Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons
The European eel (Anguilla anguilla, Linnaeus 1758) is a critically endangered species that completes its life cycle between the freshwaters of Europe (and North Africa) and spawning grounds in the Sargasso Sea. Its marine larvae are planktonic and metamorphose into post-larval glass eels near the c...
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Online Access: | https://hdl.handle.net/11392/2472962 https://doi.org/10.1016/j.ecss.2021.107668 https://www.sciencedirect.com/science/article/pii/S0272771421005175 |
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ftunivferrarair:oai:sfera.unife.it:11392/2472962 2024-06-23T07:45:32+00:00 Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons Lanzoni M. Gavioli A. Castaldelli G. Aschonitis V. Milardi M. Lanzoni, M. Gavioli, A. Castaldelli, G. Aschonitis, V. Milardi, M. 2022 STAMPA https://hdl.handle.net/11392/2472962 https://doi.org/10.1016/j.ecss.2021.107668 https://www.sciencedirect.com/science/article/pii/S0272771421005175 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000723760300004 volume:264 firstpage:107668-1 lastpage:107668-9 numberofpages:9 journal:ESTUARINE, COASTAL AND SHELF SCIENCE https://hdl.handle.net/11392/2472962 doi:10.1016/j.ecss.2021.107668 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85119702442 https://www.sciencedirect.com/science/article/pii/S0272771421005175 info:eu-repo/semantics/closedAccess Anguilla Anguilla European eel Lagoon Meteorological factor Moon Recruitment Tide Wind info:eu-repo/semantics/article 2022 ftunivferrarair https://doi.org/10.1016/j.ecss.2021.107668 2024-05-27T23:47:05Z The European eel (Anguilla anguilla, Linnaeus 1758) is a critically endangered species that completes its life cycle between the freshwaters of Europe (and North Africa) and spawning grounds in the Sargasso Sea. Its marine larvae are planktonic and metamorphose into post-larval glass eels near the coast. The relationship between environmental variables and the migration of glass eels into brackish water and estuaries is not well understood, but has important implications for European eel conservation and management. Using linear mixed effects (LME) models, we investigated the combined role of meteorological (wind direction and strength and rainfall), oceanographical (tide amplitude), astronomical (moon phase and illumination), temporal and water quality variables on the timing and magnitude of glass eel migration from marine to brackish waters in the Comacchio Lagoon, Northern Adriatic Sea. We used this site as a test case because it was historically prominent in glass eel wild harvest for extensive aquaculture in the Mediterranean region. We found that meteorological factors and tide amplitude had a weak effect on the migration of glass eels into the lagoon. On the contrary, astronomical variables strongly influenced glass eel movement, with waxing phases and intermediate illumination enhancing movement towards the lagoon. We also identified at least two distinct migration pulses during our study period, which were not affected by temporal and water quality variables. Temporal and water quality variables affected body size of glass eels, with bigger glass eels caught later in the season. Identifying the importance of environmental variables affecting glass eels recruitment to brackish waters can help promoting eel stocks restoration through local management. Article in Journal/Newspaper Anguilla anguilla European eel Università degli Studi di Ferrara: CINECA IRIS Estuarine, Coastal and Shelf Science 264 107668 |
institution |
Open Polar |
collection |
Università degli Studi di Ferrara: CINECA IRIS |
op_collection_id |
ftunivferrarair |
language |
English |
topic |
Anguilla Anguilla European eel Lagoon Meteorological factor Moon Recruitment Tide Wind |
spellingShingle |
Anguilla Anguilla European eel Lagoon Meteorological factor Moon Recruitment Tide Wind Lanzoni M. Gavioli A. Castaldelli G. Aschonitis V. Milardi M. Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons |
topic_facet |
Anguilla Anguilla European eel Lagoon Meteorological factor Moon Recruitment Tide Wind |
description |
The European eel (Anguilla anguilla, Linnaeus 1758) is a critically endangered species that completes its life cycle between the freshwaters of Europe (and North Africa) and spawning grounds in the Sargasso Sea. Its marine larvae are planktonic and metamorphose into post-larval glass eels near the coast. The relationship between environmental variables and the migration of glass eels into brackish water and estuaries is not well understood, but has important implications for European eel conservation and management. Using linear mixed effects (LME) models, we investigated the combined role of meteorological (wind direction and strength and rainfall), oceanographical (tide amplitude), astronomical (moon phase and illumination), temporal and water quality variables on the timing and magnitude of glass eel migration from marine to brackish waters in the Comacchio Lagoon, Northern Adriatic Sea. We used this site as a test case because it was historically prominent in glass eel wild harvest for extensive aquaculture in the Mediterranean region. We found that meteorological factors and tide amplitude had a weak effect on the migration of glass eels into the lagoon. On the contrary, astronomical variables strongly influenced glass eel movement, with waxing phases and intermediate illumination enhancing movement towards the lagoon. We also identified at least two distinct migration pulses during our study period, which were not affected by temporal and water quality variables. Temporal and water quality variables affected body size of glass eels, with bigger glass eels caught later in the season. Identifying the importance of environmental variables affecting glass eels recruitment to brackish waters can help promoting eel stocks restoration through local management. |
author2 |
Lanzoni, M. Gavioli, A. Castaldelli, G. Aschonitis, V. Milardi, M. |
format |
Article in Journal/Newspaper |
author |
Lanzoni M. Gavioli A. Castaldelli G. Aschonitis V. Milardi M. |
author_facet |
Lanzoni M. Gavioli A. Castaldelli G. Aschonitis V. Milardi M. |
author_sort |
Lanzoni M. |
title |
Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons |
title_short |
Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons |
title_full |
Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons |
title_fullStr |
Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons |
title_full_unstemmed |
Swoon over the moon: The influence of environmental factors on glass eels entering Mediterranean coastal lagoons |
title_sort |
swoon over the moon: the influence of environmental factors on glass eels entering mediterranean coastal lagoons |
publishDate |
2022 |
url |
https://hdl.handle.net/11392/2472962 https://doi.org/10.1016/j.ecss.2021.107668 https://www.sciencedirect.com/science/article/pii/S0272771421005175 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000723760300004 volume:264 firstpage:107668-1 lastpage:107668-9 numberofpages:9 journal:ESTUARINE, COASTAL AND SHELF SCIENCE https://hdl.handle.net/11392/2472962 doi:10.1016/j.ecss.2021.107668 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85119702442 https://www.sciencedirect.com/science/article/pii/S0272771421005175 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.ecss.2021.107668 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
264 |
container_start_page |
107668 |
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