云南抚仙湖二种云南鳅的分化研究
文献类型：期刊论文
| 作者 | 杨君兴; 陈银瑞 |
| 刊名 | 动物学研究
 |
| 出版日期 | 1994 |
| 卷号 | 15期号:S1页码:52-57 |
| 关键词 | 抚仙湖 云南鳅属 物种分化 生物学特性 |
| 其他题名 | Differentitions of two Yunnanilus species in fuxian lake of Yunnan |
| 合作状况 | 其它 |
| 中文摘要 | 根据1988年11月至1993年12月间野外收集的材料和馆藏的标本,本文初步记述厂抚仙湖中侧纹云南鳅和褚氏云南鳅的物种分化在其形态特征、生活空间、食性、年龄和生长、繁殖等5方面的具体表达。研究结果表明,两种云南鳅在形态上的分化主要表现在体长/体高、头长/眼径、尾柄长/尾柄高、口位、须的长度、背鳍分枝鳍条数目等性状上。侧纹云南鳅主要生活于出、入湖的溪流及河口附近,以钩虾和摇蚊幼虫为主食,生长速度较快,绝对繁殖力较高。褚氏云南鳅主要生活于湖泊沿岸浅水区的水草丛中及其附近,以浮游动物为主食,生长速度较慢,绝对繁殖力较低。两种云南鳅具有卵子直径较小、相对繁殖力较高、种群中雌性明显多于雄性等共同特点。这些特点使种群能获得较高的繁殖潜力,与其在湖泊生态系统中面临较大的环境压力有关。 |
| 英文摘要 | Based on the materials collected from November, 1988 to December, 1993 and the deposited specimens, the present paper primarily deals with the interspecific differentiations between Yunnanilus pleurotaenia and Yunnanilus chui in Fuxian Lake, referring to their morphological characters, living spaces, diets, age and growth, breeding babits. The investigation reveals that the interspecific differentions in morphology of two Yunnanilus species appera mainly in SL/body depth, head length/eye diameter, length of caudal peduncle/ depth of caudal peduncle, mouth situation, length of maxillary barbel, number of branched dorsal fin rays. The loach Ynnanilus pleurotaenia lives mainly in the streams flowing into or out the lake as well as their outlets and inlets, feeding mainly on Gammarus sp. and chironomid larvae, having a higher growth rate and absolute fecundity than Yunnanilus chui. The loach Yunnanilus chui lives mainly in the vegetations of vascular hydrophytes occurring in the coastal area of the lake, feeding mainly on zooplanktons, having a lower growth rate and absolute fecundity than Y. pleurotaenia. Two Yunnanillus species share the following common features in breeding: eggs are fairly small, the relative fecundities very high and females greatly dominant in their populations. These features can ensuure that their populations have potentially high abilities in breeding. |
| 收录类别 | 其他 |
| 资助信息 | 国家自然科学基金 |
| 语种 | 中文 |
| 公开日期 | 2010-08-10 |
| 源URL | [http://159.226.149.42:8088/handle/152453/1263]  |
| 专题 | 昆明动物研究所_系统进化与生物地理学 |
| 作者单位 | 中国科学院昆明动物研究所,昆明650223 |
| 推荐引用方式 GB/T 7714 | 杨君兴,陈银瑞. 云南抚仙湖二种云南鳅的分化研究[J]. 动物学研究,1994,15(S1):52-57. |
| APA | 杨君兴,&陈银瑞.(1994).云南抚仙湖二种云南鳅的分化研究.动物学研究,15(S1),52-57. |
| MLA | 杨君兴,et al."云南抚仙湖二种云南鳅的分化研究".动物学研究 15.S1(1994):52-57. |
入库方式： OAI收割
来源：昆明动物研究所
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