Pygmy sunfish
Genus of fishes / From Wikipedia, the free encyclopedia
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Elassoma is a genus of freshwater fish, the only member of subfamily Elassomatinae of the sunfish family Centrarchidae in the order Perciformes.[1] It is sometimes classified as a separate family, the Elassomatidae, in a monotypic suborder, Elassomatoidei, in Perciformes. The type species is E. zonatum, the banded pygmy sunfish. The Elassomatinae are known collectively as pygmy sunfishes, but are considered by some authorities not to be true sunfishes, which are members of family Centrarchidae. Some researchers believe they are related to sticklebacks and pipefishes (order Syngnathiformes) rather than Perciformes, though genetic research strongly implies a close relationship with the centrarchids.[2] Currently the Integrated Taxonomic Information System classifies them in the family Elassomatidae rather than Centrarchidae. [3]
Elassoma | |
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Unidentified species | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Perciformes |
Family: | Centrarchidae |
Subfamily: | Elassomatinae D. S. Jordan, 1877 |
Genus: | Elassoma D. S. Jordan, 1877 |
Type species | |
Elassoma zonata D. S. Jordan, 1877 | |
Species | |
See text. |
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/e/e2/Pygmy_Sunfish%2C_Elassoma_evergladei.jpg/640px-Pygmy_Sunfish%2C_Elassoma_evergladei.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Elassoma_okefenokee_male.png/640px-Elassoma_okefenokee_male.png)
The pygmy sunfishes grow to a maximum overall length of 3 to 4 cm (1 to 1.5 in). They occur mostly in temperate and subtropical swamps, marshes, and other shallow, slow-moving, and heavily vegetated waters, across an area of the American South stretching from the Coastal Plain of North Carolina to central Florida, west along the Gulf Coast to eastern Texas, and north up the Mississippi River Valley to southern Illinois. The bluebarred, Carolina, and spring pygmy sunfishes have small localized populations and are considered Vulnerable.
The pygmy sunfishes are too small to be game fish, but are relatively popular as aquarium fish because of the males' iridescent colors and fascinating breeding behaviors. Eggs are laid on or beneath dense vegetation, and the male guards the nest area until the fry hatch and scatter. They adapt well to small aquaria and are relatively adaptable to a range of conditions, but seldom take conventional prepared fish foods, instead requiring small live worms, insects, or crustaceans as food.