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Occurrence of Noctiluca scintillans bloom off Mangalore in the Arabian Sea

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Title Occurrence of Noctiluca scintillans bloom off Mangalore in the
Arabian Sea
Not Available
 
Creator Bhat,G S
Saravanan,Raju
Dineshbabu,A P
Sulochanan,Bindu
Lavanya,S
 
Subject Algal bloom
Arabian Sea
Noctiluca scintillans
Nutrients
Rainfall
 
Description Not Available
A bloom of the dinoflagellate Noctiluca scintillans (Macartney) with a cell density of 10.5 lakh cells l-1 was observed along
the Mangalore coast on 12th May 2011. The high wind velocity during the period caused further movement and dispersion
of the bloom and its presence was observed 250 km away from Mangalore at Karwar by 2nd June 2011. A comparison of the
nutrients in the water samples from January to May 2011 with the corresponding period during the previous year showed
that the levels of silicate (26.86 μg-at l-1), nitrate (59.47μg-at l-1) and total suspended solids (61mg l-1) were highest during
March 2011 in the bloom area. It was observed that the average wind velocity during January to May was 4.4 km h-1 (2010)
and 8.6 km h-1 (2011) respectively. During the first week of June, a total rainfall of 206 mm was recorded. This brought
down the salinity in the river as well as coastal water and the bloom completely disappeared. Significant correlation was
observed between rainfall and silicate in 2010 (p
Not Available
 
Date 2021-09-17T04:07:20Z
2021-09-17T04:07:20Z
2014
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/63566
 
Language English
 
Relation Not Available