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The Malabar Trevally (Carangoides malabaricus) is a species of large marine fish in the jack family Carangidae. It is a common inhabitant of tropical and subtropical waters of the Indo-Pacific region, ranging from South Africa to Japan and Australia. This species is characterized by its deep, compressed body, silvery coloration, and distinctive dark spot on the operculum. It is an active pelagic predator, feeding on a variety of smaller fish and crustaceans. While not a primary target for commercial fisheries, it is often caught as bycatch and is a popular sport fish in some regions. Its flesh is considered good quality.
Physical Characteristics
- Body shape
- compressed
- Coloration
- Generally silvery-grey to silvery-white on the flanks and belly, with a darker bluish-green to greenish-grey dorsal surface. Juveniles may have faint vertical bands. A prominent dark spot is present on the upper operculum. Fins are typically hyaline to dusky, sometimes yellowish.
- Scale type
- ctenoid
- Mouth position
- terminal
- Distinctive features
- Deeply compressed, ovate body profile., Prominent dark spot on the upper operculum (gill cover)., Lateral line with a moderately long anterior arch and a straight posterior section, containing 20-32 scutes (bony plates) on the straight part., Snout is relatively blunt., Adipose eyelid well developed, covering most of the eye.
- Dorsal fin
- Two dorsal fins; the first with 8 spines, the second with 1 spine and 20-23 soft rays. The anterior rays of the second dorsal fin are elongated.
- Tail fin
- Deeply forked caudal fin.
- Pectoral fin
- Long and falcate (sickle-shaped), extending beyond the origin of the anal fin.
- Distinctive fins
- Anal fin with 2 detached spines followed by 1 spine and 17-19 soft rays. The anterior rays of the anal fin are also elongated.
Identification Tips
Opercular Spot
Look for a distinct, dark spot on the upper part of the gill cover. This is a key diagnostic feature.
Body Shape
Observe the deep, compressed, and ovate body. It is noticeably deeper than many other Carangoides species.
Lateral Line Scutes
Count the scutes on the straight posterior section of the lateral line (20-32). This helps differentiate it from similar species.
Elongated Fin Rays
Note the elongated anterior rays of both the second dorsal and anal fins.
Habitat
- Water type
- saltwater
- Depth
- Typically found in depths ranging from 10 to 90 meters, but can occur shallower or deeper.
- Environment
- Inhabits coastal waters, often associated with coral reefs, rocky bottoms, and sandy substrates. Also found in estuaries and nearshore areas, particularly juveniles. Forms schools, especially when young.
- Geographic range
- Indo-Pacific region, from the east coast of Africa (including Madagascar and the Red Sea) across to Southeast Asia, northern Australia, and north to Japan. Its range extends eastward to some Pacific islands.
Aquarium Information
- Care level: expert
- Temperament: aggressive
- Diet: carnivore
- Minimum tank size: 1000 gallons
- Temperature: 24-28°C (75-82°F)
- pH level: 8.1-8.4
- Hardness: 8-12 dKH
- Compatibility: Not suitable for typical home aquariums due to its large size and predatory nature. Can be kept with other large, robust fish in very large public aquariums.
- Special requirements: Requires an extremely large tank with strong filtration and ample swimming space. A diet of fresh, high-quality marine fish and crustaceans is essential. Not recommended for the average aquarist.
Wild Information
- Conservation status: least concern
- Seasonality: Available year-round in most parts of its range, though local abundance may vary with seasonal migrations and spawning patterns.
- Market price: Variable, generally moderate
- Commercial importance: medium
- Taste: Mild, slightly sweet
- Texture: Firm, flaky
- Cooking methods: Grilling, Frying, Baking, Steaming, Curries
- Nutritional value: Good source of protein, omega-3 fatty acids, and essential vitamins and minerals.
Key Facts
Wide Distributioninteresting
The Malabar Trevally has one of the widest distributions among the Carangoides species, spanning a vast area of the Indo-Pacific.
Dietary Shiftbehavior
Juvenile Malabar Trevally primarily feed on zooplankton and small invertebrates, shifting to a piscivorous diet as they mature.
Schooling Behaviorbehavior
Young Malabar Trevally often form schools for protection and more efficient foraging, while larger adults may be more solitary or found in smaller groups.
Taxonomic Stabilityinteresting
The species Carangoides malabaricus has a relatively stable taxonomic history with few major recent changes or widely accepted synonyms, making its identification straightforward.
Safety Information
Safe- Safety level: safe
- Venomous: No
- Edibility: edible
- Handling notes: No specific venomous spines. Handle with care due to sharp fin rays and strong body. Standard fish handling precautions apply.
Similar Species
Yellowfin Trevally
Carangoides ferdau
Lacks the prominent dark opercular spot. Generally has a more yellowish coloration on fins, especially the caudal fin. Has fewer scutes on the lateral line (15-23).
Bluefin Trevally
Caranx melampygus
Distinguished by its bright blue fins and numerous small blue spots on the body. Body is generally more robust and less compressed. Lacks the opercular spot.
Giant Trevally
Caranx ignobilis
Much larger and more robust body. Lacks the opercular spot. Has a steeper head profile and a more silvery-grey to blackish coloration, especially in larger individuals.
Scientific Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Carangiformes
- Family
- Carangidae
- Genus
- Carangoides
- Species
- malabaricus
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