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An overview of dinoflagellate cysts in recent sediments along the west coast of India

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Title An overview of dinoflagellate cysts in recent sediments along the west coast of India
 
Creator D’Silva, Maria Shamina
Anil, Arga Chandrashekar
D’Costa, Priya Mallika
 
Subject Dinoflagellate cysts
Heterotrophic
Harmful
Sediment texture
West coast of India
 
Description 697-709
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.
 
Date 2011-11-18T04:31:31Z
2011-11-18T04:31:31Z
2011-10
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/13082
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.40(5) [October 2011]