The effect of lake trophic status on daily P/B of Bosmina longirostris [zooplankton, plankton]

The daily P/B of three size classes of Bosmina longirostris (O. F. Müller) are examined in relation to temperature and food conditions in six different environments. The effect of temperature on P/B is highly significant, being identical or nearly so in all of the lakes as shown by regression analys...

Full description

Saved in:
Bibliographic Details
Published in:Oikos 1979, Vol.33 (1), p.64-68
Main Authors: Janicki, J, DeCosta, J. (West Virginia Univ., Morgantown (USA). Biology Dept.)
Format: Article
Language:English
Subjects:
Age structure
Chlorophylls
Crustaceans
Dams
Fall lines
Food availability
Plankton
Regression analysis
Temperature dependence
Zooplankton
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The daily P/B of three size classes of Bosmina longirostris (O. F. Müller) are examined in relation to temperature and food conditions in six different environments. The effect of temperature on P/B is highly significant, being identical or nearly so in all of the lakes as shown by regression analysis. The intercepts of the regressions are positively correlated with the mean chlorophyll concentrations during the growing season of the six environments. This demonstrates that at the same temperature the daily P/B of Bosnima will be dependent upon the amount of food available. /// Зависимость суточного отношения P/B у 3-х размерных классов Bosmina longirostris (O.F.Miller) в зависнмости от температуры и запаса пищи исследовали в 6 различных местообитаниях. Влияние температуры на P/B высоко достоверно и почти индентично во всех озерах, как показал анализ регрессии. Показатели регрессий положительно коррелировали со средней концентрацией хлорофилла в течение вегетационного сезона в 6 местообитаниях. Это показывает, что при одлинаковых температурах суточное отношение P/B у Bosmina зависит от количества доступной пищи.
ISSN:0030-1299
1600-0706
DOI:10.2307/3544512