Diet and respiration of the small planktonic marine copepod Oithona nana
Diet and respiration of the small planktonic marine copepod Oithona nana
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DOI：
10.1007/bf00397192
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发表时间：
1982-02
期刊：
影响因子：
2.4
通讯作者：
R. Lampitt;J. Gamble
中科院分区：
文献类型：
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作者：
R. Lampitt;J. Gamble
本文报道了小盾壳Oithona nana(Giesbr.)对各种浮游植物和浮游动物的食物种类进行了描述。食物种类被分成三个大小类别，1977年在苏格兰海湖特纳伊湖测量了它们的季节性丰度。得出了各大小类在海洋中摄食率的季节变化。呼吸速率的季节变化。测量了NaNA，并计算了估计为食用的食物材料的6%至40%的代谢需求。O.Nana与其他常见的桡足类动物的不同之处在于具有广泛的食物颗粒谱和低代谢率。有人建议，这些适应构成了战略，其中O。南美的人口水平全年保持不变。
The functional responses ofOithona nana(Giesbr.) to various phytoplankton and zooplankton food species are described. The food species were divided into three size categories, the seasonal abundances of which were measured in Loch Turnaig, a Scottish sea loch in 1977. The seasonal variations in feeding rates in the sea for each size class were derived. The seasonal variation in respiration rate ofO. nanawas measured, and metabolic requirements were claculated as between 6 and 40% of the food material estimated as being eaten.O. nanadiffers from other common copepods in having a wide food-particle size spectrum and a low metabolic rate. It is suggested that these adaptations constitute the strategy wherebyO. nanamaintains its population levels throughout the year.