Rotifers due to their relatively short lifespan, high fecundity and high rate of population growth are ideal for chronic toxicity tests. The aim of this research was to determine the lethal concentrations (LC50 24 h) of deltamethrin and imidaclopride and their impacts on the reproduction and growth of the freshwater rotifer, Brachionus calyciflorus. Experiments were carried out based on the gui...

First feeding of many fish larvae depends on live feed. A comparative investigation the effectiveness different types feed is not available to our knowledge. Hence, we conducted a study examine effect and combinations performance (survival rate, total length, body width, mass, malformation rate) pikeperch, Sander lucioperca, larvae. From day 0 (onset exogenous feeding) 10, saltwater rotifer Bra...

Abstract Brachionus calyciflorus is a recently described monogonont rotifer species complex that comprises four species. The observation of hybridisation between two these challenges this delimitation. mechanisms reproductive isolation essential to the maintenance integrity remain unclear. Here, we conducted upscaled experiments obtain large numbers hybrid and non‐hybrid dormant propagules. Thr...

The objective of the study was to determine the leachates toxicity from sewage sludge-amended soils (sandy and loamy). Samples originated from a plot experiment realized over a period of 29 months. Two types of soil were fertilized with sewage sludges at the dose of 3 % (90 t/ha). Soil samples were taken after 0, 7, 17, and 29 months from the application of sewage sludges. Leachates were obtain...

Abstract Brachionus calyciflorus is a species complex consisting of four recently described species. Although several lines evidence support their status, hybridization between two the sibling B. s.s. and elevatus has been inferred from both field laboratory studies. In this study, we tested for existence prezygotic barriers these by performing types cross-fertilization experiments. ‘mate compe...