Genomic tools for management and conservation of Atlantic cod in a coastal marine protected area

Marion Sinclair-Waters (), Paul Bentzen, Corey Morris, Daniel Ruzzante, Matthew Kent, Sigbjørn Lien and Ian Bradbury
Additional contact information
Marion Sinclair-Waters: Dalhousie University [Halifax]
Paul Bentzen: Dalhousie University [Halifax]
Corey Morris: NWAFC - Northwest Atlantic Fisheries Centre - DFO - Fisheries and Oceans Canada
Daniel Ruzzante: Dalhousie University [Halifax]
Matthew Kent: NMBU - Norwegian University of Life Sciences, Centre for Integrative Genetics - NMBU - Norwegian University of Life Sciences
Sigbjørn Lien: NMBU - Norwegian University of Life Sciences, Centre for Integrative Genetics - NMBU - Norwegian University of Life Sciences
Ian Bradbury: Dalhousie University [Halifax], NWAFC - Northwest Atlantic Fisheries Centre - DFO - Fisheries and Oceans Canada

Post-Print from HAL

Abstract: Marine protected areas (MPAs) can serve as effective tools for the management and conservation of exploited marine species. The Gilbert Bay MPA in coastal Labrador was created to protect a genetically distinct population of Atlantic cod (Gadus morhua); however, decreases in abundance continue to occur potentially due to exploitation outside the MPA. We developed a single-nucleotide polymorphism (SNP) panel to identify Gilbert Bay cod in areas outside MPA boundaries where mixing with offshore cod occurs. In total, 361 individuals from Gilbert Bay, surrounding areas, and offshore were genotyped for 10 913 SNPs. Using F ST rankings and guided regularized random forest, we selected 23 SNPs that together generate 100% accuracy in individual assignment and accurately estimate the proportion of Gilbert Bay cod in fishery samples from sites outside MPA boundaries: on average, fishery samples included 17.3% Gilbert Bay cod. Estimates of effective population size for the Gilbert Bay population ranged from 655 to 1114. Our findings demonstrate the power of using genomic approaches for management of an exploited marine species and enhancing the design of MPAs.

Date: 2018-11
Note: View the original document on HAL open archive server: https://hal.science/hal-04828052v1
References: View references in EconPapers View complete reference list from CitEc
Citations:

Published in Canadian Journal of Fisheries and Aquatic Sciences, 2018, 75 (11), pp.1915-1925. ⟨10.1139/cjfas-2017-0254⟩

Downloads: (external link)
https://hal.science/hal-04828052v1/document (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-04828052

DOI: 10.1139/cjfas-2017-0254

Access Statistics for this paper

More papers in Post-Print from HAL
Bibliographic data for series maintained by CCSD ().