文章摘要
李明云.池养脊尾白虾的繁殖、生长及其最大持续轮捕量的初步探讨[J].水产学报,1994,18(2):85~92
池养脊尾白虾的繁殖、生长及其最大持续轮捕量的初步探讨
AN APPROACH TO THE REPRODUCTION AND GROWTH OF SHRIMP EXOPELAEMON CARINICANDA CULTURED IN EARTHEN PONDS WITH REFERENCE TO ITS MAXIMUM SUSTAINING YIELD ON CATCH ROTATION
投稿时间:1998-07-07  修订日期:1993-01-01
DOI:
中文关键词: 脊尾白虾  池塘养殖  繁殖  生长  最大持续轮捕量
英文关键词: Exopelaemon carinicanda  pond culture  reproduction  growth  maximum sustaining yield on catch rotation
基金项目:
作者单位
李明云 浙江水产学院宁波分院, 315010 
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中文摘要:
      池养脊尾白虾经过3个月生长可达性成熟,抱卵亲虾占总虾数比例为3.84%-16.71%,相对抱卵量平均值为512.72粒/克体重.本试验中池养脊尾白虾的体长、体重与月龄关系可用vonBertalanffy生长方程描述.在目前的轮捕条件下,3月龄的个体可供渔具选择,年总死亡率φ=0.6270,轮捕死亡率E=0.2744,自然死亡率D=0.3526.若把首次轮捕月龄从3月龄提高到4月龄,轮捕强度控制在F=1.40,则产量可以比原来提高48.38%左右,且产量也能持续下去.
英文摘要:
      The reproduction and growth of Exopelaemon carinleanda(Holthuis)cultUred in earthen ponds with reference tO its maximum sustaining yield oncatch rotation have been conducted. The shrimp can reach first majority after 3months of culture. The percentage of berried females against to total number ofshrimp was 3.84-16.71%. The mean relative fecundity was 512.70 eggs/g. Therelationship between the age (t,month)and the body length (L,cm)ean be expressed by th6 equation Lt = 10. 54[1 - e-0.1412(t+0.54)]. The weight (W,g)-age (t,month)celationship can be described as Wt = 18 .30[1 - e-0.1412(t+054)]8. The total mortality of E. carinfeande for pond cultUre was calculated tO be 0.6270(includingnacreal mortality of 0.3526 and catehing mortality 0.2744). At present the ageclass ila the harvest is mainly three-month old. In such a case it would be difficulttO maintain the maximum sustaining yield. If the oatehable age class can be shiftto four-mom,h old and the fishing effort is controlled tO 1.40, 48.38N merementin acal yield might be expected and the primary relative abundance of the reproduotlye population can be maintained in a stable state.
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