Rotifers are diverse bioindicators in shallow lakes, but aggregate metrics can obscure the direction and magnitude of their responses to eutrophication. Here, we analysed rotifer communities across 83 South American shallow lakes spanning a broad eutrophication gradient to interpret taxon-specific contributions to community change. Ten species met stringent identification criteria (purity and reliability ≥ 0.85), with four con...

Macrobrachium amazonicum is a widely distributed freshwater prawn inhabiting river basins across South America. It includes both diadromous and hololimnetic populations, exhibiting notable differences in bioecological, physiological, and reproductive traits. Individuals from the Pantanal region display distinct characteristics that led to their classification as a separate species, Macrobrachium pantanalense . Despite these di...