CAJ | 학술논문

根据2011年3月、5月、7月、9月和12月在海州湾及其邻近海域进行的5个航次底拖网调查资料,对5种主要鱼类[包括六丝钝尾虾虎鱼(Amblychaeturichthys hexanema)、短鳍(Callionymus kitaharae)、长吻红舌鳎(Cynoglossus lighti)鳚、方氏云(Enedrias fangi)和棘头梅童鱼(Collichthys lucidus)]的种群参数进行了估算。结果表明,在这5种鱼类中,生长系数(k)鳚最高的是方氏云(0.76),其次是六丝钝尾虾虎鱼(0.70),其他3种鱼类的生长系数均小于0.60；总死亡系数(Z)鳚最高的鱼种是方氏云(4.62),其次是长吻红舌鳎(3.55)、六丝钝尾虾虎鱼(2.99)和棘头梅童鱼(2.99),短鳍的总死亡率最低(1.60)；长吻红舌鳚鳎、方氏云和棘头梅童鱼的开发率(E)最高,分别为0.74、0.74和0.73,此外,六丝钝尾虾虎鱼的开发率也较高(E=0.60),而仅有短鳍的开发率较低(E=0.43)；长吻红舌鳎、方氏云鳚和棘头梅童鱼的平均选择体长(L50)较大,分别为145.2、107.1和98.7 mm,而六丝钝尾虾虎鱼和短鳍的平均选择体长较小,分别为60.0 mm和48.4 mm；鳚通过计算方氏云和棘头梅童鱼2种鱼类的生长表现指数(φ′),并与其他学者的研究结果相比较,发现同一鱼种的生长表现指数随着栖息海域纬度的降低而呈上升趋势。
근거2011년3월、5월、7월、9월화12월재해주만급기린근해역진행적5개항차저타망조사자료,대5충주요어류[포괄륙사둔미하호어(Amblychaeturichthys hexanema)、단기(Callionymus kitaharae)、장문홍설탑(Cynoglossus lighti)위、방씨운(Enedrias fangi)화극두매동어(Collichthys lucidus)]적충군삼수진행료고산。결과표명,재저5충어류중,생장계수(k)위최고적시방씨운(0.76),기차시륙사둔미하호어(0.70),기타3충어류적생장계수균소우0.60；총사망계수(Z)위최고적어충시방씨운(4.62),기차시장문홍설탑(3.55)、륙사둔미하호어(2.99)화극두매동어(2.99),단기적총사망솔최저(1.60)；장문홍설위탑、방씨운화극두매동어적개발솔(E)최고,분별위0.74、0.74화0.73,차외,륙사둔미하호어적개발솔야교고(E=0.60),이부유단기적개발솔교저(E=0.43)；장문홍설탑、방씨운위화극두매동어적평균선택체장(L50)교대,분별위145.2、107.1화98.7 mm,이륙사둔미하호어화단기적평균선택체장교소,분별위60.0 mm화48.4 mm；위통과계산방씨운화극두매동어2충어류적생장표현지수(φ′),병여기타학자적연구결과상비교,발현동일어충적생장표현지수수착서식해역위도적강저이정상승추세。
Based on data collected from bottom trawl surveys in Haizhou Bay and the adjacent areas during March, May, July, September and December in 2011, the population parameters of five major fish species (Amblychaeturich-thys hexanema, Callionymus kitaharae, Cynoglossus lighti, Enedrias fangi and Collichthys lucidus) were analyzed. The results indicated that E. fangi had the highest growth coefficient (k) (0.76), followed by A. hexanema (0.70). The k val-ues for the other three fish species were less than 0.6. The highest total mortality coefficient(Z) was found for E. fangi(4.62), followed by C. lighti(3.53), A. hexanema (2.99) and C. lucidus(2.99). C. kitaharae(1.60) had the lowest Z value. C. lighti, E. fangi and C. lucidus had the highest exploitation rates(E), followed by A. hexanema. The E values for these four species were 0.74, 0.74, 0.73 and 0.60, respectively. However, the lowest E value was 0.43 for C. kitaharae. C. lighti, E. fangi and C. lucidus had higher L50(length at first capture) values(145.2, 107.1 and 98.7 mm, respectively). However, A. hexanema and C. kitaharae had lower L50 values(60.0 and 48.4 mm, respectively). The growth perform-ance indexes (φ′) for C. lucidus and E. fangi in different areas had relatively higher values in the lower latitude areas.