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The Panamic Porkfish (Anisotremus taeniatus) is a species of grunt belonging to the family Haemulidae. It is characterized by its distinctive coloration and body shape, making it a recognizable inhabitant of Eastern Pacific reefs. Like other grunts, it produces a grunting sound by grinding its pharyngeal teeth, amplified by the swim bladder.
Physical Characteristics
- Body shape
- compressed
- Coloration
- Adults typically have a silvery-white to yellowish body with two prominent, broad, dark brown to black horizontal stripes. The upper stripe runs from the snout through the eye to the caudal peduncle, and the lower stripe runs from below the eye to the base of the caudal fin. Fins are generally yellowish. Juveniles exhibit more pronounced dark stripes and often have a black spot at the base of the caudal fin and another on the dorsal fin.
- Scale type
- ctenoid
- Mouth position
- terminal
- Distinctive features
- Two prominent dark horizontal stripes on a light body, Thick, fleshy lips, Deeply notched dorsal fin, Large scales
- Dorsal fin
- Single dorsal fin, deeply notched, with 12-13 spines and 16-18 soft rays. The spiny portion is longer than the soft-rayed portion.
- Tail fin
- Moderately forked caudal fin.
- Pectoral fin
- Long and pointed pectoral fins.
- Distinctive fins
- Pelvic fins are thoracic, located directly below the pectoral fins.
Identification Tips
Coloration and Stripes
Look for the two distinct, broad, dark horizontal stripes on a light body. This is the most reliable field mark for adults.
Body Shape
Observe the compressed, deep body typical of grunts, with a relatively small head and thick lips.
Fin Structure
Note the deeply notched dorsal fin with a prominent spiny anterior portion.
Juvenile Markings
Juveniles often have more intense striping and may display a black spot at the caudal fin base and on the dorsal fin, which fade with age.
Habitat
- Water type
- saltwater
- Depth
- Typically found in depths ranging from 3 to 30 meters (10 to 100 feet), occasionally deeper.
- Environment
- Inhabits rocky reefs, coral reefs, and sandy areas adjacent to reefs. Juveniles are often found in shallower, protected areas such as mangroves and seagrass beds.
- Geographic range
- Eastern Pacific Ocean, from the Gulf of California (Baja California Sur, Mexico) south to Peru, including the Revillagigedo Islands, Cocos Island, and the Galapagos Islands.
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 semi-aggressive to aggressive fish of similar size. Not suitable for reef tanks due to predation on invertebrates. May be aggressive towards conspecifics unless in a very large tank with ample hiding spots.
- Special requirements: Requires a large tank with plenty of live rock for hiding and foraging. A varied diet of meaty foods is essential. Good filtration is necessary due to their messy eating habits. Can be prone to ich if stressed.
Wild Information
- Conservation status: least concern
- Seasonality: No specific seasonal patterns for availability; present year-round within its range.
- Market price: Low
- Commercial importance: low
- Taste: Mild, white flesh
- Texture: Flaky, firm
- Cooking methods: Frying, Baking, Grilling, Steaming
- Nutritional value: Good source of protein and omega-3 fatty acids.
Key Facts
Nocturnal Foragersbehavior
Panamic Porkfish are primarily nocturnal feeders, emerging from their daytime hiding spots to forage for benthic invertebrates.
Grunt Soundinteresting
Like other grunts, Anisotremus taeniatus can produce a characteristic 'grunting' sound by grinding their pharyngeal teeth, which is amplified by their swim bladder. This sound is often associated with distress or communication.
Cleaner Fish Interactionbehavior
Juvenile Panamic Porkfish are known to act as cleaner fish, removing ectoparasites from larger fish species.
Taxonomic Stabilityinteresting
The taxonomy of Anisotremus taeniatus has been relatively stable, with no major recent taxonomic changes or widely accepted synonyms beyond its original description.
Safety Information
Safe- Safety level: safe
- Venomous: No
- Edibility: edible
- Handling notes: No specific handling precautions beyond standard fish handling. Spines can be sharp, so care should be taken to avoid punctures.
Similar Species
Porkfish
Anisotremus virginicus
A. virginicus (Atlantic species) has yellow and silver stripes, with two prominent black bars on the head and anterior body, rather than the two continuous horizontal stripes of A. taeniatus. The body shape is also generally deeper and more rounded in A. virginicus.
Mexican Porkfish
Anisotremus davidsonii
A. davidsonii has a single, broad, dark diagonal bar running from the dorsal fin to the pectoral fin, and a dark spot on the caudal peduncle, lacking the two distinct horizontal stripes of A. taeniatus.
Black Margate
Anisotremus surinamensis
A. surinamensis is typically silvery-grey with a large, diffuse black blotch on the upper flank, and lacks the distinct horizontal stripes of A. taeniatus.
Scientific Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Perciformes
- Family
- Haemulidae
- Genus
- Anisotremus
- Species
- taeniatus
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