Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations
International audience 1. The impact of industrial fisheries on marine biodiversity is conspicuous in largepelagic vertebrate's fisheries bycatch. In seabirds, this led to the decline of manypopulations since the 1980s following the rise of global fishing effort. Bycatchmitigation measures were...
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ftccsdartic:oai:HAL:hal-03671563v1 2024-02-27T08:45:00+00:00 Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations Dasnon, Anaïs Delord, Karine Chaigne, Adrien Barbraud, Christophe Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Réserve Naturelle Nationale des Terres Australes Françaises TAAF 2022 https://hal.science/hal-03671563 https://doi.org/10.1111/1365-2664.14189 en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2664.14189 hal-03671563 https://hal.science/hal-03671563 doi:10.1111/1365-2664.14189 WOS: 000795051000001 ISSN: 0021-8901 EISSN: 1365-2664 Journal of Applied Ecology https://hal.science/hal-03671563 Journal of Applied Ecology, 2022, 59 (7), pp.1674-1685. ⟨10.1111/1365-2664.14189⟩ conservation measures capture–mark–recapture demersal longline fisheries population dynamics procellariforms southern Indian Oceanwhite-chinned petrel [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2022 ftccsdartic https://doi.org/10.1111/1365-2664.14189 2024-01-28T01:22:04Z International audience 1. The impact of industrial fisheries on marine biodiversity is conspicuous in largepelagic vertebrate's fisheries bycatch. In seabirds, this led to the decline of manypopulations since the 1980s following the rise of global fishing effort. Bycatchmitigation measures were implemented since the 2000s, but their effects on theconcerned seabird populations remain poorly quantified and understood.2. We studied the effects of bycatch mitigation measures on the demography ofthe white-chinned petrel, one of the most bycatch impacted seabirds whosepopulations suffered dramatic declines before the implementation of mitiga-tion measures. To do so we (a) built multi-event capture–recapture models toestimate the demographic parameters of a population from Possession Island(southern Indian Ocean) over 30 years, (b) assessed the effect of climate andfishery covariates on demographic parameters, (c) built a population matrixmodel to estimate stochastic growth rate according to the management in fish-eries bycatch and (d) estimated changes in breeding population density usingdistance sampling data.3. The population declined from the 1980s to the mid-2000s, while trawl andlongline fisheries occurred with no bycatch mitigation measures. The negativeeffects of fishery bycatch through additive mortality and of rat predation onbreeding success were likely the main drivers of this decline.4. Both modelled population growth rate and observed breeding densities showedan increase since the mid-2000s. We explained this trend by the improvementin survival probability following implementation of fishery bycatch mitigationmeasures and in breeding success probability with the local control of the ratpopulation and changes in sea ice conditions on foraging grounds.5. Synthesis and applications. We provide a holistic approach to assess the effects ofmanagement measures by analysing datasets from sampling methods commonlyemployed in seabird studies. Our conclusions should encourage the eradicationof invasive predatory ... Article in Journal/Newspaper Possession Island Sea ice Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Indian Possession Island ENVELOPE(171.200,171.200,-71.867,-71.867) Journal of Applied Ecology |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
conservation measures capture–mark–recapture demersal longline fisheries population dynamics procellariforms southern Indian Oceanwhite-chinned petrel [SDE]Environmental Sciences |
spellingShingle |
conservation measures capture–mark–recapture demersal longline fisheries population dynamics procellariforms southern Indian Oceanwhite-chinned petrel [SDE]Environmental Sciences Dasnon, Anaïs Delord, Karine Chaigne, Adrien Barbraud, Christophe Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
topic_facet |
conservation measures capture–mark–recapture demersal longline fisheries population dynamics procellariforms southern Indian Oceanwhite-chinned petrel [SDE]Environmental Sciences |
description |
International audience 1. The impact of industrial fisheries on marine biodiversity is conspicuous in largepelagic vertebrate's fisheries bycatch. In seabirds, this led to the decline of manypopulations since the 1980s following the rise of global fishing effort. Bycatchmitigation measures were implemented since the 2000s, but their effects on theconcerned seabird populations remain poorly quantified and understood.2. We studied the effects of bycatch mitigation measures on the demography ofthe white-chinned petrel, one of the most bycatch impacted seabirds whosepopulations suffered dramatic declines before the implementation of mitiga-tion measures. To do so we (a) built multi-event capture–recapture models toestimate the demographic parameters of a population from Possession Island(southern Indian Ocean) over 30 years, (b) assessed the effect of climate andfishery covariates on demographic parameters, (c) built a population matrixmodel to estimate stochastic growth rate according to the management in fish-eries bycatch and (d) estimated changes in breeding population density usingdistance sampling data.3. The population declined from the 1980s to the mid-2000s, while trawl andlongline fisheries occurred with no bycatch mitigation measures. The negativeeffects of fishery bycatch through additive mortality and of rat predation onbreeding success were likely the main drivers of this decline.4. Both modelled population growth rate and observed breeding densities showedan increase since the mid-2000s. We explained this trend by the improvementin survival probability following implementation of fishery bycatch mitigationmeasures and in breeding success probability with the local control of the ratpopulation and changes in sea ice conditions on foraging grounds.5. Synthesis and applications. We provide a holistic approach to assess the effects ofmanagement measures by analysing datasets from sampling methods commonlyemployed in seabird studies. Our conclusions should encourage the eradicationof invasive predatory ... |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) Réserve Naturelle Nationale des Terres Australes Françaises TAAF |
format |
Article in Journal/Newspaper |
author |
Dasnon, Anaïs Delord, Karine Chaigne, Adrien Barbraud, Christophe |
author_facet |
Dasnon, Anaïs Delord, Karine Chaigne, Adrien Barbraud, Christophe |
author_sort |
Dasnon, Anaïs |
title |
Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
title_short |
Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
title_full |
Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
title_fullStr |
Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
title_full_unstemmed |
Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
title_sort |
fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03671563 https://doi.org/10.1111/1365-2664.14189 |
long_lat |
ENVELOPE(171.200,171.200,-71.867,-71.867) |
geographic |
Indian Possession Island |
geographic_facet |
Indian Possession Island |
genre |
Possession Island Sea ice |
genre_facet |
Possession Island Sea ice |
op_source |
ISSN: 0021-8901 EISSN: 1365-2664 Journal of Applied Ecology https://hal.science/hal-03671563 Journal of Applied Ecology, 2022, 59 (7), pp.1674-1685. ⟨10.1111/1365-2664.14189⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/1365-2664.14189 hal-03671563 https://hal.science/hal-03671563 doi:10.1111/1365-2664.14189 WOS: 000795051000001 |
op_doi |
https://doi.org/10.1111/1365-2664.14189 |
container_title |
Journal of Applied Ecology |
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1792054058666688512 |