Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators

Aquaculture conducted in sea cages typically releases organic and inorganic wastes which deposit at the seafloor and may influence resident benthic communities. In regions with predominantly hard bottom substrates such as Newfoundland, Canada, the monitoring of aquaculture waste buildup at the seafl...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	R. Knight, JTP. Verhoeven, F. Salvo, D. Hamoutene, SC. Dufour
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Benthic mats Aquaculture impacts Monitoring Hard substrates Bacterial communities Aquaculture markers Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/12a21719c19e42b49ef59495bcea3c2a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:12a21719c19e42b49ef59495bcea3c2a
record_format	dspace
spelling	oai:doaj.org-article:12a21719c19e42b49ef59495bcea3c2a2021-12-01T04:41:36ZValidation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators1470-160X10.1016/j.ecolind.2020.107283https://doaj.org/article/12a21719c19e42b49ef59495bcea3c2a2021-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20312255https://doaj.org/toc/1470-160XAquaculture conducted in sea cages typically releases organic and inorganic wastes which deposit at the seafloor and may influence resident benthic communities. In regions with predominantly hard bottom substrates such as Newfoundland, Canada, the monitoring of aquaculture waste buildup at the seafloor is conducted through the use of visual indicators such as bacterial mats. To ascertain the validity of bacterial mats as indicators of aquaculture deposits, we examine relationships between substrate elemental and organic matter concentrations, bacterial community composition and the presence or absence of white bacterial mats. Substrates with bacterial communities previously defined as belonging to high impact and recently disturbed bacterial clusters showed higher concentrations of abiotic markers of aquaculture compared to substrates with low impact or intermediate impact bacterial communities. Bacterial mat presence was associated with the four pre-defined bacterial community clusters, while mat absence was mainly observed in substrates with bacterial communities indicative of low impact. Although visual indicators are less sensitive ecological indicators of benthic aquaculture effects than the determination of the identity of bacterial communities, bacterial mat presence remains a valid indicator of aquaculture-linked deposits atop hard-bottom dominated substrates. However, the absence of bacterial mats may be indicative of conditions ranging from no aquaculture impacts to low levels of deposition, and should be interpreted with caution.R. KnightJTP. VerhoevenF. SalvoD. HamouteneSC. DufourElsevierarticleBenthic matsAquaculture impactsMonitoringHard substratesBacterial communitiesAquaculture markersEcologyQH540-549.5ENEcological Indicators, Vol 122, Iss , Pp 107283- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Benthic mats Aquaculture impacts Monitoring Hard substrates Bacterial communities Aquaculture markers Ecology QH540-549.5
spellingShingle	Benthic mats Aquaculture impacts Monitoring Hard substrates Bacterial communities Aquaculture markers Ecology QH540-549.5 R. Knight JTP. Verhoeven F. Salvo D. Hamoutene SC. Dufour Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators
description	Aquaculture conducted in sea cages typically releases organic and inorganic wastes which deposit at the seafloor and may influence resident benthic communities. In regions with predominantly hard bottom substrates such as Newfoundland, Canada, the monitoring of aquaculture waste buildup at the seafloor is conducted through the use of visual indicators such as bacterial mats. To ascertain the validity of bacterial mats as indicators of aquaculture deposits, we examine relationships between substrate elemental and organic matter concentrations, bacterial community composition and the presence or absence of white bacterial mats. Substrates with bacterial communities previously defined as belonging to high impact and recently disturbed bacterial clusters showed higher concentrations of abiotic markers of aquaculture compared to substrates with low impact or intermediate impact bacterial communities. Bacterial mat presence was associated with the four pre-defined bacterial community clusters, while mat absence was mainly observed in substrates with bacterial communities indicative of low impact. Although visual indicators are less sensitive ecological indicators of benthic aquaculture effects than the determination of the identity of bacterial communities, bacterial mat presence remains a valid indicator of aquaculture-linked deposits atop hard-bottom dominated substrates. However, the absence of bacterial mats may be indicative of conditions ranging from no aquaculture impacts to low levels of deposition, and should be interpreted with caution.
format	article
author	R. Knight JTP. Verhoeven F. Salvo D. Hamoutene SC. Dufour
author_facet	R. Knight JTP. Verhoeven F. Salvo D. Hamoutene SC. Dufour
author_sort	R. Knight
title	Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators
title_short	Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators
title_full	Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators
title_fullStr	Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators
title_full_unstemmed	Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators
title_sort	validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/12a21719c19e42b49ef59495bcea3c2a
work_keys_str_mv	AT rknight validationofvisualbacterialmatassessmentataquaculturesitesthroughabioticandbioticindicators AT jtpverhoeven validationofvisualbacterialmatassessmentataquaculturesitesthroughabioticandbioticindicators AT fsalvo validationofvisualbacterialmatassessmentataquaculturesitesthroughabioticandbioticindicators AT dhamoutene validationofvisualbacterialmatassessmentataquaculturesitesthroughabioticandbioticindicators AT scdufour validationofvisualbacterialmatassessmentataquaculturesitesthroughabioticandbioticindicators
_version_	1718405803194449920

Validation of visual bacterial mat assessment at aquaculture sites through abiotic and biotic indicators

Ejemplares similares