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AN ENERGY BUDGET FOR A DEPOSIT‐FEEDING AMPHIPOD 1
Author(s) -
HARGRAVE BARRY T.
Publication year - 1971
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1971.16.1.0099
Subject(s) - hyalella azteca , amphipoda , excretory system , sediment , assimilation (phonology) , energy budget , respiration , biology , zoology , environmental science , ecology , environmental chemistry , chemistry , botany , anatomy , crustacean , paleontology , linguistics , philosophy
An energy budget, with the parameters determined independently, was constructed for Hyalella azteca (Amphipoda) feeding on surface sediment from Marion Lake. At 15C, adult amphipods ingested 0.0525 cal as sediment and microflora per hour. Egested sediment represented a loss of 0.043 cal/hr. Of the calories assimilated, 49% were respired, 36% were lost as soluble excretory products, and 15% were accumulated as growth, egg production, and moults. The assimilation efficiency (15%) is comparable to that calculated for Hyalelta from a previous study. Production respiration and production : assimilation ratios were 0.31 and 0.15.