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Sargocentron rubrum, commonly known as the Redcoat or Red Squirrelfish, is a nocturnal reef fish belonging to the family Holocentridae. It is characterized by its striking reddish coloration and large eyes, adaptations for its crepuscular and nocturnal lifestyle. This species is a predatory fish, primarily feeding on small crustaceans and fish. It is often found in rocky or coral reef environments, seeking shelter in crevices and caves during the day.
Caratteristiche fisiche
- Forma del corpo
- compressed
- Colorazione
- The body is predominantly reddish to reddish-orange, often with silvery-white longitudinal stripes or blotches. The fins are typically reddish, with the dorsal fin often having white tips on the spines and rays. The operculum (gill cover) often has a prominent dark spot.
- Tipo di squame
- ctenoid
- Posizione della bocca
- terminal
- Caratteristiche distintive
- Large eyes, indicative of its nocturnal habits., A prominent, sharp spine on the preoperculum (bone before the gill cover), which can be venomous., Rough, ctenoid scales., A deeply forked caudal fin.
- Pinna dorsale
- Single dorsal fin, deeply notched, with 11-12 strong, venomous spines in the anterior part and 12-14 soft rays in the posterior part.
- Pinna caudale
- Deeply forked caudal fin with pointed lobes.
- Pinna pettorale
- Pectoral fins are relatively short and rounded, with 13-15 rays.
- Pinne distintive
- Anal fin with 4 spines (the third spine being the longest and strongest) and 8-10 soft rays. Pelvic fins are thoracic, with 1 spine and 7 soft rays.
Consigli per l'identificazione
Coloration
Look for the overall reddish to reddish-orange body color, often with lighter longitudinal stripes or blotches.
Eyes
Its very large eyes are a key indicator of its nocturnal nature and a distinguishing feature.
Preopercular Spine
The presence of a strong, sharp spine on the preoperculum is characteristic of squirrelfishes and soldierfishes, and specifically in S. rubrum, it is quite prominent.
Dorsal Fin
The deeply notched dorsal fin with strong spines in the anterior part is a good identification mark.
Habitat
- Tipo di acqua
- saltwater
- Profondità
- Typically found at depths ranging from 1 to 70 meters (3 to 230 feet), though occasionally deeper.
- Ambiente
- Associated with coral reefs, rocky reefs, and rubble areas. Prefers areas with plenty of crevices, caves, and overhangs for shelter during the day.
- Areale geografico
- Widespread in the Indo-Pacific region, from the Red Sea and East Africa across to the Hawaiian Islands and French Polynesia, north to southern Japan, and south to Australia.
Informazioni sull'acquario
- Livello di cura: intermediate
- Temperamento: semi-aggressive
- Dieta: carnivore
- Dimensione minima della vasca: 120 gallons (450 liters)
- Temperatura: 72-78°F (22-26°C)
- Livello di pH: 8.1-8.4
- Durezza: 8-12 dKH
- Compatibilità: Can be kept with other semi-aggressive to aggressive fish of similar size. Avoid keeping with very small, docile fish or invertebrates that could be prey. Only one per tank unless it's a very large system with ample hiding spots.
- Requisiti speciali: Requires plenty of live rock with caves and overhangs for hiding during the day. A well-established tank with stable water parameters is crucial. Feed a varied diet of meaty foods.
Informazioni in natura
- Stato di conservazione: least concern
- Stagionalità: No specific seasonality for fishing, available year-round in its range.
- Prezzo di mercato: Low
- Importanza commerciale: low
- Sapore: Mild, white flesh
- Consistenza: Flaky
- Metodi di cottura: Fried, Baked, Steamed
- Valore nutrizionale: Good source of protein and omega-3 fatty acids.
Fatti chiave
Nocturnal Hunterbehavior
Sargocentron rubrum is primarily active at night, emerging from its daytime hiding spots to hunt for small crustaceans and fish.
Venomous Spinesinteresting
Like many squirrelfishes, S. rubrum possesses venomous spines, particularly the preopercular spine, which serves as a defense mechanism against predators.
Sound Productionbehavior
Squirrelfishes, including S. rubrum, are known to produce sounds, often described as grunts or clicks, using muscles associated with their swim bladder. These sounds are thought to be used for communication, especially during courtship or when threatened.
Color Changebehavior
While predominantly red, S. rubrum can exhibit some degree of color change, often becoming paler or more mottled when stressed or at night.
Informazioni di sicurezza
Velenoso- Livello di sicurezza: venomous
- Velenoso: Sì
- Commestibilità: edible
- Note sul maneggio: Exercise extreme caution when handling Sargocentron rubrum. The spines on the dorsal fin, anal fin, and particularly the preopercular spine are venomous and can inflict painful stings. The venom is not typically life-threatening to humans but can cause intense localized pain, swelling, and discomfort. If stung, immerse the affected area in hot water (as hot as can be tolerated without scalding) to help denature the protein-based venom. Seek medical attention if symptoms are severe or persistent.
Specie simili
Crown Squirrelfish
Sargocentron diadema
Sargocentron diadema typically has more pronounced white stripes on a red body and a distinct black spot at the base of the soft dorsal fin. S. rubrum often has a dark spot on the operculum, which S. diadema lacks.
Giant Squirrelfish
Sargocentron spiniferum
Sargocentron spiniferum is a much larger species, reaching up to 50 cm, and generally has a more uniform red coloration without prominent stripes, though it can have white markings. Its preopercular spine is also very robust.
Spotfin Squirrelfish
Sargocentron punctatissimum
Sargocentron punctatissimum is generally paler, often silvery-pink, with rows of small dark spots along the body, which S. rubrum lacks. It also has a less deeply notched dorsal fin.
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Beryciformes
- Famiglia
- Holocentridae
- Genere
- Sargocentron
- Specie
- Sargocentron rubrum
Esplora Redcoat
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