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Life Cycle

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The female lays around 1000 eggs in the depression created by the male who later takes care of eggs and young alone (Ref. 26281).
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Armi G. Torres
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Trophic Strategy

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Rocky and sandy pools of creeks and small to medium rivers; rocky and vegetated lake margins.
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Pascualita Sa-a
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Biology

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Rocky and sandy pools of creeks and small to medium rivers; rocky and vegetated lake margins (Ref. 5723). Adults feed on terrestrial insects and both immature and adult aquatic insects, particularly larger varieties such as mayflies and dragonflies. Juveniles consume benthic organisms such as dipteran larvae (Ref. 10294).
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Rainer Froese
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Importance

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gamefish: yes; aquarium: commercial
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Redbreast sunfish

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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 centimetres (12 in).

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.

Lepomis 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.

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Typical redbreast sunfish from the Tallapoosa River, Alabama

Description

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Redbreast sunfish (Lepomis auritus) from Maryland
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Redbreast sunfish caught on 1/8oz rooster tail in Georgia

The species' native range is in the eastern United States and Canada, in 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 (61–79 °F). 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 centimetres (4 in) with a record 30.5 centimetres (12.0 in). The record weight for the fish is 0.79 kilograms (1.7 lb). Rarely are bag 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, management plans should be put into effect to preserve the population.

Distribution

The redbreasted sunfish tends to be more of a cool-river species, but also inhabits freshwater lakes and streams. The species has been introduced as far west as Louisiana and West Texas. Native range of the sunfish is a relatively large area with the species new introduction points not straying far from its native habitats.

Ecology

Redbreast sunfish mainly consume immature aquatic insects. Mayflies, small fish, and dragonfly larvae consist of the majority of the sunfish's diet based on stomach content. Being an opportunistic feeder, the fish competes with other sunfish and larger predatory fish that prey on the same food they do. Larger piscivorous fish are the main predators of smaller redbreast sunfish. Micropterus species are a major threat to sunfish because of the shared habitat and the large availability of the sunfish. The sunfish prefers structure around banks and overhanging branches that provide shade to provide food and protection. Lepomis auritus survives best in water with current and a pH between 7.0 and 7.5. Lack of current or too acidic or basic water can dramatically affect the sunfish's survival rate. Human influence on abiotic and biotic factors such as sunlight and predator numbers can have a major influence on sunfish. Factors such as clearing debris bank cover can increase amount of sunlight into the water and increase water temperature and decrease defense habitats, also decreasing the number of predators by eating larger predatory fish will increase the survival rate of the redbreast sunfish.

Life history

The redbreast sunfish is a spring spawner on sand-gravel substrate depending on location, or when water temperature reaches 16–26 °C (61–79 °F). According to Stanley Sharp, "The mature male generally builds a nest in shallow water or may simply use the abandoned nest of another Centrarchid. The female eventually enters the nest, releases her adhesive eggs, and then leaves. The male remains to guard and fan the eggs and possibly even to guard the young for a brief period. The male and female will then move out of the shallow water after spawning and into deeper water. A male sunfish will breed with more than one female, just as female sunfish will breed with more than one male. Average clutch size for the sunfish is around 2000 depending on the age of the female. Mature ova are around 1.1 millimetres (0.043 in) in diameter. Reproductive maturity is reached the second year of life. They have been known to have a maximum lifespan of around seven years for primarily males. Currently, humans do not play a large role in influencing life history due to large populations and secluded areas.

Relationship with humans

Management

Currently, the redbreast sunfish is not on the federal or state endangered or threatened species list. The species is thriving in its natural habitat.

Angling

The IGFA all tackle world record for the species stands at 0.79 kilograms (1 lb 12 oz) caught from the Suwannee River in Florida in 1984.[3]

References

  1. ^ NatureServe (2013). "Lepomis auritus". IUCN Red List of Threatened Species. 2013: e.T184095A18235291. doi:10.2305/IUCN.UK.2013-1.RLTS.T184095A18235291.en. Retrieved 19 May 2020.
  2. ^ Froese, Rainer and Pauly, Daniel, eds. (2019). "Lepomis auritus" in FishBase. December 2019 version.
  3. ^ "Sunfish, redbreast". igfa.org. IGFA. Retrieved 17 June 2019.
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Redbreast sunfish: Brief Summary

provided by wikipedia EN

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 centimetres (12 in).

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.

Lepomis 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.

 src= Typical redbreast sunfish from the Tallapoosa River, Alabama
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