The fish faunas of continental South and Central America constitute one of the greatest
concentrations of aquatic diversity on Earth, consisting of about 10 percent of all living …

The Amazon is a giant piece of" amphibian" land which is the result of complex geological
and evolutionary processes. The number of living beings in such a land is difficult to …

ABSTRACT Al/~(. r%,, JS 2000. Sj~ uc. ir:\cliv~ rt ily cind pltyloger~ elic syslmrnric:.,(f A mc.
ric. on knif~/ish~~, s (($ tr~ nolz/i, r. tnc~,'lP1uoski). Misc. I'ubl. Mu.\. Zool. Ilttin Michiyccrr …

Drift activity of stream invertebrates typically is greatest during the nighttime hours in running
waters throughout the world. Such diel periodicity may be an adaptive response that …

Neotropical floodplain lakes provide an excellent opportunity to examine the regulation and
stability of fish assemblages. At low water, when lakes are separated, fish are concentrated …

This review describes the endocrine changes that occur during the annual reproductive
cycle of Pygocentrus cariba, Pimelodus blochii, and Oxydoras sifontesi and their …

Since the 1930s, alien fishes (fishes not native to Peru) have been introduced into the
freshwater systems of Peru for different purposes such as fish farming, the ornamental fish …

Osteological features of cynodontine species and other characiforms were examined in
order to investigate the monophyly of the Cynodontinae and the relationships among its …

We analyzed fish distribution patterns of 10 lagoons and six of their tributaries between 200
m and 295 m altitude along two parallel headwater tributaries of the upper Amazon, within …

The Characiformes, as defined by Fink and Fink (1981), are a major group of
ostariophysean fishes confined to the freshwaters of the Neotropics and Africa. They range …