| 摘要: |
| 对流沙湾叶绿素a含量和初级生产力周年调查结果表明, 流沙湾叶绿素a含量变化在0.09—25.35mg/m3之间, 平均2.91mg/m3。叶绿素a含量有明显的月变化, 各站位叶绿素a含量在3—5月份较低, 最高出现在8月份和11月份, 平均4.58mg/m3, 出现二个峰值。同一站位不同月份叶绿素a含量总体上差异显著(P<0.05)。流沙湾的初级生产力变化范围是6.89—1482.55mgC/(m2·d), 平均242.74mgC/(m2·d)。初级生产力不同月份存在着明显的差异, 其中, 11月份最高, 8月份和翌年1月份次之, 3—5月份初级生产力处于最低水平。流沙湾叶绿素a含量和初级生产力有明显的水平分布, 最高值出现在湾中央处的4号站和湾北部的5号站, 最低值出现在湾口西部的1号站和湾底南部的9号站, 各站位之间总体上差异显著(P<0.05)。 |
| 关键词: 流沙湾 叶绿素a 初级生产力 时空分布 |
| DOI：10.11693/hyhz201305027027 |
| 分类号: |
| 基金项目:广东省科技计划项目, 2011B031100012号, 2012A020602050号; 广东省海洋渔业科技推广专项, A201201I02号; 广东省自然科学基金项目, 10152408801000005号 |
附件 |
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| CHLOROPHYLL a AND PRIMARY PRODUCTION IN THE LIUSHA BAY IN GUANGDONG |
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YE Ning1,2, WANG Yan1,2, SHEN Yu-Chun1,2, LI Zai-Liang1,2
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1.Fisheries College, Guangdong Ocean University;2.Key Laboratory of Aquaculture in South China Sea for Aquatic Economic Animal of Guangdong Higher Education Institutes
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| Abstract: |
| A survey was conducted from March 2008 to February 2009 to determine chlorophyll a content and primary productivity in the Liusha Bay, Guangdong. Results show that the chlorophyll a content fluctuated between 0.09— 25.35mg/m3 in average of 2.91mg/m3 in a significant seasonality (P<0.05): low in March to May, and high August to November. The primary productivity ranged 6.89—1482.55mgC/(m2·d), average 242.74mgC/(m2·d), showing also a significant seasonal change: the maximum in November 2008, followed by those of August 2008 and January 2009, the two smaller peaks, and the minimum in March to May. In addition, the two parameters in the Liusha bay varied significantly in horizontal distribution among stations (P<0.05): site 4 located in the middle of the bay and site 5 in the north were with the top values, while site 1 in the west and site 9 in the south had the bottom values. |
| Key words: Liusha bay chlorophyll a primary productivity spatial and temporal distribution |
