北方地区池塘养殖日本沼虾体质量与体长的关系

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DOI：10.3969/j.issn.1004-6755.2025.05.009

关键词：日本沼虾（Macrobrachiumnipponense）；体质量；体长；回归方程；北方；池塘养殖中图分类号：S967.3 文献标志码：A 文章编号： 1004-6755（2025）05-0043-05

Abstract：In order to investigate the growth pattern of Macrobrachium nipponense in pond culture in northern China，on June 16th， 2024，897 Macrobrachium nipponense samples were randomly sampled from aquaculture ponds，including l6o brooding shrimp（body length range of 3.8～7.5cm ，aweight range of 0.83～6.43g ），and 737 non brooding shrimp（a body length range of 3.0～9.6cm， a weight range of 0.22～10.72g .The results showed that，the correlation curve between body weight and body length was very close for both brooding shrimp and non brooding shrimp ，the average body length and weight of non brooding shrimp were higher than those of brooding shrimp;from the perspective of body length range，the average body length of Macrobrachium nipponense（whether it was a brooding shrimp or a non brooding shrimp）increased with body weight ，and when the body weight reached 7.95g ， the body length began to decrease.

Key words： Macrobrachium nip ponense ; body weight; body length; regression equation; northern region；pond aquaculture

日本沼虾（Macrobrachiumnipponense），俗称青虾、河虾，具有生长快、抗病力强、口味鲜美、营养丰富和价格稳定等优点，深受广大消费者的喜爱，是我国重要的淡水经济虾类[1]。（剩余6062字）