Show simple item record

dc.contributor.authorRomagnoni, Giovanni  Concept link
dc.contributor.authorKvile, Kristina Øie  Concept link
dc.contributor.authorDagestad, Knut‐Frode  Concept link
dc.contributor.authorEikeset, Anne Maria  Concept link
dc.contributor.authorKristiansen, Trond  Concept link
dc.contributor.authorStenseth, Nils Christian  Concept link
dc.contributor.authorLangangen, Øystein  Concept link
dc.date.accessioned2020-06-12T15:27:13Z
dc.date.available2020-06-12T15:27:13Z
dc.date.issued2020-04-12
dc.identifier.citationRomagnoni, G., Kvile, K. o., Dagestad, K., Eikeset, A. M., Kristiansen, T., Stenseth, N. C., & Langangen, O. (2020). Influence of larval transport and temperature on recruitment dynamics of North Sea cod (Gadus morhua) across spatial scales of observation. Fisheries Oceanography, 1-16.en_US
dc.identifier.urihttps://hdl.handle.net/1912/25850
dc.description© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Romagnoni, G., Kvile, K. o., Dagestad, K., Eikeset, A. M., Kristiansen, T., Stenseth, N. C., & Langangen, O. Influence of larval transport and temperature on recruitment dynamics of North Sea cod (Gadus morhua) across spatial scales of observation. Fisheries Oceanography, (2020): 1-16, doi:10.1111/fog.12474.en_US
dc.description.abstractThe 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.en_US
dc.description.sponsorshipG.R. was supported by the Norden Top‐level Research Initiative sub‐programme “Effect Studies and Adaptation to Climate Change” through the Nordic Centre for Research on Marine Ecosystems and Resources under Climate Change (NorMER). K.Ø.K. was supported by the WHOI John H. Steele Post‐doctoral Scholar award and VISTA – a basic research program in collaboration between The Norwegian Academy of Science and Letters, and Equinor. We thank an anonymous referee for valuable comments that substantially improved the article.en_US
dc.publisherWileyen_US
dc.relation.urihttps://doi.org/10.1111/fog.12474
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectAtlantic coden_US
dc.subjectbiophysical modelen_US
dc.subjectlarval transporten_US
dc.subjectNorth Seaen_US
dc.subjectpopulationsen_US
dc.subjectstock–recruitmenten_US
dc.subjecttemperatureen_US
dc.titleInfluence of larval transport and temperature on recruitment dynamics of North Sea cod (Gadus morhua) across spatial scales of observationen_US
dc.typeArticleen_US
dc.identifier.doi10.1111/fog.12474


Files in this item

Thumbnail
Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International