Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China

Selenium is known as a ‘double-edged sword’ element on account of its dual beneficial and toxic effects on organisms, depending on its concentration and chemical form. Dissolved inorganic selenium (DISe) concentration in the water column and selenium content in biological species were investigated i...

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Autores principales:	Y Chang, J Zhang, J Qu, Z Jiang, R Zhang
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/5e972eac79774343a6f620d0234817eb
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spelling	oai:doaj.org-article:5e972eac79774343a6f620d0234817eb2021-11-11T11:02:27ZInfuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China1869-215X1869-753410.3354/aei00163https://doaj.org/article/5e972eac79774343a6f620d0234817eb2016-04-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v8/p247-260/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534Selenium is known as a ‘double-edged sword’ element on account of its dual beneficial and toxic effects on organisms, depending on its concentration and chemical form. Dissolved inorganic selenium (DISe) concentration in the water column and selenium content in biological species were investigated in a typical aquacultural area in Sanggou Bay, China. In addition to sampling within Sanggou Bay, the main sources of DISe into Sanggou Bay were sampled to estimate selenium transport from different sources. Results showed that DISe and selenite [Se(IV)] concentrations averaged, respectively, 0.69 nmol l-1 and 0.28 nmol l-1, with ranges 0.21 to 1.36 nmol l-1 and 0.07 to 0.58 nmol l-1, in the surface water of Sanggou Bay. The DISe in Sanggou Bay remained well below the toxic levels. The DISe and Se(IV) concentrations varied temporally, with lows in summer and highs in spring and autumn. Concentrations showed strong horizontal gradients from the coast to offshore areas within the bay, as significantly influenced by the intensive and widespread seaweeds and bivalves aquaculture activity in the bay. The highest selenium content (mean ± SD) was observed in scallops (3.6 ± 0.7 µg g-1), followed by oyster (1.6 ± 0.4 µg g-1), phytoplankton (0.9 ± 0.3 µg g-1), Gracilaria lemaneiformis (0.063 ± 0.008 µg g-1) and kelp (0.032 ± 0.005 µg g-1). The main source of DISe in Sanggou Bay was water exchange with the Yellow Sea, whereas the most important sink was biological activity, which removed 53 ± 12% of the incoming selenium from bay waters.Y ChangJ ZhangJ QuZ JiangR ZhangInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 8, Pp 247-260 (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 Y Chang J Zhang J Qu Z Jiang R Zhang Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China
description	Selenium is known as a ‘double-edged sword’ element on account of its dual beneficial and toxic effects on organisms, depending on its concentration and chemical form. Dissolved inorganic selenium (DISe) concentration in the water column and selenium content in biological species were investigated in a typical aquacultural area in Sanggou Bay, China. In addition to sampling within Sanggou Bay, the main sources of DISe into Sanggou Bay were sampled to estimate selenium transport from different sources. Results showed that DISe and selenite [Se(IV)] concentrations averaged, respectively, 0.69 nmol l-1 and 0.28 nmol l-1, with ranges 0.21 to 1.36 nmol l-1 and 0.07 to 0.58 nmol l-1, in the surface water of Sanggou Bay. The DISe in Sanggou Bay remained well below the toxic levels. The DISe and Se(IV) concentrations varied temporally, with lows in summer and highs in spring and autumn. Concentrations showed strong horizontal gradients from the coast to offshore areas within the bay, as significantly influenced by the intensive and widespread seaweeds and bivalves aquaculture activity in the bay. The highest selenium content (mean ± SD) was observed in scallops (3.6 ± 0.7 µg g-1), followed by oyster (1.6 ± 0.4 µg g-1), phytoplankton (0.9 ± 0.3 µg g-1), Gracilaria lemaneiformis (0.063 ± 0.008 µg g-1) and kelp (0.032 ± 0.005 µg g-1). The main source of DISe in Sanggou Bay was water exchange with the Yellow Sea, whereas the most important sink was biological activity, which removed 53 ± 12% of the incoming selenium from bay waters.
format	article
author	Y Chang J Zhang J Qu Z Jiang R Zhang
author_facet	Y Chang J Zhang J Qu Z Jiang R Zhang
author_sort	Y Chang
title	Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China
title_short	Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China
title_full	Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China
title_fullStr	Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China
title_full_unstemmed	Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China
title_sort	infuence of mariculture on the distribution of dissolved inorganic selenium in sanggou bay, northern china
publisher	Inter-Research
publishDate	2016
url	https://doaj.org/article/5e972eac79774343a6f620d0234817eb
work_keys_str_mv	AT ychang infuenceofmaricultureonthedistributionofdissolvedinorganicseleniuminsanggoubaynorthernchina AT jzhang infuenceofmaricultureonthedistributionofdissolvedinorganicseleniuminsanggoubaynorthernchina AT jqu infuenceofmaricultureonthedistributionofdissolvedinorganicseleniuminsanggoubaynorthernchina AT zjiang infuenceofmaricultureonthedistributionofdissolvedinorganicseleniuminsanggoubaynorthernchina AT rzhang infuenceofmaricultureonthedistributionofdissolvedinorganicseleniuminsanggoubaynorthernchina
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Infuence of mariculture on the distribution of dissolved inorganic selenium in Sanggou Bay, northern China

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