Seasonal changes in the diel feeding patterns of the zooplanktivorous icefish (Neosalanx taihuensis), which is an endemic species of China, were studied in the large, shallow eutrophic Lake Chaohu of China during the autumn of 2002 and summer of 2003. The results of the diel feeding rhythm indicate that icefish is a visual particulate feeder. There were large differences in diet composition and...

Ecological investigation of two riverine wetlands of Goalpara district, Assam, India was carried out in relation to planktonic productivity from 2006 to 2008. The physico chemical parameters were found fluctuating with the growth of both phytoplankton and zooplankton. Both the beel was dominated by Chlorophyceae throughout the year amongst which Ulothrix and Spirogyra were found as dominating s...

Fish farming in net cages causes changes in environmental conditions. We evaluated the resilience of zooplankton concerning this activity in Rosana Reservoir (Paranapanema River, PR-SP). Samples were taken near the net cages installed at distances upstream and downstream, before and after net cage installation. The resilience was estimated by the decrease in the groups' abundance after installi...

The cladoceran, Moina micrura, is a potential alternative live food for fish larvae. The effects of L-carnitine enrichment on first reproduction age, population density, and growth rate in M. micrura were determined. The cladocerans were enriched at 10 levels of L-carnitine (0, 0.001, 0.01, 0.1, 1, 10, 100, 500, 1000, and 1500 mg/l) dissolved in 30 ml Chlorella vulgaris culture medium for 17 da...

Hydrological changes affect not only the physicochemical factors and habitat structure of river ecosystems, but also biological communities sensitive to environmental changes, such as zooplankton. In this study, we investigate effects weir opening on variables topographic structures at Sejong Weir in South Korea monitor resulting distribution zooplankton community. led increased dissolved oxyge...

Our earlier studies showed that paired photostimulation allows the detection of pollutants in an aqueous medium according to behavioral responses freshwater Crustacea. The first stimulus initiated and stabilized response. increase response second made it possible assess responsiveness zooplankton community. This paper validity this method for micro- nanoplastic contamination saltwater reservoir...

The nearshore and estuary are the main gathering areas of nanoparticles (NPs), salinity change is a crucial characteristic in these marine areas. Moina mongolica Daday an important open-ended bait aquaculture environment. Investigating toxicity mechanism NPs to M. under different conditions exploring biological impact Two typical metal oxide TiO 2 Ag were used this study test acute, chronic, re...