Archived DNA reveals fisheries and climate induced collapse of a major fishery

Sara Bonanomi, Loïc Pellissier, Nina Overgaard Therkildsen, Rasmus Berg Hedeholm, Anja Retzel, Dorte Meldrup, Steffen Malskær Olsen, Anders Nielsen, Christophe Pampoulie, Jakob Hemmer Hansen, Mary Wisz, Peter Grønkjær, Einar Eg Nielsen

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Abstract

Fishing and climate change impact the demography of marine fishes, but it is generally ignored that many species are made up of genetically distinct locally adapted populations that may show idiosyncratic responses to environmental and anthropogenic pressures. Here, we track 80 years of Atlantic cod (Gadus morhua) population dynamics in West Greenland using DNA from archived otoliths in combination with fish population and niche based modeling. We document how the interacting effects of climate change and high fishing pressure lead to dramatic spatiotemporal changes in the proportions and abundance of different genetic populations, and eventually drove the cod fishery to a collapse in the early 1970s. Our results highlight the relevance of fisheries management at the level of genetic populations under future scenarios of climate change
Original languageEnglish
Article number15395
JournalScientific Reports
Volume5
ISSN2045-2322
DOIs
Publication statusPublished - 2015

Cite this

Bonanomi, Sara ; Pellissier, Loïc ; Therkildsen, Nina Overgaard ; Hedeholm, Rasmus Berg ; Retzel, Anja ; Meldrup, Dorte ; Olsen, Steffen Malskær ; Nielsen, Anders ; Pampoulie, Christophe ; Hansen, Jakob Hemmer ; Wisz, Mary ; Grønkjær, Peter ; Eg Nielsen, Einar. / Archived DNA reveals fisheries and climate induced collapse of a major fishery. In: Scientific Reports. 2015 ; Vol. 5.
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title = "Archived DNA reveals fisheries and climate induced collapse of a major fishery",
abstract = "Fishing and climate change impact the demography of marine fishes, but it is generally ignored that many species are made up of genetically distinct locally adapted populations that may show idiosyncratic responses to environmental and anthropogenic pressures. Here, we track 80 years of Atlantic cod (Gadus morhua) population dynamics in West Greenland using DNA from archived otoliths in combination with fish population and niche based modeling. We document how the interacting effects of climate change and high fishing pressure lead to dramatic spatiotemporal changes in the proportions and abundance of different genetic populations, and eventually drove the cod fishery to a collapse in the early 1970s. Our results highlight the relevance of fisheries management at the level of genetic populations under future scenarios of climate change",
author = "Sara Bonanomi and Lo{\"i}c Pellissier and Therkildsen, {Nina Overgaard} and Hedeholm, {Rasmus Berg} and Anja Retzel and Dorte Meldrup and Olsen, {Steffen Malsk{\ae}r} and Anders Nielsen and Christophe Pampoulie and Hansen, {Jakob Hemmer} and Mary Wisz and Peter Gr{\o}nkj{\ae}r and {Eg Nielsen}, Einar",
year = "2015",
doi = "10.1038/srep15395",
language = "English",
volume = "5",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

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Bonanomi, S, Pellissier, L, Therkildsen, NO, Hedeholm, RB, Retzel, A, Meldrup, D, Olsen, SM, Nielsen, A, Pampoulie, C, Hansen, JH, Wisz, M, Grønkjær, P & Eg Nielsen, E 2015, 'Archived DNA reveals fisheries and climate induced collapse of a major fishery', Scientific Reports, vol. 5, 15395. https://doi.org/10.1038/srep15395

Archived DNA reveals fisheries and climate induced collapse of a major fishery. / Bonanomi, Sara; Pellissier, Loïc; Therkildsen, Nina Overgaard; Hedeholm, Rasmus Berg; Retzel, Anja; Meldrup, Dorte; Olsen, Steffen Malskær; Nielsen, Anders; Pampoulie, Christophe; Hansen, Jakob Hemmer; Wisz, Mary; Grønkjær, Peter; Eg Nielsen, Einar.

In: Scientific Reports, Vol. 5, 15395, 2015.

Research output: Contribution to journalJournal articleResearchpeer-review

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AU - Bonanomi, Sara

AU - Pellissier, Loïc

AU - Therkildsen, Nina Overgaard

AU - Hedeholm, Rasmus Berg

AU - Retzel, Anja

AU - Meldrup, Dorte

AU - Olsen, Steffen Malskær

AU - Nielsen, Anders

AU - Pampoulie, Christophe

AU - Hansen, Jakob Hemmer

AU - Wisz, Mary

AU - Grønkjær, Peter

AU - Eg Nielsen, Einar

PY - 2015

Y1 - 2015

N2 - Fishing and climate change impact the demography of marine fishes, but it is generally ignored that many species are made up of genetically distinct locally adapted populations that may show idiosyncratic responses to environmental and anthropogenic pressures. Here, we track 80 years of Atlantic cod (Gadus morhua) population dynamics in West Greenland using DNA from archived otoliths in combination with fish population and niche based modeling. We document how the interacting effects of climate change and high fishing pressure lead to dramatic spatiotemporal changes in the proportions and abundance of different genetic populations, and eventually drove the cod fishery to a collapse in the early 1970s. Our results highlight the relevance of fisheries management at the level of genetic populations under future scenarios of climate change

AB - Fishing and climate change impact the demography of marine fishes, but it is generally ignored that many species are made up of genetically distinct locally adapted populations that may show idiosyncratic responses to environmental and anthropogenic pressures. Here, we track 80 years of Atlantic cod (Gadus morhua) population dynamics in West Greenland using DNA from archived otoliths in combination with fish population and niche based modeling. We document how the interacting effects of climate change and high fishing pressure lead to dramatic spatiotemporal changes in the proportions and abundance of different genetic populations, and eventually drove the cod fishery to a collapse in the early 1970s. Our results highlight the relevance of fisheries management at the level of genetic populations under future scenarios of climate change

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