The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae
AbstractUnderstanding how the density and spatial arrangement of invaders is critical to developing management strategies of pest species. The Pacific oyster, Crassostrea gigas, has been translocated around the world for aquaculture and in many instances has established wild populations. Relative to...
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ftenkore:wikidata-Q37480999 2024-01-07T09:42:45+01:00 The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae Wilkie, Emma M Bishop, Melanie J. O'Connor, Wayne A 2013-12-10 https://scholia.toolforge.org/work/Q37480999 http://www.wikidata.org/entity/Q37480999 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892352 https://doi.org/10.1002/ECE3.872 en eng Wiley https://scholia.toolforge.org/work/Q37480999 http://www.wikidata.org/entity/Q37480999 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892352 doi:10.1002/ECE3.872 http://creativecommons.org/licenses/by/3.0/ theme:invasion impact theme:wikidata.org/entity/Q112148709 Crassostrea gigas invasive species invasion impact journal article 2013 ftenkore https://doi.org/10.1002/ECE3.872 2023-12-11T19:24:51Z AbstractUnderstanding how the density and spatial arrangement of invaders is critical to developing management strategies of pest species. The Pacific oyster, Crassostrea gigas, has been translocated around the world for aquaculture and in many instances has established wild populations. Relative to other species of bivalve, it displays rapid suspension feeding, which may cause mortality of pelagic invertebrate larvae. We compared the effect on settlement of Sydney rock oyster, Saccostrea glomerata, larvae of manipulating the spatial arrangement and density of native S._glomerata, and non‐native C._gigas. We hypothesized that while manipulations of dead oysters would reveal the same positive relationship between attachment surface area and S._glomerata settlement between the two species, manipulations of live oysters would reveal differing density‐dependent effects between the native and non‐native oyster. In the field, whether oysters were live or dead, more larvae settled on C._gigas than S._glomerata when substrate was arranged in monospecific clumps. When, however, the two species were interspersed, there were no differences in larval settlement between them. By contrast, in aquaria simulating a higher effective oyster density, more larvae settled on live S._glomerata than C._gigas. When C._gigas was prevented from suspension feeding, settlement of larvae on C._gigas was enhanced. By contrast, settlement was similar between the two species when dead. While the presently low densities of the invasive oyster C._gigas may enhance S._glomerata larval settlement in east Australian estuaries, future increases in densities could produce negative impacts on native oyster settlement. Synthesis and applications: Our study has shown that both the spatial arrangement and density of invaders can influence their impact. Hence, management strategies aimed at preventing invasive populations reaching damaging sizes should not only consider the threshold density at which impacts exceed some acceptable limit, but also how ... Article in Journal/Newspaper Crassostrea gigas Pacific oyster enKORE project Pacific Ecology and Evolution 3 15 4851 4860 |
institution |
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collection |
enKORE project |
op_collection_id |
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language |
English |
topic |
theme:invasion impact theme:wikidata.org/entity/Q112148709 Crassostrea gigas invasive species invasion impact |
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theme:invasion impact theme:wikidata.org/entity/Q112148709 Crassostrea gigas invasive species invasion impact Wilkie, Emma M Bishop, Melanie J. O'Connor, Wayne A The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae |
topic_facet |
theme:invasion impact theme:wikidata.org/entity/Q112148709 Crassostrea gigas invasive species invasion impact |
description |
AbstractUnderstanding how the density and spatial arrangement of invaders is critical to developing management strategies of pest species. The Pacific oyster, Crassostrea gigas, has been translocated around the world for aquaculture and in many instances has established wild populations. Relative to other species of bivalve, it displays rapid suspension feeding, which may cause mortality of pelagic invertebrate larvae. We compared the effect on settlement of Sydney rock oyster, Saccostrea glomerata, larvae of manipulating the spatial arrangement and density of native S._glomerata, and non‐native C._gigas. We hypothesized that while manipulations of dead oysters would reveal the same positive relationship between attachment surface area and S._glomerata settlement between the two species, manipulations of live oysters would reveal differing density‐dependent effects between the native and non‐native oyster. In the field, whether oysters were live or dead, more larvae settled on C._gigas than S._glomerata when substrate was arranged in monospecific clumps. When, however, the two species were interspersed, there were no differences in larval settlement between them. By contrast, in aquaria simulating a higher effective oyster density, more larvae settled on live S._glomerata than C._gigas. When C._gigas was prevented from suspension feeding, settlement of larvae on C._gigas was enhanced. By contrast, settlement was similar between the two species when dead. While the presently low densities of the invasive oyster C._gigas may enhance S._glomerata larval settlement in east Australian estuaries, future increases in densities could produce negative impacts on native oyster settlement. Synthesis and applications: Our study has shown that both the spatial arrangement and density of invaders can influence their impact. Hence, management strategies aimed at preventing invasive populations reaching damaging sizes should not only consider the threshold density at which impacts exceed some acceptable limit, but also how ... |
format |
Article in Journal/Newspaper |
author |
Wilkie, Emma M Bishop, Melanie J. O'Connor, Wayne A |
author_facet |
Wilkie, Emma M Bishop, Melanie J. O'Connor, Wayne A |
author_sort |
Wilkie, Emma M |
title |
The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae |
title_short |
The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae |
title_full |
The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae |
title_fullStr |
The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae |
title_full_unstemmed |
The density and spatial arrangement of the invasive oyster Crassostrea gigas determines its impact on settlement of native oyster larvae |
title_sort |
density and spatial arrangement of the invasive oyster crassostrea gigas determines its impact on settlement of native oyster larvae |
publisher |
Wiley |
publishDate |
2013 |
url |
https://scholia.toolforge.org/work/Q37480999 http://www.wikidata.org/entity/Q37480999 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892352 https://doi.org/10.1002/ECE3.872 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_relation |
https://scholia.toolforge.org/work/Q37480999 http://www.wikidata.org/entity/Q37480999 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3892352 doi:10.1002/ECE3.872 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1002/ECE3.872 |
container_title |
Ecology and Evolution |
container_volume |
3 |
container_issue |
15 |
container_start_page |
4851 |
op_container_end_page |
4860 |
_version_ |
1787423808455442432 |