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Rastrelliger kanagurta, commonly known as the Indian Mackerel, is a species of mackerel in the family Scombridae. It is a commercially important pelagic fish found in the Indo-Pacific region. This species is characterized by its streamlined body, typical of fast-swimming pelagic fish, and its distinctive coloration. It forms large schools, particularly during feeding and spawning aggregations, making it a significant target for fisheries. Its ecological role involves being a mid-trophic level predator, feeding on zooplankton, and serving as prey for larger marine predators.
Ciri Fisik
- Bentuk tubuh
- torpedo
- Warna
- Dorsal side metallic blue-green, fading to silvery-white on the flanks and belly. Often exhibits a series of narrow, dark longitudinal bands or spots along the upper body, particularly noticeable when fresh. A distinct black spot is usually present on the body near the lower margin of the pectoral fin.
- Jenis sisik
- cycloid
- Posisi mulut
- terminal
- Ciri khas
- Elongated, fusiform body, slightly compressed., Two widely separated dorsal fins., Five finlets behind the second dorsal fin and five finlets behind the anal fin., A distinct black spot on the body near the lower margin of the pectoral fin., Snout longer than the rest of the head., Maxilla extends to the anterior margin of the eye., Small, conical teeth in a single row on jaws.
- Sirip punggung
- Two dorsal fins; the first with 8-11 spines, the second with 12 soft rays followed by 5 finlets. The first dorsal fin originates above the pectoral fin base.
- Sirip ekor
- Deeply forked caudal fin, characteristic of fast-swimming fish.
- Sirip dada
- Relatively short, located high on the body.
- Sirip khas
- Presence of 5 dorsal and 5 anal finlets, a key characteristic of Scombridae. The first dorsal fin is distinctly separated from the second.
Tips Identifikasi
Body Shape
Look for the streamlined, torpedo-shaped body, slightly compressed laterally.
Coloration
Observe the metallic blue-green dorsal side and silvery-white belly. Note the presence of narrow dark longitudinal bands or spots on the upper body.
Black Spot
Crucially, identify the distinct black spot located on the body near the lower margin of the pectoral fin. This is a key diagnostic feature.
Finlets
Count the finlets: 5 behind the second dorsal fin and 5 behind the anal fin.
Snout Length
The snout is typically longer than the rest of the head, and the maxilla extends to the anterior margin of the eye.
Habitat
- Jenis air
- saltwater
- Kedalaman
- Typically found in coastal waters, from the surface down to about 80 meters (260 feet), but most commonly in the upper 20-30 meters.
- Lingkungan
- Pelagic-neritic, inhabiting coastal and offshore waters, often associated with continental shelves and islands. Forms large schools in open water.
- Sebaran geografis
- Indo-West Pacific: Red Sea and East Africa to Indonesia, Papua New Guinea, and Australia, north to China and Japan. Also found in the Mediterranean Sea, having entered via the Suez Canal (Lessepsian migrant).
Informasi Akuarium
- Tingkat perawatan: expert
- Temperamen: peaceful
- Pola makan: carnivore
- Ukuran akuarium minimum: Not suitable for home aquaria due to size, schooling behavior, and pelagic nature. Requires very large public aquarium setups (thousands of gallons).
- Suhu: 24-29°C (75-84°F)
- Tingkat pH: 8.1-8.4
- Kesadahan: 8-12 dKH
- Kompatibilitas: Only compatible with other large, fast-swimming pelagic species in very large, specialized public aquarium exhibits. Not suitable for mixed reef or community tanks.
- Kebutuhan khusus: Requires immense swimming space, strong water flow, and a constant supply of live or frozen planktonic and small nektonic prey. Highly susceptible to stress in confined environments. Specialized filtration and oxygenation systems are essential.
Informasi di Alam Liar
- Status konservasi: least concern
- Musim: Peak abundance and spawning seasons vary geographically, but generally, they are more abundant during warmer months. Spawning typically occurs in batches throughout the year in tropical waters, with peaks influenced by monsoon patterns and food availability.
- Harga pasar: Varies significantly by region and season, generally moderate to high due to demand.
- Nilai ekonomis: high
- Rasa: Rich, oily, and distinctively savory with a moderate fishy flavor.
- Tekstur: Firm, flaky, and moist when cooked.
- Metode memasak: Grilling, Frying, Baking, Steaming, Currying, Smoking
- Nilai gizi: Excellent source of Omega-3 fatty acids, protein, Vitamin D, and Vitamin B12.
Fakta kunci
Schooling Behaviorbehavior
Indian Mackerel are highly schooling fish, forming large aggregations that can number in the thousands, especially during feeding and spawning. This behavior is crucial for their survival against predators and for efficient foraging.
Filter Feederbehavior
Despite being a mackerel, Rastrelliger kanagurta primarily feeds on zooplankton and phytoplankton by filter-feeding, using its gill rakers to strain small organisms from the water. This contrasts with many other mackerel species that are more active piscivores.
Lessepsian Migrantevolution
Rastrelliger kanagurta is one of the successful Lessepsian migrants, meaning it has colonized the Mediterranean Sea from the Red Sea via the Suez Canal, establishing populations in a new geographic range.
Rapid Growthinteresting
This species exhibits relatively rapid growth, reaching marketable size within its first year, which contributes to its high commercial importance in many regions.
Cultural Significanceinteresting
In many Southeast Asian and South Asian countries, 'Ikan Kembung' is a staple food fish, deeply integrated into local cuisines and economies, often being one of the most affordable and nutritious protein sources.
Informasi keamanan
Aman- Tingkat keamanan: safe
- Berbisa: Tidak
- Kelayakan konsumsi: edible
- Catatan penanganan: No specific handling precautions beyond standard fish handling. Can be slippery due to mucus. No venomous spines. Care should be taken with sharp fin rays, as with any fish.
Spesies serupa
Short Mackerel
Rastrelliger brachysoma
R. brachysoma has a deeper body (body depth 3.7-4.3 times in fork length vs. 4.8-5.2 for R. kanagurta), a shorter snout, and the maxilla does not extend to the anterior margin of the eye. The black spot on the body is also less prominent or absent in R. brachysoma.
Island Mackerel
Rastrelliger faughni
R. faughni has a more slender body (body depth 5.2-6.4 times in fork length), a much longer and more pointed snout, and the maxilla extends beyond the anterior margin of the eye. The black spot is usually absent or very faint.
Klasifikasi ilmiah
- Kerajaan
- Animalia
- Filum
- Chordata
- Kelas
- Actinopterygii
- Ordo
- Scombriformes
- Famili
- Scombridae
- Genus
- Rastrelliger
- Spesies
- Rastrelliger kanagurta
Jelajahi Indian Mackerel
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