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引用本文:刘俊英,郑绵平,罗健.西藏拉果错卤虫─Ⅰ.生物学特征.湖泊科学,1998,10(2):92-96. DOI:10.18307/1998.0215
Liu Zunying,Zheng Mianping,Luo Jian.A Study of Artemia in Lagkor Co,Tibet,I:Biological Feature. J. Lake Sci.1998,10(2):92-96. DOI:10.18307/1998.0215
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西藏拉果错卤虫─Ⅰ.生物学特征
刘俊英1, 郑绵平2, 罗健2
1.中国地质科学院盐湖资源与环境开发研究实验室, 中国地质科学院地质研究所, 北京 100037;2.中国地质科学院盐湖资源与环境开发研究实验室, 中国地质科学院矿床地质研究所, 北京 100037
摘要:
西藏拉果错位于阿里高原南部,湖面海拔4470m,水化学类型属于弱度碳酸盐亚型.湖水盐度为5.5%-6.5%.湖区属于高原亚寒带干旱区.拉果错每年12月至翌年3月为湖水冰冻期,4月下旬-5月初卤虫冬卵大量孵化.5—9月为卤虫早繁衍期.9月底-10月大量产生休眠卤虫卵,卤虫卵主要分布于湖东北部和西北部.卤虫和卤虫卵呈紫红色;虫卵属深色卵壳.卤虫干卵径264.5μm.卤虫克卵量约12万粒.无节幼体长607.7μm,成虫体长0.7-1.2cm.与其它13个国内外卤虫品系比较,为较大型卤虫品系.
关键词:  西藏拉果错  卤虫  生物学特征
DOI:10.18307/1998.0215
分类号:
基金项目:原地质矿产部盐湖资源与环境开放研究实验室资助;青藏高原盐湖潜力研究资助
A Study of Artemia in Lagkor Co,Tibet,I:Biological Feature
Liu Zunying1, Zheng Mianping2, Luo Jian2
1.Open Laboratory of Saline Lake Resources and Environment, Chinese Academy of Geological Sciences, Beijing 100037;2.Institure of Geology, Chinese Academy of Geological Sciences, Beijing 100037
Abstract:
Lagkor Co is a saline lake located in the subfrigid—plateau arid zone on the Ali Plateau. Tibet.at 89°02-89°12 E and 31°59-32°04 N.with an elevation of 4470m above sea 1eve1. The lake water belongs hydrochemically to the weak carbonate sub—typic and its salinity is 5.5-6.5. The lake water is frozen from December to M arch of the next year.W inter eggs of brine shrimp are hatched mostly from late April to the beginning of June.The brine shrimps are reproduced from M ay to September. Dormant eggs of brine shimp are produced abundatly from late September to October,Eggs of Artemia are distributed chiefly in the northeastern and northwestern parts of the lake. The brine shrimp and eggs of Artemia of the Lagkor Co in Tibet are purplish red.and egg of Amemia belongs to the dark colored shell type.The diameter of the dry Aretemia egg is 264.5"m. The number of eggs per gram is about 120000. The length of nauplii is 607.7Ⅲn and that of adult brine shrimp 0.7-1.2cm. Com pared with other 13 brine shrim p strains at hom e and abroad·the Artemia of Lagkor Co belongs to the larger type of Artemia strain.
Key words:  Lagkor Co(Tibet)  Artemia  biological feature
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