Catadrenidae

Catadrenidae is a family of ray-finned fish that are part of the order Perciformes. These fish are found in the freshwater and brackish waters of South America. The family is relatively small, containing only a few genera and species. Catadrenids are generally small to medium-sized fish, often inhabiting rivers, streams, and estuaries. They exhibit a variety of coloration and body shapes depending on the specific species. Their diets typically consist of invertebrates and smaller fish. Reproduction in Catadrenidae varies, but many species are known to lay eggs, often guarding them until hatching. Further research is ongoing to fully understand the diversity and ecological roles of this family within their native South American aquatic environments. The taxonomic classification of Catadrenidae has undergone revisions over time as new genetic and morphological data become available, solidifying their position within the broader ichthyological framework.