THE ENERGY ASSIMILATION EFFICIENCY OF EMPEROR PENGUINS, APTENODYTES FORSTERI, FED A DIET OF ANTARCTIC KRILL, EUPHAUSIA-SUPERBA

Authors
KIRKWOOD R ROBERTSON G
Citation
R. Kirkwood et G. Robertson, THE ENERGY ASSIMILATION EFFICIENCY OF EMPEROR PENGUINS, APTENODYTES FORSTERI, FED A DIET OF ANTARCTIC KRILL, EUPHAUSIA-SUPERBA, Physiological zoology, 70(1), 1997, pp. 27-32
Citations number
21
Categorie Soggetti
Zoology,Physiology
Journal title
Physiological zoology → ACNP
ISSN journal
0031935X
Volume
70
Issue
1
Year of publication
1997
Pages
27 - 32
Database
ISI
SICI code
0031-935X(1997)70:1<27:TEAEOE>2.0.ZU;2-6
Abstract
Captive emperor penguins in Antarctica hand-fed Antarctic krill assimi lated an average of 70.5% +/- 1.7% (n = 3) of the energy in the diet. Water intake estimated by tritiated water turnover was 9.4% +/- 2.4% l ess than that measured gravimetrically. Tritium took 1.5 h from inject ion to equilibrate with the penguins' body water pools.