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Analysis on composition and correlations of booly lengthand body weight and between therm of Argentine shortfin squid Illex argentinus

Yin Zengqiang~(1,2) Kong Lihui~3(1.Marine Engineering college of Dalian Fisheries University,Dalian 116023,China;2.Ocean college of Shanghai Fisheries University,Shanghai 20090,China;3.Liaoning Marine Fisheries Group Co.,Dalian l16113,China)  
Based on the data of squid fishery of Liaoning Marine Fisheries Group Co.in the Southwest Atlantic from Dec.,2001 to Apr.,2002,length structure,weight structure and the relationship between length and weight were analyzed.The result indicated that in South fishing ground(60°W—61°W,45°S—47°S) and North fishing ground(57°W—58°W,41°S—42°S),the main length group of 1llex argentinus are respectively 20~21cm and 23~24cm;the main weight group of it are respectively 100~200g and 400g;the equation of the relationship between length and weight are respectively W=2.7×10~(-3)L~(3.628) and W=4.9×10~(-2)L~(2.792).And the discussion was made.
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