Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)

Both seagrasses and bivalve shellfish provide valuable ecosystem services in estuaries worldwide. Seagrasses are protected by no-net-loss provisions in US federal and state regulations, resulting in precautionary management that avoids any direct impacts from development activity, including shellfis...

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Autores principales:	BR Dumbauld, LM McCoy
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2015
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/5283367f4fad4aa396ba40b941b6097d
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spelling	oai:doaj.org-article:5283367f4fad4aa396ba40b941b6097d2021-11-16T09:40:49ZEffect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)1869-215X1869-753410.3354/aei00131https://doaj.org/article/5283367f4fad4aa396ba40b941b6097d2015-06-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v7/n1/p29-47/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Both seagrasses and bivalve shellfish provide valuable ecosystem services in estuaries worldwide. Seagrasses are protected by no-net-loss provisions in US federal and state regulations, resulting in precautionary management that avoids any direct impacts from development activity, including shellfish aquaculture. Recent research suggests that oyster aquaculture has direct impacts on native seagrass (eelgrass Zostera marina) at small spatial and short temporal scales in US west coast estuaries. We quantified impacts of oyster aquaculture on Z. marina at the estuarine landscape scale in Willapa Bay, Washington. A model of Z. marina cover outside of aquaculture was created using distance to estuary mouth, distance to nearest channel, salinity, elevation, and cumulative wave stress as factors, and was then used to predict Z. marina distribution within oyster aquaculture beds and compared to an inverse distance interpolation of points outside of aquaculture. The amount of Z. marina cover observed within oyster aquaculture beds was less than predicted, but represented <1.5% of the total predicted amount of Z. marina cover in Willapa Bay in any year. Type of oyster culture bed did not contribute to observed variation, but mechanically harvested beds had significantly less Z. marina cover than beds harvested by other methods. The majority of beds had 65-145% of the model-predicted Z. marina cover and exhibited relatively low variability between years, suggesting that Z. marina as habitat is resilient to oyster aquaculture as a disturbance and does not result in persistent effects at the landscape scale in this estuary.BR DumbauldLM McCoyInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 7, Iss 1, Pp 29-47 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
spellingShingle	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 BR Dumbauld LM McCoy Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)
description	Both seagrasses and bivalve shellfish provide valuable ecosystem services in estuaries worldwide. Seagrasses are protected by no-net-loss provisions in US federal and state regulations, resulting in precautionary management that avoids any direct impacts from development activity, including shellfish aquaculture. Recent research suggests that oyster aquaculture has direct impacts on native seagrass (eelgrass Zostera marina) at small spatial and short temporal scales in US west coast estuaries. We quantified impacts of oyster aquaculture on Z. marina at the estuarine landscape scale in Willapa Bay, Washington. A model of Z. marina cover outside of aquaculture was created using distance to estuary mouth, distance to nearest channel, salinity, elevation, and cumulative wave stress as factors, and was then used to predict Z. marina distribution within oyster aquaculture beds and compared to an inverse distance interpolation of points outside of aquaculture. The amount of Z. marina cover observed within oyster aquaculture beds was less than predicted, but represented <1.5% of the total predicted amount of Z. marina cover in Willapa Bay in any year. Type of oyster culture bed did not contribute to observed variation, but mechanically harvested beds had significantly less Z. marina cover than beds harvested by other methods. The majority of beds had 65-145% of the model-predicted Z. marina cover and exhibited relatively low variability between years, suggesting that Z. marina as habitat is resilient to oyster aquaculture as a disturbance and does not result in persistent effects at the landscape scale in this estuary.
format	article
author	BR Dumbauld LM McCoy
author_facet	BR Dumbauld LM McCoy
author_sort	BR Dumbauld
title	Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)
title_short	Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)
title_full	Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)
title_fullStr	Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)
title_full_unstemmed	Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)
title_sort	effect of oyster aquaculture on seagrass zostera marina at the estuarine landscape scale in willapa bay, washington (usa)
publisher	Inter-Research
publishDate	2015
url	https://doaj.org/article/5283367f4fad4aa396ba40b941b6097d
work_keys_str_mv	AT brdumbauld effectofoysteraquacultureonseagrasszosteramarinaattheestuarinelandscapescaleinwillapabaywashingtonusa AT lmmccoy effectofoysteraquacultureonseagrasszosteramarinaattheestuarinelandscapescaleinwillapabaywashingtonusa
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Effect of oyster aquaculture on seagrass Zostera marina at the estuarine landscape scale in Willapa Bay, Washington (USA)

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