浙江农业学报

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三门核电站周边海域叶绿素a及初级生产力时空分布

  

  1. (1 温州医科大学 生命科学学院 海洋科学系,浙江 温州 325035;2浙江省海洋水产养殖研究所,浙江 温州 325005)
  • 出版日期:2014-09-25 发布日期:2014-10-11

Spatial\|temporal distribution of chlorophyll\|a and primary productivity in the surrounding areas of Sanmen Bay Nuclear Power Station

  1. (1 Department of Marine Science, School of Life Science, Wenzhou Medical University, Wenzhou 325035, China; 2 Zhejiang Mariculture Research Institute, Wenzhou 325005, China)
  • Online:2014-09-25 Published:2014-10-11

摘要: 2012年2月(冬季)、5月(春季)、8月(夏季)和11月(秋季)在三门核电站周边海域(121°30′~122°0′E、29°0′~29°20′N)26个站点进行浮游植物、叶绿素a和初级生产力调查。结果表明,浮游植物、叶绿素a和初级生产力均具有明显的时空分布特征。三门湾核电站附近海域共有浮游植物4门51属114种,季节变化为夏季(79种)>春季(62种)>冬季(42种)>秋季(36种),种类数空间上从湾内向湾外有增加的趋势。叶绿素a平均含量为374 μg·L-1,季节表现为春季(653 μg·L-1)>夏季(487 μg·L-1)>秋季(204 μg·L-1)>冬季(152 μg·L-1),空间上有从湾内向湾外逐渐降低的趋势。初级生产力均值为117 μg C·(μg Chla)-1·h-1,季节变化为夏季[249 μg C·(μg Chla)-1·h-1]>秋季[077 μg C·(μg Chla)-1·h-1]>春季[023 μg C·(μg Chla)-1·h-1],空间上与叶绿素a的趋势相同,从湾内向湾外逐渐降低。

关键词: 三门湾, 叶绿素a, 初级生产力, 时空分布

Abstract: The phytoplankton community, chlorophyll\|a (Chla) and primary productivity (PP) of 26 sampling sites were investigated in the surrounding areas of Sanmen Nuclear Power Station (121°30′~122°0′E, 29°0′~29°20′N) in February(winter), June(spring), August(summer), and November(autumn), 2012, respectively. 114 species, belonging to 51 genera and 4 phylum, were identified in the research area. The number of species was summer(79)>spring(62)>winter(42)>autumn(36), and was enhanced from inside to outside of the bay in spatial level. The mean of Chla concentrations was 374 μg·L-1. The variety of Chla in temporal level was according to the following rules: spring(653 μg·L-1)>summer(487 μg·L-1)>autumn(204 μg·L-1)>winter(152 μg·L-1), but decreased from inside to outside of the bay in spatial level. The mean of PP was 117 μg C·(μg Chla)-1·h-1. The highest of PP was observed in summer [249 μg C(μg Chla)-1·h-1], while the lowest in spring[023 μg C·(μg Chla)-1·h-1]. The spatial distribution of PP was the same as Chla.

Key words: Sanmen Bay, chlorophyll\, a, primary productivity, spatial\, temporal distribution