Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations ...

• Main Authors: Dasnon, Anaïs, Delord, Karine, Chaigne, Adrien, Barbraud, Christophe
• Format: Dataset
• Language: English
• Published: Dryad 2022
• Subjects: FOS Natural sciences; capture mark recapture; distance sampling; Population dynamics; Seabirds; Indian; Possession Island
• Online Access: https://dx.doi.org/10.5061/dryad.1zcrjdfts; https://datadryad.org/stash/dataset/doi:10.5061/dryad.1zcrjdfts

The impact of industrial fisheries on marine biodiversity is conspicuous in large pelagic vertebrate fisheries bycatch. In seabirds, this led to the decline of many populations since the 1980s following the rise of global fishing efforts. Bycatch mitigation measures were implemented in the 2000s, but their effects on the concerned seabird populations remain poorly quantified and understood. We studied the effects of bycatch mitigation measures on the demography of the white-chinned petrel, one of the most bycatch impacted seabirds whose populations suffered dramatic declines before the implementation of mitigation measures. To do so we 1) built multi-event capture-recapture models to estimate the demographic parameters of a population from Possession Island (southern Indian Ocean) over thirty years, 2) assessed the effect of climate and fishery covariates on demographic parameters, 3) built a population matrix model to estimate stochastic growth rate according to the management in fisheries bycatch, and 4) ... : Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations See supplementary: Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations. Here we also provide the capture-mark-recapture and distance sampling dataset we used for the study: Distance sampling data are formatted to be analysed with the software Distance (http://distancesampling.org/Distance) or with the R packages 'mrds' and 'Distance' (http://distancesampling.org/R). See the files "transects_WCP_Crozet_Pointe_Basse_2011-2012.txt" and "transects_WCP_Crozet_Pointe_Basse_2017-2018.txt". All distance measures are in metres. Capture-mark-recapture data are the life history of the white-chinned petrel from the 1986/1987 breeding season to the 2017/2018 breeding season. Those datasets are formatted to be analysed with the software E-SURGE (https://www.cefe.cnrs.fr/fr/recherche/bc/bbp/1045-desc/264-logiciel). See the files ...