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The Bocaccio (Sebastes paucispinis) is a large, commercially important rockfish species found in the northeastern Pacific Ocean. It is characterized by its elongated body, large mouth, and typically reddish-brown to olive-brown coloration. This species is a significant component of both commercial and recreational fisheries along the West Coast of North America.
Caratteristiche fisiche
- Forma del corpo
- elongated
- Colorazione
- Adults are typically olive-brown to reddish-brown on the dorsal surface, fading to pinkish or reddish-white on the ventral side. Juveniles are often lighter, with a more pronounced reddish hue and sometimes mottled patterns. Fins are usually reddish.
- Tipo di squame
- ctenoid
- Posizione della bocca
- superior
- Caratteristiche distintive
- Large, upturned mouth with a projecting lower jaw (prognathous)., Relatively few spines on the head compared to other rockfish species., Elongated body, more slender than many other rockfish., Absence of strong spines on the operculum (gill cover).
- Pinna dorsale
- Single, deeply notched dorsal fin with 13-15 spines and 13-15 soft rays. The spinous portion is longer than the soft-rayed portion.
- Pinna caudale
- Moderately forked caudal fin.
- Pinna pettorale
- Long and pointed pectoral fins, reaching beyond the anus in adults.
- Pinne distintive
- Anal fin with 3 spines and 8-10 soft rays. Pelvic fins are thoracic.
Consigli per l'identificazione
Mouth
Look for the very large, upturned mouth with a prominent lower jaw that projects beyond the upper jaw. This is a key distinguishing feature.
Body Shape
Note the elongated, slender body compared to the more robust, deeper-bodied appearance of many other rockfish species.
Head Spines
Observe the head for a relative lack of strong spines. While some rockfish are heavily armored, Bocaccio has a smoother head profile.
Coloration
The reddish-brown to olive-brown dorsal coloration fading to pinkish-white ventrally is characteristic, especially in adults.
Habitat
- Tipo di acqua
- saltwater
- Profondità
- Typically found at depths ranging from 50 to 475 meters (164 to 1,558 feet), though juveniles can be found in shallower waters (down to 20 meters).
- Ambiente
- Associated with rocky reefs, pinnacles, and submarine canyons. Adults often form schools over hard bottoms, while juveniles may inhabit kelp forests or shallower rocky areas.
- Areale geografico
- Northeastern Pacific Ocean, from Baja California, Mexico, north to Kodiak Island, Alaska. Most abundant off the coasts of California and Oregon.
Informazioni sull'acquario
- Livello di cura: expert
- Temperamento: aggressive
- Dieta: carnivore
- Dimensione minima della vasca: Not suitable for typical home aquaria due to size and specialized needs. Requires very large, specialized public aquarium exhibits.
- Temperatura: 8-15°C (46-59°F)
- Livello di pH: 7.8-8.4
- Durezza: High (marine salinity)
- Compatibilità: Not compatible with most other fish due to predatory nature. Best kept in species-specific exhibits or with very large, robust, and fast-moving species.
- Requisiti speciali: Requires extremely large tanks with significant filtration and chilling capabilities. Mimicking deep-water, rocky habitats is crucial. Not recommended for private aquarists.
Informazioni in natura
- Stato di conservazione: near threatened
- Stagionalità: Available year-round, but fishing seasons and quotas are regulated to manage stock levels, particularly off the U.S. West Coast.
- Prezzo di mercato: Varies significantly by region and season, but generally commands a good price due to its size and flesh quality.
- Importanza commerciale: high
- Sapore: Mild, slightly sweet
- Consistenza: Firm, flaky, white flesh
- Metodi di cottura: Baking, Grilling, Frying, Steaming, Sautéing
- Valore nutrizionale: Good source of lean protein and omega-3 fatty acids.
Fatti chiave
Long-Lived Speciesinteresting
Bocaccio are known to be long-lived, with individuals recorded living over 50 years. This slow growth and late maturity make them particularly vulnerable to overfishing.
Viviparous Reproductionbehavior
Like all rockfish, Bocaccio are viviparous, meaning they give birth to live young (larvae) rather than laying eggs. Females can release hundreds of thousands to millions of larvae in a single spawning event.
Voracious Predatorbehavior
The name 'Bocaccio' is derived from an Italian word meaning 'big mouth,' a fitting description for this voracious predator that primarily feeds on other fish and cephalopods.
Depth Migrationsbehavior
Juvenile Bocaccio often inhabit shallower waters, including kelp forests, before migrating to deeper, offshore habitats as they mature.
Informazioni di sicurezza
Maneggiare con cura- Livello di sicurezza: caution
- Velenoso: Sì
- Commestibilità: edible
- Note sul maneggio: Like all rockfish (genus Sebastes), Bocaccio possess venomous spines in their dorsal, anal, and pelvic fins. Punctures can cause significant pain, swelling, and in some cases, infection. Handle with extreme care, using gloves and appropriate tools (e.g., fish grippers, dehookers) to avoid direct contact with spines. If stung, clean the wound thoroughly and immerse the affected area in hot water (as hot as can be tolerated without burning) for 30-90 minutes to denature the protein-based venom. Seek medical attention if symptoms are severe or persist.
Specie simili
Chilipepper Rockfish
Sebastes goodei
Chilipepper rockfish have a more slender body and a smaller mouth that does not extend past the eye. Their coloration is typically a more uniform reddish-orange to pink, often with a faint lateral stripe.
Yellowtail Rockfish
Sebastes flavidus
Yellowtail rockfish have a more compressed body, a smaller mouth, and a distinctive yellow caudal fin (tail). Their overall coloration is typically olive-brown to dark gray, often with mottling.
Vermilion Rockfish
Sebastes miniatus
Vermilion rockfish are typically a brighter red-orange, often with mottled patterns. They have a more robust body and a smaller mouth than the Bocaccio. Their lower jaw does not project as prominently.
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Scorpaeniformes
- Famiglia
- Sebastidae
- Genere
- Sebastes
- Specie
- S. paucispinis
Esplora Bocaccio
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