ISSN:
1573-5117
Keywords:
tropical zooplankton
;
bioenergetics
;
assimilation efficiency
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Measurements of body mass, carbon content, respiration, growth, and egestion are combined in a model of secondary production by the tropical freshwater shrimp Caridina. The model is developed to permit its direct application to empirical data for abundances and size frequency distributions of field populations. Model calculations combined with population data for offshore Lake Victoria over a period of two years indicate that Caridina consume the equivalent of 2.2% of annual lake primary production. Present net annual secondary production by the shrimp is an order of magnitude greater than the present fishery yield of the lake. Detritus-fed experimental organisms evidently had assimilation efficiencies as low as 10% by model calculation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00031923
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