| 不同规格拉萨裂腹鱼温度耐受性研究 |
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| 引用本文： | 何林强,王万良,曾本和,杨瑞斌,刘海平,曾小理,徐兆利,王建. 不同规格拉萨裂腹鱼温度耐受性研究[J]. 水生生物学报, 2020, 44(6): 1230-1238. DOI: 10.7541/2020.143 |
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| 作者姓名： | 何林强 王万良 曾本和 杨瑞斌 刘海平 曾小理 徐兆利 王建 |
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| 作者单位： | 1. 西藏自治区农牧科学院水产科学研究所;2. 华中农业大学水产学院;3. 西南大学动物科学学院 |
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| 摘 要： | 实验旨在探讨三种规格拉萨裂腹鱼(Schizothorax waltoni)的温度耐受能力。通过每4h升高或者降低1℃,其中升温或者降温1h,平衡3h,直到试验鱼全部死亡或水温降至0。结果表明:大规格[(100.93±13.12) g、(19.71±1.04) cm]、中规格[(15.11±5.03) g、(10.05±1.19) cm]和小规格[(1.37±0.32) g、(4.51±0.35) cm]极限最高温度分别是30℃、30℃和33℃;极限最低温度均为0,均能在冰水混合的水中生存;温度耐受幅分别是30℃、30℃和33℃;在不同温度条件下拉萨裂腹鱼呼吸频率不同,且不同规格拉萨裂腹鱼间呼吸频率存在着显著差异(P<0.05)。因此,在高海拔和温度变化幅度较大的区域均适合拉萨裂腹鱼规模化养殖培育,但在冬季人工养殖过程中,由于小规格拉萨裂腹鱼耐受能力差,应移入温室大棚中养殖,从而保证较高成活率和正常生长。
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| 关 键 词： | 拉萨裂腹鱼 极限温度 耐受性 呼吸频率 |
| 收稿时间： | 2019-06-04 |
THE STUDY ON THE TEMPERATURE TOLERANCE OF DIFFERENT SIZES OF SCHIZOTHORAX WALTONI |
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| Abstract: | To investigate the temperature tolerance of Schizothorax waltoni with 3 different size, the temperature was increased or decreased by 1℃ every four hours and then balance for 3 hours, until all fish died or the water temperature dropped to 0. The results showed that the highest temperature of large size [(100.93±13.12) g and (19.71±1.04) cm], medium size [(15.11±5.03) g and (10.05±1.19) cm], small size [(1.37±0.32) g and (4.51±0.35) cm] of Schizothorax waltoni were 30℃, 30℃ and 33℃ respectively and the lowest temperature was 0 for all 3 groups with all fish can survive. The temperature tolerance amplitude were 30℃, 30℃ and 33℃ respectively; the breathing rate of Schizothorax waltoni were different in the different temperatures, and the breathing rate of different sizes of Schizothorax waltoni were significantly different (P<0.05). Therefore, it is suitable for the large-scale breeding of Schizothorax waltoni in areas with high altitude and temperature variation and the small size of Schizothorax waltoni should be farmed in the greenhouses to guarantee the high survival rate and normal growth. |
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