Bluegill
Scientific Name: Lepomis macrochirus | Category: freshwater
The bluegill is a quintessential panfish, instantly recognizable by its deep, laterally compressed body and the distinctive dark blue or black 'ear flap' at the rear of its gill cover. Its coloring is a vibrant tapestry: olive-green back fading to a yellowish-orange belly, often adorned with vertical bars and iridescent blue or purple highlights on the cheeks and gill covers. Anglers will note its small mouth and the characteristic dark spot at the base of the dorsal fin. While typically caught in the 4- to 8-inch range, with weights under half a pound, trophy specimens can push 12 inches and over a pound, offering a surprisingly hefty handful in the shallows.
species.getBySlug
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"commonName": "Bluegill",
"scientificName": "Lepomis macrochirus",
"slug": "bluegill",
"category": "freshwater",
"aliases": [
"bream",
"sunfish",
"Bream",
"Sunny",
"Copperbelly",
"Blue Sunfish",
"Bluegill Bream",
"Bluegill Sunfish"
],
"description": "The bluegill is a quintessential panfish, instantly recognizable by its deep, laterally compressed body and the distinctive dark blue or black 'ear flap' at the rear of its gill cover. Its coloring is a vibrant tapestry: olive-green back fading to a yellowish-orange belly, often adorned with vertical bars and iridescent blue or purple highlights on the cheeks and gill covers. Anglers will note its small mouth and the characteristic dark spot at the base of the dorsal fin. While typically caught in the 4- to 8-inch range, with weights under half a pound, trophy specimens can push 12 inches and over a pound, offering a surprisingly hefty handful in the shallows.",
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"caption": "The bluegill is a quintessential panfish, instantly recognizable by its deep, laterally compressed body and the distinctive dark blue or black 'ear flap' at the rear of its gill cover.",
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{
"id": "d004b7fa-a40a-44b8-8034-1e0c8e6b030e",
"name": "Juvenile/Sub-Adult",
"slug": "juvenile-sub-adult",
"description": "Young bluegills school tightly in shallow, weedy areas for safety. This stage is all about rapid growth and learning the food web, feeding aggressively on zooplankton and aquatic insects to fuel their development.",
"appearance": "Less than 4 inches in length. Body shape is proportionally deeper than long. Coloration is muted for camouflage: a pale olive or tan back with faint, often broken, vertical bars of a slightly darker shade. The belly is silvery-white. The iconic blue gill flap (operculum) is present but small and black or very dark gray, lacking the bright blue edge of adults. No iridescent cheek coloration. The dark spot at the rear base of the dorsal fin is usually visible but less distinct.",
"triggers": null,
"habitat": "Very shallow, shoreline waters (1-3 feet) with dense vegetation (lily pads, cattails, brush) or structure (docks, fallen trees) in lakes, ponds, and slow-moving streams.",
"anglersNote": "Often caught incidentally while targeting adults, these small fish are perfect for introducing kids to fishing but are typically released to grow.",
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{
"id": "d126c834-1710-4eda-91b2-7736cd2b3486",
"name": "Adult",
"slug": "adult",
"description": "This is the classic, familiar bluegill of angling lore. Adults establish home territories in shallow cover, feeding opportunistically and playing a key role in the ecosystem as both predator and prey. Their aggressive nature makes them a reliable and entertaining target.",
"appearance": "The iconic panfish shape: a deep, laterally compressed body, typically 4-8 inches long (trophies 10-12+ inches). Base coloration is a vibrant olive-green to bronze on the back, fading through yellow to a bright yellowish-orange or copper belly. 6-8 distinct, dark vertical bars are often visible on the sides, especially when stressed. The defining feature is the pronounced, rigid gill flap (opercle) which is solid black with a vivid sky-blue or violet margin on the lower half. Cheeks and lower gill covers are marked with shimmering, wavy lines of iridescent blue or lavender. A prominent black spot decorates the posterior base of the soft dorsal fin. The pectoral fins are long and pointed.",
"triggers": "Reaching sexual maturity, typically by age 2-3.",
"habitat": "Sunlit shallow waters (3-10 feet) near cover like weed beds, submerged timber, boat docks, and lily pad fields in lakes, ponds, and slow rivers.",
"anglersNote": "The primary target for anglers. Provides consistent action on light tackle and is excellent table fare. The larger 'bull' bluegills are considered prized trophies.",
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{
"id": "7c0b3050-c6d3-4819-a7ce-cea6f2b6aed2",
"name": "Spawning Male",
"slug": "spawning-male",
"description": "During the spring and summer spawn, males transform radically to attract females and defend their nests. They become intensely territorial, aggressively charging any intruder near their saucer-shaped nests in theshallows.",
"appearance": "A dramatic intensification of the adult form. Overall body color deepens to a dark olive or blackish back. The belly transforms into a brilliant, fiery orange-red or deep copper. The vertical bars become extremely bold and jet black. The blue margin on the gill flap and the iridescent cheek markings become even more vibrant and metallic. The breast area, just below the gills, often takes on a rich, dark purple or burgundy hue. Males actively guarding nests may appear almost black from above.",
"triggers": "Water temperature rising to 67-80°F (19-27°C) in late spring/summer, triggering nest-building and spawning behavior.",
"habitat": "Extremely shallow (1-3 feet), clean sandy or gravel bottoms in protected bays and coves, often in colonies called 'beds'.",
"anglersNote": "Highly aggressive and easy to catch, but ethical anglers often practice catch-and-release on bedding fish to protect the spawn and future populations.",
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}
],
"contentUpdatedAt": "2026-05-09T22:29:53.897Z"
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