Ada gambar? Kenal pasti ikan serta-merta dengan aplikasi Fishby.
Buka aplikasiPenerangan
Lutjanus erythropterus, commonly known as the Crimson Snapper or Jenahak, is a commercially important species of snapper found in the Indo-Pacific region. It is characterized by its distinctive reddish coloration and robust body. This species is highly valued in fisheries due to its excellent flesh quality.
Ciri-ciri Fizikal
- Bentuk badan
- compressed
- Warna
- Adults are typically reddish-pink to crimson dorsally, fading to a lighter pink or silvery-white ventrally. Fins are often reddish. Juveniles may have a series of faint, broad, reddish bars on the body and a prominent black spot below the anterior soft dorsal fin rays, which fades with age.
- Jenis sisik
- ctenoid
- Kedudukan mulut
- terminal
- Ciri tersendiri
- Deep body, typically 2.3-2.7 times in standard length., Large eyes, positioned high on the head., Snout profile is straight or slightly convex., Preorbital bone is broad, its width usually greater than the eye diameter., Vomerine tooth patch is anchor-shaped with a posterior extension., Absence of a deep groove from the eye to the nostril.
- Sirip dorsal
- Single dorsal fin with 10 spines and 13-14 soft rays. The spinous and soft-rayed portions are continuous, with a slight notch.
- Sirip ekor
- Caudal fin is emarginate (slightly forked) to truncate.
- Sirip pektoral
- Pectoral fins are relatively long, reaching to or beyond the anus, with 16-17 rays.
- Sirip tersendiri
- Anal fin has 3 spines and 8-9 soft rays. Pelvic fins are moderately long.
Petua Pengenalan
Coloration
Look for the overall reddish-pink to crimson body color. Juveniles may have faint bars and a black spot below the dorsal fin.
Body Shape
Note the relatively deep body and large eyes. The snout profile is typically straight.
Vomerine Teeth
If possible to examine, the anchor-shaped vomerine tooth patch with a posterior extension is a key diagnostic feature for the genus Lutjanus, and specifically for L. erythropterus, it helps differentiate from some similar species.
Fin Ray Counts
Counting the dorsal (10 spines, 13-14 soft rays) and anal (3 spines, 8-9 soft rays) fin rays can be definitive for species identification.
Habitat
- Jenis air
- saltwater
- Kedalaman
- Typically found at depths ranging from 10 to 100 meters, occasionally deeper to 120 meters.
- Persekitaran
- Inhabits offshore coral reefs, rocky bottoms, and sandy or muddy substrates, often near drop-offs or areas with rubble. Juveniles may be found in shallower, more protected areas.
- Julat geografi
- Indo-West Pacific: Red Sea and East Africa to Samoa, north to southern Japan, and south to northern Australia. Absent from the Persian Gulf.
Maklumat Akuarium
- Tahap penjagaan: expert
- Perangai: semi-aggressive
- Diet: carnivore
- Saiz tangki minimum: 1000 gallons
- Suhu: 24-28°C (75-82°F)
- Tahap pH: 8.1-8.4
- Kekerasan air: 8-12 dKH
- Keserasian: Best kept in very large, species-specific tanks or with other large, robust fish that can tolerate its semi-aggressive nature. Not suitable for typical home aquariums.
- Keperluan khas: Requires a very large tank with ample swimming space and strong filtration. A diet of high-quality meaty foods is essential. Can be territorial, especially as it matures.
Maklumat Liar
- Status pemuliharaan: least concern
- Musim: Available year-round, but peak seasons may vary regionally based on spawning aggregations and fishing regulations.
- Harga pasaran: High, varies by region and size
- Kepentingan komersial: high
- Rasa: Mild, sweet, and delicate
- Tekstur: Firm, flaky, and moist
- Kaedah memasak: Grilling, Baking, Steaming, Frying, Sashimi
- Nilai pemakanan: Excellent source of lean protein, Omega-3 fatty acids, and essential vitamins and minerals.
Fakta utama
Commercial Importancebehavior
Lutjanus erythropterus is one of the most economically important snapper species in the Indo-Pacific, highly sought after for its delicious flesh.
Sizerecord
This species can grow up to 80 cm (31 inches) in total length, though commonly caught specimens are around 30-50 cm (12-20 inches).
Dietbehavior
It is a predatory fish, feeding primarily on other fish, crustaceans (crabs, shrimp), and cephalopods (squid, octopus).
Spawning Aggregationsbehavior
Like many snappers, L. erythropterus forms spawning aggregations, which can make them vulnerable to overfishing during these periods.
Habitat Versatilitybehavior
While often associated with reefs, it can also be found over sandy and muddy bottoms, demonstrating adaptability in its habitat preferences.
Maklumat keselamatan
Selamat- Tahap keselamatan: safe
- Berbisa: Tidak
- Kebolehmakanan: edible
- Nota pengendalian: No specific venomous spines or toxic properties. Handle with care due to sharp fin spines and teeth, especially when de-hooking. Standard fish handling precautions apply.
Spesies serupa
Humpback Red Snapper
Lutjanus gibbus
L. gibbus has a more deeply forked caudal fin and typically a more pronounced hump on the forehead of larger individuals. Its coloration can be similar but often has a more purplish hue.
Red Emperor
Lutjanus sebae
L. sebae (Red Emperor) is distinctly different, especially as a juvenile, with three prominent broad red bands on a white or pinkish body. Adults are also reddish but retain some banding or blotching, and have a more pointed snout.
Malabar Blood Snapper
Lutjanus malabaricus
L. malabaricus has a similar body shape and coloration but typically has a more rounded caudal fin and often a darker blotch on the upper flank below the soft dorsal fin. The preorbital bone is narrower than the eye diameter in L. malabaricus, unlike L. erythropterus.
Klasifikasi saintifik
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Perciformes
- Keluarga
- Lutjanidae
- Genus
- Lutjanus
- Spesies
- Lutjanus erythropterus
Terokai Crimson Snapper
Kenal pasti ikan di mana sahaja
Percuma di iOS, Android dan Web. Pengenalan melalui gambar, butiran spesies yang lengkap, dan banyak lagi.