Striped Grunter

Handle with care

Pomadasys striatus

Also known as: Striped Javelin, Striped Sweetlips

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Description

The Striped Grunter (Pomadasys striatus) is a species of marine ray-finned fish belonging to the family Haemulidae, the grunts or sweetlips. It is characterized by its distinctive striped pattern and is a common inhabitant of coastal waters in the Indo-Pacific region. Like other grunts, it produces a grunting sound by grinding its pharyngeal teeth, which is amplified by the swim bladder.

Physical Characteristics

Body shape: compressed
Coloration: Silvery-grey to brownish-grey body with 6-8 prominent dark longitudinal stripes running from behind the head to the caudal fin base. Fins are typically dusky or yellowish. Juveniles may have more pronounced stripes and a darker overall coloration.
Scale type: ctenoid
Mouth position: terminal
Distinctive features: 6-8 dark longitudinal stripes on the body, Small mouth with thick lips, Two pores and a median groove on the chin, Large scales
Dorsal fin: Single dorsal fin with 12-13 spines and 13-15 soft rays, deeply notched between spinous and soft portions.
Tail fin: Slightly forked caudal fin.
Pectoral fin: Long and pointed pectoral fins.
Distinctive fins: Anal fin with 3 spines and 7-8 soft rays. Pelvic fins thoracic.

Identification Tips

Body Stripes

The most distinguishing feature is the presence of 6-8 dark, well-defined longitudinal stripes along the body. The number and clarity of these stripes are key.

Chin Pores

Examine the chin for two distinct pores and a median groove, characteristic of the Haemulidae family.

Dorsal Fin

Note the deeply notched dorsal fin, separating the spiny and soft-rayed portions.

Mouth Size

The relatively small mouth with thick lips is also a good indicator.

Habitat

Water type: saltwater
Depth: Typically found in shallow coastal waters, from 1 to 75 meters (3 to 246 feet), but most commonly in less than 30 meters.
Environment: Inhabits sandy or muddy bottoms, often near rocky reefs, estuaries, and seagrass beds. Juveniles are frequently found in shallower, protected areas like mangroves and estuaries.
Geographic range: Indo-West Pacific: Red Sea and East Africa to Samoa, north to southern Japan, south to Australia. Also reported from the Mediterranean Sea via the Suez Canal (Lessepsian migrant).

Aquarium Information

Care level: intermediate
Temperament: semi-aggressive
Diet: carnivore
Minimum tank size: 180 gallons (680 liters)
Temperature: 72-78°F (22-26°C)
pH level: 8.1-8.4
Hardness: 8-12 dKH
Compatibility: Can be kept with other large, semi-aggressive fish. Avoid keeping with very small or docile species. May be territorial towards conspecifics in smaller tanks.
Special requirements: Requires a large tank with plenty of swimming space and rockwork for hiding. Good filtration is essential due to their carnivorous diet. May eat smaller invertebrates.

Wild Information

Conservation status: least concern
Seasonality: Available year-round, but local abundance may vary with seasonal migrations and spawning patterns.
Market price: Moderate
Commercial importance: medium
Taste: Mild, slightly sweet
Texture: Firm, flaky white flesh
Cooking methods: baking, frying, grilling, steaming
Nutritional value: Good source of lean protein and omega-3 fatty acids.

Key Facts

Grunting Soundbehavior

Like all grunts (Haemulidae), the Striped Grunter can produce a distinctive grunting sound by grinding its pharyngeal teeth, which is amplified by its swim bladder. This sound is often heard when the fish is stressed or caught.

Lessepsian Migrantevolution

The Striped Grunter is one of many species that have migrated from the Red Sea into the Mediterranean Sea via the Suez Canal, a phenomenon known as Lessepsian migration, indicating its adaptability to new environments.

Nocturnal Foragerbehavior

While often seen during the day, Striped Grunters are primarily nocturnal feeders, emerging from their daytime shelters to forage for benthic invertebrates and small fish.

Safety Information

Handle with care

Safety level: caution
Venomous: No
Edibility: edible
Handling notes: The dorsal and anal fin spines can be sharp and cause painful punctures. Handle with care to avoid injury. No known venomous properties.

Similar Species

Silver Grunt

Pomadasys argenteus

P. argenteus typically lacks the prominent dark longitudinal stripes of P. striatus, having a more uniformly silvery body or faint, irregular markings. Its body is generally deeper.

Spotted Grunter

Pomadasys commersonnii

P. commersonnii is characterized by numerous small, dark spots scattered over its body, rather than distinct longitudinal stripes. It also tends to grow larger.

Lined Grunter

Pomadasys hasta

While P. hasta can have faint lines, they are usually less distinct and fewer in number than P. striatus. P. hasta often has a more elongated body shape and a slightly different fin count.

Scientific Classification

Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Haemulidae
Genus: Pomadasys
Species: striatus

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