Molting rates and cohort development of Calanus finmarchicus and C. glacialis in the sea off southwest Nova Scotia
Molting rates and cohort development of Calanus finmarchicus and C. glacialis in the sea off southwest Nova Scotia
复制标题
新斯科舍省西南部海域中的Finmarchicus和C. glacialis的蜕皮率和群体发育
DOI：
--
复制
发表时间：
1985
期刊：
影响因子：
--
通讯作者：
J. Koslow
中科院分区：
文献类型：
--
作者：
J. Runge;I. McLAREN;C. Corkett;R. Bohrer;J. Koslow
1982年6月，在一次为期8天的巡航中，在新斯科舍省西南部附近的站点采集了水蚤的物种。一个简单的模型，使用船上主要的肋足石阶段的蜕皮速率的测量，准确地预测了巡航开始和结束时横断面沿线站点发生的队列结构的变化。根据经滞育的冰盖隐翅虫的蜕皮率倒数计算得到的CIII和CIV两个阶段的总历期与实验室饲养实验所得的发育时间吻合较好。我们得出的结论是，我们的蜕皮率测量准确地反映了自然界的过程。这种方法对分析桡足类种群的动态和产量是有用的。
Species of Calanus were sampled at stations off southwest Nova Scotia during an 8-d cruise in June, 1982. A simple model using shipboard measurement of molting rates of predominant copepodite stages accurately predicted the changes in cohort structure that occurred at stations along a transect at the beginning and end of the cruise. The combined durations of C. finmarchicus (Gunnerus) stages CIII and CIV, calculated from the inverses of molting rates corrected for presence of diapausing C. glacialis Jaschnov, corresponded well with development times based on laboratory rearing experiments. We conclude that our molting rate measurements accurately reflected processes in nature. This methodology is useful for analyzing the dynamics and production of copepod populations.