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Therapon jarbua, commonly known as the Jarbua Terapon, is a widespread and euryhaline species of ray-finned fish belonging to the family Terapontidae. It is characterized by its distinctive striped pattern and the presence of venomous spines. This species is highly adaptable, thriving in a variety of coastal and estuarine environments, and is known for its predatory feeding habits.
Ciri-ciri Fizikal
- Bentuk badan
- compressed
- Warna
- Silvery-grey to whitish body with three to four prominent, curved, dark brown to black longitudinal stripes on the upper half of the body. The stripes extend onto the caudal fin. A distinct black blotch is often present on the operculum.
- Jenis sisik
- ctenoid
- Kedudukan mulut
- terminal
- Ciri tersendiri
- Three to four curved, dark longitudinal stripes on the upper body., A prominent black blotch on the operculum., Spiny dorsal fin with venom glands at the base of the spines., Caudal fin with dark stripes extending from the body.
- Sirip dorsal
- Single dorsal fin, deeply notched, with 11-12 strong, venomous spines followed by 9-11 soft rays. The spiny portion is longer than the soft-rayed portion.
- Sirip ekor
- Slightly forked caudal fin, with the dark body stripes extending onto the lobes.
- Sirip pektoral
- Moderately sized, rounded pectoral fins.
- Sirip tersendiri
- Pelvic fins are thoracic, with one spine and five soft rays. Anal fin has 3 strong spines and 8-10 soft rays.
Petua Pengenalan
Body Stripes
Look for the characteristic three to four curved, dark brown to black stripes on the upper half of the body, which extend onto the caudal fin.
Opercular Spot
A prominent black blotch on the operculum (gill cover) is a key identifying feature.
Dorsal Fin
Note the deeply notched dorsal fin with a long spiny portion (11-12 spines) and a shorter soft-rayed portion (9-11 rays).
Size
Adults typically reach a maximum standard length of 36 cm, though commonly observed around 20-25 cm.
Habitat
- Jenis air
- brackish
- Kedalaman
- Typically found in shallow coastal waters, estuaries, and lower reaches of rivers, from the surface down to about 20 meters.
- Persekitaran
- Coastal waters, estuaries, mangrove areas, tidal creeks, lagoons, and occasionally freshwater rivers. Prefers sandy or muddy bottoms, often near seagrass beds or rocky areas. Highly euryhaline, tolerating a wide range of salinities.
- Julat geografi
- Indo-Pacific region, from the Red Sea and East Africa eastward to Samoa, and northward to southern Japan, southward to Australia. Also found in the Mediterranean Sea, having entered via the Suez Canal (Lessepsian migrant).
Maklumat Akuarium
- Tahap penjagaan: intermediate
- Perangai: semi-aggressive
- Diet: carnivore
- Saiz tangki minimum: 150 gallons (570 liters)
- Suhu: 22-28°C (72-82°F)
- Tahap pH: 7.5-8.5
- Kekerasan air: 10-25 dGH
- Keserasian: Best kept in a species-specific tank or with other large, robust, and semi-aggressive brackish or marine fish. Avoid keeping with smaller or docile species as they may be preyed upon.
- Keperluan khas: Requires a well-filtered tank with ample swimming space and hiding spots. A brackish to marine setup is essential. Due to its venomous spines, extreme caution must be exercised during handling and tank maintenance.
Maklumat Liar
- Status pemuliharaan: least concern
- Musim: Available year-round, with peak abundance often correlating with warmer months in some regions.
- Harga pasaran: Low to moderate
- Kepentingan komersial: medium
- Rasa: Mild, slightly sweet
- Tekstur: Firm, flaky
- Kaedah memasak: Frying, Grilling, Steaming, Curry
- Nilai pemakanan: Good source of protein and omega-3 fatty acids.
Fakta utama
Euryhaline Adaptabilitybehavior
Therapon jarbua is remarkably euryhaline, capable of tolerating a wide range of salinities from freshwater to hypersaline conditions, allowing it to inhabit diverse coastal and estuarine environments.
Venomous Spinesinteresting
This species possesses venom glands at the base of its dorsal, anal, and pelvic fin spines, which can deliver a painful sting if handled carelessly. This serves as a defense mechanism against predators.
Lessepsian Migrantevolution
The Jarbua Terapon is one of the most successful Lessepsian migrants, having colonized the Mediterranean Sea from the Red Sea via the Suez Canal, demonstrating its strong invasive potential.
Nocturnal Predatorbehavior
While often active during the day, Jarbua Terapons are known to be more active predators at night, using their keen senses to hunt smaller fish and invertebrates.
Sound Productionbehavior
Like other teraponids, Therapon jarbua can produce sounds, particularly during spawning or when stressed, by vibrating muscles against their swim bladder.
Maklumat keselamatan
Berbisa- Tahap keselamatan: venomous
- Berbisa: Ya
- Kebolehmakanan: edible
- Nota pengendalian: The Jarbua Terapon possesses venomous spines in its dorsal, anal, and pelvic fins. Punctures from these spines can cause intense pain, swelling, and localized inflammation. Handle with extreme caution, using thick gloves or a fish gripper. If stung, immerse the affected area in hot water (as hot as tolerable without scalding) to denature the protein-based venom, and seek medical attention if symptoms persist or worsen.
Spesies serupa
Small-scaled Terapon
Terapon puta
Terapon puta has straight, horizontal stripes that do not curve downwards, and typically lacks the prominent opercular blotch seen in T. jarbua. Its stripes are also generally thinner and more numerous.
Largescale Terapon
Terapon theraps
Terapon theraps has fewer (usually 3) and broader, straight longitudinal stripes. The stripes are typically darker and more distinct, and it also lacks the pronounced opercular blotch of T. jarbua. The body is generally deeper.
Klasifikasi saintifik
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Perciformes
- Keluarga
- Terapontidae
- Genus
- Therapon
- Spesies
- T. jarbua
Terokai Jarbua Terapon
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