Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea
The North Sea cod stock is close to the southern limit of the species’ range. Therefore, it might be vulnerable to future climate change. Direct as well as indirect effects of climate forcing may have the greatest effects on early life stages. Here we present a study on the distribution of cod (Gadu...
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ftdtupubl:oai:pure.atira.dk:publications/4482b9c4-5987-4e30-97b3-7f6f5f202653 2023-05-15T16:19:16+02:00 Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea Höffle, Hannes Munk, Peter 2012 application/pdf https://orbit.dtu.dk/en/publications/4482b9c4-5987-4e30-97b3-7f6f5f202653 https://backend.orbit.dtu.dk/ws/files/123045938/R1412.pdf http://ices.dk/products/CMdocs/CM-2012/R/R1412.pdf eng eng info:eu-repo/semantics/openAccess Höffle , H & Munk , P 2012 , ' Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea ' . < http://ices.dk/products/CMdocs/CM-2012/R/R1412.pdf > /dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action conferenceObject 2012 ftdtupubl 2022-08-14T08:24:34Z The North Sea cod stock is close to the southern limit of the species’ range. Therefore, it might be vulnerable to future climate change. Direct as well as indirect effects of climate forcing may have the greatest effects on early life stages. Here we present a study on the distribution of cod (Gadus morhua) at the beginning and at the end of the planktonic life stage. The distribution of cod eggs was modelled with generalized additive models (GAMs) for the resence/absence and for the nonzero abundance, using environmental as well as spatial covariates. For comparison, we also examined the egg distribution of haddock (Melanogrammus aeglefinus), whiting (Merlangius merlangus), and plaice (Pleuronectes platessa). Findings indicated that in the egg stage, the environment is more important for the probability of occurrence, while abundance is more under the control of spatial dependency. Modelling the potential habitat of newly settled 0‐group cod based on presence/absence alone, identified temperature, salinity, bottom depth, and geographic position as the core descriptors of settlement distribution. The habitat models had good predictive power on the subdecadal scale, but were found lacking on a longer time‐scale. The results showed that the effects of the predicted climate change may be complex and may, even within the same species, be beneficial for one life stage and detrimental for another Conference Object Gadus morhua Technical University of Denmark: DTU Orbit |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
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ftdtupubl |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action Höffle, Hannes Munk, Peter Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/climate_action SDG 13 - Climate Action |
description |
The North Sea cod stock is close to the southern limit of the species’ range. Therefore, it might be vulnerable to future climate change. Direct as well as indirect effects of climate forcing may have the greatest effects on early life stages. Here we present a study on the distribution of cod (Gadus morhua) at the beginning and at the end of the planktonic life stage. The distribution of cod eggs was modelled with generalized additive models (GAMs) for the resence/absence and for the nonzero abundance, using environmental as well as spatial covariates. For comparison, we also examined the egg distribution of haddock (Melanogrammus aeglefinus), whiting (Merlangius merlangus), and plaice (Pleuronectes platessa). Findings indicated that in the egg stage, the environment is more important for the probability of occurrence, while abundance is more under the control of spatial dependency. Modelling the potential habitat of newly settled 0‐group cod based on presence/absence alone, identified temperature, salinity, bottom depth, and geographic position as the core descriptors of settlement distribution. The habitat models had good predictive power on the subdecadal scale, but were found lacking on a longer time‐scale. The results showed that the effects of the predicted climate change may be complex and may, even within the same species, be beneficial for one life stage and detrimental for another |
format |
Conference Object |
author |
Höffle, Hannes Munk, Peter |
author_facet |
Höffle, Hannes Munk, Peter |
author_sort |
Höffle, Hannes |
title |
Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea |
title_short |
Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea |
title_full |
Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea |
title_fullStr |
Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea |
title_full_unstemmed |
Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea |
title_sort |
modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the north sea |
publishDate |
2012 |
url |
https://orbit.dtu.dk/en/publications/4482b9c4-5987-4e30-97b3-7f6f5f202653 https://backend.orbit.dtu.dk/ws/files/123045938/R1412.pdf http://ices.dk/products/CMdocs/CM-2012/R/R1412.pdf |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Höffle , H & Munk , P 2012 , ' Modelling the beginning and end of a planktonic life stage — the distribution of cod eggs and settled juveniles in the North Sea ' . < http://ices.dk/products/CMdocs/CM-2012/R/R1412.pdf > |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766005626949861376 |