Growth and production dynamics of Calanus glacialis in an arctic pelagic food web
Growth and production dynamics of Calanus glacialis in an arctic pelagic food web
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北极远洋食物网中冰川哲水藻的生长和生产动态
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
K. Tande
中科院分区：
文献类型：
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作者：
D. Slagstad;K. Tande
提出了一个草食性北极桡足类哲水蚤的生产模型。该模型结合了从能量平衡研究中获得的增长率数据和在北极生产期收集的人口结构数据。一个2年的生活史表明，该物种存在于浮游生物作为2个主要的年级，这一生活史模式应能减少产卵期和CIV至CV高脂沉积期食物限制的可能性。8月最高为0.16 g Cm ~（-2）d ~（-1）。平衡实验计算的PIB比率在7月期间介于0.03至0.05之间。敏感性分析的结果，以突出特别重要的生态方面，这个物种在北极环境。
A production model for the herbivorous arctic copepod Calanus glacialis is presented. The model combines data on growth rates obtained from energy balance studies with population structure data gathered during the arctic productive period. A 2 yr life cycle suggests that the species is present in the plankton as 2 main year classes, thus enabling it to utilize the short annual spring bloom during both spawning and the intensive growth period from CIV to CV This pattern of life cycle should reduce the probability of food limitation during spawning and during periods of high lipid deposition as from CIV to CV A tentative assessment of total annual production is calculated to 8.4 g C m-' with a maximum of 0.16 g C m-2 d-' during August. PIB ratios calculated from balance experiments ranged from 0.03 to 0.05 during July. Results from sensitivity analysis are presented in order to highlight especially important ecological aspects of this species in the arctic environment.