Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada

Finfish aquaculture results in the production of particulate waste products that include uneaten feed and faeces. The impact of these wastes on the suspended particle field at 4 open-water fish farms in Canada was studied using high-resolution in situ particle sensors. Within-pen sampling at a sable...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	LM Brager, PJ Cranford, J Grant, SMC Robinson
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/544e9ae225f744d198833f87610fe209
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:544e9ae225f744d198833f87610fe209
record_format	dspace
spelling	oai:doaj.org-article:544e9ae225f744d198833f87610fe2092021-11-16T10:30:43ZSpatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada1869-215X1869-753410.3354/aei00120https://doaj.org/article/544e9ae225f744d198833f87610fe2092015-01-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v6/n2/p135-149/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Finfish aquaculture results in the production of particulate waste products that include uneaten feed and faeces. The impact of these wastes on the suspended particle field at 4 open-water fish farms in Canada was studied using high-resolution in situ particle sensors. Within-pen sampling at a sablefish Anoplopoma fimbria farm in British Columbia provided some evidence of the release of low levels (mean effect <0.2 mg l-1) of waste feed near the surface (1-3 m depth), but no waste signal was detectable in surface waters outside this farm. Enhancement of the particle field was also not apparent in surface waters (0.5-2 m depth) within the boundaries of an Atlantic salmon Salmo salar farm in the Bay of Fundy. However, data collected outside 2 adjacent farms indicated periodic, low-level particle enhancement (significant mean effect of <1.0 mg l-1; p < 0.001) near the surface immediately down-current from the net-pens. Despite the large sample numbers obtained, consistent detection of waste particle enhancement was confounded by the apparently small effect size and natural seston patchiness. These results suggest that any farm-induced effect on the surrounding particle field at the study sites would be highly localized and episodic. Consequently, the potential for enhanced production by co-cultured bivalve filter-feeders at these integrated multi-trophic aquaculture farms is limited by available space close to net-pens and the periodic availability of low levels of suspended particulate fish wastes.LM BragerPJ CranfordJ GrantSMC RobinsonInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 6, Iss 2, Pp 135-149 (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 LM Brager PJ Cranford J Grant SMC Robinson Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada
description	Finfish aquaculture results in the production of particulate waste products that include uneaten feed and faeces. The impact of these wastes on the suspended particle field at 4 open-water fish farms in Canada was studied using high-resolution in situ particle sensors. Within-pen sampling at a sablefish Anoplopoma fimbria farm in British Columbia provided some evidence of the release of low levels (mean effect <0.2 mg l-1) of waste feed near the surface (1-3 m depth), but no waste signal was detectable in surface waters outside this farm. Enhancement of the particle field was also not apparent in surface waters (0.5-2 m depth) within the boundaries of an Atlantic salmon Salmo salar farm in the Bay of Fundy. However, data collected outside 2 adjacent farms indicated periodic, low-level particle enhancement (significant mean effect of <1.0 mg l-1; p < 0.001) near the surface immediately down-current from the net-pens. Despite the large sample numbers obtained, consistent detection of waste particle enhancement was confounded by the apparently small effect size and natural seston patchiness. These results suggest that any farm-induced effect on the surrounding particle field at the study sites would be highly localized and episodic. Consequently, the potential for enhanced production by co-cultured bivalve filter-feeders at these integrated multi-trophic aquaculture farms is limited by available space close to net-pens and the periodic availability of low levels of suspended particulate fish wastes.
format	article
author	LM Brager PJ Cranford J Grant SMC Robinson
author_facet	LM Brager PJ Cranford J Grant SMC Robinson
author_sort	LM Brager
title	Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada
title_short	Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada
title_full	Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada
title_fullStr	Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada
title_full_unstemmed	Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada
title_sort	spatial distribution of suspended particulate wastes at open-water atlantic salmon and sablefish aquaculture farms in canada
publisher	Inter-Research
publishDate	2015
url	https://doaj.org/article/544e9ae225f744d198833f87610fe209
work_keys_str_mv	AT lmbrager spatialdistributionofsuspendedparticulatewastesatopenwateratlanticsalmonandsablefishaquaculturefarmsincanada AT pjcranford spatialdistributionofsuspendedparticulatewastesatopenwateratlanticsalmonandsablefishaquaculturefarmsincanada AT jgrant spatialdistributionofsuspendedparticulatewastesatopenwateratlanticsalmonandsablefishaquaculturefarmsincanada AT smcrobinson spatialdistributionofsuspendedparticulatewastesatopenwateratlanticsalmonandsablefishaquaculturefarmsincanada
_version_	1718426545265049600

Spatial distribution of suspended particulate wastes at open-water Atlantic salmon and sablefish aquaculture farms in Canada

Ejemplares similares