Fish in the Amazon basin have adapted to bouts of low water O2 and high CO2, with many species evolving air-breathing or aquatic surface respiration mechanisms to supplement respiratory gas exchange.

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Whether it is Lent or you simply appreciate a big and delicious fish sandwich on any given day, your options are relatively limited. While chicken sandwiches and hamburgers are available at nearly ...

The biological material used in this study comes from sampling carried out in a natural environment comprising the limnetic zone of open water (02º28’42”S 54º38’04”W) and macrophyte stands in lakes ...

A hydroelectric dam impacting Brazil’s Amazonas and Rondônia states have slashed fished populations by as much as 90% in some locations, according to a new a study based on on-the-ground research in ...

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