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Dinoflagellate cyst distribution in recent sediments along the south-east coast of India

DRS at CSIR-National Institute of Oceanography

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Title Dinoflagellate cyst distribution in recent sediments along the south-east coast of India
 
Creator Narale, D.D.
Patil, J.S.
Anil, A.C.
 
Subject Sediments
Plankton
Spended sedimenT
Sea surface temperature
Sedimentation
Morphology
ISW, India
 
Description The spatial variation in the dinoflagellate cyst assemblage from the south-east coast of India is presented along with a comparison of the cyst abundance from other regions of the world Samples from 8 stations revealed the presence of 24 species from the genera Protoperidinium, Zygabikodinium, Gonyaulax, Lingulodinium and Gyrodinium Cyst abundance was comparatively high at northern stations and was well correlated with the fine-grained (silt-clay dominated) sediments In contrast, low cyst abundance was recorded in sandy sediments at southern stations Fourteen cyst-forming dinoflagellate species previously unrecorded in planktonic samples were detected in the sediments The cyst abundance recorded here is low (29�331 cysts g-1 dry sediment) as compared to sub-tropical and temperate regions, but it is on a par with tropical regions, including the west coast of India Comparison of the cyst assemblage along the Indian coast revealed a smaller number of potentially harmful and red-tide-forming dinoflagellate species on the south-east coast (6 species) than on the west coast (10 species) Calcareous cysts of the genus Scrippsiella reported from the west coast and Visakhapatnam harbour (south-east coast) were not observed in this study although their planktonic cells have been reported.
 
Date 2015-07-03T10:59:13Z
2017-09-30T03:08:01Z
2015-07-03T10:59:13Z
2017-09-30T03:08:01Z
2013
 
Type Journal Article
 
Identifier Oceanologia, vol.55(4); 2013; 979-1003
0078-3234
http://drs.nio.org/drs/handle/2264/7606
 
Language en
 
Relation Oceanologia
SCI
 
Publisher Elsevier