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首页> 外文期刊>Marine ecology >Abundance, Biomass, C- and N-Content of Flaccisagitta enflata and Mesosagitta minima (Chaetognatha)
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Abundance, Biomass, C- and N-Content of Flaccisagitta enflata and Mesosagitta minima (Chaetognatha)

机译：Flaccisagitta enflata和Mesosagitta minima（Chaetognatha）的丰度，生物量，C和N含量

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摘要

The annual variability in abundance and biomass of Flaccisagitta enflata (Grassi, 1881) and Mesosagitta minima (Grassi, 1881), along with the C- and N-content of their different maturity stages, were investigated in the South Adriatic Sea on a weekly basis throughout 1996. Increases in abundance and biomass of F. enflata [maximum 554 indiv. · (10 m~3)~(-1) and 16.3 mg C · (10 m~3)~(-1)] and M. minima [maximum 336 indiv. · (10 m~3)~(-1) and 3.1 mg C · (10 m~3)~(-1)] were found in summer and autumn, a time of intense reproduction for these species. Mean carbon content (as a percentage of dry weight) varied from 30.41 to 40.39% among maturity stages for F. enflata, and from 27.73 to 39.31% for M. minima. Nitrogen contents of both species were ～3 to 3.5 times less than carbon contents and varied less. Accurate estimates of chaetognath biomass as carbon should be based on the separate contribution of each maturity stage present in the total population.
机译：每周在南亚得里亚海每周调查一次Flaccisagitta enflata（Grassi，1881）和Mesosagitta minima（Grassi，1881）的丰度和生物量的年度变化以及不同成熟阶段的C和N含量。整个1996年。浮萍的丰度和生物量的增加[最大554个个体。 ·（10 m〜3）〜（-1）和16.3 mg C·（10 m〜3）〜（-1）]和M. minima [最大336个个体。 ·在夏季和秋季发现了（10 m〜3）〜（-1）和3.1 mg C·（10 m〜3）〜（-1）]，这是这些物种繁殖旺盛的时期。在整个成熟阶段，对于连环连冠镰刀菌，平均碳含量（以干重的百分比计）从30.41％到40.39％不等，而极小分枝杆菌的平均碳含量从27.73％到39.31％不等。两种氮素含量均比碳素含量低约3至3.5倍，且变化较小。菱角藻生物量作为碳的准确估计应基于总种群中每个成熟阶段的单独贡献。

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