The global amphibian decline caused by the chytrid fungus Batrachochytrium dendrobatidis (Bd) threatens biodiversity. Some species, such as the bullfrog ( Aquarana catesbeiana ), can persist with infection without overt disease, yet the processes underlying this response remain unclear. Because bullfrogs are farmed worldwide under high-density conditions, understanding how production environments influence infection dynamics a...

Risk management for agricultural use of digested sewage sludge requires better understanding of the behaviour and fate of contaminant metals in the plant root zone. A study employing rhizo-pot and plug-tray experiments was conducted to identify the zone near spring barley roots ( Hordeum vulgare ) where concentration and speciation of Cu and Zn are affected. Cu and Zn bonding environments in the root epidermis/cortex and vascu...

The potential of polychaetes for the bioremediation of aquaculture sludge gained more attention in recent years. These organisms can reduce organic matter and nutrients contained in the sludge of several aquaculture species, improving the sustainability of these activities. The aim of this study was to evaluate the removal performance of Perinereis gualpensis (Jeldes, 1963) being fed with aquaculture sludge produced by a recir...