Biomass and production of two Halimeda species in the Southwest New Caledonian lagoon
Biomass and production of two Halimeda species in the Southwest New Caledonian lagoon
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新喀里多尼亚西南部泻湖两种哈利梅达物种的生物量和生产
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
C. Garrigue
中科院分区：
文献类型：
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作者：
C. Garrigue
研究了新喀里多尼亚泻湖西南部松散沙上的两种藻类群落，它们主要由两个Caulerpa种群组成。在一年多的时间里，对两个站点的生物量、生长率和产量进行了测量。通过计算标记植株上的新节段和丢失节段的数量并称重，每月估计哈里米达的生物量和生长速度。通过比较两个连续的测量结果，每月对产量进行评估。测得的平均捕食率S f~(-1)·d~(-1)(节叶~(-1)天~(-1))和0。15 S f~(-1)d~(-1)。以有机碳为单位的产量分别为3.79gm-2y-1和3.37gm-2y-1。迪斯科种群的产量受季节变化的影响。
Two algal communities on unconsolidated sand, dominated by two Caulerpa populations, were studied in the southwestern New Caledonian lagoon. Biomass, growth rates and production were measured at two stations over one year. Biomass and growth rate of Halimeda were estimated monthly by counting the number of new and lost segments on tagged plants and by weighing them. Production was assessed monthly by comparing two successive measurements. The average rates measured were 0.60 s f-1 d-1 (segment frond-1 day-1 ) for Halimeda incrassata and 0. 15 s f-1 d-1 for H. discoidea. Production in terms of organic carbon amounted to 3.79 g m-2 y-1 for H. incrassata and 3.37 g m-2 y-1 for H. discoidea. The production of H. discoidea population is subject to seasonal variations.