Is Occurrence of Harmful Algal Blooms in the Exclusive Economic Zone of India on the Rise?

[摘要] Occurrence, increase in frequency, intensity and spatial coverage of harmful algal blooms during the past decade in the EEZ of India are documented here. Eighty algal blooms were recorded during the period 1998–2010. Of the eighty algal blooms, 31 blooms were formed by dinoflagellates, 27 by cyanobacteria, and 18 by diatoms. Three raphidophyte and one haptophyte blooms were also observed. Potentially toxic microalgae recorded from the Indian waters wereAlexandriumspp.,Gymnodiniumspp.Dinophysisspp.,Coolia monotis,Prorocentrum lima, andPseudo-nitzschiaspp. Examination of available data from the literature during the last hundred years andin situobservations during 1998–2010 indicates clear-cut increase in the occurrence of HABs in the Indian EEZ.

[学科分类] 地质学