Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas)
In a world of increasing globalisation nearly all ecosystems become threatened or are affected by alien species. If a species become invasive this can lead to alterations in the recipient region, but the reasons for the success of an alien species and the causes of its impact remain often unclear. S...
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Language: | English |
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Universität Bremen
2009
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Online Access: | https://media.suub.uni-bremen.de/handle/elib/2664 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000114522 |
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ftsubbremen:oai:media.suub.uni-bremen.de:Publications/elib/2664 2023-05-15T15:57:50+02:00 Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas) Endangering potential of eulittoral Blue mussel beds in the Wadden Sea of Lower Saxony by the bio-invasion of the Pacific oyster (Crassostrea gigas) Schmidt, Andreas Hagen, Wilhelm Dittmann, Sabine 2009-04-16 application/pdf https://media.suub.uni-bremen.de/handle/elib/2664 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000114522 eng eng Universität Bremen FB2 Biologie/Chemie https://media.suub.uni-bremen.de/handle/elib/2664 urn:nbn:de:gbv:46-diss000114522 info:eu-repo/semantics/openAccess bio-invasion non-indigenous species alien species population growth mortality larvae dispersal bivalves Pacific oyster Crassostrea gigas Blue mussel Mytilus edulis competition North Sea Wadden Sea plankton larvae identification whole-larvae in situ hybridisation oligonucleotide probes species identification molecular ecology ribosomal RNA 570 570 Life sciences biology ddc:570 Dissertation doctoralThesis 2009 ftsubbremen 2022-11-09T07:09:51Z In a world of increasing globalisation nearly all ecosystems become threatened or are affected by alien species. If a species become invasive this can lead to alterations in the recipient region, but the reasons for the success of an alien species and the causes of its impact remain often unclear. Since the late 1990's, the Pacific oyster has spread into the East Frisian Wadden Sea (Germany). This invasion provided the opportunity to study the population dynamic, the pattern of spread and the influence of the oyster on the ecosystem during the initial bio-invasion process. The oyster population increased significantly during the study. During the beginning invasion the distribution of oysters developed patchy, which might be due to larval dispersal and/or supply. To investigate this, a molecular method was developed to identify oyster larvae in plankton samples. The spread of the oyster on Blue mussel beds may lead to competition between both species. But, the oysters had no negative effect or outcompete the mussel. However, an influence in the Wadden Sea is to be expected, which is indicated by high biomass production and the habitat structure provided by the oyster. Doctoral or Postdoctoral Thesis Crassostrea gigas Pacific oyster Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) Auster ENVELOPE(-59.467,-59.467,-63.817,-63.817) Pacific |
institution |
Open Polar |
collection |
Media SuUB Bremen (Staats- und Universitätsbibliothek Bremen) |
op_collection_id |
ftsubbremen |
language |
English |
topic |
bio-invasion non-indigenous species alien species population growth mortality larvae dispersal bivalves Pacific oyster Crassostrea gigas Blue mussel Mytilus edulis competition North Sea Wadden Sea plankton larvae identification whole-larvae in situ hybridisation oligonucleotide probes species identification molecular ecology ribosomal RNA 570 570 Life sciences biology ddc:570 |
spellingShingle |
bio-invasion non-indigenous species alien species population growth mortality larvae dispersal bivalves Pacific oyster Crassostrea gigas Blue mussel Mytilus edulis competition North Sea Wadden Sea plankton larvae identification whole-larvae in situ hybridisation oligonucleotide probes species identification molecular ecology ribosomal RNA 570 570 Life sciences biology ddc:570 Schmidt, Andreas Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas) |
topic_facet |
bio-invasion non-indigenous species alien species population growth mortality larvae dispersal bivalves Pacific oyster Crassostrea gigas Blue mussel Mytilus edulis competition North Sea Wadden Sea plankton larvae identification whole-larvae in situ hybridisation oligonucleotide probes species identification molecular ecology ribosomal RNA 570 570 Life sciences biology ddc:570 |
description |
In a world of increasing globalisation nearly all ecosystems become threatened or are affected by alien species. If a species become invasive this can lead to alterations in the recipient region, but the reasons for the success of an alien species and the causes of its impact remain often unclear. Since the late 1990's, the Pacific oyster has spread into the East Frisian Wadden Sea (Germany). This invasion provided the opportunity to study the population dynamic, the pattern of spread and the influence of the oyster on the ecosystem during the initial bio-invasion process. The oyster population increased significantly during the study. During the beginning invasion the distribution of oysters developed patchy, which might be due to larval dispersal and/or supply. To investigate this, a molecular method was developed to identify oyster larvae in plankton samples. The spread of the oyster on Blue mussel beds may lead to competition between both species. But, the oysters had no negative effect or outcompete the mussel. However, an influence in the Wadden Sea is to be expected, which is indicated by high biomass production and the habitat structure provided by the oyster. |
author2 |
Hagen, Wilhelm Dittmann, Sabine |
format |
Doctoral or Postdoctoral Thesis |
author |
Schmidt, Andreas |
author_facet |
Schmidt, Andreas |
author_sort |
Schmidt, Andreas |
title |
Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas) |
title_short |
Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas) |
title_full |
Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas) |
title_fullStr |
Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas) |
title_full_unstemmed |
Gefährdungspotential der eulitoralen Miesmuschelbänke im Niedersächsischen Wattenmeer durch die Bioinvasion der Pazifischen Auster (Crassostrea gigas) |
title_sort |
gefährdungspotential der eulitoralen miesmuschelbänke im niedersächsischen wattenmeer durch die bioinvasion der pazifischen auster (crassostrea gigas) |
publisher |
Universität Bremen |
publishDate |
2009 |
url |
https://media.suub.uni-bremen.de/handle/elib/2664 https://nbn-resolving.org/urn:nbn:de:gbv:46-diss000114522 |
long_lat |
ENVELOPE(-59.467,-59.467,-63.817,-63.817) |
geographic |
Auster Pacific |
geographic_facet |
Auster Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_relation |
https://media.suub.uni-bremen.de/handle/elib/2664 urn:nbn:de:gbv:46-diss000114522 |
op_rights |
info:eu-repo/semantics/openAccess |
_version_ |
1766393529704120320 |