Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax)
Barriers in the estuaries of the rivers prevent the immigration of glass eels (Anguilla anguilla) arriving on the European coast every spring. This leads to an unnatural accumulation of migrating glass eels below the barriers, and this may lead to additional losses in glass eels by piscivorous fish....
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2021
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Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299584/ http://www.ncbi.nlm.nih.gov/pubmed/34697810 https://doi.org/10.1111/jfb.14933 |
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ftpubmed:oai:pubmedcentral.nih.gov:9299584 2023-05-15T13:27:28+02:00 Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax) Griffioen, Arie Benjamin Janssen, Woody Menke, Timon Wilkes, Tony Winter, Hendrik Volken 2021-11-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299584/ http://www.ncbi.nlm.nih.gov/pubmed/34697810 https://doi.org/10.1111/jfb.14933 en eng Blackwell Publishing Ltd http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299584/ http://www.ncbi.nlm.nih.gov/pubmed/34697810 http://dx.doi.org/10.1111/jfb.14933 © 2021 The Authors. Journal of Fish Biology published by John Wiley & Sons Ltd on behalf of Fisheries Society of the British Isles. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. CC-BY-NC-ND J Fish Biol Regular Papers Text 2021 ftpubmed https://doi.org/10.1111/jfb.14933 2022-07-31T02:19:44Z Barriers in the estuaries of the rivers prevent the immigration of glass eels (Anguilla anguilla) arriving on the European coast every spring. This leads to an unnatural accumulation of migrating glass eels below the barriers, and this may lead to additional losses in glass eels by piscivorous fish. The proportion of predation losses can be estimated using mark‐recapture techniques and abundance estimates in combination with stomach content analysis of piscivorous fish. Nonetheless, whether tagging transparent glass eels increases predation risk and what the digestion rate of glass eel is in piscivorous fish are unknown. This study aimed to determine whether there is an increased predation risk for tagged glass eel; it also studies glass eel digestion status in piscivorous fish after appointed time frames. A laboratory experiment with 48 trials was conducted. Tagged (visible implanted elastomer, VIE) and untagged glass eels were exposed to small (19.1–24.4 cm) and large (31.9–43.5 cm) sea bass (Dicentrarchus labrax) during a 2 h trial. In 48% of the trials, successful predation was present and 13% showed clear predation attempts in which bass did not capture glass eels. No significant difference was found in predation rate between tagged and untagged glass eels and between red and blue tagged glass eels. Large sea bass predated more, but all sizes consumed glass eel under laboratory conditions. Stomach content analysis showed intact glass eel bodies 4–6 h after ending the 2 h trial and parts of glass eel bodies up to 16–18 h. This study showed that tagging does not increase predation in mark‐recapture studies using VIE‐tags in transparent glass eel. It also shows that the proportion of predation in relation to local glass eel abundance can be estimated if stomach content analysis is conducted within 4–6 h after predation. Text Anguilla anguilla PubMed Central (PMC) Journal of Fish Biology 100 1 184 191 |
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English |
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Regular Papers |
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Regular Papers Griffioen, Arie Benjamin Janssen, Woody Menke, Timon Wilkes, Tony Winter, Hendrik Volken Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax) |
topic_facet |
Regular Papers |
description |
Barriers in the estuaries of the rivers prevent the immigration of glass eels (Anguilla anguilla) arriving on the European coast every spring. This leads to an unnatural accumulation of migrating glass eels below the barriers, and this may lead to additional losses in glass eels by piscivorous fish. The proportion of predation losses can be estimated using mark‐recapture techniques and abundance estimates in combination with stomach content analysis of piscivorous fish. Nonetheless, whether tagging transparent glass eels increases predation risk and what the digestion rate of glass eel is in piscivorous fish are unknown. This study aimed to determine whether there is an increased predation risk for tagged glass eel; it also studies glass eel digestion status in piscivorous fish after appointed time frames. A laboratory experiment with 48 trials was conducted. Tagged (visible implanted elastomer, VIE) and untagged glass eels were exposed to small (19.1–24.4 cm) and large (31.9–43.5 cm) sea bass (Dicentrarchus labrax) during a 2 h trial. In 48% of the trials, successful predation was present and 13% showed clear predation attempts in which bass did not capture glass eels. No significant difference was found in predation rate between tagged and untagged glass eels and between red and blue tagged glass eels. Large sea bass predated more, but all sizes consumed glass eel under laboratory conditions. Stomach content analysis showed intact glass eel bodies 4–6 h after ending the 2 h trial and parts of glass eel bodies up to 16–18 h. This study showed that tagging does not increase predation in mark‐recapture studies using VIE‐tags in transparent glass eel. It also shows that the proportion of predation in relation to local glass eel abundance can be estimated if stomach content analysis is conducted within 4–6 h after predation. |
format |
Text |
author |
Griffioen, Arie Benjamin Janssen, Woody Menke, Timon Wilkes, Tony Winter, Hendrik Volken |
author_facet |
Griffioen, Arie Benjamin Janssen, Woody Menke, Timon Wilkes, Tony Winter, Hendrik Volken |
author_sort |
Griffioen, Arie Benjamin |
title |
Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax) |
title_short |
Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax) |
title_full |
Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax) |
title_fullStr |
Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax) |
title_full_unstemmed |
Does tagging transparent fish increase predation risk? A laboratory study with glass eel (Anguilla anguilla) and sea bass (Dicentrarchus labrax) |
title_sort |
does tagging transparent fish increase predation risk? a laboratory study with glass eel (anguilla anguilla) and sea bass (dicentrarchus labrax) |
publisher |
Blackwell Publishing Ltd |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299584/ http://www.ncbi.nlm.nih.gov/pubmed/34697810 https://doi.org/10.1111/jfb.14933 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
J Fish Biol |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9299584/ http://www.ncbi.nlm.nih.gov/pubmed/34697810 http://dx.doi.org/10.1111/jfb.14933 |
op_rights |
© 2021 The Authors. Journal of Fish Biology published by John Wiley & Sons Ltd on behalf of Fisheries Society of the British Isles. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1111/jfb.14933 |
container_title |
Journal of Fish Biology |
container_volume |
100 |
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1 |
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184 |
op_container_end_page |
191 |
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1766398633109880832 |