Herzig, A., R.S. Anderson & D.W. Mayhood. (1980). Production and population dynamics of Leptodiaptomus sicilis in a mountain lake in Alberta, Canada. Holarctic Ecology. 3(1):50-63, figs. 1-12, tabs. 1-5.

92090

Herzig, A., R.S. Anderson & D.W. Mayhood

1980

3(1):50-63, figs. 1-12, tabs. 1-5.

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Leptodiaptomus sicilis (S. A. Forbes 1882) in Pyramid Lake, Alberta,Canada, has only one main generation per year. A small summer generation probably does not survive.Adults maypersist for 7 to 12 months, andindividual copepods may live for up to 17 months.Retardationof the development of copepodid C 4 and C 5 seems to be food linked.The highpercentage of survivors (up to 97%) from the first egg pulse of the main generation, andthe low percentage of survivors (as low as 3%) from the second egg pulse, is likely due to the absence of cyclopoid adults and copepodids in spring, and to both cyclopoid predation and a poor food regime in summer. Production estimates by severalmethods gave closely comparable results. Mean daily production by L. sicilis is 0.29 mg dry weight m-, and the annualP/B ratio is 2.63.

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