Efficiencies of ingestion and assimilation by an invertebrate predator using C and P dual isotope labeling
Open Access
- 1 November 1993
- journal article
- other
- Published by Wiley in Limnology and Oceanography
- Vol. 38 (7) , 1550-1554
- https://doi.org/10.4319/lo.1993.38.7.1550
Abstract
Daphnia rosea was uniformly labeled with both 14C and 33P, then offered as prey to Bythotrephes cederstroemi Schoedler, a nonindigenous predatory cladoceran which has become established in the Laurentian Great Lakes. Both C and P from the prey were ingested with equal efficiency (58–59%, SE = 2%) by Bythotrephes and retained with equal efficiency over the next 12 h. Feeding behavior by the predator involves a fastidious process of shredding and discard of exoskeletal material and selective ingestion of soft tissue. Most of the ingested matter is consequently digested; assimilation efficiency is 85% (SE = 2%).Keywords
This publication has 0 references indexed in Scilit: