Publication Date:
2021-05-19
Description:
Long-term variations of phytoplankton communities in coastal waters have been rarely studied in many places over the world and in Vietnam. We analyse variations in species number and abundance of phytoplankton in Van Phong bay, South Central Vietnam during the last three decades basing on data of various projects. These variations were remarkable and depended upon changes in seasons, tides, and sampling depths over the time. Scales of these changes reflected sampling locations, water-exchange intensities and the environmental characteristics of sampling site. There were lower numbers of species recorded before 2004 probably because of limitations in sampling and species identification. A total of 229 species taxa were identified during May 2013, in which 39 species were firstly recorded in the study waters. High cell densities were found in February 2004, November 2005, and October 2009, mostly during northeast monsoon. In summary, small cell - size diatoms of genera Chaetoceros, Pseudo-nitzschia, Bacteriastrum, and Skeletonema frequently dominated. However, by large species, e.g. Noctiluca scintillans and Rhizosolenia imbricata were occasionally dominant in carbon biomass.
Description:
Published
Keywords:
Phytoplankton
Repository Name:
AquaDocs
Type:
Journal Contribution
,
Not Known
Format:
pp. 104-120
