Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels"
The dramatic decline of European eel ( Anguilla anguilla ) populations over recent decades has attracted considerable attention and concern. Furthermore, little is known about the sensitivity of the early stages of eels to projected future environmental change. Here, we investigated, for the first t...
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ftdatacite:10.6084/m9.figshare.c.4369310 2023-05-15T13:27:45+02:00 Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels" Borges, Francisco O. Santos, Catarina P. Sampaio, Eduardo Figueiredo, Cátia Paula, José Ricardo Antunes, Carlos Rosa, Rui Grilo, Tiago F. 2019 https://dx.doi.org/10.6084/m9.figshare.c.4369310 https://rs.figshare.com/collections/Supplementary_material_from_Ocean_warming_and_acidification_may_challenge_the_riverward_migration_of_glass_eels_/4369310 unknown Figshare https://dx.doi.org/10.1098/rsbl.2018.0627 CC BY 4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Ecology FOS Biological sciences 60801 Animal Behaviour Collection article 2019 ftdatacite https://doi.org/10.6084/m9.figshare.c.4369310 https://doi.org/10.1098/rsbl.2018.0627 2021-11-05T12:55:41Z The dramatic decline of European eel ( Anguilla anguilla ) populations over recent decades has attracted considerable attention and concern. Furthermore, little is known about the sensitivity of the early stages of eels to projected future environmental change. Here, we investigated, for the first time, the potential combined effects of ocean warming (OW; Δ + 4°C; 18°C) and acidification (OA; Δ − 0.4 pH units) on the survival and migratory behaviour of A. anguilla glass eels, namely their preference towards riverine cues (freshwater and geosmin). Recently arrived individuals were exposed to isolated and combined OW and OA conditions for 100 days, adjusting for the salinity gradients associated with upstream migration. A two-choice test was used to investigate migratory activity and shifts in preference towards freshwater environments. While OW decreased survival and increased migratory activity, OA appears to hinder migratory response, reducing the preference for riverine cues. Our results suggest that future conditions could potentially favour an early settlement of glass eels, reducing the proportion of fully migratory individuals. Further research into the effects of climate change on eel migration and habitat selection is needed to implement efficient conservation plans for this critically endangered species. Article in Journal/Newspaper Anguilla anguilla European eel DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Ecology FOS Biological sciences 60801 Animal Behaviour |
spellingShingle |
Ecology FOS Biological sciences 60801 Animal Behaviour Borges, Francisco O. Santos, Catarina P. Sampaio, Eduardo Figueiredo, Cátia Paula, José Ricardo Antunes, Carlos Rosa, Rui Grilo, Tiago F. Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels" |
topic_facet |
Ecology FOS Biological sciences 60801 Animal Behaviour |
description |
The dramatic decline of European eel ( Anguilla anguilla ) populations over recent decades has attracted considerable attention and concern. Furthermore, little is known about the sensitivity of the early stages of eels to projected future environmental change. Here, we investigated, for the first time, the potential combined effects of ocean warming (OW; Δ + 4°C; 18°C) and acidification (OA; Δ − 0.4 pH units) on the survival and migratory behaviour of A. anguilla glass eels, namely their preference towards riverine cues (freshwater and geosmin). Recently arrived individuals were exposed to isolated and combined OW and OA conditions for 100 days, adjusting for the salinity gradients associated with upstream migration. A two-choice test was used to investigate migratory activity and shifts in preference towards freshwater environments. While OW decreased survival and increased migratory activity, OA appears to hinder migratory response, reducing the preference for riverine cues. Our results suggest that future conditions could potentially favour an early settlement of glass eels, reducing the proportion of fully migratory individuals. Further research into the effects of climate change on eel migration and habitat selection is needed to implement efficient conservation plans for this critically endangered species. |
format |
Article in Journal/Newspaper |
author |
Borges, Francisco O. Santos, Catarina P. Sampaio, Eduardo Figueiredo, Cátia Paula, José Ricardo Antunes, Carlos Rosa, Rui Grilo, Tiago F. |
author_facet |
Borges, Francisco O. Santos, Catarina P. Sampaio, Eduardo Figueiredo, Cátia Paula, José Ricardo Antunes, Carlos Rosa, Rui Grilo, Tiago F. |
author_sort |
Borges, Francisco O. |
title |
Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels" |
title_short |
Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels" |
title_full |
Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels" |
title_fullStr |
Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels" |
title_full_unstemmed |
Supplementary material from "Ocean warming and acidification may challenge the riverward migration of glass eels" |
title_sort |
supplementary material from "ocean warming and acidification may challenge the riverward migration of glass eels" |
publisher |
Figshare |
publishDate |
2019 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.4369310 https://rs.figshare.com/collections/Supplementary_material_from_Ocean_warming_and_acidification_may_challenge_the_riverward_migration_of_glass_eels_/4369310 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_relation |
https://dx.doi.org/10.1098/rsbl.2018.0627 |
op_rights |
CC BY 4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.4369310 https://doi.org/10.1098/rsbl.2018.0627 |
_version_ |
1766400156081586176 |