Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance
Flemish Cap cod collapsed in the early 90’s after facing multiple threats due to climate variability and anthropogenic pressures. A master 35-year cod growth chronology was reconstructed in the present study by using sclerochronology techniques. Three additional chronologies were developed to accoun...
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ftdoajarticles:oai:doaj.org/article:f138b7bf1e24422783e98ae91cf25339 2023-05-15T15:27:40+02:00 Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance Raquel Ruiz-Díaz Rosario Dominguez-Petit Fran Saborido-Rey 2022-05-01T00:00:00Z https://doi.org/10.3389/fmars.2022.876488 https://doaj.org/article/f138b7bf1e24422783e98ae91cf25339 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.876488/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.876488 https://doaj.org/article/f138b7bf1e24422783e98ae91cf25339 Frontiers in Marine Science, Vol 9 (2022) Gadus morhua life-history sclerochronology climate change fishing-induced evolution mixed-effects modeling Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.876488 2022-12-31T03:12:44Z Flemish Cap cod collapsed in the early 90’s after facing multiple threats due to climate variability and anthropogenic pressures. A master 35-year cod growth chronology was reconstructed in the present study by using sclerochronology techniques. Three additional chronologies were developed to account for the age-dependent effect of maturity and fishing intensity on growth. All chronologies showed that cod growth has decreased over the years and it is currently at the minimum level in the historic of data series. Hierarchical mixed-effects models were applied to the master chronology to identify extrinsic drivers of growth. The master chronology was divided into 3 periods: Premoratorium (1988-1998), Moratorium (1999-2009), and Postmoratorium (2010-2019). Our results showed that drivers of cod growth in the Flemish Cap varied between periods (Premoratorium: bottom temperature and fishing mortality, Moratorium: cod and pandalus abundance, and Postmoratorium: cod abundance and thickness of the cold intermediate layer). Our results suggest that density-dependence processes, food availability, and global warming may be behind the lack of recovery of the Flemish Cap cod stock. The Flemish Cap cod growth chronology shows variations on growth over time and identifies its drivers, having the potential to be included in the NAFO stock assessments or to be used to set dynamic reference points that guarantees the stock sustainability. Article in Journal/Newspaper atlantic cod Gadus morhua Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Gadus morhua life-history sclerochronology climate change fishing-induced evolution mixed-effects modeling Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Gadus morhua life-history sclerochronology climate change fishing-induced evolution mixed-effects modeling Science Q General. Including nature conservation geographical distribution QH1-199.5 Raquel Ruiz-Díaz Rosario Dominguez-Petit Fran Saborido-Rey Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance |
topic_facet |
Gadus morhua life-history sclerochronology climate change fishing-induced evolution mixed-effects modeling Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Flemish Cap cod collapsed in the early 90’s after facing multiple threats due to climate variability and anthropogenic pressures. A master 35-year cod growth chronology was reconstructed in the present study by using sclerochronology techniques. Three additional chronologies were developed to account for the age-dependent effect of maturity and fishing intensity on growth. All chronologies showed that cod growth has decreased over the years and it is currently at the minimum level in the historic of data series. Hierarchical mixed-effects models were applied to the master chronology to identify extrinsic drivers of growth. The master chronology was divided into 3 periods: Premoratorium (1988-1998), Moratorium (1999-2009), and Postmoratorium (2010-2019). Our results showed that drivers of cod growth in the Flemish Cap varied between periods (Premoratorium: bottom temperature and fishing mortality, Moratorium: cod and pandalus abundance, and Postmoratorium: cod abundance and thickness of the cold intermediate layer). Our results suggest that density-dependence processes, food availability, and global warming may be behind the lack of recovery of the Flemish Cap cod stock. The Flemish Cap cod growth chronology shows variations on growth over time and identifies its drivers, having the potential to be included in the NAFO stock assessments or to be used to set dynamic reference points that guarantees the stock sustainability. |
format |
Article in Journal/Newspaper |
author |
Raquel Ruiz-Díaz Rosario Dominguez-Petit Fran Saborido-Rey |
author_facet |
Raquel Ruiz-Díaz Rosario Dominguez-Petit Fran Saborido-Rey |
author_sort |
Raquel Ruiz-Díaz |
title |
Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance |
title_short |
Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance |
title_full |
Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance |
title_fullStr |
Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance |
title_full_unstemmed |
Atlantic Cod Growth History in Flemish Cap Between 1981 and 2016: The Impact of Fishing and Climate on Growth Performance |
title_sort |
atlantic cod growth history in flemish cap between 1981 and 2016: the impact of fishing and climate on growth performance |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.876488 https://doaj.org/article/f138b7bf1e24422783e98ae91cf25339 |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Frontiers in Marine Science, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2022.876488/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.876488 https://doaj.org/article/f138b7bf1e24422783e98ae91cf25339 |
op_doi |
https://doi.org/10.3389/fmars.2022.876488 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1766358086942982144 |