Length-weight relationship of skipjack, Katsuwonus pelamis(Linnaeus) and yellowfin tuna Thunnus albacares (Bonnaterre)from Minicoy waters

One of the major objectives of the research programme on tunas at Minicoy Island, is to collect data on length frequency distribution of skipjack, Katsuwonus pelamis and yellowfin tuna Thunnus albacares which are caught by pole and line fishing. In order to utilize these length frequency data and to convert catch data from kilograms to number of fish for the purposes of estimating average weights and the population sizes, it becomes essential to estimate the length-weight relationship of these species.