Climate change and passive transport of European eel larvae
Abstract One hypothesis to explain the large decline in the recruitment of the E uropean eel ( Anguilla anguilla ) from the 1980s onwards is that a change in ocean circulation has influenced the drift of eel larvae, resulting in lower recruitment. To test this hypothesis, a simple L agrangian model...
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crwiley:10.1111/eff.12048 2024-06-02T07:55:12+00:00 Climate change and passive transport of European eel larvae Pacariz, Selma Westerberg, Håkan Björk, Göran 2013 http://dx.doi.org/10.1111/eff.12048 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feff.12048 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12048 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 23, issue 1, page 86-94 ISSN 0906-6691 1600-0633 journal-article 2013 crwiley https://doi.org/10.1111/eff.12048 2024-05-03T12:03:32Z Abstract One hypothesis to explain the large decline in the recruitment of the E uropean eel ( Anguilla anguilla ) from the 1980s onwards is that a change in ocean circulation has influenced the drift of eel larvae, resulting in lower recruitment. To test this hypothesis, a simple L agrangian model was constructed to simulate a passive drift from the spawning area in the S argasso S ea to the E uropean shelf. The simulation utilised the velocity data from a reanalysis of ocean climate, the S imple O cean D ata A ssimilation ( SODA 2.1.6), for the period 1958–2008 covering the time of regime shift in eel recruitment. The average drift time and latitudinal distribution of the arrival of eel larvae were explored for a range of constant depth levels and instantaneous mortalities. The model showed that the proportion of eel larvae carried by the N orth‐ E ast A tlantic C urrent to northern latitudes of arrival was greater before 1970, whereas there was an increase in amount of larvae being entrained into the southbound current branches after this time. The overall success of drift from the spawning area to the E ast A tlantic was not affected and clearly contradicts that this could explain the observed recruitment decline. Article in Journal/Newspaper Anguilla anguilla Wiley Online Library Ecology of Freshwater Fish 23 1 86 94 |
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Wiley Online Library |
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English |
description |
Abstract One hypothesis to explain the large decline in the recruitment of the E uropean eel ( Anguilla anguilla ) from the 1980s onwards is that a change in ocean circulation has influenced the drift of eel larvae, resulting in lower recruitment. To test this hypothesis, a simple L agrangian model was constructed to simulate a passive drift from the spawning area in the S argasso S ea to the E uropean shelf. The simulation utilised the velocity data from a reanalysis of ocean climate, the S imple O cean D ata A ssimilation ( SODA 2.1.6), for the period 1958–2008 covering the time of regime shift in eel recruitment. The average drift time and latitudinal distribution of the arrival of eel larvae were explored for a range of constant depth levels and instantaneous mortalities. The model showed that the proportion of eel larvae carried by the N orth‐ E ast A tlantic C urrent to northern latitudes of arrival was greater before 1970, whereas there was an increase in amount of larvae being entrained into the southbound current branches after this time. The overall success of drift from the spawning area to the E ast A tlantic was not affected and clearly contradicts that this could explain the observed recruitment decline. |
format |
Article in Journal/Newspaper |
author |
Pacariz, Selma Westerberg, Håkan Björk, Göran |
spellingShingle |
Pacariz, Selma Westerberg, Håkan Björk, Göran Climate change and passive transport of European eel larvae |
author_facet |
Pacariz, Selma Westerberg, Håkan Björk, Göran |
author_sort |
Pacariz, Selma |
title |
Climate change and passive transport of European eel larvae |
title_short |
Climate change and passive transport of European eel larvae |
title_full |
Climate change and passive transport of European eel larvae |
title_fullStr |
Climate change and passive transport of European eel larvae |
title_full_unstemmed |
Climate change and passive transport of European eel larvae |
title_sort |
climate change and passive transport of european eel larvae |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/eff.12048 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Feff.12048 https://onlinelibrary.wiley.com/doi/pdf/10.1111/eff.12048 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Ecology of Freshwater Fish volume 23, issue 1, page 86-94 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/eff.12048 |
container_title |
Ecology of Freshwater Fish |
container_volume |
23 |
container_issue |
1 |
container_start_page |
86 |
op_container_end_page |
94 |
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1800746799554625536 |