Causes of trends in abundance of mesopredators in the Kattegat Sea

It has come to attention that there is a mesopredator release effect present in the Kattegat Sea (northern Europe, between Sweden and Denmark). The areas in focus here are Ringhals, a nuclear power plant zone, and Vendelsöarna, a undisturbed reference area. Mesopredator abundances like the Carcinus...

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Autor principal: Rudnicki, Karla
Formato: H2
Lenguaje:Inglés
Publicado: SLU/Dept. Of Aquatic Resources 2018
Materias:
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author Rudnicki, Karla
author_browse Rudnicki, Karla
author_facet Rudnicki, Karla
author_sort Rudnicki, Karla
collection Epsilon Archive for Student Projects
description It has come to attention that there is a mesopredator release effect present in the Kattegat Sea (northern Europe, between Sweden and Denmark). The areas in focus here are Ringhals, a nuclear power plant zone, and Vendelsöarna, a undisturbed reference area. Mesopredator abundances like the Carcinus maenas (European Shore Crab) have increased over the years; while there have been a noticeable decreased population of Gadus morhua (Atlantic Cod) and a sea temperature increase since the 1970s. The aim of this research in the Kattegat Sea is to analyze the potential causes for increasing abundance of mesopredators that could cause cascading effects and alter the ecosystem itself. Since 1976, data has been collected in the Kattegat Sea region where uni- and multivariate analysis, which can examine the idea that there is a correlation between diminished population of the Gadus morhua, (Atlantic Cod) and temperature rise with mesopredator increasing distributions. Results suggest abundances of mesopredatory fish and crab were highest in areas where there were favourable habitat attributes, eg., in terms of increased temperature. Significant results stating the relationship between increased mesopredator’s abundance and Atlantic Cod deceased abundance. Smaller population of the piscivore Atlantic Cod advocates a cascading process. Adjacent areas like the Baltic Sea, have and are also experiencing these effects and results can pose particular challenges for the ecosystem.
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spelling RepoSLU140252020-05-20T10:53:28Z Causes of trends in abundance of mesopredators in the Kattegat Sea Orsaker till trender i förekomst av mesopredatorer i Kattegatt Rudnicki, Karla shore crab atlantic cod mesopredator Vendelsöarna temperature Ringhals nuclear power plant It has come to attention that there is a mesopredator release effect present in the Kattegat Sea (northern Europe, between Sweden and Denmark). The areas in focus here are Ringhals, a nuclear power plant zone, and Vendelsöarna, a undisturbed reference area. Mesopredator abundances like the Carcinus maenas (European Shore Crab) have increased over the years; while there have been a noticeable decreased population of Gadus morhua (Atlantic Cod) and a sea temperature increase since the 1970s. The aim of this research in the Kattegat Sea is to analyze the potential causes for increasing abundance of mesopredators that could cause cascading effects and alter the ecosystem itself. Since 1976, data has been collected in the Kattegat Sea region where uni- and multivariate analysis, which can examine the idea that there is a correlation between diminished population of the Gadus morhua, (Atlantic Cod) and temperature rise with mesopredator increasing distributions. Results suggest abundances of mesopredatory fish and crab were highest in areas where there were favourable habitat attributes, eg., in terms of increased temperature. Significant results stating the relationship between increased mesopredator’s abundance and Atlantic Cod deceased abundance. Smaller population of the piscivore Atlantic Cod advocates a cascading process. Adjacent areas like the Baltic Sea, have and are also experiencing these effects and results can pose particular challenges for the ecosystem. SLU/Dept. Of Aquatic Resources 2018 H2 eng https://stud.epsilon.slu.se/14025/
spellingShingle shore crab
atlantic cod
mesopredator
Vendelsöarna
temperature
Ringhals
nuclear power plant
Rudnicki, Karla
Causes of trends in abundance of mesopredators in the Kattegat Sea
title Causes of trends in abundance of mesopredators in the Kattegat Sea
title_full Causes of trends in abundance of mesopredators in the Kattegat Sea
title_fullStr Causes of trends in abundance of mesopredators in the Kattegat Sea
title_full_unstemmed Causes of trends in abundance of mesopredators in the Kattegat Sea
title_short Causes of trends in abundance of mesopredators in the Kattegat Sea
title_sort causes of trends in abundance of mesopredators in the kattegat sea
topic shore crab
atlantic cod
mesopredator
Vendelsöarna
temperature
Ringhals
nuclear power plant