Since the Industrial Revolution, the concentration of atmospheric carbon dioxide (CO 2 ) due to anthropogenic activities has increased at unprecedented rates. One-third of the atmospheric anthropogenic CO 2 emissions are dissolved in the oceans affecting the chemical equilibrium of seawater, which in turn leads to a decrease in pH and carbonate ion (CO 3 2- ) concentration, a phenomenon known as ocean acidification (OA). This...

Specimens of Imparfinis were recently collected in north‐western Argentina from the Bermejo River basin (Salta and Jujuy Provinces), del Valle River (Salta Province) and Horcones River (Santiago del Estero Province). An integrative approach to taxonomy, combining a detailed morphological study and molecular phylogenetic analyses, was applied to determine the species identity of these specimens. A principal components analysis...

Intensive fish culture is a practice in aquaculture systems; however, it can produce negative environmental impacts due to the accumulation of organic nitrogen from feeding procedures, but also from fish wasting products. Recirculating aquaculture systems have emerged as one strategy to reduce these impacts, maintaining a healthy environment for fish. These reduce toxicity level through nitrifying biofilters, which use a micro...