Surface freshwaters—lakes, reservoirs, and rivers—are among the most extensively altered
ecosystems on Earth. Transformations include changes in the morphology of rivers and …

Freshwater ecosystems worldwide are experiencing native fish losses with severe threats to
the conservation of freshwater biodiversity and ecosystem functioning, and the debate on …

Riverine flow regimes are naturally dynamic, but become increasingly homogenized
following anthropogenic flow alteration. Loss of dynamism disrupts naturally occurring …

The current distribution and abundance of the 40 species of Goodeidae fishes known from
Mexico are described, and a total of 84 Evolutionarily Significant Units (ESUs) is designated …

Fishes are the most diverse group of vertebrates with 36,179 valid species, of which 45% of
them are freshwater fishes. This freshwater fish diversity is extraordinary considering that …

Habitat modifications, non‐native species and other anthropogenic impacts have
restructured fish communities in lotic ecosystems of central Mexico. Conservation of native …

The increasing degradation of freshwater ecosystems has demanded the development of
methods that allow us to evaluate the ecosystem alterations. The Indexes of Biological …

Over the past two decades researchers have documented the extent of natural hybridization
between closely related species using genomic tools. Many species across the tree of life …

Karst spring systems provide permanent water sources in semi-arid to arid environments,
supporting a diverse aquatic community. Numerous karst streams in the Edwards Plateau …

We describe the successful application of a 4-decade analysis of an Index of Biotic Integrity
(IBI) demonstrating its assessment value when applied to the fish community of Lake …