温度对拟目乌贼胚胎发育及幼体的影响

应用生态学报

温度对拟目乌贼胚胎发育及幼体的影响

蒋霞敏^**,彭瑞冰,罗江,唐锋

(宁波大学海洋学院，浙江宁波 315211)

出版日期:2013-05-18 发布日期:2013-05-18

Effects of temperature on the embryonic development and larval growth of Sepia lycidas. 

JIANG Xia-min, PENG Rui-bing, LUO Jiang, TANG Feng

(College of Ocean, Ningbo University, Ningbo 315211, Zhejiang, China)

Online:2013-05-18 Published:2013-05-18

摘要/Abstract

摘要：

为确定拟目乌贼发育生长最佳温度条件，采用单因子试验研究了不同温度(15、18、21、24、27、30、33 ℃)对拟目乌贼胚胎发育及幼体生长的影响.结果表明：不同温度对拟目乌贼胚胎发育及幼体影响显著(P＜0.05).胚胎发育适宜温度为21～30 ℃，最适温度为24 ℃.最适温度下孵化率达(93.3±2.9)%，培育周期为(24.33±0.58) d，孵化周期为(6.00±1.00) d，卵黄囊完全吸收率为(96.4±3.1)%，初孵幼体体质量为(0.258±0.007) g.有效积温模型为N=284.42/(T-12.57).幼体生长适宜温度为21～30 ℃，最适温度为24～27 ℃.最适宜温度下幼体存活率达70.0%～73.3%，特定生长率为2.4%～3.8%.

Abstract: A singlefactor experiment was conducted to study the effects of different temperature (15, 18, 21, 24, 27, 30, and 33 ℃) on the embryonic development and larval growth of Sepia lycidas, aimed to search for the optimum temperature for the development and growth of S. lycidas. The results showed that temperature had significant effects on the embryonic development and larval growth of S. lycidas (P<0.05). The suitable temperature for hatching ranged from 21 ℃ to 30 ℃, and the optimum temperature was 24 ℃. At the optimum temperature, the hatching rate was (93.3±2.9) %, incubation period was (24.33±0.58) d, hatching period was (6.00±1.00) d, completely absorked rate of yolk sac was (96.4±3.1) %, and newly hatched larvae mass was (0.258±0.007) g. The effective accumulated temperature model was N=284.42/(T-12.57). The suitable temperature for the larval survival and growth ranged from 21 ℃ to 30 ℃, and the optimum temperature was from 24 ℃ to 27 ℃.At the optimum
temperature, the survival rate ranged from 70.0% to 73.3%, and the specific growth rate was from 2.4% to 3.8%.

蒋霞敏**,彭瑞冰,罗江,唐锋. 温度对拟目乌贼胚胎发育及幼体的影响[J]. 应用生态学报.

JIANG Xia-min, PENG Rui-bing, LUO Jiang, TANG Feng. Effects of temperature on the embryonic development and larval growth of Sepia lycidas. [J]. Chinese Journal of Applied Ecology.