稻田网箱养殖辽河水系中华绒螯蟹幼蟹的个体生长  

The Research of Individual Growth of Eriocheir sinensis for Liaohe Population Juvenile Crab in Paddy Field Net Cage

作　　者：张庆阳[1,2,3,4] 马旭洲[1,2,3,4] 王昂[1,2,3,4] 王武[1,2,3,4] 于永清 

机构地区：[1]上海海洋大学水产与生命学院 [2]上海海洋大学省部共建水产种质资源发掘与利用教育部重点实验室,上海201306 [3]上海市水产养殖工程技术研究中心,上海201306 [4]上海高校知识服务平台上海海洋大学水产动物遗传育种中心,上海201306 [5]盘锦市盘山县河蟹技术研究所,盘锦124000

出　　处：《动物学杂志》2015年第1期112-121,共10页Chinese Journal of Zoology

基　　金：上海市重点学科资助项目(No.Y1101);上海市高校知识服务平台上海海洋大学水产动物遗传育种中心项目(No.ZF1206);美国国际发展署Aqua Fish CRSP项目(No.11395800200)

摘　　要：本实验在室外网箱内监测辽河水系中华绒螯蟹(Eriocheir sinensis)幼蟹阶段个体生长发育的每一次蜕壳生长情况。2013年实验选取雄蟹和雌蟹各200只,记录了每个蜕壳阶段雌蟹和雄蟹的生长,包括壳长、壳宽、总重和蜕壳间隔时长(d),并且观察雌蟹和雄蟹形态特征的变化。实验共进行111 d,幼蟹共蜕壳11次。实验结束时,雄蟹剩余34只,雌蟹剩余42只;雄蟹的特定生长率为(7.176 5±0.168 4)%/d,雌蟹的特定生长率为(7.283 3±0.174 3)%/d;雌蟹生长蜕壳过程中腹部的形态变化大,腹部由三角形变成卵圆形;雄蟹在生长蜕壳过程中螯足的增长明显较雌蟹快,并且在本实验最后一次即第11次蜕壳后螯足腹面内侧出现1小撮绒毛,外侧也出现少量绒毛,但不易被发现。The molt times and morphological features changes of the Liaohe population Chinese mitten crab （Eriocheir sinensis） were further explored. Molting and growth of juveniles of crab were observed on Junvenile carab of 200 individuals for each gender raised in net cages outdoor by recording carapace widthand length, body weight, molting frequency and morphological feature changes. Male and female crabs molted 11 times during the experiment period of I I 1 days in 2014. Totally, 34 male crabs and 42 female crabs survived at the end of the experiment ended. The Special Growth Rates of male and female crabs were （7.176 5 a： 0.168 4） % / d and （ 7.283 3 ± 0.174 3 ） % / d respectively. The abdominal morphological of female crab were obviously changed from triangle to ovoid in molt process （Fig. 5）. The Chela-foot pincers of male crab grew significantly faster than that of female crab and a bit of fluff appeared under the chela-foot and few fluff occurred on the inside and outside of the chela-foot respectively after the eleventh molt （Fig. 6 and Fig. 7）.

关 键 词：中华绒螯蟹 幼蟹 生长 蜕壳 形态特征 

分 类 号：S966.16[农业科学—水产养殖]