热带西太平洋浮游纤毛虫的垂直分布  

VERTICAL DISTRIBUTION OF PLANKTONIC CILIATES IN TROPICAL WESTERN PACIFIC

作　　者：王超锋[1,2,3] 赵丽[1,2] 赵苑 李海波[1,2,3] 陈雪[1,2,3] 张珊[1,2] 张武昌[1,2] 肖天[1,2] 

机构地区：[1]中国科学院海洋研究所海洋生态与环境科学重点实验室,青岛266071 [2]青岛海洋科学与技术国家实验室海洋生态与环境科学功能实验室,青岛266071 [3]中国科学院大学,北京100049

出　　处：《海洋与湖沼》2016年第2期429-437,共9页Oceanologia Et Limnologia Sinica

基　　金：中国科学院战略性先导科技专项;XDA11030202.2号;XDA11030204号

摘　　要：于2014年12月至2015年1月在热带西太平洋沿台湾南部到雅浦海山一个断面和雅浦海山海区研究了浮游纤毛虫丰度和生物量的垂直分布。浮游纤毛虫丰度变化范围为0—635ind./L,生物量范围为0—1.53μg C/L,丰度和生物量高值分布于200m以浅,其中,砂壳纤毛虫丰度为0—45ind./L,占总纤毛虫丰度的比例在0—14.62%之间。浮游纤毛虫丰度垂直分布均呈现"双峰型"模式:在表层和叶绿素极大值层(DCM)出现高值。共鉴定出砂壳纤毛虫33属76种。雅浦海山海区优势种为纤弱细瓮虫、卢氏真铃虫、管状真铃虫、膨大波膜虫,西太平洋海区优势种为纤弱细瓮虫、海勒斯真铃虫、酒杯类管虫、尖锐号角虫。有些种类分布在100m以浅,有的种类分布在100m以深,说明砂壳纤毛虫在100m水深左右种类发生变化。We investigated the full-depth abundance and biomass of planktonic ciliates in the Yapu Seamount area and along a transect from south Taiwan to Yapu Seamount in Western Pacific from December 2014 to January 2015. Abundance and biomass ranged from 0 to 635 ind./L, and from 0 to 1.53μg C/L, respectively. High abundance and biomass were found in the upper 200 m. The abundance of tintinnid ranged from 0 to 45ind/L, taking 0—14.62% of the total ciliates abundance in all stations across all layers in 0—200m. The vertical distribution of planktonic ciliates abundance showed ＂bimodal-peak＂ pattern in this area. Ciliates abundance was high in the surface and the deep chlorophyll maximum（DCM） layers. In taxonomy, 76 tintinnid species of 33 genera were identified. The dominant species in the Yapu Seamount were Steenstrupiella gracilis, Eutintinnus lusus-undae, Eutintinnus tubulosus, and Undella turgida; and in the Western Pacific were Steenstrupiella gracilis, Eutintinnus haslae, Dadayiella ganymedes, and Salpingella acμminata. Some species occupied in waters shallower than 100 m and others in waters deeper than 100 m. Therefore, the depth 100 m was the border where tintinnid species composition changed.

关 键 词：浮游纤毛虫 丰度 生物量 垂直分布 雅浦海山 西太平洋 

分 类 号：Q958.8[生物学—动物学]