From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River
The habitat use of eels during the development of sedentary behavior, which depends on the animals’ body size, is unknown. Our objective was to analyze, for two years, the changes in the home range of a population of European eel (Anguilla anguilla, Linnaeus, 1758) in Southern Europe in relation to...
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ftmdpi:oai:mdpi.com:/2410-3888/4/3/43/ 2023-08-20T03:59:42+02:00 From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River Mercedes Herrera Raquel Moreno-Valcárcel Ramón De Miguel Rubio Carlos Fernández-Delgado agris 2019-08-13 application/pdf https://doi.org/10.3390/fishes4030043 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/fishes4030043 https://creativecommons.org/licenses/by/4.0/ Fishes; Volume 4; Issue 3; Pages: 43 mark-recapture distance-weighted sampling local movements space use sedentary behaviour environmental effects Text 2019 ftmdpi https://doi.org/10.3390/fishes4030043 2023-07-31T22:31:07Z The habitat use of eels during the development of sedentary behavior, which depends on the animals’ body size, is unknown. Our objective was to analyze, for two years, the changes in the home range of a population of European eel (Anguilla anguilla, Linnaeus, 1758) in Southern Europe in relation to the animals’ body length (TL), and the influence of environmental factors (water temperature and flow) on the local movements of this population through observation of their sedentary behavior. We used a previously-validated mark–recapture methodology, obtaining a low deviation in the estimation of the extension of the eels’ movements. Our results revealed relatively short movements in relation to other populations, and we hypothesize that this could be related to the high habitat diversity and low eel population density in the study area. The home range size showed a high variability and dispersion among the smallest eels, however, as TL increased, the variability of home range size decreased, and home ranges were larger. These changes could be associated with the acquisition of a sedentary lifestyle. Once eels had become sedentary, an environmental pattern was observed between their movements and the water temperature and flow, with larger movements observed as the flow increased and water temperature decreased. This suggests that the temporal and spatial scales of observation are of crucial importance for monitoring eel populations and for the study of population size structure, population dynamics, and biology, which can be used to improve conservation strategies. Text Anguilla anguilla MDPI Open Access Publishing Fishes 4 3 43 |
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MDPI Open Access Publishing |
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English |
topic |
mark-recapture distance-weighted sampling local movements space use sedentary behaviour environmental effects |
spellingShingle |
mark-recapture distance-weighted sampling local movements space use sedentary behaviour environmental effects Mercedes Herrera Raquel Moreno-Valcárcel Ramón De Miguel Rubio Carlos Fernández-Delgado From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River |
topic_facet |
mark-recapture distance-weighted sampling local movements space use sedentary behaviour environmental effects |
description |
The habitat use of eels during the development of sedentary behavior, which depends on the animals’ body size, is unknown. Our objective was to analyze, for two years, the changes in the home range of a population of European eel (Anguilla anguilla, Linnaeus, 1758) in Southern Europe in relation to the animals’ body length (TL), and the influence of environmental factors (water temperature and flow) on the local movements of this population through observation of their sedentary behavior. We used a previously-validated mark–recapture methodology, obtaining a low deviation in the estimation of the extension of the eels’ movements. Our results revealed relatively short movements in relation to other populations, and we hypothesize that this could be related to the high habitat diversity and low eel population density in the study area. The home range size showed a high variability and dispersion among the smallest eels, however, as TL increased, the variability of home range size decreased, and home ranges were larger. These changes could be associated with the acquisition of a sedentary lifestyle. Once eels had become sedentary, an environmental pattern was observed between their movements and the water temperature and flow, with larger movements observed as the flow increased and water temperature decreased. This suggests that the temporal and spatial scales of observation are of crucial importance for monitoring eel populations and for the study of population size structure, population dynamics, and biology, which can be used to improve conservation strategies. |
format |
Text |
author |
Mercedes Herrera Raquel Moreno-Valcárcel Ramón De Miguel Rubio Carlos Fernández-Delgado |
author_facet |
Mercedes Herrera Raquel Moreno-Valcárcel Ramón De Miguel Rubio Carlos Fernández-Delgado |
author_sort |
Mercedes Herrera |
title |
From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River |
title_short |
From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River |
title_full |
From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River |
title_fullStr |
From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River |
title_full_unstemmed |
From Transient to Sedentary? Changes in the Home Range Size and Environmental Patterns of Movements of European Eels (Anguilla anguilla) in a Mediterranean River |
title_sort |
from transient to sedentary? changes in the home range size and environmental patterns of movements of european eels (anguilla anguilla) in a mediterranean river |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/fishes4030043 |
op_coverage |
agris |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Fishes; Volume 4; Issue 3; Pages: 43 |
op_relation |
https://dx.doi.org/10.3390/fishes4030043 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/fishes4030043 |
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Fishes |
container_volume |
4 |
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3 |
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43 |
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