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Title: A preliminary survey on primary productivity measured by the 14C assimilation method in the KEEP area
Authors: Fuh-Kwo Shiah
Gwo-Ching Gong
Kon-Kee Liu
Contributors: 國立臺灣海洋大學:海洋環境化學與生態研究所
Keywords: Kuroshio
Marine Ecology
Southern East China Sea
Date: 1995-01
Issue Date: 2017-02-07T08:08:15Z
Abstract: ABSTRACT: Primary productivity (PP) at the four sampling stations III the KEEP (Kuroshio Edge Exchange Processes) area, which located on the southern East China Sea north of Taiwan, was measured by the 14C assimilation method from May 4 to May 10, 1994. Stations 1, 8 and 11 and 17 represented the coastal, the upwelling and the Kuroshio waters respectively. PP varied among stations and depths, ranging from < 11 to 134 mgC m-3 d- 1 with the highest and lowest values observed at stations 1 and 17 respectively. The euphotic zone integrated productivity (EIP) for stations. 1,8, 11 and 17 were 1901,418,1537 and 425 mgC m-2 d-I respectively. Higher PP and EIP values and chlorophyll a concentration observed at stations 1 and 11 might be explained by the high nitrate supply rates. Normalized productivity (pB) ranged from 0.6 to 10.9 mgC mgChl-1 h-I with higher values observed at stations 8 and 11. Both PP and pB decreased exponentially with depth at all sampling stations, indicating a possible effect of light exerted on pB. The EIP value derived from the in situ incubation (569 mgC m-2 d") was 36% higher than that of the on deck incubation. This might be due to the tilting of the in situ incubation array which allowed the in situ bottles to expose to higher light level.
Relation: 34(1)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40970
Appears in Collections:[海洋環境與生態研究所] 期刊論文

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