Observations on the bionomics of the Indian mackerel, Rastrelliger kanagurta (C.), caught in the Lawson's bay, near Waltair ; Andhra coast

Indian mackerel, Rastrelliger kanagurta (C.), is one of the important pelagic, shoaling \nmarine fishes of our country. Although its distribution is known to extend both on the west and \neast coasts, the area between Quilon and Ratnagiri on the west coast is the most productive from \nthe mackerel fishery point of view. Compared with the magnitude of the mackerel landings in \nthis sector, the occurrence of the species on the east coast in small quantities is of no significance. \nHowever, additional knowledge on the biology of the species from various sections of the coastline \nshould be of considerable value to the proper understanding of the bionomics of the mackerel \npopulations over the entire range of their distribution.