Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery
Stocking is often used to supplement wild populations that are overexploited or have collapsed, yet it is unclear how this affects the genetic diversity of marine invertebrate populations. During the 1970s, a lobster stock enhancement programme was carried out around the island of Corsica in the Med...
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ftzenodo:oai:zenodo.org:3860840 2023-05-15T16:08:47+02:00 Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery Jenkins, Tom Ellis, Charlie Durieux, Eric Filippi, Jean-José Bracconi, Jérémy Stevens, Jamie 2021-04-13 https://zenodo.org/record/3860840 https://doi.org/10.5061/dryad.cvdncjt1d unknown https://zenodo.org/communities/dryad https://zenodo.org/record/3860840 https://doi.org/10.5061/dryad.cvdncjt1d oai:zenodo.org:3860840 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Stocking European lobster Atlantic Genetic assignment Conservation translocation Single Nucleotide Polymorphism SNP panel hatchery info:eu-repo/semantics/other dataset 2021 ftzenodo https://doi.org/10.5061/dryad.cvdncjt1d 2023-03-10T13:48:29Z Stocking is often used to supplement wild populations that are overexploited or have collapsed, yet it is unclear how this affects the genetic diversity of marine invertebrate populations. During the 1970s, a lobster stock enhancement programme was carried out around the island of Corsica in the Mediterranean using individuals translocated from the Atlantic coast of France. This included the release of thousands of hatchery-reared post-larval lobsters and several adult individuals, but no monitoring plan was established to assess whether these animals survived and recruited to the population. In this study, we sampled European lobster (Homarus gammarus) individuals caught around Corsica and tested whether they showed Atlantic ancestry. Due to a natural marked phylogeographic break between Atlantic and Mediterranean lobsters, we hypothesised that lobsters with dominant (>0.50) Atlantic ancestry were descended from historical stocking releases. Twenty Corsican lobsters were genotyped at 79 single nucleotide polymorphisms and assignment analysis showed that the majority (13) had dominant Atlantic ancestry. This suggests that the hatchery stocking programme carried out in Corsica during the 1970s, using individuals translocated from the Atlantic coast of France, has likely augmented local recruitment but at a cost of altering the genetic structure of the Corsican lobster population. 1.map_corsica.R R script to plot Figure 2. 2.quality_control_corsica.R R script used to analyse Corsica genotypes. 3.assignment_corsica.R R script used to perform discriminant analysis of principal components and assignment analyses. Data A zip file containing all data files associated with the R scripts. Dataset European lobster Homarus gammarus Zenodo |
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Zenodo |
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ftzenodo |
language |
unknown |
topic |
Stocking European lobster Atlantic Genetic assignment Conservation translocation Single Nucleotide Polymorphism SNP panel hatchery |
spellingShingle |
Stocking European lobster Atlantic Genetic assignment Conservation translocation Single Nucleotide Polymorphism SNP panel hatchery Jenkins, Tom Ellis, Charlie Durieux, Eric Filippi, Jean-José Bracconi, Jérémy Stevens, Jamie Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery |
topic_facet |
Stocking European lobster Atlantic Genetic assignment Conservation translocation Single Nucleotide Polymorphism SNP panel hatchery |
description |
Stocking is often used to supplement wild populations that are overexploited or have collapsed, yet it is unclear how this affects the genetic diversity of marine invertebrate populations. During the 1970s, a lobster stock enhancement programme was carried out around the island of Corsica in the Mediterranean using individuals translocated from the Atlantic coast of France. This included the release of thousands of hatchery-reared post-larval lobsters and several adult individuals, but no monitoring plan was established to assess whether these animals survived and recruited to the population. In this study, we sampled European lobster (Homarus gammarus) individuals caught around Corsica and tested whether they showed Atlantic ancestry. Due to a natural marked phylogeographic break between Atlantic and Mediterranean lobsters, we hypothesised that lobsters with dominant (>0.50) Atlantic ancestry were descended from historical stocking releases. Twenty Corsican lobsters were genotyped at 79 single nucleotide polymorphisms and assignment analysis showed that the majority (13) had dominant Atlantic ancestry. This suggests that the hatchery stocking programme carried out in Corsica during the 1970s, using individuals translocated from the Atlantic coast of France, has likely augmented local recruitment but at a cost of altering the genetic structure of the Corsican lobster population. 1.map_corsica.R R script to plot Figure 2. 2.quality_control_corsica.R R script used to analyse Corsica genotypes. 3.assignment_corsica.R R script used to perform discriminant analysis of principal components and assignment analyses. Data A zip file containing all data files associated with the R scripts. |
format |
Dataset |
author |
Jenkins, Tom Ellis, Charlie Durieux, Eric Filippi, Jean-José Bracconi, Jérémy Stevens, Jamie |
author_facet |
Jenkins, Tom Ellis, Charlie Durieux, Eric Filippi, Jean-José Bracconi, Jérémy Stevens, Jamie |
author_sort |
Jenkins, Tom |
title |
Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery |
title_short |
Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery |
title_full |
Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery |
title_fullStr |
Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery |
title_full_unstemmed |
Historical translocations and stocking alter the genetic structure of a Mediterranean lobster fishery |
title_sort |
historical translocations and stocking alter the genetic structure of a mediterranean lobster fishery |
publishDate |
2021 |
url |
https://zenodo.org/record/3860840 https://doi.org/10.5061/dryad.cvdncjt1d |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/3860840 https://doi.org/10.5061/dryad.cvdncjt1d oai:zenodo.org:3860840 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.cvdncjt1d |
_version_ |
1766404803710156800 |