Effect of collection and acclimation period on grazing rates of limnetic zooplankton |
| |
Authors: | Patricia Chow-Fraser |
| |
Institution: | (1) Department of Zoology, University of Toronto, Erindale Campus, Mississauga, Ontario, L5L 1C6;(2) Present address: Department of Biology, Concordia University, 1455 de Maisonneuve Blvd. W., Montreal, Quebec, H3G 1M8 |
| |
Abstract: | Grazing rates of Daphnia sp. and Diaptomus oregonensis measured using an in situ method (Haney 1971) were compared with rates measured by collecting animals in vertical townets and placing them in experimental chambers either immediately or after a 24-h acclimation period. Experiments with acclimation yielded grazing rates of Daphnia that were statistically higher than in situ rates, whereas experiments conducted without acclimation yielded significantly lower rates. In situ grazing rates of Diaptomus were statistically higher than those for both townet techniques; experiments without an acclimation yielded higher rates than those for experiments with a 24-h acclimation period. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|