Biological and chemical studies of sea-surface microlayer (SML) in Daya Bay, China IIA. Biological and chemical characteristics of the SML and the correlation among them

Two cruises for multi-discipline investigation were conducted in October and November, 1998 in Daya Bay to collect: (1) samples from five levels including sea-surface microlayer (SML), subsurface (SSL), surface, body (mid-column) and bottom water; and (2) observational data on chlorophyll-a and nutr...

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Bibliographic Details
Published in:Chinese journal of oceanology and limnology 2001-09, Vol.19 (3), p.272-281
Main Authors: Zheng-bin, Zhang, Ming-xiang, Pan, Zhao-ding, Wang, Wei, Zhao, Hong-hui, Huang, Gui-feng, Wei, Hong-lian, Gao, Yun-hui, Peng, Zhuo-hong, Zhu, Li, Li
Format: Article
Language:English
Subjects:
Biogeochemistry
Bottom water
Chlorophyll
Chlorophyll a
Cruises
Marine biology
Nutrients
Oceanography
Organic matter
Phosphates
Phytoplankton
Plankton
Surface microlayer
Surface microlayers
Turbidity
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Summary:Two cruises for multi-discipline investigation were conducted in October and November, 1998 in Daya Bay to collect: (1) samples from five levels including sea-surface microlayer (SML), subsurface (SSL), surface, body (mid-column) and bottom water; and (2) observational data on chlorophyll-a and nutrients, and important factors such as turbidity, BOD, COD, TN, TP and phytoplankton. Results showed that there was no enrichment of chlorophyll-a in the SML, but quite notable enrichment of some organic matter and nutrients. Compared with the findings in earlier researches, PO^sub 4^-P and SiO^sub 3^-Si have decreased, and the N/P ratio has increased obviously to even more than 100 in the SML. It is concluded preliminarily that PO^sub 4^-P and SiO^sub 3^-Si mainly determine phytoplankton growth in Daya Bay at present.[PUBLICATION ABSTRACT]
ISSN:0254-4059
2096-5508
1993-5005
2523-3521
DOI:10.1007/BF02850665