Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries
The life history strategies of fishes can be defined by specific combinations of demographic traits that influence species performances depending on environmental features. Hence, the constraints imposed by the local conditions restrict the range of successful strategies by excluding species poorly...
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00054432 2023-05-15T17:38:37+02:00 Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries Teichert, N. Pasquaud, S. Borja, A. Chust, G. Uriarte, A. Lepage, M. IRSTEA BORDEAUX UR EABX FRA UNIVERSIDAD DE LISBOA MARE LISBOA PRT AZTI MARINE RESEARCH DIVISION PASAIA ESP 2017 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00054432 Anglais eng https://irsteadoc.irstea.fr/cemoa/PUB00054432 Date de dépôt: 2017-02-22 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). 48428 STRESS ESTUAIRE POISSON ASSEMBLAGE FAUNISTIQUE SALINITE DEMOGRAPHIE BIODIVERSITE estuaries fish faunistic assemblages salinity demography biodiversity Article de revue scientifique à comité de lecture 2017 ftcemoa 2021-06-29T11:51:18Z The life history strategies of fishes can be defined by specific combinations of demographic traits that influence species performances depending on environmental features. Hence, the constraints imposed by the local conditions restrict the range of successful strategies by excluding species poorly adapted. In the present study, we compared the demographic strategies of fish caught in 47 estuaries of the North East Atlantic coast, aiming to determine the specific attributes of resident species and test for changes in trait associations along the environmental gradients. Eight demographic traits were considered to project our findings within a conceptual triangular model, composed on three endpoint strategies: (i) periodic (large size, long generation time, high fecundity); (ii) opportunistic (small size, short generation time, high reproductive effort); and (iii) equilibrium (low fecundity, large egg size, parental care). We demonstrated that various life history strategies co-exist in estuaries, but equilibrium species were scarce and restricted to euhaline open-water. Resident species form a specialised assemblage adapted to high spatiotemporal variability of estuarine conditions, i.e. opportunistic attributes associated with parental care. Even with these singular attributes, our findings revealed changes in distribution of resident species across the estuarine gradients linked to their life history traits. Among other patterns, the diversity of life history strategies significantly decreased from euhaline to oligohaline areas and along gradient of human disturbances. These trends were associated with a convergence of species traits to- ward short generation times, suggesting that long-lived species with late maturation are more severely impacted by disturbance and environmental stress. Article in Journal/Newspaper North East Atlantic Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
STRESS ESTUAIRE POISSON ASSEMBLAGE FAUNISTIQUE SALINITE DEMOGRAPHIE BIODIVERSITE estuaries fish faunistic assemblages salinity demography biodiversity |
spellingShingle |
STRESS ESTUAIRE POISSON ASSEMBLAGE FAUNISTIQUE SALINITE DEMOGRAPHIE BIODIVERSITE estuaries fish faunistic assemblages salinity demography biodiversity Teichert, N. Pasquaud, S. Borja, A. Chust, G. Uriarte, A. Lepage, M. Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries |
topic_facet |
STRESS ESTUAIRE POISSON ASSEMBLAGE FAUNISTIQUE SALINITE DEMOGRAPHIE BIODIVERSITE estuaries fish faunistic assemblages salinity demography biodiversity |
description |
The life history strategies of fishes can be defined by specific combinations of demographic traits that influence species performances depending on environmental features. Hence, the constraints imposed by the local conditions restrict the range of successful strategies by excluding species poorly adapted. In the present study, we compared the demographic strategies of fish caught in 47 estuaries of the North East Atlantic coast, aiming to determine the specific attributes of resident species and test for changes in trait associations along the environmental gradients. Eight demographic traits were considered to project our findings within a conceptual triangular model, composed on three endpoint strategies: (i) periodic (large size, long generation time, high fecundity); (ii) opportunistic (small size, short generation time, high reproductive effort); and (iii) equilibrium (low fecundity, large egg size, parental care). We demonstrated that various life history strategies co-exist in estuaries, but equilibrium species were scarce and restricted to euhaline open-water. Resident species form a specialised assemblage adapted to high spatiotemporal variability of estuarine conditions, i.e. opportunistic attributes associated with parental care. Even with these singular attributes, our findings revealed changes in distribution of resident species across the estuarine gradients linked to their life history traits. Among other patterns, the diversity of life history strategies significantly decreased from euhaline to oligohaline areas and along gradient of human disturbances. These trends were associated with a convergence of species traits to- ward short generation times, suggesting that long-lived species with late maturation are more severely impacted by disturbance and environmental stress. |
author2 |
IRSTEA BORDEAUX UR EABX FRA UNIVERSIDAD DE LISBOA MARE LISBOA PRT AZTI MARINE RESEARCH DIVISION PASAIA ESP |
format |
Article in Journal/Newspaper |
author |
Teichert, N. Pasquaud, S. Borja, A. Chust, G. Uriarte, A. Lepage, M. |
author_facet |
Teichert, N. Pasquaud, S. Borja, A. Chust, G. Uriarte, A. Lepage, M. |
author_sort |
Teichert, N. |
title |
Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries |
title_short |
Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries |
title_full |
Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries |
title_fullStr |
Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries |
title_full_unstemmed |
Living under stressful conditions: Fish life history strategies across environmental gradients in estuaries |
title_sort |
living under stressful conditions: fish life history strategies across environmental gradients in estuaries |
publishDate |
2017 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00054432 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
48428 |
op_relation |
https://irsteadoc.irstea.fr/cemoa/PUB00054432 |
op_rights |
Date de dépôt: 2017-02-22 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). |
_version_ |
1766139144231190528 |