Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland
The amount of operated oil transports continues to increase in the Gulf of Finland and in the case of an accident hazardous amounts of oil may be spilled into the sea. The oil accident may be harmful for the common guillemot and long-tailed duck populations. In this study expert knowledge regarding...
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ftjyvaeskylaenun:oai:jyx.jyu.fi:123456789/37781 2023-05-15T15:11:39+02:00 Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland Venesjärvi, Riikka 2012 82 sivua application/pdf fulltext http://urn.fi/URN:NBN:fi:jyu-201205071615 eng eng oai:jykdok.linneanet.fi:1216128 URN:NBN:fi:jyu-201205071615 http://urn.fi/URN:NBN:fi:jyu-201205071615 This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. openAccess The Gulf of Finland oil spill Uria aalge Clangula hyemalis Bayesian networks öljyonnettomuudet etelänkiisla alli linnut Suomenlahti Text Pro gradu -tutkielma Master’s thesis masterThesis G2 2012 ftjyvaeskylaenun 2023-04-12T23:00:16Z The amount of operated oil transports continues to increase in the Gulf of Finland and in the case of an accident hazardous amounts of oil may be spilled into the sea. The oil accident may be harmful for the common guillemot and long-tailed duck populations. In this study expert knowledge regarding the behaviour and population dynamics of common guillemot and long-tailed duck in the Gulf of Finland was used to build a model to assess the impacts of an oil spill on the mortality and population size of these species. The Bayesian networks were used in the modelling. Based on the results the breeding colony of guillemots in Aspskär may survive in the consequence of recolonization. In conclusion, sufficient cleaning of the breeding site is important. The loss of one year offspring production may not have severe impact on the population size, the survival of adult breeders is more significant. The Baltic Sea population of long-tailed duck suffer from high nesting mortality at the breeding sites in the Northern Arctic Ocean. Thus the population has low offspring production; in the lack of chicks the possible oil spill may be directed only to adult breeders. The loss of experienced breeders during their migration may be harmful for the population. The models of common guillemot and long-tailed duck created and their results may be utilized in later oil impact studies on sensitive species. Master Thesis Arctic Arctic Ocean common guillemot etelänkiisla Uria aalge uria JYX - Jyväskylä University Digital Archive Arctic Arctic Ocean |
institution |
Open Polar |
collection |
JYX - Jyväskylä University Digital Archive |
op_collection_id |
ftjyvaeskylaenun |
language |
English |
topic |
The Gulf of Finland oil spill Uria aalge Clangula hyemalis Bayesian networks öljyonnettomuudet etelänkiisla alli linnut Suomenlahti |
spellingShingle |
The Gulf of Finland oil spill Uria aalge Clangula hyemalis Bayesian networks öljyonnettomuudet etelänkiisla alli linnut Suomenlahti Venesjärvi, Riikka Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland |
topic_facet |
The Gulf of Finland oil spill Uria aalge Clangula hyemalis Bayesian networks öljyonnettomuudet etelänkiisla alli linnut Suomenlahti |
description |
The amount of operated oil transports continues to increase in the Gulf of Finland and in the case of an accident hazardous amounts of oil may be spilled into the sea. The oil accident may be harmful for the common guillemot and long-tailed duck populations. In this study expert knowledge regarding the behaviour and population dynamics of common guillemot and long-tailed duck in the Gulf of Finland was used to build a model to assess the impacts of an oil spill on the mortality and population size of these species. The Bayesian networks were used in the modelling. Based on the results the breeding colony of guillemots in Aspskär may survive in the consequence of recolonization. In conclusion, sufficient cleaning of the breeding site is important. The loss of one year offspring production may not have severe impact on the population size, the survival of adult breeders is more significant. The Baltic Sea population of long-tailed duck suffer from high nesting mortality at the breeding sites in the Northern Arctic Ocean. Thus the population has low offspring production; in the lack of chicks the possible oil spill may be directed only to adult breeders. The loss of experienced breeders during their migration may be harmful for the population. The models of common guillemot and long-tailed duck created and their results may be utilized in later oil impact studies on sensitive species. |
format |
Master Thesis |
author |
Venesjärvi, Riikka |
author_facet |
Venesjärvi, Riikka |
author_sort |
Venesjärvi, Riikka |
title |
Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland |
title_short |
Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland |
title_full |
Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland |
title_fullStr |
Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland |
title_full_unstemmed |
Assessment of the impacts of an oil spill on the populations of common guillemot (Uria aalge) and long-tailed duck (Clangula hyemalis) - an expert knowledge based Bayesian network for the Gulf of Finland |
title_sort |
assessment of the impacts of an oil spill on the populations of common guillemot (uria aalge) and long-tailed duck (clangula hyemalis) - an expert knowledge based bayesian network for the gulf of finland |
publishDate |
2012 |
url |
http://urn.fi/URN:NBN:fi:jyu-201205071615 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean common guillemot etelänkiisla Uria aalge uria |
genre_facet |
Arctic Arctic Ocean common guillemot etelänkiisla Uria aalge uria |
op_relation |
oai:jykdok.linneanet.fi:1216128 URN:NBN:fi:jyu-201205071615 http://urn.fi/URN:NBN:fi:jyu-201205071615 |
op_rights |
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. openAccess |
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