Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada

Aquaculture has become a rapidly growing industry: over the past 3 decades, commercial production has steadily increased, and further expansion seems likely. However, the rise of aquaculture has been accompanied by concerns, especially regarding environmental sustainability. Substrates located under...

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Autores principales:	JTP Verhoeven, F Salvo, D Hamoutene, SC Dufour
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2016
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/7d24783041ef450ba787f449824d36f7
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spelling	oai:doaj.org-article:7d24783041ef450ba787f449824d36f72021-11-11T11:07:43ZBacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada1869-215X1869-753410.3354/aei00204https://doaj.org/article/7d24783041ef450ba787f449824d36f72016-11-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v8/p637-646/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Aquaculture has become a rapidly growing industry: over the past 3 decades, commercial production has steadily increased, and further expansion seems likely. However, the rise of aquaculture has been accompanied by concerns, especially regarding environmental sustainability. Substrates located under aquaculture sites receive large influxes of organic matter that can subsequently create anoxic conditions and thereby impact existing benthic communities. Shifts in the relative abundance of specific groups of bacteria could prove to be important indicators of impact and remediation. Here, we investigated bacterial community composition via 16S rRNA gene sequencing on isolated DNA from flocculent matter samples and associated bacterial mats under a hard-bottom aquaculture site in Newfoundland, Canada. We describe the heterogeneous community present in the flocculent matter, characterized by high relative abundances of the genera Spirochaeta (12%), Prolixibacter (5.6%) and Marinifilum (4.6%). Bacterial mats were not composed of Beggiatoa as often hypothesized, but instead were dominated by the genera Spirochaeta (15%), Prevotella (21%), Meniscus (11%) and Odoribacter (20%). Our findings provide insights into the bacterial composition of flocculent matter deposited on hard substrates and undergoing degradation, and point to 3 unexpected bacterial genera as potential indicators of organic enrichment.JTP VerhoevenF SalvoD HamouteneSC DufourInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 8, Pp 637-646 (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 JTP Verhoeven F Salvo D Hamoutene SC Dufour Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada
description	Aquaculture has become a rapidly growing industry: over the past 3 decades, commercial production has steadily increased, and further expansion seems likely. However, the rise of aquaculture has been accompanied by concerns, especially regarding environmental sustainability. Substrates located under aquaculture sites receive large influxes of organic matter that can subsequently create anoxic conditions and thereby impact existing benthic communities. Shifts in the relative abundance of specific groups of bacteria could prove to be important indicators of impact and remediation. Here, we investigated bacterial community composition via 16S rRNA gene sequencing on isolated DNA from flocculent matter samples and associated bacterial mats under a hard-bottom aquaculture site in Newfoundland, Canada. We describe the heterogeneous community present in the flocculent matter, characterized by high relative abundances of the genera Spirochaeta (12%), Prolixibacter (5.6%) and Marinifilum (4.6%). Bacterial mats were not composed of Beggiatoa as often hypothesized, but instead were dominated by the genera Spirochaeta (15%), Prevotella (21%), Meniscus (11%) and Odoribacter (20%). Our findings provide insights into the bacterial composition of flocculent matter deposited on hard substrates and undergoing degradation, and point to 3 unexpected bacterial genera as potential indicators of organic enrichment.
format	article
author	JTP Verhoeven F Salvo D Hamoutene SC Dufour
author_facet	JTP Verhoeven F Salvo D Hamoutene SC Dufour
author_sort	JTP Verhoeven
title	Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada
title_short	Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada
title_full	Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada
title_fullStr	Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada
title_full_unstemmed	Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada
title_sort	bacterial community composition of flocculent matter under a salmonid aquaculture site in newfoundland, canada
publisher	Inter-Research
publishDate	2016
url	https://doaj.org/article/7d24783041ef450ba787f449824d36f7
work_keys_str_mv	AT jtpverhoeven bacterialcommunitycompositionofflocculentmatterunderasalmonidaquaculturesiteinnewfoundlandcanada AT fsalvo bacterialcommunitycompositionofflocculentmatterunderasalmonidaquaculturesiteinnewfoundlandcanada AT dhamoutene bacterialcommunitycompositionofflocculentmatterunderasalmonidaquaculturesiteinnewfoundlandcanada AT scdufour bacterialcommunitycompositionofflocculentmatterunderasalmonidaquaculturesiteinnewfoundlandcanada
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Bacterial community composition of flocculent matter under a salmonid aquaculture site in Newfoundland, Canada

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