Uptake of dissolved organic carbon (DOC) by Daphnia pulex

Authors
Speas, DW Duffy, WG
Citation
Dw. Speas et Wg. Duffy, Uptake of dissolved organic carbon (DOC) by Daphnia pulex, J FRESHW EC, 13(4), 1998, pp. 457-463
Citations number
35
Categorie Soggetti
Aquatic Sciences
Journal title
JOURNAL OF FRESHWATER ECOLOGY
ISSN journal
02705060 → ACNP
Volume
13
Issue
4
Year of publication
1998
Pages
457 - 463
Database
ISI
SICI code
0270-5060(199812)13:4<457:UODOC(>2.0.ZU;2-F
Abstract
We investigated uptake of dissolved organic carbon (DOC) by Daphnia pulex b y exposing individuals to radiolabeled DOG. Daphnids exposed to (DOC)-C-14 were more radioactive than either control (anesthetized) or unexposed daphn ids (P=0.0001), indicating direct uptake of DOG. Waste product radioacitvit y was greater than that of exposed daphnids, suggesting that assimilation o f DOC is probably low.