|
The redbreast sunfish (''Lepomis auritus'') is a species of freshwater fish in the sunfish family (family Centrarchidae) of order Perciformes. The type species of its genus, it is native to the river systems of eastern Canada and the United States. The redbreast sunfish reaches a maximum recorded length of about 30 cm (12 in), with a maximum recorded weight of 790 g (1.7 lb). The species prefers vegetated and rocky pools and lake margins for its habitat. Its diet can include insects, snails, and other small invertebrates. A panfish popular with anglers, the redbreast sunfish is also kept as an aquarium fish by hobbyists. Redbreast sunfish are usually caught with live bait such as nightcrawlers, crickets, grasshoppers, waxworms, or mealworms. They can also be caught using small lures or flies. Most anglers use light spinning tackle to catch redbreast sunfish. It is popular with fly anglers in the winter because it will more readily strike a moving fly than will bluegills in cooler water. As is typical for the sunfishes, the female redbreast sunfish lays her eggs (about 1000) in a substrate depression built by the male. The male guards the eggs and fry. ''L. auritus'' has been transplanted to and become established in Germany, Italy, Mexico, and Puerto Rico, sometimes with a harmful effect on native species. The specific epithet, ''auritus,'' is Latin for big-eared. ==Description== The species native range is condensed to eastern North America, in Canada and south to the rivers emptying into the Atlantic Ocean. The species has been introduced as far west as Texas. This fish primarily feeds on small insect larva, small crayfish, and sometimes small fish.'' Lepomis auritus'' thrives in streams and rivers with shelter and structure, usually around banks with the water pH around 7.0-7.5. The redbreast sunfish is a spring spawner in sand-gravel substrate depending on location, or when water temperatures reach 16-26°C. Average clutch size for the sunfish is around 2000 depending on the age of the female. The average length of the sunfish is around 11 cm with a record 30.5 cm. The record weight for the fish is 1.75 pounds. Rarely are limits set on the number of fish that can be harvested due to their large numbers and high reproductive capabilities. If a particular area is subject to overfishing or habitat destruction, managements plans should be put into effect to preserve the population. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「redbreast sunfish」の詳細全文を読む スポンサード リンク
|