there's an old belief in the coastal fish-eating state of Goa: if you don't want to spoil your holiday, beware of what you eat.
Now, the state health department has issued a similar warning. Goans, particularly those from the southernmost taluka of Canacona, have been cautioned not to consume any type of shell fish collected from around the area due to a toxic algal bloom found there. Algal blooms are impurities formed by algae on the water surface.
The occurrence of this phenomenon
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/unhealthy-bloom
[2] http://admin.indiaenvironmentportal.org.in/category/author/frederick-noronha
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/food-contamination
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fish
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/governance
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/goa