| 江苏省东凌河口海水蟹苗种类组成及其淡水驯化初探↑（*） |
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| 引用本文： | 程家骅,凌建忠,王云龙,周荣康,张文初,许太伟,张殿来,杨桂林,陶建军.江苏省东凌河口海水蟹苗种类组成及其淡水驯化初探↑（*）[J].中国水产科学,1997,1(1):23-29. |
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| 作者姓名： | 程家骅 凌建忠 王云龙 周荣康 张文初 许太伟 张殿来 杨桂林 陶建军 |
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| 作者单位： | 中国水产科学研究院东海水产研究所，江苏省南通渔政管理站 |
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| 摘 要： | 本文对１９９５年６月１日至１５日江苏省如东县东凌河口船挑网采集的海水蟹苗大眼幼体作了连续观察，发现海水蟹苗主要为中华绒螯蟹、天津厚蟹和一小型蟹类三种，其平均体长分别为４８０ｍｍ、３８５ｍｍ、１６５ｍｍ。比较了三种大眼幼体头胸甲、尾部、胸足等部位的形态特征差异。中华绒螯蟹蟹苗出现的时间为６月８日至１３日，历时６天，以６月１１日比例最高，达６１％。同时，对海水蟹苗进行了淡水驯化试验，蟹苗变态率约为５０％，中华绒螯蟹蟹苗的存活率约为８０％，淡水驯化时间最长不得超过一周。
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| 关 键 词： | 东凌河口，海水蟹苗，种类组成，淡水驯化 |
| 修稿时间： | 2010/4/8 0:00:00 |
A PRELIMINARY RESEARCH ON SPEICES COMPOSTION AND DOMESTICATION ABOUT THE COASTAL MEGALOPA OF CRABS AT DONGLING RIVER MOUTH IN NORTH OF JIANGSU PROVINCE |
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| Cheng Jiahua,Ling Jianzhong,Wang Yunlong,Zhou Rongkang.A PRELIMINARY RESEARCH ON SPEICES COMPOSTION AND DOMESTICATION ABOUT THE COASTAL MEGALOPA OF CRABS AT DONGLING RIVER MOUTH IN NORTH OF JIANGSU PROVINCE[J].Journal of Fishery Sciences of China,1997,1(1):23-29. |
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| Authors: | Cheng Jiahua Ling Jianzhong Wang Yunlong Zhou Rongkang |
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| Abstract: | From Jun.1 to Jun.12,1995, we had continuously observed the coastal megalopa of crabs which collected by set net with binocular microscope from Dongling river mouth. We found that the main components of coastal megalopa of crabs are Eriocheir sinensis, Helie tientsinensis and a small size crab and distingushed them from their main morphological character as carapace, caudae and pereiopod. The average length is respectively as 4.80 mm, 3.85mm and 1.65mm. From Jun.8 to Jun.13, it lasted 6 days that megalopa of Eirocheir sinensis had appeared. The highest proportion of megalopa of Eirocheir sinensis is about 61% on Jun.11. We had also done the fresh waters domesticating experiment on coastal megalopa of crabs. The changing rate of megalopa is about 50% and survival rate of megalopa of Eirocheir sinensis is about 80%. The time of fresh water domestication is no more than one week. |
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| Keywords: | Dongling river mouth Coastal megalopa of crabs Speices compostion Fresh water domestication |
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