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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
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Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.40 [2011] >
IJMS Vol.40(5) [October 2011] >
| Title: | An overview of dinoflagellate cysts in recent sediments along the west coast of India |
| Authors: | D’Silva, Maria Shamina
Anil, Arga Chandrashekar
D’Costa, Priya Mallika |
| Keywords: | Dinoflagellate cysts
Heterotrophic
Harmful
Sediment texture
West coast of India |
| Issue Date: | Oct-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Distribution and abundance of dinoflagellate
cysts in recent sediments along the west coast of India (26 coastal stations and 3
ports) is presented. A total of 47 different types of cysts and a maximum
abundance of 1076 cysts g–1 dry sediment were recorded. Highest cyst
abundance was recorded at coastal station Mangalore (801 cysts g –1
dry sediment) and Kochi
port (1076 cysts g–1 dry sediment). Lowest cyst abundance was
observed at coastal stations from Kochi to Trivandrum. This
difference may be attributed to the composition of sediment, since sandy
stations had lower abundance and diversity of cysts. Heterotrophic
dinoflagellate cysts, mainly Protoperidinium
species, were the most diversified, predominating at most of the stations
sampled. Cysts of potential Harmtul Algal Bloom (HAB) species capable of
forming blooms were also detected in the sediment. Effect of the environmental
settings of the study area such as upwelling, South West monsoon and
anthropogenic pressures on the dynamics of these HAB species in Indian waters
needs to be elucidated. |
| Page(s): | 697-709 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.40(5) [October 2011]
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