南海北部及台湾海峡夏季自养与异养区域的分布*

doi:10.11978/j.issn.1009-5470.2014.04.008

热带海洋学报 ›› 2014, Vol. 33 ›› Issue (4): 61-68.doi: 10.11978/j.issn.1009-5470.2014.04.008cstr: 32234.14.j.issn.1009-5470.2014.04.008

所属专题：台湾海峡专题

南海北部及台湾海峡夏季自养与异养区域的分布^*

王娜, 林伟, 陈炳章, 黄邦钦

福建省海陆界面生态环境重点实验室、滨海湿地生态系统教育部重点实验室, 厦门大学, 福建厦门 361102

收稿日期:2013-05-29 修回日期:2014-01-07 出版日期:2014-08-11 发布日期:2014-08-11
作者简介:王娜(1989~), 女, 甘肃省平凉市人, 硕士, 主要从事海洋浮游生物群落呼吸研究。E-mail: wna1989.happy@163.com
*感谢厦门大学胡建宇教授、朱佳和孙振宇工程师提供温盐数据，谢聿原提供以14C方法测得的初级生产力数据，王磊提供叶绿素a数据，黄旭光给予有益建议.
基金资助:
厦门大学基础创新科研基金(2011121007、2012121058); 中国科学院南海海洋研究所热带海洋环境国家重点实验室开放课题(LTO1103); 海洋公益性行业科研专项经费项目(201105021-03)

Metabolic states of the Taiwan Strait and the northern South China Sea in summer 2012

WANG Na, LIN Wei, CHEN Bing-zhang, HUANG Bang-qin

Fujian Provincial Key Laboratory for Coastal Ecology and Environment Studies and Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystem, Xiamen University, Xiamen 361102, China

Received:2013-05-29 Revised:2014-01-07 Online:2014-08-11 Published:2014-08-11
Contact: 陈炳章。Email: bzchen2011@xmu.edu.cn

摘要/Abstract

摘要：

采用黑白瓶方法, 在2012年夏季测定了台湾海峡及南海北部16个站位群落总的初级生产力(gross primary production, GPP)和群落呼吸(community respiration, CR), 总的初级生产力GPP水柱积分平均值为106.6±7.51mmol O₂ m^-2·d^-1(mean±SE, 以下同), 群落呼吸CR平均为131.1±5.95mmol O₂ m^-2·d^-1, 净群落生产力(net community production, NPP)变化范围为-179.0~377.6mmol O₂ m^-2·d^-1(中值为-40.4mmol O₂ m^-2·d^-1)。受上升流的影响, 琼东海域呈现明显的自养状态。在珠江口, 由于珠江冲淡水的流入, 该区域也呈现自养状态。相反, 台湾海峡近岸以及粤东近岸均为异养区域。由此可见, 异养区域的群落呼吸并不是完全由本地初级生产力决定, 有机碳在空间上的输送对海洋浮游生物群落新陈代谢的影响可能极为重要。

关键词: 黑白瓶法, 群落呼吸, 自养, 异养

Abstract:

We investigated the metabolic states of plankton communities in the Taiwan Strait and the northern South China Sea by measuring gross primary productivity (GPP), community respiration (CR) and bacterial production (BP) at 16 stations in these areas. GPP averaged 106.6 mmol O₂ m^-2·d^-1 with a standard error of 7.51 mmol O₂ m^-2·d^-1. CR averaged 131.1 mmol O₂ m^-2·d^-1 with a standard error of 5.95 mmol O₂ m^-2·d^-1. Net community productivity varied from -179.0 to 377.6 mmol O₂ m^-2·d^-1with a median value of -40.4 mmol O₂ m^-2·d^-1. Our results showed that the area affected by Qiongdong upwelling was autotrophic. In the areas affected by the Pearl River discharge, the plankton community was also autotrophic. By contrast, other areas including the Taiwan Strait nearshore waters and the South China Sea open waters were heterotrophic. Therefore, community respiration was not entirely determined by the local primary productivity in the study areas. Our results suggest that the spatial transport of organic carbon plays an important role in determining the metabolic state of the plankton community.

Key words: light and dark bottle method, community respiration, metabolic state

中图分类号:

Q178.53

王娜, 林伟, 陈炳章, 黄邦钦. 南海北部及台湾海峡夏季自养与异养区域的分布^*[J]. 热带海洋学报, 2014, 33(4): 61-68.

WANG Na, LIN Wei, CHEN Bing-zhang, HUANG Bang-qin. Metabolic states of the Taiwan Strait and the northern South China Sea in summer 2012[J]. Journal of Tropical Oceanography, 2014, 33(4): 61-68.

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南海北部及台湾海峡夏季自养与异养区域的分布^*

Metabolic states of the Taiwan Strait and the northern South China Sea in summer 2012

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