Big bend gambusia
Encyclopedia
The Big Bend gambusia is a rare species of fish
in the Poeciliidae
family. It is endemic to the Big Bend
region of the Rio Grande
of the United States
and Mexico
. The only known remaining population is in a protected pond in the Big Bend National Park
.
This livebearer is about 2 inches long. It feeds on aquatic invertebrates.
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
in the Poeciliidae
Poeciliidae
Poeciliidae is a family of fresh-water fish which are live-bearing aquarium fish . They belong to the order Cyprinodontiformes, tooth-carps, and include well-known aquarium fish such as the guppy, molly, platy, and swordtail...
family. It is endemic to the Big Bend
Big Bend (Texas)
The Big Bend is a colloquial name of a geographic region in the western part of the state of Texas in the United States along the border with Mexico, roughly defined as the counties north of the prominent northward bend in the Rio Grande as it passes through the gap between the Chisos Mountains in...
region of the Rio Grande
Rio Grande
The Rio Grande is a river that flows from southwestern Colorado in the United States to the Gulf of Mexico. Along the way it forms part of the Mexico – United States border. Its length varies as its course changes...
of the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
and Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...
. The only known remaining population is in a protected pond in the Big Bend National Park
Big Bend National Park
Big Bend National Park is a national park located in the U.S. state of Texas. Big Bend has national significance as the largest protected area of Chihuahuan Desert topography and ecology in the United States, which includes more than 1,200 species of plants, more than 450 species of birds, 56...
.
This livebearer is about 2 inches long. It feeds on aquatic invertebrates.