水泥池养殖条件下虎斑乌贼的生长特性  

Growth Characteristics of Sepia pharaonis under Pond-culture

作　　者：蒋霞敏[1] 罗江[1] 彭瑞冰[1] 唐锋[1] 高晓兰[1] 乐可鑫 孙志鹏[1] 

机构地区：[1]宁波大学海洋学院,浙江宁波315211

出　　处：《宁波大学学报（理工版）》2014年第2期1-6,共6页Journal of Ningbo University：Natural Science and Engineering Edition

基　　金：国家农业成果转化项目(2009GB2C220415);宁波市科技重点项目(2011C11002)

摘　　要：以体重、胴长、墨囊重和壳重4个指标变化情况，研究了水泥池养殖条件下虎斑乌贼（Sepia pharaonis）的生长特性.结果表明：体重呈指数增长，日均增重量（0.09~2.78 g）不断增加，瞬时增重率（11.86%~1.03%）呈下降趋势；胴长呈直线增长，日均增长量（0.03~0.13 cm）不断波动，瞬时增长率（4.99%~0.35%）呈下降趋势；墨囊重呈指数增长，日均增重量（0.01~0.09 g）呈上升趋势，瞬时增重率（11.95%~1.68%）呈下降趋势，墨囊指数3.06%~4.25%；壳重呈指数增长，日均增重量（0.01~0.13 g）呈上升趋势，瞬时增重率（10.73%~1.02%）呈下降趋势，壳指数为5.06%~7.65%.成活率在日龄0~45 d （90.69%~95.25%）和60~150 d （95.73%~98.89%）时平稳上升，而在日龄45~60 d（饵料转变过程中）下降至最低（50.01%）.体重和胴长、墨囊重、壳重之间均具有显著相关性.The growth characteristics of Sepia pharaonis under pond-culture are studied by observing the change of weight （W）, mantle length （ML）, weight of the Ink-sac （WIS）, and weight of the Cuttle-bone （WCB）. The results show that the W grows exponentially, the average daily weight gain （0.09-2.78 g） follows an upward trend, and the instantaneous growth rate （11.86%-1.03%） shows a downward trend. The ML grows linearly, the average daily length gain （0.03-0.13 cm） fluctuate constantly, and the instantaneous growth rate （4.99%-0.35%） is found with a downward trend. In comparison, the WIS also increases exponentially, the average daily weight gain （0.01-0.09 g） presents an upward trend, the instantaneous growth rate （11.95%-1.68%） indicates a downward trend, and the ink-sac index is 3.06%-4.25%. Finally, the WCB grows sharply, the average daily weight gain （0.01-0.13 g） also manifests an upward trend, the instantaneous growth rate （10.73%-1.02%） also follows a downward trend, the cuttle-bone index is 5.06%-7.65%. It is found that the survival rate increases steadily ranging 90.69%-95.25%within the age of 0-45 d, and 95.73%-98.89%within 60-150 d. Also noticed is that the survival rate declines to the lowest （50.01%） within the age of 45-60 d. Based on the findings, it concludes that there is significant correlation between the W and ML, WIS, WCB.

关 键 词：虎斑乌贼 墨囊 壳 生长 

分 类 号：S917.4[农业科学—水产科学]