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Siganus guttatus, commonly known as the Orange-spotted spinefoot or Baronang Bintik, is a species of rabbitfish found in the Indo-Pacific region. It is characterized by its distinctive coloration, featuring numerous small orange or golden spots on a brownish-green to bluish-grey body. This species is commercially important as a food fish and is also occasionally seen in the aquarium trade. Like other rabbitfish, it possesses venomous spines in its dorsal, anal, and pelvic fins.
Ciri Fisik
- Bentuk tubuh
- compressed
- Warna
- Body color ranges from brownish-green to bluish-grey, adorned with numerous small, distinct orange or golden spots covering the head, body, and fins. A prominent dark blotch, often saddle-shaped, is typically present below the posterior part of the dorsal fin, extending onto the caudal peduncle. The belly is usually paler. During fright or stress, the coloration can change rapidly, often displaying a mottled pattern.
- Jenis sisik
- cycloid
- Posisi mulut
- terminal
- Ciri khas
- Numerous small orange/golden spots covering the body and head., A dark, saddle-like blotch below the posterior dorsal fin., Venomous spines in dorsal, anal, and pelvic fins., Small, rabbit-like mouth.
- Sirip punggung
- 13 spines, 10 soft rays. The spines are venomous.
- Sirip ekor
- Slightly forked to emarginate.
- Sirip dada
- 16-18 rays.
- Sirip khas
- Pelvic fins have 2 spines and 3 soft rays (I,3,I), a characteristic feature of the family Siganidae. All fin spines are grooved and contain venom glands.
Tips Identifikasi
Body Spots
Look for the characteristic small, bright orange or golden spots covering the entire body, head, and fins. These spots are usually distinct and numerous.
Dark Blotch
Observe the dark, often saddle-shaped blotch located on the upper flank, below the posterior part of the dorsal fin and extending onto the caudal peduncle. This blotch can vary in intensity.
Fin Spines
Note the presence of strong, sharp spines in the dorsal, anal, and pelvic fins. The pelvic fins have a unique spine-ray-spine configuration (I,3,I) typical of rabbitfish.
Mouth
The mouth is small and terminal, adapted for grazing on algae.
Habitat
- Jenis air
- saltwater
- Kedalaman
- Typically found in shallow coastal waters, from the surface down to about 20 meters (65 feet), occasionally deeper to 50 meters (164 feet).
- Lingkungan
- Inhabits coral reefs, rocky reefs, seagrass beds, and mangrove areas. Juveniles often found in estuaries and mangrove forests, moving to reefs as they mature. Prefers areas with abundant algal growth for grazing.
- Sebaran geografis
- Indo-West Pacific: from the Andaman Sea and Nicobar Islands eastward to the Philippines, and from southern Japan southward to northern Australia. Common in Southeast Asian waters, including Indonesia, Malaysia, and Thailand.
Informasi Akuarium
- Tingkat perawatan: intermediate
- Temperamen: semi-aggressive
- Pola makan: herbivore
- Ukuran akuarium minimum: 180 gallons
- Suhu: 23-28°C (73-82°F)
- Tingkat pH: 8.1-8.4
- Kesadahan: 8-12 dKH
- Kompatibilitas: Can be kept with other robust, non-aggressive fish. May nip at corals and sessile invertebrates. Best kept singly or in a very large tank with other rabbitfish if introduced simultaneously.
- Kebutuhan khusus: Requires a well-established aquarium with ample live rock for grazing and hiding. A varied diet of marine algae, spirulina, and high-quality vegetable flakes/pellets is crucial. Good water quality and strong filtration are essential due to their herbivorous diet and waste production.
Informasi di Alam Liar
- Status konservasi: least concern
- Musim: Spawns year-round in tropical waters, with peak spawning often influenced by lunar cycles and local environmental conditions. Available year-round in fisheries.
- Harga pasar: Varies significantly by region and size, often considered a premium food fish.
- Nilai ekonomis: high
- Rasa: Mild, slightly sweet, and delicate.
- Tekstur: Firm, white, and flaky.
- Metode memasak: Grilling, Steaming, Frying, Baking, Soup
- Nilai gizi: Good source of lean protein and omega-3 fatty acids.
Fakta kunci
Venomous Spinesbehavior
All rabbitfish, including Siganus guttatus, possess venomous spines in their dorsal, anal, and pelvic fins, which are used for defense against predators.
Herbivorous Dietbehavior
Siganus guttatus is primarily herbivorous, grazing on benthic algae and seagrasses, playing an important role in controlling algal growth on reefs.
Nocturnal Color Changebehavior
Like many rabbitfish, Siganus guttatus can rapidly change its coloration, often adopting a mottled or blotchy pattern at night or when stressed, providing camouflage.
Schooling Behaviorbehavior
Juveniles and sub-adults often form large schools, while adults may be found singly or in pairs, especially during breeding season.
Commercial Importanceinteresting
This species is a significant food fish in many parts of its range, caught by various fishing methods including traps, nets, and hook-and-line.
Informasi keamanan
Berbisa- Tingkat keamanan: venomous
- Berbisa: Ya
- Kelayakan konsumsi: edible
- Catatan penanganan: All spines (dorsal, anal, and pelvic) of Siganus guttatus are venomous. Punctures can cause intense pain, swelling, and inflammation, which may last for several hours. In some cases, systemic symptoms like nausea, dizziness, and muscle weakness can occur. When handling, extreme caution is advised. Use thick gloves or a towel to avoid direct contact with the spines. If stung, immerse the affected area in hot water (as hot as can be tolerated, typically 45-50°C or 113-122°F) for 30-90 minutes to denature the protein-based venom. Seek medical attention if symptoms are severe or persistent.
Spesies serupa
Gold-lined Spinefoot
Siganus lineatus
Siganus lineatus has distinct horizontal golden lines along its body, rather than spots. It also typically has a prominent yellow spot below the soft-rayed portion of the dorsal fin, which S. guttatus lacks.
Blue-spotted Spinefoot
Siganus corallinus
Siganus corallinus is characterized by numerous small blue spots on an orange-yellow body, contrasting with the orange/golden spots on a brownish-green/bluish-grey body of S. guttatus.
Stellate Rabbitfish
Siganus stellatus
Siganus stellatus has numerous small, dark spots (often black or dark brown) on a pale background, giving it a 'starry' appearance, distinct from the orange spots of S. guttatus.
Klasifikasi ilmiah
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Acanthuriformes
- Famili
- Siganidae
- Genus
- Siganus
- Spesies
- Siganus guttatus
Jelajahi Baronang Bintik
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