Later, in 1982, a core area of 110 km2 was declared Marine National Park under the provisions of the Wildlife (protection) Act, 1972 of India.
There are 42 islands on the Jamnagar coast in the Marine National Park, most of them surrounded by reefs.
[8] A surprisingly large scale greater flamingo colony, reaching up to 20,000 nests is known to occur along the gulf and many other birds species found here like crab plovers, sandpipers, western reef egret, great egret, ruff, eurasian oystercatcher, greenshanks, redshanks, gulls, skimmers, ducks, pelicans, storks, Godwits, terns.
[11] In recent years, biodiversity of marine park has been under threat due to extraction of corals and sands by cement industries, increased turbidity of water, oil refineries, chemical industries and mechanised fishing boats.
[1] At present, 31 species of corals are reported in the Marine National Park (Kumar et al. 2014).