A5044722770- Fish Ecology and Management Studies
- Aquatic Invertebrate Ecology and Behavior
- Crustacean biology and ecology
- Fish Biology and Ecology Studies
- Animal Behavior and Reproduction
- Physiological and biochemical adaptations
- Fish biology, ecology, and behavior
- Parasite Biology and Host Interactions
- Coral and Marine Ecosystems Studies
- Environmental Toxicology and Ecotoxicology
University of South Bohemia in České Budějovice
2016-2024
Despite the spread of round goby Neogobius melanostomus into freshwater streams, there is a lack information with respect to its effect on macroinvertebrate communities, especially crustaceans. We studied foraging efficiency N. Procambarus virginalis and Asellus aquaticus, using functional response (FR) approach. Stocking density prey species was manipulated determine consumer utilization, offered separately or combined at 1:1, 3:1, 1:3 each tested density. For both species, exhibited type...
The round goby Neogobius melanostomus is a notoriously invasive fish originating from the Ponto-Caspian region that in recent decades has successfully spread across globe. One of its primary impacts direct predation; addition, when entering new ecosystems, likely to become food resource for many higher native predators. However, little known either about indirect effects predators on as prey or feeding behaviour and activity. non-consumptive effect presence presumably plays an important role...
The round goby ( Neogobius melanostomus ) is a well-known invasive fish. Knowledge of its feeding habits and means food processing key in understanding impact on aquatic webs. present study assessed the gut evacuation rate gobies three different types prey occurring naturally diet this species (small native freshwater clams, an amphipod chironomid larvae), at two temperatures (14 20 °C) under availability scenarios (continuous non-continuous feeding). Gut rates varied significantly between...
Abstract Sterlet ( Acipenser ruthenus ), one of the last sturgeons in Danube basin, is regularly stocked national and international restoration programs, but efficacy stocking has not yet been evaluated. Effectiveness should involve marking evaluating growth survival juveniles. Chemical with alizarin red S (ARS) was evaluated to establish optimal ARS staining approaches for juvenile sterlet. Bathing a 100–200 mg l −1 concentration 12 h had no affect on fish mortality or growth. Use green...
Abundance and per-capita foraging efficiency are essential factors for predicting quantifying an invasive predator impact on prey, i.e., the potential (IP). However, population structure is not included in calculation, IP accuracy might be improved by incorporating body size. The of round goby Neogobius melanostomus , a highly predator, was surveyed Elbe River. We determined functional response (FR, per capita foraging) three most abundant size classes N. water louse Asellus aquaticus . then...