PHYLOGENY AND SPECIES DIFFERENTIATION OF ADRIANICHTHYDEIS IN INDONESIA.

印度尼西亚亚德里鱼的系统发育和物种分化。

基本信息

批准号：
04041052
负责人：
OKINO Tokio
金额：
$ 5.76万
依托单位：
Shinshu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

项目摘要

Our project was carried out for three years from 1991 to 1993 including the preliminary survey in Indonesia.Ricefishes and their relatives in Sulawesi were reported by Weber and de Beaufort (1922) and Aurich (1935). They reported 3 species of ricefishes genus Oryzias, and 3 species of adrianichthyids genera Adrianichthydeis and Xenopoecilus from Sulawesi Island, Indonesia. These fishes in Sulawesi are very important for the study of relationships and species differentiation of these groups that are endemic in Asia.Our project was consisted with phenological studies and limnological study. The purpose of the phenological studies were to make clear the species differentiation of adrianichthyids group from cytogenetic methods, and that of the limno logical study was to gain the information on the present state of their environment of these fishes group in Sulawesi Island.Owing to our project, we confermed 7 species of Oryzias and one species of Xenopoecilus in Sulawesi. They were O.nigrim … More as, O.orthognosus and X.oophorus from L. Poso, O.profundicola, O.matanensis and O.marmoratus from Malili pond, and O.celebensis and O.javanicus from the waters of Southern part of Sulawesi. Parti cularly, O.javanicus from the salt production ponds at Jenepont, the south end of Sulawesi, was the first record in this island.To analyze the population structure of genus Oryzias the cellulose acetate electrophoresis were carried out using five enzymes. As the results, we concluded that all fishes analyzed from L. Posos were in the same gene pool.Kariotype of four ricefishes from the Central Sulawesi were compared. As the results, we concluded that four ricefishes belonged in the members of the fused chromosome group and closely related kariotypically.Limnological survey was carried out in 7 lakes and 50 points of rivers in Sulawesi. Among them the lakes in North Sulawesi are meso- and eutrophic lake, and 3 tectoniclakes in Central Sulawesi were oligotrophic lake. L.Limboto and L. Tempe are shallow lake originated flood of rivers locating in low land, but the former is turbid, the latter is covered with dense aquatic weeds almost area.In this year we reported the results of our studies in 7th Pacific Sciences Inter-Congress and 64th Meeting of Zoological Society of Japan held in Okinawa. Less

我们的项目从1991年到1993年进行了三年，包括在印度尼西亚的初步调查。Weber和de Beaufort（1922年）和Aurich（1935年）报告了苏拉威西岛的稻鱼及其近缘种，他们报告了3种稻鱼属Oryzias，以及 3 种来自印度尼西亚苏拉威西岛的 Adrianichthydeis 和 Xenopoecilus 鱼。苏拉威西岛的鱼类对于研究亚洲特有鱼类的关系和物种分化非常重要。我们的项目由物候学研究和湖沼学研究组成。物候学研究的目的是弄清楚阿德里安鱼科的物种分化。细胞遗传学方法，湖泊学研究的目的是获得有关苏拉威西岛这些鱼类群的环境现状的信息。由于我们的项目，我们鉴定了 7 个物种苏拉威西岛的 Oryzias 和 Xenopoecilus 的一种，它们是来自 L. Poso 的 O.nigrim … More as、O.orthognosus 和 X.oophorus、来自马里利池塘的 O.profundicola、O.matanensis 和 O.marmoratus，以及 O.celebensis 和 O.celebensis。来自苏拉威西岛南部水域的 O.javanicus，特别是来自产盐池的 O.javanicus。苏拉威西岛南端的 Jenepont 是该岛的第一个记录。为了分析 Oryzias 的种群结构，我们使用五种酶进行了醋酸纤维素电泳。结果表明，所有来自 L. Posos 的鱼类都被分析。对来自中苏拉威西岛的四种稻鱼的核型进行了比较，结果表明，四种稻鱼属于融合染色体组的成员。密切相关的核典型。对苏拉威西的7个湖泊和50个河流进行了湖泊学调查，其中北苏拉威西的湖泊为中苏拉威西富营养湖，中苏拉威西的3个构造湖为贫营养湖L.Limboto和L。坦佩是位于低地的浅湖，起源于河流洪水，但前者浑浊，后者覆盖茂密。今年，我们在冲绳举行的第7届太平洋科学大会和第64届日本动物学会会议上报告了我们的研究结果。