长江口脊尾白虾繁殖生物学

生态学杂志

长江口脊尾白虾繁殖生物学

裴倩倩^1,2,张涛²,杨刚²,赵峰²,宋超²,庄平^2*#br#

（¹上海海洋大学水产与生命技术学院，上海 201306； ^2中国水产科学研究院东海水产研究所，农业部东海与远洋渔业资源开发利用重点实验室，上海 200090）

出版日期:2017-03-10 发布日期:2017-03-10

Reproductive biology of Exopalaemon carinicauda in Yangtze River Estuary.

PEI Qian-qian^1,2, ZHANG Tao², YANG Gang², ZHAO Feng², SONG Chao², ZHUANG Ping^2*#br#

(¹ College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China; ² Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation and Utilization, Ministry of Agriculture, East China Sea Fisheries Research Institute, China Academy of Fishery Sciences, Shanghai 200090, China).

Online:2017-03-10 Published:2017-03-10

摘要/Abstract

摘要： 2014年11月至2015年10月对长江口脊尾白虾（Exopalaemon carinicauda）繁殖生物学进行了研究。结果表明：长江口脊尾白虾体长在25～75 mm，优势体长范围为35～55 mm，平均体长（48±9） mm；周年间月性比变化介于0.89～1.63，年平均性比为1.12±0.22，卡方检验雌雄数量差异不显著；长江口脊尾白虾繁殖期在3—10月，繁殖高峰期在5—8月；5—6月繁殖群体以越年虾为主，7月繁殖群体以当年虾为主；个体绝对生殖力（F）在660～8000粒，与体长（L）呈直线相关，F=68.86L-2072(R²=0.498)；个体绝对生殖力与体重（W）也呈直线相关，F=318.5W+267.0（R²=0.504）。

Abstract: Reproductive biology of Exopalaemon carinicauda was studied from November 2014 to October 2015 in Yangtze River Estuary. The results showed that the body length of E. carinicauda ranged from 25 to 75 mm with an average of (48±9) mm, and dominant body length was 35-55 mm. Annual variation of monthly sex ratio of E. carinicauda ranged from 0.89 to 1.63 with an average of 1.2±0.22. There was no significant difference between male and female numbers by chisquare test. The main breeding season began in the late March and lasted until late October and the spawning peaks occurred in May and August. The reproductive population was mainly overwintering shrimp in May and June, and mainly smallmedium of nonoverwintering shrimp in July. The absolute fecundity (F) ranged from 660 to 8000 eggs. A positive linear correlation between absolute fecundity and body length (L) was observed as following equation: F=68.86L-2072 (R²=0.498). In addition, the absolute fecundity was also linear with body weight (W), namely, F=318.5W+267.0 (R²=0.504).

裴倩倩1,2,张涛2,杨刚2,赵峰2,宋超2,庄平2*. 长江口脊尾白虾繁殖生物学[J]. 生态学杂志.

PEI Qian-qian1,2, ZHANG Tao2, YANG Gang2, ZHAO Feng2, SONG Chao2, ZHUANG Ping2*. Reproductive biology of Exopalaemon carinicauda in Yangtze River Estuary.[J]. cje.