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Showing 1 to 7 of 7 for “"leptodora"”.
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Diel and horizontal patterns in the densities of Bythotrephes, Chaoborus, and Leptodora in a Minnesota Reservoir
… cederstroemii, Chaoborus punctipennis, and Leptodora kindtii—in one system can help describe food web dynamics and inform management decisions. The population densities of these three species were examined in a tannin-stained lake (Island Lake Reservoir, Duluth, MN, USA) on eight dates in …
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Food Selectivity of the Black Bullhead (Ictalurus melas, Rafinesque) in Lake Poinsett, South Dakota
… primarily on limnetic cladocerans and copepods. Leptodora and Diaphanosoma comprised 86.5% of the total food volume. Chironomid larvae and pupae made up 5.6% of the total. Other benthic organisms and littoral cladocerans together contributed less than 1%. Stomach contents of 608 subadult and …
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Predatory Impact of Exotic Cladoceran Cercopagis pengoi on the Zooplankton of Lake Ontario
… Ceriodaphnia lacustris, Scapheloberis kingi, and Leptodora kindtii. Between 1999 and 2001 decreases in the abundance of common members of the zooplankton community coincided with an increase in the abundance of Cercopagis. Daphnia retrocurva populations declined despite high birth rates in all …
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A Study of the Macroinvertebrate Drift in the Des Moines River
… of detritus and lentic zooplankton, such as Leptodora, from the reservoir. A positive correlation between numbers in the drift and volume was noted, except as a result of major variations caused by life cycle stages of an individual taxon. Conclusions. The total number of organisms and the …
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Verteilung und Ernährung larvaler und juveniler Stadien von Plötze (Rutilus rutilus (L.)) und Barsch (Perca fluviatilis L.) im Biomanipulationsexperiment Feldberger Haussee (Mecklenburg-Vorpommern)
… (0+-Barsch vorwiegend Eudiaptomus, Diaphanosoma, Leptodora; 1+/2+-Plötzen fraßen Cladocerennahrung Bosmina und in hohen Anteilen auch Daphnia). Separation und Aufteilung der Zooplanktonresourcen konnte auch für die bevorzugte Größe der Zooplankter beobachtet werden. Die hohen Wachstumsraten und …
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Influence of Rainbow Smelt Predation on Zooplankton Community Composition in Lake Oahe, South Dakota
… selected for were Daphnia galeata mendotae and Leptodora kindtii. Rainbow smelt prey were significantly larger than mean size of zooplankton in the environment. Zooplankton densities ranged from 254/L at Whitlock's Channel in May to 10/L at Bush's Bay in June. Cyclopoid copepods were numerically …
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Trophic ecology of an introduced, land-locked alewife (Alosa pseudoharengus) population and assessment of alewife impact on resident sportfish and crustacean zooplankton communities in Claytor Lake, Virginia
… bass positively selected a zooplankton species (Leptodora kindtii) that was concurrently preferred by alewife. Partitioning of the food complex among cove-inhabiting young sportfishes was in evidence. Predation upon one another, as well as cannibalism appeared to be a more critical trophic …