Abstract:
:Phytoplankton diversity, primary and bacterial production, nutrients and metallic contaminants were measured during the wet season (July) and dry season (March) in the Bach Dang Estuary, a sub-estuary of the Red River system, Northern Vietnam. Using canonical correspondence analysis we show that phytoplankton community structure is potentially influenced by both organometallic species (Hg and Sn) and inorganic metal (Hg) concentrations. During March, dissolved methylmercury and inorganic mercury were important factors for determining phytoplankton community composition at most of the stations. In contrast, during July, low salinity phytoplankton community composition was associated with particulate methylmercury concentrations, whereas phytoplankton community composition in the higher salinity stations was more related to dissolved inorganic mercury and dissolved mono and tributyltin concentrations. These results highlight the importance of taking into account factors other than light and nutrients, such as eco-toxic heavy metals, in understanding phytoplankton diversity and activity in estuarine ecosystems.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Rochelle-Newall EJ,Chu VT,Pringault O,Amouroux D,Arfi R,Bettarel Y,Bouvier T,Bouvier C,Got P,Nguyen TM,Mari X,Navarro P,Duong TN,Cao TT,Pham TT,Ouillon S,Torréton JPdoi
10.1016/j.marpolbul.2011.08.044subject
Has Abstractpub_date
2011-11-01 00:00:00pages
2317-29issue
11eissn
0025-326Xissn
1879-3363pii
S0025-326X(11)00468-1journal_volume
62pub_type
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