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Pumpkinseed

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The pumpkinseed (Lepomis gibbosus) is a small to medium-sized freshwater fish. It belongs to the genus Lepomis, which includes true sunfishes. This species is a member of the Centrarchidae family. It is native to eastern North America. The name "Lepomis" comes from the Greek word for a scaled gill cover. The species name "gibbosus" means humped. This fish is easily recognized by its bright red spot on its ear flap. Its body shape is also very similar to a pumpkin seed.

Landed pumpkinseed sunfish
Landed pumpkinseed sunfish

Pumpkinseeds have many vibrant colors. They can appear orange, green, yellow, or blue. Their sides often feature speckles and vertical bars. These bars are usually a faint green or blue. These markings are often more visible on female fish. The fish also has orange spots on its fins. A very specific feature is the crimson, half-moon shaped spot on the black opercular flap. This flap is the gill cover.

Young pumpkinseed sunfish
Young pumpkinseed sunfish

These fish have developed several clever biological adaptations. One method is camouflage. Their skin patterns mimic the sunlight reflecting on shallow water. They also have sharp spines for defense. There are 10 to 11 spines on the dorsal fin. There are also three spines on the anal fin. To detect movement, they use a lateral line system. This system uses mechanical receptors to sense changes in the water. They also use an "eye spot" on their gill plates. This dark patch makes the fish look four times larger than it is.

Juvenile pumpkinseed
Juvenile pumpkinseed

In the spring, pumpkinseeds follow a specific reproductive cycle. When water temperatures reach 15°C, males begin building nests. They choose shallow water with sand or gravel bottoms. Males use their caudal fins to sweep out oval nesting holes. These holes are about twice the length of the fish. They also use their mouths to remove large rocks. Nests often form in colonies of 3 to 15. Females arrive from deeper water to spawn. A single female can produce 1,500 to 1,700 eggs.

Pumpkinseed Sunfish caught on a dock
Pumpkinseed Sunfish caught on a dock

After spawning, the parental roles change. The female leaves the nest immediately. The male remains to guard the offspring for about 11 days. He will even carry stray young fish back to the nest in his mouth. The young fish stay near the breeding area. They grow to about 25 mm in their first year. Most pumpkinseeds reach sexual maturity by age two. In the wild, they usually live for six to eight years. However, they can live up to 12 years in captivity.

Pumpkinseeds are carnivorous and eat many different things. They feed on insects, worms, and small crustaceans like crawfish. They also eat minnow fry and small frogs. In some areas, they are known as "shellcrackers." This is because they have large jaw muscles to crack shells. They use these muscles to eat mollusks and gastropods. They can even eat human food scraps like bread. This makes them very easy for anglers to catch.

This fish has a wide distribution across North America. It ranges from New Brunswick, Canada, to South Carolina. It also lives inland from Pennsylvania to Iowa. Humans have introduced them to the Pacific Coast as well. In Europe, however, they are an invasive species. They can outcompete native fish for resources. Because of this, the European Union has strict rules against them. They cannot be imported or released into the environment.

Europe Lepomis map
Europe Lepomis map
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🖼️ Images & Media (5)
File:Europe Lepomis map.png
Europe Lepomis map.png
File:Landed pumpkinseed sunfish.JPG
Landed pumpkinseed sunfish.JPG
File:Pumpkinseed Sunfish caught on a dock.jpg
Pumpkinseed Sunfish caught on a dock.jpg
File:Juvenile pumpkinseed.jpg
Juvenile pumpkinseed.jpg
File:Young pumpkinseed sunfish.jpg
Young pumpkinseed sunfish.jpg
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