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<span style="font-size:11.0pt;font-family: "Times New Roman","serif";mso-fareast-font-family:"Times New Roman";mso-bidi-font-family: Mangal;mso-ansi-language:EN-GB;mso-fareast-language:EN-US;mso-bidi-language: HI" lang="EN-GB">Occurrence of red tide caused by <i>Karenia</i><i style="mso-bidi-font-style: normal"> mikimotoi</i> (toxic dinoflagellate) in the Southwest coast of India</span>

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Title Occurrence of red tide caused by Karenia mikimotoi (toxic dinoflagellate) in the Southwest coast of India
 
Creator Madhu, N V
Reny, P D
Paul, Meenu
Ullas, N
Resmi, P
 
Subject Dinoflagellate bloom
Karenia mikimotoi
Cochin estuary
 
Description 821-825
Intense brownish discoloration was observed in the surface waters of Cochin
barmouth on 21st October 2009, which found to extend a few
kilometers in the coastal waters. Continuous monitoring was carried out in the
region for a period of
5 days (21st to 25th October 2009) and generated data on
changes in water quality and phytoplankton community associated with the bloom.
Relatively high level of inorganic nutrients (ammonia 0.5-9.7 µM, nitrate
1.3-2.9 µM, phosphate
1-2.3 µM, silicate 23.5-39.9 µM) and chlorophyll a (av. 56.8 ± 23.7 mg m-3)
concentration were observed during the bloom period. Microscopic analysis
revealed that the discoloration was caused by an unarmored toxic
dinoflagellate,
Karenia mikimotoi Miyake & Kominami ex Oda (Karenia,
Gymnodiniaceae) belongs to Gymnodiniales, which cause massive fish mortality
by releasing hemolytic compounds.
 
Date 2011-12-24T09:07:09Z
2011-12-24T09:07:09Z
2011-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/13269
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.40(6) [December 2011]