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Ctenochaetus strigosus, commonly known as the Kole Tang or Yelloweye Tang, is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes, and tangs. It is a detritivore, playing a crucial role in reef ecosystems by grazing on detritus and microalgae. This species is highly valued in the aquarium trade due to its attractive coloration and beneficial grazing habits.
Ciri-ciri Fizikal
- Bentuk badan
- compressed
- Warna
- The body coloration is typically a mottled brown to dark brown, often with numerous fine, pale blue to yellow spots or lines that can vary in intensity. A prominent feature is the bright yellow ring around the eye, which gives it the common name 'Yelloweye Tang'. The fins are generally dark, matching the body, but can have subtle blue or yellow margins. Juveniles often exhibit a more vibrant yellow body with blue spots.
- Jenis sisik
- ctenoid
- Kedudukan mulut
- inferior
- Ciri tersendiri
- Bright yellow ring around the eye, Numerous small, bristle-like teeth used for scraping algae and detritus, Scalpel-like spine on each side of the caudal peduncle, Mottled brown body with fine spots or lines
- Sirip dorsal
- Dorsal fin with 8 spines and 25-28 soft rays, continuous and relatively long.
- Sirip ekor
- Lunate (crescent-shaped) caudal fin.
- Sirip pektoral
- Pectoral fins are moderately sized, with 15-17 rays.
- Sirip tersendiri
- Anal fin with 3 spines and 21-24 soft rays. Pelvic fins with 1 spine and 3 soft rays. The caudal peduncle bears a single, sharp, retractable scalpel on each side.
Petua Pengenalan
Eye Ring
The most distinguishing feature is the prominent bright yellow ring encircling the eye.
Body Coloration and Pattern
Look for a mottled brown body covered with numerous small, pale blue to yellow spots or lines. The intensity of these markings can vary.
Mouth and Teeth
Observe its downward-pointing mouth with numerous bristle-like teeth, characteristic of Ctenochaetus species, used for scraping.
Caudal Peduncle Spine
Like all surgeonfishes, it possesses a sharp, retractable scalpel on each side of the caudal peduncle, though it may be less conspicuous than in some other tangs.
Habitat
- Jenis air
- saltwater
- Kedalaman
- Typically found in depths ranging from 1 to 113 meters (3 to 370 feet), but most commonly observed in shallower reef environments.
- Persekitaran
- Inhabits coral reefs, rocky areas, and rubble zones. Prefers areas with abundant algal growth and detritus for grazing. Often found in lagoons, seaward reefs, and channels.
- Julat geografi
- Indo-Pacific region, including the Hawaiian Islands, Johnston Atoll, Ryukyu Islands, Mariana Islands, Marshall Islands, Kiribati, Tuvalu, Samoa, and the Society Islands. Its range extends from the western Pacific to the central Pacific.
Maklumat Akuarium
- Tahap penjagaan: intermediate
- Perangai: semi-aggressive
- Diet: herbivore
- Saiz tangki minimum: 70 gallons
- Suhu: 72-78°F (22-26°C)
- Tahap pH: 8.1-8.4
- Kekerasan air: 8-12 dKH
- Keserasian: Generally compatible with other peaceful to semi-aggressive marine fish. Can be aggressive towards other tangs, especially those of similar shape or size. Best kept as the sole Ctenochaetus species in a tank unless it is very large.
- Keperluan khas: Requires a well-established aquarium with ample live rock for grazing and hiding. Good water flow and pristine water quality are essential. A varied diet of high-quality marine algae, spirulina, and other herbivore preparations is crucial for long-term health. Supplementation with vitamin C can help prevent Lateral Line Erosion (LLE).
Maklumat Liar
- Status pemuliharaan: least concern
- Musim: No specific seasonal patterns for availability; present year-round within its range.
- Harga pasaran: Moderate to high, depending on size and availability.
- Kepentingan komersial: medium
- Rasa: Not commonly consumed due to small size and potential for ciguatera poisoning in some regions.
- Tekstur: N/A
- Nilai pemakanan: N/A
Fakta utama
Detritivore Specialistbehavior
The Kole Tang is a specialized detritivore, using its unique bristle-like teeth to scrape detritus and microalgae from rocks and sand, playing a vital role in reef cleaning.
Color Changeinteresting
Kole Tangs can exhibit significant color changes depending on their mood, stress levels, and time of day. They may appear darker or lighter, and their spots/lines can become more or less pronounced.
Hawaiian Endemic Subspeciesevolution
The population of Ctenochaetus strigosus found in the Hawaiian Islands is sometimes recognized as a distinct subspecies, Ctenochaetus strigosus strigosus, due to slight morphological differences.
Algae Control in Aquariumsamazing
Due to its diligent grazing habits, the Kole Tang is highly sought after by aquarists for its ability to help control nuisance algae in reef tanks.
Maklumat keselamatan
Kendalikan dengan berhati-hati- Tahap keselamatan: caution
- Berbisa: Tidak
- Kebolehmakanan: not recommended
- Nota pengendalian: Like all surgeonfishes, the Kole Tang possesses a sharp, scalpel-like spine on each side of its caudal peduncle. These spines are used for defense and can inflict painful cuts. Exercise caution when handling to avoid injury. While not venomous, secondary bacterial infections are possible from cuts.
Spesies serupa
Chevron Tang
Ctenochaetus hawaiiensis
Juveniles of C. hawaiiensis are bright orange with black chevron markings, while adults are dark brown with fine blue lines. C. strigosus juveniles are yellow with blue spots, and adults have a yellow eye ring and mottled brown body with spots/lines.
Twospot Bristletooth Tang
Ctenochaetus binotatus
C. binotatus typically has two small black spots at the base of the caudal fin and a more uniform brown body without the prominent yellow eye ring of C. strigosus.
Striated Bristletooth Tang
Ctenochaetus striatus
C. striatus has distinct horizontal blue or orange stripes on its body, whereas C. strigosus has spots or fine lines and the characteristic yellow eye ring.
Klasifikasi saintifik
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Acanthuriformes
- Keluarga
- Acanthuridae
- Genus
- Ctenochaetus
- Spesies
- strigosus
Terokai Kole Tang
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