CAJ | 학술논문

根据2013年9~10月西非近海调查所获得的鲐鱼样本,对其生物学特性进行初步研究。结果表明：9-10月鲐鱼样本体长范围13.5~29.1cm,优势体长组为19.5~25.5cm；叉长范围13.9~30.7cm,优势叉长组21.5~25.5cm,占整个渔获物的76.09%；体质量范围33~551g,优势体质量组为120~210g；叉长与体质量的关系为W=0.407L1.879(R2=0.538)。其性腺成熟度以Ⅱ、Ⅲ期为主,占整个渔获物样本的81.71%。胃含物摄食等级以2、3级为主。经 ANOVA方差分析发现,9月与10月份鲐鱼样本叉长、体质量、性腺成熟度分布存在着显著性差异(P<0.05)。
근거2013년9~10월서비근해조사소획득적태어양본,대기생물학특성진행초보연구。결과표명：9-10월태어양본체장범위13.5~29.1cm,우세체장조위19.5~25.5cm；차장범위13.9~30.7cm,우세차장조21.5~25.5cm,점정개어획물적76.09%；체질량범위33~551g,우세체질량조위120~210g；차장여체질량적관계위W=0.407L1.879(R2=0.538)。기성선성숙도이Ⅱ、Ⅲ기위주,점정개어획물양본적81.71%。위함물섭식등급이2、3급위주。경 ANOVA방차분석발현,9월여10월빈태어양본차장、체질량、성선성숙도분포존재착현저성차이(P<0.05)。
The biological characteristics of common mackerel were analyzed by the data collected in Coastal waters of West Africa from September to October in 2013.The results showed that the samples had total body lengths from 13.5 cm to 29.1cm,the dominant body lengths varied between 19.5cm and 25.5cm.The fork lengths varied from13.9cm to 30.7cm with the dominant fork lengths from 21.5cm to 25.5cm which occupied 76.09 percent of total catches.The body weights varied from 33g to 551g and the dominant body weights from 120g to 210g.The relationships between fork lengths and body weights fitted by the power exponential function was W=0.407L1.879 R2=0.538.It is found that the sexual maturity at Ⅱ and Ⅲ of the gonad were dominated which take up 81.71 percent of the total. Grade 2 and 3 of the feeding grade were dominated for September to October in 2013.The monthly dis-tributions of fork lengths,body weights and the maturities of gonad had a significant differences be-tween Sep.and Oct.by ANOVA (P<0.05).