Co-existence of two freshwater copepods in lakes through size divergence and diet partitioning
We examined the vertical and horizontal distribution patterns of Diaptomus minutus Lilljeborg and Diaptomus oregonensis Forbes in several shallow Quebec lakes where they occurred allopatrically and sympatrically within a small geographic region. Both species overlapped… Read More
Factors governing clutch size in two speceis of Diaptomus (Copepoda: Calanoida)
The effect of handling and acclimation period on the grazing rate of Daphnia and Diaptomus
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.… Read More
Factors regulating in situ filtering rates of Cladocera
Individual filtering rates of four species of Daphnia, as well as Holopedium, Diaphanosoma, Ceriodaphnia, and Bssmina, were measured in 10 lakes under various field conditions to identify important factors regulating in situ filter-feeding for these cladocerans. Linear regression… Read More