The parameters of the length-weight relationship of the form W = aLb are presented for 51 species of commercially important marine fishes and shellfishes caught along the southern coast of Karnataka, India. Samples from commercial (trawl, purse seines, gill nets) and artisanal gears were taken...

Parameters of the length-weight relationship are presented for 85 fish species from the marine and estuarine regions of the central Brazilian coast (latitude 13░ to 23░ S). Three different methods were used. A non-linear iterative process using the quasi-Newton algorithm yielded a better fit...

The ringnet fishery off Davao, southern Philippines, is briefly described. The major species (36%) in the catch is Decapterus kurroides (Pisces, Carangidae), whose growth parameters and mortality rates (natural and fishing) are estimated, based on length-frequency data collected in 1985-1986 and...

An attempt to fit the von Bertalanffy growth equation to three species of deep sea snappers using the ELEFAN method was unsuccessful, mainly because the fish are slow-growing, long lived species. Problems were also encountered in estimating asymptotic length and Z/K using a Wetherall plot....

Catch assessment estimates for the motorized and non-motorized canoes at Boa-Manga (Cameroon) were found to be 5.13 and 2.70 t/year, respectively, leading to an estimated lower limit for the production of the Ocean division (100 km coastline) of 1190 t/year. The net economic benefit for the...

A time series of catch and effort data (1970-78) of the Ivorian purse seine fishery in Sierra Leone waters was analyzed using the Schaefer production model. The regression of C/f on effort was significant and the resulting estimates of MSY was 14640 tonnes with F msy=1734 boat days.