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Title: Grazing Pressure by Ciliates on the Nanoflagellate Community in a Subtropical Pelagic Continental Shelf Ecosystem: Small Ciliates (of < 45 μm) Are Major Consumers of the Nanoflagellate Community
Authors: Kuo-Ping Chiang
Jun-Yu Chen
An-Yi Tsai
Gwo-Ching Gong
Contributors: 國立臺灣海洋大學:海洋環境化學與生態研究所
Keywords: Ingestion rate
Fluorescently labeled beads
Southern East China Sea
Date: 2012-12
Issue Date: 2017-02-10T06:00:59Z
Publisher:  Zoological studies
Abstract: Abstract: Trophic relations between nanoflagellates and ciliates in the southern East China Sea (ECS) were studied along a crossshelf transect in Aug. 2010. Short-term experiments with 4-μm fluorescently labeled beads (FLBs) were used to estimate ingestion rates of the ciliate community at 6 stations. There were 3 zones along the transect: inner-shelf, mid-shelf, and upwelling zones. At all sites, ciliates of &lt; 45 μm in equivalent spherical diameter (ESD), including Strombidium spp., Strobilidium spp., Laboea spp., Tontonia spp., and tintinnids, were the most abundant group (79%-95%) of the ciliate community. Strombidium spp. ingestion rates ranged 59- 374 flagellates/ciliate/d, Strobilidium spp. ranged 26-268 flagellates/ciliate/d, Laboea spp. and Tontonia spp. ranged 18-289 flagellates/ciliate/d, and tintinnids ranged 58-249 flagellates/ciliate/d. Ciliate of &lt; 45 μm in ESD were the most important nanoplankton grazers, consuming nearly 100% of nanoflagellate production in innershelf and 43% in offshore oceanic waters. In summer, ciliates are one of the main trophic level consumers of nanoflagellates, especially in inner-shelf waters.
Relation: 51(8)
Appears in Collections:[Institute of Marine Environment and Ecology] Periodical Articles

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