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| 贵州省青菜河水库坝下细肢新米虾（Neocaridina gracilipoda）的全长-体重关系研究 |
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张书海1, 何浩宇1, 王芳2, , 晏大东1, 项涛3, 居涛4, 石磊5, 甘雷1, 王桢璐1, 张木子1, 邵俭1, 姜海波1, 安苗1, 董响红1
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1.贵州大学动物科学学院高原山地动物遗传育种与繁殖教育部重点实验室;2.团风县和谐路北侧城东学校;3.图卢兹第三大学（UPS）进化与生物多样性实验室;4.广西海洋科学院，广西科学院;5.云南大学生态与环境学院，高原湖泊生态与治理研究院
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| 摘要: |
| 细肢新米虾（Neocaridina gracilipoda）是我国常见淡水虾类之一，在水域生态系统中起着重要作用（如在物质循环和能量流动中起链接作用），但有关其基础生物学方面的研究目前却鲜见报道。有鉴于此，我们于2022年秋季在赤水河流域青菜河水库坝下（106°07′52″E，27°36′12″N）采集细肢新米虾490尾，通过对样本全长与体重的测定，以期掌握此虾的全长和体重分布以及全长-体重关系。结果发现，青菜河水库坝下细肢新米虾：（1）全长介于10.60~32.13 mm（19.67 ± 2.54 mm）之间，优势全长集中在16.50~22.50 mm（n = 390，占总丰度的79.59%）；（2）体重介于0.01~0.44 g（0.11 ± 0.04 g）之间，优势体重集中在0.05~0.15 g（n = 415，占总丰度的84.69%）；（3）全长-体重的关系为：W = 4 × 10?5L2.66 (R2 = 0.78，n = 490)，b值（b = 2.66）与3存在显著性差异（P < 0.05），即表明青菜河水库坝下细肢新米虾种群呈负异速生长。 |
| 关键词: 细肢新米虾 青菜河水库坝下 全长-体重关系 生长式型 |
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| 基金项目:仁怀市林业局项目(H2022343)；贵州大学博士基金(贵大人基合字[2021]65号)。 |
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| Studies on the total length-weight relationship of Neocaridina gracilipoda under the Qingcaihe Reservoir Dam in Guizhou province |
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zhangshuhai, ,项涛,张木子,anmiao,董响红
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Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountainous Region, Ministry of Education, College of Animal Science, Guizhou University, Guiyang, 550025, China
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| Abstract: |
| Studies on the basic biology of Neocaridina gracilipoda were seldom reported even though it is one of the common freshwater shrimps in China and plays an important role in aquatic ecosystems (e.g. as a chain in the circulation of matter and the flow of energy). Aiming to obtain this species’ total length (L) and weight (W) distributions as well as L-W relationship, we collected 490 individuals under the Qingcaihe Reservoir Dam (106°07′52″E, 27°36′12″N) at the autumn of 2022 and measured the samples’ L and W. The results showed that: (1) L range was 10.60–32.13 mm (19.67 ± 2.54 mm), while the dominant L range was 16.50–22.50 mm (n = 390, accounting for 79.56% of the total); (2) W range was 0.01–0.44 g (0.11 ± 0.04 g), while the dominant W range was 0.05–0.15 mm (n = 415, 84.69% of the total); (3) L-W relationship was expressed in the equation W = 4 × 10?5L2.66 (R2 = 0.78, n = 490) as well as there was a significant difference (P < 0.05) between the value of b (b = 2.66) and 3, which meant that this species under the Qingcaihe Reservoir Dam exhibited negative heterogeneous growth. |
| Key words: Neocaridina gracilipoda Under the Qingcaihe Reservoir Dam Total length-weight relationship Growth pattern |
