handle.net/10261/323044 https://doi.org/10.12681/mms.25995 50434 1791-6763 |
op_rights |
open |
op_doi |
https://doi.org/10.12681/mms.25995 |
container_title |
Mediterranean Marine Science |
container_volume |
22 |
container_issue |
4 |
container_start_page |
858 |
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1790604490549755904 |