Water is one of the most of important substance on Earth. All plants and animals must have water survive. If there was no water there would be no life on the Earth. Water covers 71% of the Earth's surface. Environmental factors in marine biomes are like light, pressure, salinity, dissolve gases (O, CO2, N), nutrients, temperature, salinity, density, waves, tides etc. However, although isolated incidents have illustrated how marine animal mortality is associated with ecosystem change and can impact food safety, food security and public health. Saurashtra is a region located south-western part of Gujarat which occupies a total coastal stretch of 865 km. Saurashtra is a part of an arid peninsula called as Kathiawar. On an average, it receives 500 mm rainfall annually. The south coast of Saurashtra from Dwarka-Kodinar segment stretches for about 250 km. The aims of the present investigation were to study of the coastal water quality, intertidal biodiversityand fisheries resources along the selected coastal area of Madhvad.