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Epinephelus tukula, commonly known as the Potato Grouper or Garoupa-batata, is a large, robust species of marine ray-finned fish in the family Serranidae, which includes the groupers and sea basses. It is characterized by its distinctive blotchy coloration and impressive size, making it a prominent inhabitant of coral reefs and rocky bottoms across its Indo-Pacific range. This species is a top predator in its ecosystem, playing a crucial role in maintaining the balance of reef communities. It is highly sought after in commercial and recreational fisheries due to its large size and excellent flesh quality.
Características físicas
- Formato do corpo
- elongated
- Coloração
- Adults are typically pale grey to brownish-grey, covered with large, irregular, dark brown to black blotches that resemble potatoes, hence the common name. Juveniles may have more distinct, darker markings. The fins often have dark margins.
- Tipo de escama
- ctenoid
- Posição da boca
- terminal
- Características distintivas
- Large, irregular, dark brown to black blotches over a pale body., Robust body and large head., Large mouth with several rows of sharp, conical teeth., Rounded caudal fin., Dorsal fin with 11 spines and 14-16 soft rays., Anal fin with 3 spines and 8 soft rays., Pectoral fins with 18-19 rays.
- Nadadeira dorsal
- Single, continuous dorsal fin with 11 strong spines followed by 14-16 soft rays. The spiny and soft-rayed portions are deeply notched.
- Nadadeira caudal
- Rounded caudal fin.
- Nadadeira peitoral
- Large and rounded, typically with 18-19 rays.
- Nadadeiras características
- Pelvic fins are relatively short, originating below or slightly behind the pectoral fin base.
Dicas de identificação
Body Pattern
Look for the characteristic large, irregular, dark brown to black blotches resembling potatoes on a lighter background. This is the most distinguishing feature.
Size and Shape
This is a very large, robust grouper with a deep body and a large head. Adults can reach up to 250 cm (8.2 ft) in length and weigh over 100 kg (220 lbs).
Fin Count
Count the dorsal fin spines (11) and soft rays (14-16), and anal fin spines (3) and soft rays (8) for confirmation, though coloration is usually sufficient.
Mouth
Observe the large mouth with a prominent lower jaw and numerous sharp teeth, indicative of its predatory nature.
Habitat
- Tipo de água
- saltwater
- Profundidade
- Typically found in depths ranging from 10 to 100 meters, occasionally deeper.
- Ambiente
- Associated with coral reefs, rocky outcrops, and offshore pinnacles. Prefers areas with caves, ledges, and crevices for shelter. Often found in clear, tropical and subtropical waters.
- Distribuição geográfica
- Indo-Pacific region, from the Red Sea and East Africa across to the western Pacific, including Australia, Japan, and various Pacific islands. Its range extends from South Africa north to the Red Sea, east to the Marshall Islands, and south to New South Wales, Australia.
Informações sobre aquário
- Nível de cuidado: expert
- Temperamento: aggressive
- Alimentação: carnivore
- Tamanho mínimo do aquário: 2000 gallons (7570 liters) for a juvenile, significantly larger for an adult
- Temperatura: 24-28°C (75-82°F)
- Nível de pH: 8.1-8.4
- Dureza da água: 8-12 dKH
- Compatibilidade: Only compatible with very large, equally aggressive fish. Not suitable for typical community aquariums. Will consume smaller tank mates.
- Requisitos especiais: Requires an extremely large aquarium with robust filtration and ample hiding spaces. Diet must consist of large, meaty foods. Not recommended for home aquariums due to its immense size and predatory nature.
Informações no ambiente natural
- Estado de conservação: near threatened
- Sazonalidade: Spawning aggregations are known to occur at specific times and locations, often targeted by fisheries. Availability in markets can vary seasonally based on fishing regulations and local abundance.
- Preço de mercado: High, varies significantly by region and size
- Importância comercial: high
- Sabor: Mild, firm, white flesh
- Textura: Flaky, moist
- Métodos de preparo: Grilled, Baked, Steamed, Fried, Sashimi
- Valor nutricional: Excellent source of lean protein, omega-3 fatty acids, and various vitamins and minerals.
Fatos principais
Size Recordrecord
Epinephelus tukula is one of the largest species of grouper, capable of reaching lengths of up to 2.5 meters (8.2 feet) and weights exceeding 100 kilograms (220 pounds).
Voracious Predatorbehavior
This species is an apex predator on coral reefs, feeding primarily on other fish, crustaceans, and cephalopods. It uses ambush tactics to capture its prey.
Longevityinteresting
Potato Groupers are known to be long-lived, with individuals potentially living for several decades, contributing to their vulnerability to overfishing.
Hermaphroditismevolution
Like many groupers, Epinephelus tukula is a protogynous hermaphrodite, meaning individuals typically mature as females and later transition to males.
Spawning Aggregationsbehavior
They form predictable spawning aggregations, which makes them particularly susceptible to targeted fishing pressure during these vulnerable periods.
Informações de segurança
Manusear com cuidado- Nível de segurança: caution
- Venenoso: Não
- Comestibilidade: edible
- Observações de manuseio: While not venomous, Garoupa-batata are large, powerful fish with sharp teeth. Extreme caution should be exercised when handling them to avoid bites or injuries from their strong thrashing. Anglers should use appropriate gear and techniques to ensure safety. Spines on the dorsal and anal fins are sharp and can cause painful punctures.
Espécies similares
Giant Grouper
Epinephelus lanceolatus
The Giant Grouper (E. lanceolatus) is generally darker, often with more uniform dark brown or black coloration, and lacks the distinct 'potato-like' blotches of E. tukula. E. lanceolatus also has a more rounded, robust body shape and can grow even larger.
Malabar Grouper
Epinephelus malabaricus
The Malabar Grouper (E. malabaricus) has a pattern of irregular dark spots and blotches, but these are typically smaller and more numerous than those of E. tukula, and often include smaller reddish-brown spots. Its body shape is also generally more slender.
Flowery Cod
Epinephelus fuscoguttatus
The Flowery Cod (E. fuscoguttatus) has numerous small, dark brown spots and blotches, often with a few larger, darker blotches along the lateral line. The spots are generally more defined and less 'potato-like' than those of E. tukula.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Perciformes
- Família
- Serranidae
- Gênero
- Epinephelus
- Espécie
- Epinephelus tukula
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