| 南极沿海伯尔顿盐湖两种越冬浮游动物温度耐性的初步研究 |
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| 引用本文： | 王自磐.南极沿海伯尔顿盐湖两种越冬浮游动物温度耐性的初步研究[J].极地研究,1988,1(2):28-36. |
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| 作者姓名： | 王自磐 |
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| 作者单位： | 国家海洋局第二海洋研究所 杭州 |
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| 摘 要： | 本文报导了南极大陆沿海伯尔顿湖两种越冬浮游动物:双刺镰状水蚤和球栉水母的耐热和耐过冷能力的实验.结果表明,两种动物具有较强的温度耐性,其12小时LD_(50)的上、下限温度,雌性双刺镰状水蚤可在14.8℃和—10℃偏下,球栉水母可在13.1℃和—8℃偏下.它们忍受的温度范围大于其他一些南极沿岸海洋无脊椎动物的.这两种动物的耐温能力有明显的季节差异,表明动物具有较强的适应环境温度变化和生理调节能力,这可能是受环境温度自然驯化的结果.
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| 关 键 词： | 浮游动物 温度耐性 过冷 生理调节 自然驯化 |
PRIMARY STUDY ON TEMPERATURE TOLERANCE OF TWO OVERWINTER ZOOPLANKTON SPECIES IN AN ANTARCITC LITTORAL LAKE (BURTON LAKE) |
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| Wang Zipan.PRIMARY STUDY ON TEMPERATURE TOLERANCE OF TWO OVERWINTER ZOOPLANKTON SPECIES IN AN ANTARCITC LITTORAL LAKE (BURTON LAKE)[J].Chinese Journal of Polar Research,1988,1(2):28-36. |
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| Authors: | Wang Zipan |
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| Abstract: | Supercooling and thermal tolerance of two overwinter zooplankton species,
Drepanopus bispinosus and a calanoida copepod, Cydlppida sp. in an Antarcitc
littoral lake-Burton lake, were tested in both seasons. The results show
that female adults of D. bispinosus and Cydippida sp. have quite stronger
temperature tolerance. The upper thermal 12hrLD50 of female copepod and ctenophore is about 12℃ , and their supercooling 12hrLD50 is -8℃ and -10℃ respectively. The range of their temperature tolerance is wider than that of some other previously reported Antarctic marine invertebrates. The ability of animals in temperature tolerance evidently presented seasonal variation, and it suggests that the animals have good physiological regulation for adapting to enviromental temperature change. This may be resulted in naturel acclimatization in the lake. |
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| Keywords: | Zooplankton temperature tolerance physiological regulation supercooling acclimatization |
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