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Crustacean Biogeography in Equatorial area of Southeast Asia

东南亚赤道地区甲壳动物生物地理学

基本信息

批准号：
11691172
负责人：
YAMAGUCHI Toshiyuki
金额：
$ 9.66万
依托单位：
Chiba University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11691172/
关键词：
Southeast Asia Crustacea Littoral Biogeography Barnacles Ostracods Shrimps Crabs 貝形虫類

项目摘要

This is the final year for field research on Crustacean Biogeography in Equatorial area of Southeast Asia. Yamaguchi, Wada, Tanaka, and Tsukagoshi had a field trip to Bali, Sulawesi, West Timor, Lombok, and Sumbawa Islands of Indonesia. In the Balanus amphitrite complex, B. amphitrite, B. kondakovi, B. reticulatus, B. variegatus, B. venustus, B. rhizophorae, B. zhujiangensis, and B. patelliformis were found in the area. The last three species, B. patelliformis, B. rhizophorae, and B. zhujiangensis have never been found except for those type localities, in our field trip we can find them and those biogeographic distributions are new to science. We could find many taxa of barnacles found in the Indo-West Pacific, however, Austrobalanus that has been only known in region of Oceania is found at the Papua New Guinea.Nine species of the family Ocypodidae have been recorded from Bali. Among them, one species of the genus Tmethypocoelis has been found to be an undescribed species. Eleven species of Ocypodidae have been recorded from northern Sulawesi. Among them, one species of the genus Ilyoplax has been found to be an undescribed species that was also collected in Luzon of the Philippines. This species is morphologically similar to two congeneric species of I. orientalis and I. tansuiensis, which are distributed in continental coast of the western Pacific. Molecular phylogenetic analysis has revealed that I. orientalis and I. tansuiensis are more related to each other than to the undescribed species.Twenty-four samples (13 from Bali Is. and 11 from Sulawesi Is.) were collected for study on Ostracoda. Six of them were for interstitial fauna. Twelve genera and twenty-two species were identified with soft parts. The two species of them must be undescribed species and the four of them are common to the species reported by Hartmann (1978) from Australia.

今年是东南亚赤道地区甲壳类生物地理学野外研究的最后一年。山口、和田、田中和筑实地考察了印度尼西亚的巴厘岛、苏拉威西岛、西帝汶、龙目岛和松巴瓦群岛。在文昌鱼复合体中，发现了两性杆菌、孔达科夫杆菌、网状杆菌、各种变种杆菌、脉管杆菌、根瘤杆菌、珠江双歧杆菌和斑腿双歧杆菌。在野外考察中发现了3个种，即B.patelliformis、B.Rhotophorae和B.zhujiangensis，这些生物地理分布在科学上是新的。我们可以在印度-西太平洋发现许多藤壶类群，但在巴布亚新几内亚发现了仅在大洋洲地区已知的Ostrobalanus。在巴厘岛已记录到Ocypodidae科的9种。其中甲壳藻属1种，为未记述种。苏拉威西岛北部已记录到Ocypodidae的11种。其中，在菲律宾吕宋岛也发现了一种未被描述的物种--Ilyopax属。本种在形态上类似于分布在西太平洋大陆海岸的两个同属的种I.orientalis和I.tansuiensis。分子系统发育分析表明，东方伊蚊和淡水伊蚊之间的亲缘关系大于与未描述种的亲缘关系。来自苏拉威西的11人是。)为研究介形类而采集的。其中6个为间隙动物群。共鉴定出软部位12属22种。其中两个种肯定是未描述的种，其中四个种是Hartmann(1978)从澳大利亚报道的种的常见种。