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MCR LTER: Coral Reef: Demersal Zooplankton Composition and Abundance

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DataONE2016-03-16 更新2024-06-27 收录
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This data package contains demersal zooplankton abundance and taxonomic composition measured at 3 stations on the north shore of Moorea, French Polynesia: Forereef, Backreef and Fringing Reef from 2005 to 2010. Demersal zooplankton emerging from sand or rubble substrates on the reef during the night were captured in 8 inverted funnel traps placed on the substrate in the late afternoon and retrieved the following morning. Traps were made of 200 μm mesh netting with the opening to the cod end located 18 cm above the bottom. Four traps, each covering 0.0615 m2 of substrate, were combined to obtain one sample for counting. The table reports means of 2 replicates each containing 4 combined traps. Traps placed over sand were pushed into the substrate. However, traps over rubble had numerous gaps along their bases allowing some contamination from the water column. Data are expressed as number of animals emerging per square meter of bottom.

本数据包涵盖法属波利尼西亚莫雷阿岛北岸3个站位(前礁、礁后及岸礁)2005年至2010年的底栖浮游动物(demersal zooplankton)丰度与分类组成数据。夜间从礁体沙质或碎石底质中逸出的底栖浮游动物,于傍晚时分在底质表面布设8个倒置漏斗式捕集器,次日清晨完成回收。该捕集器采用孔径200μm的网布制作,其集样囊开口距底质表面18厘米。每4个各覆盖0.0615平方米底质的捕集器合并为1个用于计数的样本。本表格报告了2组重复样本的均值,每组重复样本包含4组合并后的捕集器样本。放置于沙质底质的捕集器会被嵌入底质中,而碎石底质上的捕集器基部存在大量缝隙,会引入部分水柱生物造成样本污染。数据以每平方米底质中逸出的动物数量表示。

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2016-03-16
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