%0 Journal Article
%T Monospecific bloom of noxious raphidophyte Chattonella marina in the coastal water of South West coast of India
%A Kunnatholickal Balakrishnan Padmakumar 1*
%A Lathika Cicily Thomas 1
%A Thaliyakkattil Chandran Salini 1
%A Elizabeth John 1
%A Narayana Ravindranatha Menon 2
%A Veloorkirakathil Narayana Sanjeevan 1
%J International Journal of Biosciences
%D 2011
%I International Network for Natural Sciences
%X A massive monospecific bloom of toxic marine raphidophyte Chattonella marina was observed off Kochi along the southwest coast of India during late September 2009 with very high cell density (1.59 x 107cells L-1) and wide spatial distribution. The tear drop shaped cells were 38-65 ¦Ìm long, 25-30 ¦Ìm wide and having large number of chloroplasts. Almost 90% of the phytoplankton population was composed of C. marina in the bloom area. Other phytoplankters were few in number represented by Skeletonema costatum,Rhizosolenia spp., Chaetoceros spp., Psuedo-nitzschia spp. etc. and among these Skeletonema costatum was dominant with cell density 2.3 x 104cells L-1. The concentration of photosynthetic pigment, chlorophyll a was 8.3 ¦Ìg L-1in the bloom area. Toxicity test using the alcohol extracts of the Chattonellabloom samples showed characteristic neurotoxic symptoms in fishes leading to mortality.
%K Raphidophyte
%K noxious bloom
%K Chattonella marina
%K HABs
%K southwest coast of India.
%U http://innspub.net/documents/IJB-V1No1-p57-69.pdf