杜氏鰤人工苗养殖生物学特性及养殖技术研究  

STUDIES ON THE BIOLOGICAL CHARACTERISTICS AND CULTURAL TECHNIQUE OF ARTIFICIAL SEED OF Seriola dumerili

作　　者：胡石柳[1] 纪荣兴[2] 

机构地区：[1]集美水产学校,厦门361012 [2]集美大学水产学院,厦门361021

出　　处：《海洋科学》2003年第7期5-9,共5页Marine Sciences

基　　金：厦门市科委项目3502Z95103号和3502Z96101号

摘　　要：报道杜氏鰤(Seriola dumerili)人工苗养殖生物学特性及养殖技术研究结果。在海区水温6～30.5℃,海水盐度14～33,溶解氧6.5～7.3 mg/L,pH7.5～8.1,水流为15～35 cm/s的网箱中,杜氏鰤人工苗叉长40～50 mm,体质量1.5～1.7 g,经208 d养殖,叉长达到330～388mm,体质量达到950～1400 g,饲料系数为11,成活率为71.7％;养殖720 d,体质量达4.5～6.5kg,饲料系数为8;养殖1080 d,体质量达7.5～11.5 kg,饲料系数为7;养殖1440 d,体质量达13～15.5 kg,饲料系数为6;养殖1800 d,体质量达15.5～18.5 kg,饲料系数为5。第4年性腺发育成熟,4～5月份,海上网箱人工催产,平均每尾雌鱼可产卵1.8kg左右。This paper reports the biological characteristics and cultural technique of artificial seed of Seriola dumerili. During the experiment periods the range of temperature was 6 ~ 30.5 C , salinity 14 ~ 33, dissolved oxygen (Do) 6.5 ~ 7.3 mg/L, pH 7.5 ~ 8.1, and flow rate 15 ~ 35 cm/ s. The results showed that by marine cage cultured for 208 d, the artificial fingerlings of Seriola dumerili grew from 40 ~ 50 mm to 330 ~ 388 mm, its weight from 1.5- 1.7 g to 950 ~ 1 400 g, and the feed coefficient was 11, survival rate 71.7% ; cultured for 720 d, 1 080 d, 1 440 d, 1 800 d, grew to 4.5 - 6.5 kg, 7.5- 11.5kg, 13- 15.5kg, 15.5- 18.5kg, and the feed coefficients were 8, 7, 6, 5 respectively. At the 4th year the sex gland was mature. By artificially induced spawning in marine cage, the mature female fish spawned about 1.8 kg eggs each from April to May.

关 键 词：杜氏鰤 人工苗 生物学特性 养殖技术 

分 类 号：S965.211[农业科学—水产养殖]