Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization
Abstract Having valid information about the location and dynamics of biological processes is important for coastal management. In this context modelling, the pelagic drift of early life stages has been shown to be an important tool for understanding the spatial scale of population dynamics in marine...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsv134 http://academic.oup.com/icesjms/article-pdf/72/9/2578/31226020/fsv134.pdf |
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croxfordunivpr:10.1093/icesjms/fsv134 2023-10-29T02:36:25+01:00 Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization Espeland, Sigurd Heiberg Albretsen, Jon Olsen, Esben Moland Bodvin, Torjan 2015 http://dx.doi.org/10.1093/icesjms/fsv134 http://academic.oup.com/icesjms/article-pdf/72/9/2578/31226020/fsv134.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science volume 72, issue 9, page 2578-2589 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2015 croxfordunivpr https://doi.org/10.1093/icesjms/fsv134 2023-09-29T10:48:43Z Abstract Having valid information about the location and dynamics of biological processes is important for coastal management. In this context modelling, the pelagic drift of early life stages has been shown to be an important tool for understanding the spatial scale of population dynamics in marine systems. Often simulated particles are released in hypothetical quantities at assumed spawning grounds with no or few field data to guide the model parametrization. In this study, we combine high-resolution field data and state-of-the-art oceanographic modelling and use a probabilistic approach to construct kernel density distributions of the dispersal of pelagic fish eggs. Specifically, the potential drift of pelagic offspring of cod (Gadus morhua) was investigated in a large, open fjord system in northern Norway by combining field observations of newly spawned cod eggs with simulations of particle movement using a semi-Lagrangian trajectory model with inputs from high-resolution hydrodynamic simulations. The larger part of the distribution of eggs after drift was located in the fjord, suggesting fjord scale recruitment dynamics. Finally, we also examined the drift of eggs released in a uniform distribution and found that lack of egg survey data gave an unrealistically large spread of egg particles within this fjord system. Article in Journal/Newspaper Gadus morhua Northern Norway Oxford University Press (via Crossref) ICES Journal of Marine Science 72 9 2578 2589 |
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Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Espeland, Sigurd Heiberg Albretsen, Jon Olsen, Esben Moland Bodvin, Torjan Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Having valid information about the location and dynamics of biological processes is important for coastal management. In this context modelling, the pelagic drift of early life stages has been shown to be an important tool for understanding the spatial scale of population dynamics in marine systems. Often simulated particles are released in hypothetical quantities at assumed spawning grounds with no or few field data to guide the model parametrization. In this study, we combine high-resolution field data and state-of-the-art oceanographic modelling and use a probabilistic approach to construct kernel density distributions of the dispersal of pelagic fish eggs. Specifically, the potential drift of pelagic offspring of cod (Gadus morhua) was investigated in a large, open fjord system in northern Norway by combining field observations of newly spawned cod eggs with simulations of particle movement using a semi-Lagrangian trajectory model with inputs from high-resolution hydrodynamic simulations. The larger part of the distribution of eggs after drift was located in the fjord, suggesting fjord scale recruitment dynamics. Finally, we also examined the drift of eggs released in a uniform distribution and found that lack of egg survey data gave an unrealistically large spread of egg particles within this fjord system. |
format |
Article in Journal/Newspaper |
author |
Espeland, Sigurd Heiberg Albretsen, Jon Olsen, Esben Moland Bodvin, Torjan |
author_facet |
Espeland, Sigurd Heiberg Albretsen, Jon Olsen, Esben Moland Bodvin, Torjan |
author_sort |
Espeland, Sigurd Heiberg |
title |
Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization |
title_short |
Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization |
title_full |
Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization |
title_fullStr |
Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization |
title_full_unstemmed |
Modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization |
title_sort |
modelling drift of pelagic offspring: the importance of egg surveys in providing a realistic model initialization |
publisher |
Oxford University Press (OUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1093/icesjms/fsv134 http://academic.oup.com/icesjms/article-pdf/72/9/2578/31226020/fsv134.pdf |
genre |
Gadus morhua Northern Norway |
genre_facet |
Gadus morhua Northern Norway |
op_source |
ICES Journal of Marine Science volume 72, issue 9, page 2578-2589 ISSN 1095-9289 1054-3139 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsv134 |
container_title |
ICES Journal of Marine Science |
container_volume |
72 |
container_issue |
9 |
container_start_page |
2578 |
op_container_end_page |
2589 |
_version_ |
1781060365319143424 |