Influence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes

Bivalve aquaculture introduces high densities of farmed organisms to the natural environment with potential consequences on a number of ecosystem processes, including modification of nutrient fluxes (e.g. NH4, NOX, PO4, and Si(OH)4) and benthic respiration, and may impact benthic communities. Infaun...

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Autores principales: MF Lavoie, CW McKindsey, CM Pearce, P Archambault
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Publicado: Inter-Research 2016
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spelling oai:doaj.org-article:b0e53641c1ca4197a435af3789c723082021-11-04T10:29:04ZInfluence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes1869-215X1869-753410.3354/aei00167https://doaj.org/article/b0e53641c1ca4197a435af3789c723082016-02-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v8/p117-130/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Bivalve aquaculture introduces high densities of farmed organisms to the natural environment with potential consequences on a number of ecosystem processes, including modification of nutrient fluxes (e.g. NH4, NOX, PO4, and Si(OH)4) and benthic respiration, and may impact benthic communities. Infaunal clam culture may influence the environment due to the clams themselves [their metabolic processes (e.g. feeding, respiration), production of faeces/pseudofaeces, and/or trapping of organic matter], the farm structures, or the fouling on these structures. This study examined how farmed Manila clams Venerupis philippinarum, the nets placed on beaches to protect them from predators, and the fouling organisms growing on these nets modify nutrient fluxes, benthic respiration, and benthic community structure in coastal British Columbia, Canada. In 2012, a manipulative experiment involving sixty 2.25 m2 plots and 6 treatments was conducted on an intertidal farmed beach to evaluate the effect of clams (presence/absence) and net status (fouled, cleaned, and absent). Percentage organic matter in the first centimetre of sediment was significantly greater with the presence of clams than without. The abundance and taxonomic richness of organisms in sediments were significantly affected by net status. Nutrient fluxes and oxygen consumption increased significantly with the presence of clams, the latter also increasing with the presence of nets and fouling on nets (incubated under dark conditions). These results show that farmed clams and the structures used to culture them influence several environmental parameters, and provide a better understanding of the role of these factors in modulating the benthic environment.MF LavoieCW McKindseyCM PearceP ArchambaultInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 8, Pp 117-130 (2016)
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
MF Lavoie
CW McKindsey
CM Pearce
P Archambault
Influence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes
description Bivalve aquaculture introduces high densities of farmed organisms to the natural environment with potential consequences on a number of ecosystem processes, including modification of nutrient fluxes (e.g. NH4, NOX, PO4, and Si(OH)4) and benthic respiration, and may impact benthic communities. Infaunal clam culture may influence the environment due to the clams themselves [their metabolic processes (e.g. feeding, respiration), production of faeces/pseudofaeces, and/or trapping of organic matter], the farm structures, or the fouling on these structures. This study examined how farmed Manila clams Venerupis philippinarum, the nets placed on beaches to protect them from predators, and the fouling organisms growing on these nets modify nutrient fluxes, benthic respiration, and benthic community structure in coastal British Columbia, Canada. In 2012, a manipulative experiment involving sixty 2.25 m2 plots and 6 treatments was conducted on an intertidal farmed beach to evaluate the effect of clams (presence/absence) and net status (fouled, cleaned, and absent). Percentage organic matter in the first centimetre of sediment was significantly greater with the presence of clams than without. The abundance and taxonomic richness of organisms in sediments were significantly affected by net status. Nutrient fluxes and oxygen consumption increased significantly with the presence of clams, the latter also increasing with the presence of nets and fouling on nets (incubated under dark conditions). These results show that farmed clams and the structures used to culture them influence several environmental parameters, and provide a better understanding of the role of these factors in modulating the benthic environment.
format article
author MF Lavoie
CW McKindsey
CM Pearce
P Archambault
author_facet MF Lavoie
CW McKindsey
CM Pearce
P Archambault
author_sort MF Lavoie
title Influence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes
title_short Influence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes
title_full Influence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes
title_fullStr Influence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes
title_full_unstemmed Influence of intertidal Manila clam Venerupis philippinarum aquaculture on biogeochemical fluxes
title_sort influence of intertidal manila clam venerupis philippinarum aquaculture on biogeochemical fluxes
publisher Inter-Research
publishDate 2016
url https://doaj.org/article/b0e53641c1ca4197a435af3789c72308
work_keys_str_mv AT mflavoie influenceofintertidalmanilaclamvenerupisphilippinarumaquacultureonbiogeochemicalfluxes
AT cwmckindsey influenceofintertidalmanilaclamvenerupisphilippinarumaquacultureonbiogeochemicalfluxes
AT cmpearce influenceofintertidalmanilaclamvenerupisphilippinarumaquacultureonbiogeochemicalfluxes
AT parchambault influenceofintertidalmanilaclamvenerupisphilippinarumaquacultureonbiogeochemicalfluxes
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