How to Identify Dab

To identify Dab (Limanda limanda), look at these key features.

Physical Characteristics

Body shape

flat

Coloration

Dorsal side is typically light to dark brown, often mottled with darker spots and blotches, providing excellent camouflage against sandy or muddy substrates. The ventral side is white. Some individuals may exhibit yellowish or reddish tints, particularly on the fins.

Scale type

ctenoid

Mouth position

subterminal

Distinctive features

Rough, sandpaper-like skin due to ctenoid scales on the eyed side., Strongly arched lateral line above the pectoral fin., Small, upward-pointing mouth., Eyes are typically on the right side of the head (dextral)., Often has a distinct dark spot at the base of the caudal fin.

Dorsal fin

Long, extending from just behind the eye to the caudal peduncle, with 65-81 soft rays.

Tail fin

Rounded or slightly truncate, with a distinct dark spot often present at its base.

Pectoral fin

Relatively small, located just behind the operculum.

Distinctive fins

Anal fin is also long, with 53-67 soft rays, mirroring the dorsal fin. Pelvic fins are small and located anterior to the pectoral fins.

Identification Tips

1. 1

   Skin Texture

   Run your hand from tail to head on the eyed side; it will feel distinctly rough, like sandpaper, due to the ctenoid scales. This is a key differentiator from other smooth-skinned flatfish.

2. 2

   Lateral Line

   Observe the lateral line above the pectoral fin; it forms a distinct, high arch, which is a reliable identification feature.

3. 3

   Caudal Fin Spot

   Look for a dark spot, often quite prominent, at the base of the caudal (tail) fin. While not always present or distinct, it's a common characteristic.

4. 4

   Mouth Size and Position

   The mouth is relatively small and points slightly upwards, indicating its feeding habit on small benthic invertebrates.

5. 5

   Eye Position

   Confirm that both eyes are on the right side of the head, characteristic of right-eyed flatfish.

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