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SYSTEMATICS OF POLYNOID POLYCHAETES WITH REFERENCE TO GLOBAL CRUSTAL MOVEMENTS

参考全球地壳运动的多毛类多毛类系统学

基本信息

批准号：
03640630
负责人：
MIURA Tomoyuki
金额：
$ 1.28万
依托单位：
KAGOSHIMA UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03640630/
关键词：
SYSTEMATICS POLYCHAETA POLYNOIDAE DEEP-SEA BIOGEOGRAPHY HYDROTHERMAL VENT CRUSTAL MOVEMENT COLD-SEEP NEW SPECIES

项目摘要

The polychaetous annelids of the family Polynoidae collected from world-wide hydrothermal vents and cold-seeps were studied. The collection was made by the Institute Francais de Recherche pour l'Exploitation de la Mer and Japan Marine Science and Technology Center. The sampling sites were : 1) White Lady site, North Fiji Basin, 2) Hine Hina and Vailili sites, Lau Basin, 3) Genesis and Totem sites, East Pacific Rise, 4) Snake Pit site, Mid-Atlantic Ridge, 5) Minami-Ensei Knoll, Izena Holl, and Iheya Ridge, Okinawa Trough, 6) Kaikata and Nikko Seamount, Izu-Ogasawara Ark System, 7) Hatsushima cold-seep site, Sagami Bay. The collection contained 13 species with a new subfamily, 3 new genera and 4 new species. Among them, only the species of the subfamily Branchipolynoinae were clearly divided in the geographical distribution. Branchipolynoe symmytilida distributes only in Atlantic waters, such as Gulf of Mexico and Mid-Atlantic Ridge. This species has large elytra and biramous parapodia with well-developed notopodia, and thus is thought to have primitive characters. Branchipolynoe seepensis distributes only in East Pacific areas, and Branchipolynoe pettiboneae occurs only in West Pacific areas. These two species have smaller erytra and subbiramous parapodia and thus are thought to have more advanced morphological characters. In the evolutionary process, the Pacific species group might be firstly divided from the stem species and then the two Pacific species may be divided each other. This process looks like well concordant with the geohistorical crustal movements, however we need more information on the animal community of the hydrothermal vents and cold-seeps of the world.

本文对采自世界各地热液喷口和冷泉的波利诺科多毛类环节动物进行了研究。这批藏品是由法国海洋开发研究所和日本海洋科学技术中心制作的。取样地点为：1）北斐济海盆的白色女士遗址，2）劳海盆的Hine Hina和Vailili遗址，3）东太平洋海隆的Genesis和Totem遗址，4）大西洋中脊的Snake Pit遗址，5）冲绳海槽的Minami-Ensei Knoll、Izena Holl和Iheya Ridge，6）伊豆-小笠原方舟系的Kaikata和尼科海山，7）相模湾的Hatsushima冷泉遗址。该标本包括13种，其中1个新亚科，3个新属，4个新种。其中，只有Branchipolynoinae亚科的种类在地理分布上划分清楚。该物种仅分布于墨西哥湾、大西洋中脊等大西洋沃茨。本种具有大的鞘翅和二分支的副足，具有发育良好的背足，因此被认为具有原始的特征。西太平洋的Branchipolynoeseepensis仅分布于东太平洋，而西太平洋的Branchipolynoepettiboneae仅分布于西太平洋。这两个物种有较小的erytra和subbiramous parapodia，因此被认为有更先进的形态特征。在进化过程中，茎种可能首先分化为太平洋种群，然后两个太平洋种可能相互分化。这一过程似乎与地史地壳运动相吻合，但我们需要更多关于世界热液喷口和冷泉的动物群落的信息。