Maldive fish
The abundant sea harvest of the Indian Ocean around the Atolls of the Maldives and, Lakshadweep in India yields many pelagic fishes, like skipjack, yellowfin tuna, little tunny (known locally as laṭṭi) and frigate mackerel. All these fishes have been traditionally processed on the Maldive Islands as a main source of food as well as income for Maldivians.
Chalakudy River
The Chalakudy River is known for its diversity, as it contains 98 species of fresh water fishes out of the 152 species known from Kerala. Among these, 35 are endemic species of the Western Ghats and 31 are either vulnerable (11 species), endangered (16 species) or critically endangered (4 species) from indiscriminate collection for the aquarium fish trade, overfishing, pollution, dams and introduced species. According to a report of the National Bureau of Fish Genetic Resources in Lucknow, Chalakudy could well be the richest river in fish diversity in India, with thick vegetation on both sides. 
Among the fish species in the river, the most species rich family are the Cyprinids, followed by Bagrid catfishes and hillstream loaches. Among others, "Horabagrus nigricollaris" and "Sahyadria chalakkudiensis" are endemic to the Chalakudy River.