Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation
Abstract The survival of fish eggs and larvae, and therefore recruitment success, can be critically affected by transport in ocean currents. Combining a model of early‐life stage dispersal with statistical stock–recruitment models, we investigated the role of larval transport for recruitment variabi...
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crwiley:10.1111/fog.12474 2024-09-15T18:07:17+00:00 Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation Romagnoni, Giovanni Kvile, Kristina Øie Dagestad, Knut‐Frode Eikeset, Anne Maria Kristiansen, Trond Stenseth, Nils Chr. Langangen, Øystein Norden Top-Level Research Initiative sub-program Effect Studies and Adaptation to Climate Change” through the Nordic Centre for Research on Marine Ecosystems and Resources under Climate Change WHOI John H. Steele Postdoctoral Scholar award VISTA - a basic research program in collaboration between The Norwegian Academy of Science and Letters, and Equinor 2020 http://dx.doi.org/10.1111/fog.12474 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffog.12474 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fog.12474 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fog.12474 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Fisheries Oceanography volume 29, issue 4, page 324-339 ISSN 1054-6006 1365-2419 journal-article 2020 crwiley https://doi.org/10.1111/fog.12474 2024-07-25T04:20:42Z Abstract The survival of fish eggs and larvae, and therefore recruitment success, can be critically affected by transport in ocean currents. Combining a model of early‐life stage dispersal with statistical stock–recruitment models, we investigated the role of larval transport for recruitment variability across spatial scales for the population complex of North Sea cod ( Gadus morhua ). By using a coupled physical–biological model, we estimated the egg and larval transport over a 44‐year period. The oceanographic component of the model, capable of capturing the interannual variability of temperature and ocean current patterns, was coupled to the biological component, an individual‐based model (IBM) that simulated the cod eggs and larvae development and mortality. This study proposes a novel method to account for larval transport and success in stock–recruitment models: weighting the spawning stock biomass by retention rate and, in the case of multiple populations, their connectivity. Our method provides an estimate of the stock biomass contributing to recruitment and the effect of larval transport on recruitment variability. Our results indicate an effect, albeit small, in some populations at the local level. Including transport anomaly as an environmental covariate in traditional stock–recruitment models in turn captures recruitment variability at larger scales. Our study aims to quantify the role of larval transport for recruitment across spatial scales, and disentangle the roles of temperature and larval transport on effective connectivity between populations, thus informing about the potential impacts of climate change on the cod population structure in the North Sea. Article in Journal/Newspaper Gadus morhua Wiley Online Library Fisheries Oceanography 29 4 324 339 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The survival of fish eggs and larvae, and therefore recruitment success, can be critically affected by transport in ocean currents. Combining a model of early‐life stage dispersal with statistical stock–recruitment models, we investigated the role of larval transport for recruitment variability across spatial scales for the population complex of North Sea cod ( Gadus morhua ). By using a coupled physical–biological model, we estimated the egg and larval transport over a 44‐year period. The oceanographic component of the model, capable of capturing the interannual variability of temperature and ocean current patterns, was coupled to the biological component, an individual‐based model (IBM) that simulated the cod eggs and larvae development and mortality. This study proposes a novel method to account for larval transport and success in stock–recruitment models: weighting the spawning stock biomass by retention rate and, in the case of multiple populations, their connectivity. Our method provides an estimate of the stock biomass contributing to recruitment and the effect of larval transport on recruitment variability. Our results indicate an effect, albeit small, in some populations at the local level. Including transport anomaly as an environmental covariate in traditional stock–recruitment models in turn captures recruitment variability at larger scales. Our study aims to quantify the role of larval transport for recruitment across spatial scales, and disentangle the roles of temperature and larval transport on effective connectivity between populations, thus informing about the potential impacts of climate change on the cod population structure in the North Sea. |
author2 |
Norden Top-Level Research Initiative sub-program Effect Studies and Adaptation to Climate Change” through the Nordic Centre for Research on Marine Ecosystems and Resources under Climate Change WHOI John H. Steele Postdoctoral Scholar award VISTA - a basic research program in collaboration between The Norwegian Academy of Science and Letters, and Equinor |
format |
Article in Journal/Newspaper |
author |
Romagnoni, Giovanni Kvile, Kristina Øie Dagestad, Knut‐Frode Eikeset, Anne Maria Kristiansen, Trond Stenseth, Nils Chr. Langangen, Øystein |
spellingShingle |
Romagnoni, Giovanni Kvile, Kristina Øie Dagestad, Knut‐Frode Eikeset, Anne Maria Kristiansen, Trond Stenseth, Nils Chr. Langangen, Øystein Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation |
author_facet |
Romagnoni, Giovanni Kvile, Kristina Øie Dagestad, Knut‐Frode Eikeset, Anne Maria Kristiansen, Trond Stenseth, Nils Chr. Langangen, Øystein |
author_sort |
Romagnoni, Giovanni |
title |
Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation |
title_short |
Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation |
title_full |
Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation |
title_fullStr |
Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation |
title_full_unstemmed |
Influence of larval transport and temperature on recruitment dynamics of North Sea cod ( Gadus morhua) across spatial scales of observation |
title_sort |
influence of larval transport and temperature on recruitment dynamics of north sea cod ( gadus morhua) across spatial scales of observation |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/fog.12474 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffog.12474 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fog.12474 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fog.12474 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Fisheries Oceanography volume 29, issue 4, page 324-339 ISSN 1054-6006 1365-2419 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/fog.12474 |
container_title |
Fisheries Oceanography |
container_volume |
29 |
container_issue |
4 |
container_start_page |
324 |
op_container_end_page |
339 |
_version_ |
1810444656683515904 |