Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea
Abstract Within recent years, a slight but significant increase of European eel Anguilla anguilla (L.) recruitment has been documented, but it remains questionable whether or not the increased recruitment levels resulted in higher eel numbers at the regional scale. To detect the changes in yellow ee...
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crwiley:10.1111/fme.12505 2024-06-23T07:45:33+00:00 Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea Dorow, Malte Lewin, Wolf‐Christian Lill, Dietmar Ubl, Claus Frankowski, Jens 2021 http://dx.doi.org/10.1111/fme.12505 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12505 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12505 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Management and Ecology volume 28, issue 6, page 564-572 ISSN 0969-997X 1365-2400 journal-article 2021 crwiley https://doi.org/10.1111/fme.12505 2024-06-04T06:49:12Z Abstract Within recent years, a slight but significant increase of European eel Anguilla anguilla (L.) recruitment has been documented, but it remains questionable whether or not the increased recruitment levels resulted in higher eel numbers at the regional scale. To detect the changes in yellow eel numbers, logbook data covering a 15‐year time series of catch per unit effort (CPUE) data from the German Baltic Sea were analysed. Monthly mean catch rates were calculated for two different size classes for two passive gears: fyke and stationary trap nets. Change‐point analysis was applied to discover changes in the catch data. After a period of decreasing or constant catch rates, the fyke net data indicated that yellow eel numbers increased slightly in recent years in the Baltic Sea. Besides increasing numbers of immigrating juvenile eels, other population dynamics or conservation efforts might have added to the observed positive stock trend. Article in Journal/Newspaper Anguilla anguilla Wiley Online Library Fisheries Management and Ecology 28 6 564 572 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Within recent years, a slight but significant increase of European eel Anguilla anguilla (L.) recruitment has been documented, but it remains questionable whether or not the increased recruitment levels resulted in higher eel numbers at the regional scale. To detect the changes in yellow eel numbers, logbook data covering a 15‐year time series of catch per unit effort (CPUE) data from the German Baltic Sea were analysed. Monthly mean catch rates were calculated for two different size classes for two passive gears: fyke and stationary trap nets. Change‐point analysis was applied to discover changes in the catch data. After a period of decreasing or constant catch rates, the fyke net data indicated that yellow eel numbers increased slightly in recent years in the Baltic Sea. Besides increasing numbers of immigrating juvenile eels, other population dynamics or conservation efforts might have added to the observed positive stock trend. |
format |
Article in Journal/Newspaper |
author |
Dorow, Malte Lewin, Wolf‐Christian Lill, Dietmar Ubl, Claus Frankowski, Jens |
spellingShingle |
Dorow, Malte Lewin, Wolf‐Christian Lill, Dietmar Ubl, Claus Frankowski, Jens Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea |
author_facet |
Dorow, Malte Lewin, Wolf‐Christian Lill, Dietmar Ubl, Claus Frankowski, Jens |
author_sort |
Dorow, Malte |
title |
Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea |
title_short |
Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea |
title_full |
Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea |
title_fullStr |
Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea |
title_full_unstemmed |
Using logbook‐based catch‐rate data to detect yellow eel population trends in the southern Baltic Sea |
title_sort |
using logbook‐based catch‐rate data to detect yellow eel population trends in the southern baltic sea |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/fme.12505 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12505 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12505 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Fisheries Management and Ecology volume 28, issue 6, page 564-572 ISSN 0969-997X 1365-2400 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fme.12505 |
container_title |
Fisheries Management and Ecology |
container_volume |
28 |
container_issue |
6 |
container_start_page |
564 |
op_container_end_page |
572 |
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1802640737943158784 |