Achirus Lineatus (Lined Sole)

About: Achirus Lineatus

Lined Sole (Achirus lineatus): An In-Depth Guide

The Lined Sole, scientifically known as Achirus lineatus, is a fascinating species of flatfish that inhabits coastal waters and estuaries in the western Atlantic. This species is known for its unique morphology and behavior, making it a subject of interest for both anglers and marine biologists. This article provides a comprehensive overview of the Lined Sole, covering its full classification, distribution, morphology, habitat, climate zone, depth range, distribution range, and the best methods for catching this species.

Full Classification

• Kingdom: Animalia
• Phylum: Chordata
• Class: Actinopterygii
• Order: Pleuronectiformes
• Family: Achiridae
• Genus: Achirus
• Species: Achirus lineatus

Distribution

The Lined Sole is found in the western Atlantic Ocean, from the Gulf of Mexico to the northern coast of South America. Its range extends along the Atlantic coast from North Carolina, USA, down to Brazil, including the Caribbean Sea.

Morphology

The Lined Sole is characterized by its flattened, oval-shaped body, which allows it to blend seamlessly with the sandy or muddy ocean floor. The body is covered with small, rough scales and displays a distinctive pattern of dark lines running horizontally along its length. This pattern provides excellent camouflage against the substrate. The eyes are located on the right side of the body, typical of many flatfish species, while the left side is pale and featureless. Adult Lined Soles typically reach lengths of 12 to 15 cm, though they can grow up to 20 cm.

Habitat

Lined Soles are benthic creatures, meaning they live on the bottom of the ocean. They inhabit shallow coastal waters, estuaries, and lagoons with sandy or muddy substrates. These environments offer plenty of food sources and protection from predators. Lined Soles are often found partially buried in the substrate, where they lie in wait for prey.

Climate Zone

The Lined Sole thrives in tropical and subtropical waters. They prefer warm temperatures, which are typical of their distribution range from the Gulf of Mexico to northern South America.

Depth Range

Lined Soles are typically found in shallow waters, ranging from just a few meters deep up to about 50 meters. They are most commonly encountered at depths of 5 to 20 meters, where they can easily blend with the bottom sediments.

Distribution Range

The Lined Sole’s distribution extends along the western Atlantic coast, from North Carolina in the USA, through the Gulf of Mexico, and down to the northern coast of South America, including the Caribbean islands. They are prevalent in estuarine environments and coastal lagoons within this range.

Tackle, Baits, and Best Methods to Catch Lined Sole

• Tackle
  • When targeting Lined Sole, light to medium tackle is recommended. A spinning rod and reel combo rated for 6 to 12-pound test line is suitable for this species. Given their benthic nature, a sensitive rod that can detect subtle bites is advantageous. A fluorocarbon leader can help reduce visibility and increase bite rates.
• Baits
  • Lined Soles are opportunistic feeders with a diet consisting mainly of small invertebrates. Effective baits include:
    • Live Bait: Small shrimp, worms, and small baitfish are highly effective.
    • Dead Bait: Cut pieces of shrimp, squid, or fish can also attract Lined Sole.
    • Artificial Baits: Soft plastic lures that mimic small crustaceans or worms can be productive, especially when fished near the bottom.
• Best Methods
  • Bottom Fishing: Using a bottom rig with live or cut bait is one of the most effective methods. A simple rig with a sinker to keep the bait near the bottom and a short leader to the hook works well.
  • Drift Fishing: Drifting over sandy or muddy areas with a bottom rig can help cover more ground and locate active fish. Adjust the weight of the sinker to maintain contact with the bottom.
  • Slow Retrieval: When using artificial lures, a slow retrieval with occasional pauses can mimic the natural movement of prey and entice a strike from a Lined Sole.
  • Still Fishing: Anchoring in an area known to hold Lined Sole and fishing with live or dead bait near the bottom can be highly effective, especially during tidal movements when these fish are more active.

Conclusion

The Lined Sole (Achirus lineatus) is a unique and interesting species that inhabits the warm coastal waters of the western Atlantic. Understanding its classification, distribution, morphology, and habitat can greatly enhance your fishing experience. Whether you’re using live bait, cut bait, or artificial lures, targeting Lined Sole offers a rewarding challenge for anglers. With the right tackle and techniques, you can successfully catch this well-camouflaged bottom-dweller and appreciate its role in the marine ecosystem.