Definition → Lutjanus sebae is a species of marine ray-finned fish belonging to the family Lutjanidae, commonly known as snappers. It is a piscivorous reef-associated fish found in tropical and subtropical waters of the Indo-West Pacific region.
Overview → Lutjanus sebae, commonly referred to as the emperor red snapper or crimson snapper, inhabits coastal reefs, offshore banks, and sometimes estuarine environments. It is distributed from the eastern coast of Africa, including the Red Sea and Madagascar, extending eastward through the Indian Ocean and into the western Pacific, reaching as far as northern Australia and southern Japan. This species is valued in both commercial and recreational fisheries and is occasionally found in the aquarium trade due to its striking coloration in juvenile stages.
Etymology/Origin → The genus name Lutjanus is derived from the Indonesian word "lōtjan," commonly used for snapper fish. The specific epithet sebae honors Albertus Seba, an 18th-century Dutch pharmacist, zoologist, and collector known for his extensive natural history cabinet and contributions to early taxonomic illustration.
Characteristics → Lutjanus sebae can reach a maximum length of approximately 125 cm (49 inches) and may weigh up to 30 kg (66 lbs). Adults exhibit a deep, fusiform body with a dorsal profile that is slightly convex. The coloration changes significantly between life stages: juveniles display vivid yellowish to golden vertical bands on a silvery to red background, while adults become uniformly reddish or pinkish, often with a bluish tinge on the dorsal surface and a silvery underside. The species has a terminal mouth equipped with canine-like teeth, typical of predatory snappers. It reaches sexual maturity at varying sizes depending on regional populations, and spawning is believed to occur in aggregations during warmer months.
Related Topics →
- Lutjanidae: The family of snapper fish to which Lutjanus sebae belongs.
- Coral reef ecosystems: Primary habitat for the species, especially during juvenile stages.
- Fisheries management: Lutjanus sebae is subject to fishing pressure; sustainable management is important in many regions.
- Ichthyology: The study of fish, including taxonomic classification and ecological roles of species such as L. sebae.
- Marine biology: Encompasses the behavioral, physiological, and ecological research of this species.