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Cephalopholis boenak, commonly known as the Brown-banded Rockcod, is a small to medium-sized grouper belonging to the family Serranidae. It is characterized by its distinctive coloration and robust body shape, typical of reef-dwelling predators. This species is a common inhabitant of rocky and coral reef environments across the Indo-Pacific, playing a role as a mesopredator in its ecosystem.
Caratteristiche fisiche
- Forma del corpo
- elongated
- Colorazione
- The body is typically light brown to reddish-brown, adorned with 7-8 distinct dark brown to black vertical bands that extend onto the dorsal fin. The fins are generally dark, often with a blackish margin on the soft dorsal, anal, and caudal fins. Some individuals may display a yellowish tinge on the pectoral fins. The intensity of the banding can vary with mood and environment.
- Tipo di squame
- ctenoid
- Posizione della bocca
- terminal
- Caratteristiche distintive
- 7-8 dark vertical bands on the body, Dark fins, often with blackish margins, Relatively small eyes for a grouper, Robust, slightly compressed body
- Pinna dorsale
- Single dorsal fin with 9 spines and 15-17 soft rays. The spinous portion is continuous with the soft-rayed portion, with a slight notch.
- Pinna caudale
- Rounded caudal fin.
- Pinna pettorale
- Pectoral fins are relatively short and rounded, with 16-18 rays.
- Pinne distintive
- Anal fin with 3 spines and 8-9 soft rays. Pelvic fins are short, originating slightly anterior to the pectoral fin base.
Consigli per l'identificazione
Body Bands
Count the distinct dark vertical bands on the body; Cephalopholis boenak typically has 7-8.
Fin Coloration
Observe the dark coloration of the fins, especially the blackish margins on the soft dorsal, anal, and caudal fins.
Caudal Fin Shape
Note the rounded shape of the caudal (tail) fin, which is characteristic of this species.
Size
Adults typically reach a maximum length of about 30 cm (12 inches), making it one of the smaller groupers.
Habitat
- Tipo di acqua
- saltwater
- Profondità
- Typically found in depths ranging from 1 to 30 meters, occasionally deeper to 60 meters.
- Ambiente
- Inhabits rocky reefs, coral reefs, and rubble areas. Prefers areas with plenty of crevices, caves, and overhangs for shelter and ambush points. Juveniles may be found in shallower, more protected areas.
- Areale geografico
- Widespread in the Indo-Pacific region, from the east coast of Africa, including the Red Sea, across to the Western Pacific, north to southern Japan, and south to Australia.
Informazioni sull'acquario
- Livello di cura: intermediate
- Temperamento: semi-aggressive
- Dieta: carnivore
- Dimensione minima della vasca: 180 gallons
- Temperatura: 24-28°C (75-82°F)
- Livello di pH: 8.1-8.4
- Durezza: 8-12 dKH
- Compatibilità: Best kept with larger, robust tank mates. Avoid small fish or invertebrates as they will be prey. Can be aggressive towards conspecifics unless in a very large tank with ample hiding spots.
- Requisiti speciali: Requires ample rockwork for hiding and establishing territories. A varied diet of meaty foods is essential. Good filtration is necessary due to its predatory nature and waste production.
Informazioni in natura
- Stato di conservazione: least concern
- Stagionalità: No specific seasonal patterns for availability; fished year-round in its range.
- Prezzo di mercato: Variable, generally moderate
- Importanza commerciale: medium
- Sapore: Mild, firm white flesh
- Consistenza: Flaky, moist
- Metodi di cottura: steaming, baking, frying, grilling
- Valore nutrizionale: Good source of lean protein, omega-3 fatty acids, and essential minerals.
Fatti chiave
Ambush Predatorbehavior
Cephalopholis boenak is a classic ambush predator, often seen lurking in crevices or under ledges, waiting for unsuspecting prey to pass by.
Protogynous Hermaphroditeevolution
Like many groupers, C. boenak is a protogynous hermaphrodite, meaning individuals mature as females and later can change sex to male.
Territorial Naturebehavior
This species is known to be quite territorial, especially towards conspecifics, defending its chosen shelter and hunting grounds.
Dietary Generalistbehavior
While primarily piscivorous, its diet also includes a variety of crustaceans, making it a somewhat generalist predator within its reef habitat.
Informazioni di sicurezza
Maneggiare con cura- Livello di sicurezza: caution
- Velenoso: No
- Commestibilità: edible
- Note sul maneggio: While not venomous, like all groupers, Cephalopholis boenak possesses sharp dorsal fin spines and a powerful bite. Handle with care to avoid punctures or bites. Anglers should use appropriate tools for hook removal.
Specie simili
Sixbar Grouper
Cephalopholis sexmaculata
C. sexmaculata has 6 distinct dark bars and often displays small dark spots on the head and body, which C. boenak lacks. C. sexmaculata also grows significantly larger.
Coral Grouper
Cephalopholis miniata
C. miniata is typically bright orange-red with numerous small blue spots, lacking the distinct vertical banding of C. boenak. It also has a more pointed snout.
Bluelined Hind
Cephalopholis argus
C. argus is dark brown with numerous small blue spots, each surrounded by a darker ring, and lacks the prominent vertical bands of C. boenak.
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Perciformes
- Famiglia
- Serranidae
- Genere
- Cephalopholis
- Specie
- boenak
Esplora Brown-banded Rockcod
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