Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes
Shell-boring polychaetes burrow into the shells of cultivated and wild molluscs, leading to the formation of unsightly blisters that fill with mud, detritus, and fecal material. Infestation of cultivated oysters poses economic risks for the Pacific Northwest’s shellfish mariculture industry because...
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ftdoajarticles:oai:doaj.org/article:a9f1bb2e4307470fb724ec83442bf8b4 2024-09-15T18:03:17+00:00 Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes Megan E. Considine Julieta C. Martinelli Teri L. King Steven S. Rumrill Chelsea L. Wood 2024-04-01T00:00:00Z https://doi.org/10.1016/j.aqrep.2024.101929 https://doaj.org/article/a9f1bb2e4307470fb724ec83442bf8b4 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S2352513424000176 https://doaj.org/toc/2352-5134 2352-5134 doi:10.1016/j.aqrep.2024.101929 https://doaj.org/article/a9f1bb2e4307470fb724ec83442bf8b4 Aquaculture Reports, Vol 35, Iss , Pp 101929- (2024) Crassostrea gigas1 Mud blister worm2 Oyster parasite3 Oyster aquaculture4 Pest5 Aquaculture. Fisheries. Angling SH1-691 article 2024 ftdoajarticles https://doi.org/10.1016/j.aqrep.2024.101929 2024-08-26T15:21:18Z Shell-boring polychaetes burrow into the shells of cultivated and wild molluscs, leading to the formation of unsightly blisters that fill with mud, detritus, and fecal material. Infestation of cultivated oysters poses economic risks for the Pacific Northwest’s shellfish mariculture industry because the blisters reduce the aesthetic quality and market appeal of oysters sold on the half-shell market. To help Oregon’s multimillion-dollar mariculture industry develop resilience against this emerging biosecurity threat, we quantified seasonal variability and spatial differences in the infestation of Pacific oysters (Crassostrea gigas) by shell-boring polychaetes, and assessed whether prevalence varied among grow-out methods, seasons, and host traits (shell height and tissue mass). In 2019–2021, we obtained 829 Pacific oysters from seven commercial shellfish farms spanning the Oregon coast (Tillamook Bay, Netarts Bay, Yaquina Bay, and Coos Bay), and observed a mean statewide infestation rate of 11–31% over four sampling seasons. We observed the highest prevalence of infestation by shell-boring polychaetes (72%) in Netarts Bay. Oysters cultivated off-bottom exhibited lower prevalence of infestation than oysters grown on-bottom. Our study also revealed a significant effect of seasonality, with higher rates of infestation during winter. Oyster shell height and tissue mass were not significantly associated with the prevalence of infestation. Our observations identify an infestation hotspot in Netarts Bay, and suggest that off-bottom culture may help reduce infestation rates, mitigating damage caused by shell-boring polychaetes in Oregon bays and estuaries. Article in Journal/Newspaper Crassostrea gigas Directory of Open Access Journals: DOAJ Articles Aquaculture Reports 35 101929 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Crassostrea gigas1 Mud blister worm2 Oyster parasite3 Oyster aquaculture4 Pest5 Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
Crassostrea gigas1 Mud blister worm2 Oyster parasite3 Oyster aquaculture4 Pest5 Aquaculture. Fisheries. Angling SH1-691 Megan E. Considine Julieta C. Martinelli Teri L. King Steven S. Rumrill Chelsea L. Wood Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes |
topic_facet |
Crassostrea gigas1 Mud blister worm2 Oyster parasite3 Oyster aquaculture4 Pest5 Aquaculture. Fisheries. Angling SH1-691 |
description |
Shell-boring polychaetes burrow into the shells of cultivated and wild molluscs, leading to the formation of unsightly blisters that fill with mud, detritus, and fecal material. Infestation of cultivated oysters poses economic risks for the Pacific Northwest’s shellfish mariculture industry because the blisters reduce the aesthetic quality and market appeal of oysters sold on the half-shell market. To help Oregon’s multimillion-dollar mariculture industry develop resilience against this emerging biosecurity threat, we quantified seasonal variability and spatial differences in the infestation of Pacific oysters (Crassostrea gigas) by shell-boring polychaetes, and assessed whether prevalence varied among grow-out methods, seasons, and host traits (shell height and tissue mass). In 2019–2021, we obtained 829 Pacific oysters from seven commercial shellfish farms spanning the Oregon coast (Tillamook Bay, Netarts Bay, Yaquina Bay, and Coos Bay), and observed a mean statewide infestation rate of 11–31% over four sampling seasons. We observed the highest prevalence of infestation by shell-boring polychaetes (72%) in Netarts Bay. Oysters cultivated off-bottom exhibited lower prevalence of infestation than oysters grown on-bottom. Our study also revealed a significant effect of seasonality, with higher rates of infestation during winter. Oyster shell height and tissue mass were not significantly associated with the prevalence of infestation. Our observations identify an infestation hotspot in Netarts Bay, and suggest that off-bottom culture may help reduce infestation rates, mitigating damage caused by shell-boring polychaetes in Oregon bays and estuaries. |
format |
Article in Journal/Newspaper |
author |
Megan E. Considine Julieta C. Martinelli Teri L. King Steven S. Rumrill Chelsea L. Wood |
author_facet |
Megan E. Considine Julieta C. Martinelli Teri L. King Steven S. Rumrill Chelsea L. Wood |
author_sort |
Megan E. Considine |
title |
Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes |
title_short |
Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes |
title_full |
Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes |
title_fullStr |
Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes |
title_full_unstemmed |
Spatial and temporal variability in infestation of Oregon oyster farms by shell-boring polychaetes |
title_sort |
spatial and temporal variability in infestation of oregon oyster farms by shell-boring polychaetes |
publisher |
Elsevier |
publishDate |
2024 |
url |
https://doi.org/10.1016/j.aqrep.2024.101929 https://doaj.org/article/a9f1bb2e4307470fb724ec83442bf8b4 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Aquaculture Reports, Vol 35, Iss , Pp 101929- (2024) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S2352513424000176 https://doaj.org/toc/2352-5134 2352-5134 doi:10.1016/j.aqrep.2024.101929 https://doaj.org/article/a9f1bb2e4307470fb724ec83442bf8b4 |
op_doi |
https://doi.org/10.1016/j.aqrep.2024.101929 |
container_title |
Aquaculture Reports |
container_volume |
35 |
container_start_page |
101929 |
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1810440790525083648 |