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The bluegill sunfish relies heavily on the flexibility of its fins to maintain maneuverability in response to fluid forces. The bluegill's segmentation in its pectoral fin rays mitigates the effects of fluid forces on the fish's movement. [19] The bluegill has a variety of unusual adaptations that allow it to navigate different environments.
The bluegill bully is the smallest of the Eleotrids, commonly reaching only 60–70 mm (2.4–2.8 in). [2] It is named for the bright blue edge to the operculum or gill cover, which is present in both sexes. It eats aquatic invertebrates and has an upturned mouth, allowing them to pick invertebrates off the stones above them. [2]
The pumpkinseed x bluegill sunfish [1] (Lepomis gibbosus x macrochirus), sometimes colloquially referred to as hybrid sunfish or pumpkingill, [citation needed] is a hybrid between a pumpkinseed (Lepomis gibbosus) and a bluegill (Lepomis macrochirus). [2] They are sometimes found in lakes and ponds where both parent species are present. [2]
The adult fish are between 20 and 24 cm (7.9 and 9.4 in) in length. Max length is 43.2 cm (17.0 in), compared to a maximum of about 40 cm (16 in) for the bluegill. Redear sunfish on average reach about 0.45 kg (0.99 lb), also larger than the average bluegill. [4]
Cortinarius delibutus, also known as the bluegill webcap or the yellow webcap, is a basidiomycete fungus of the genus Cortinarius. The fruit bodies are medium-sized, with shiny yellow caps on a sticky, yellow-banded club-shaped stem. The mushroom is found in Europe and North America, usually near birch or beech trees.
David P. Philipp is an American-born biologist known for his work on conservation genetics, reproductive ecology, and the effects of angling on fish populations. [1] [2] He is a conservation geneticist and Director of the Fisheries Genetics Lab at the Illinois Natural History Survey, an adjunct professor at the University of Illinois, and the Chair of the Fisheries Conservation Foundation.
Male longear sunfish. The longear sunfish (Lepomis megalotis) is a freshwater fish in the sunfish family, Centrarchidae, of order Centrarchiformes.It is native to the area of eastern North America stretching from the Great Lakes down to northeastern Mexico. [3]
USS Bluegill (SS-242/SSK-242) was a Gato-class submarine in commission in the United States Navy from 1943 to 1946, from 1951 to 1952, and from 1953 to 1969. She was named for the bluegill , a sunfish of the Mississippi Valley .