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Seal Shark

Threat Level:  low

 

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  • SEAL SHARK

Scientific name............Dalatias Licha

Family name.................Dalatiidae

Other common names.......Kitefin shark and Black shark

 

  • GENERAL DESCRIPTION

The Seal shark is a medium-sized cylindrical brown to blackish shark with a short blunt snout, thick fringed lips. Spineless dorsal fins, first originates behind pectoral fin rear tips with base closer to pectoral than pelvic fin bases, second larger. Weak ventral caudal fin lobe. Posterior margins of most fins are translucent.

 

  • SIZE

This shark is born at a length of 11.8 inches and attains a maximum length of 5.2 feet. Females mature 3.9 feet and males mature at 3.2 feet.

 

  • COLOR

The color of Seal sharks are grayish, brown or brownish-black.

 

  • FEEDING HABITS

They feed mainly on deepwater fishes, may take bites out of large live prey, the young feed more on cephalopods.

 

  • BEHAVIOUR

This shark is thought to be a solitary species. Hovers above bottom ( large-filled liver provides neutral buoyancy )and swims well off the bottom.

 

  • HABITAT

Atlantic, Indian and Pacific Oceans. This species is a deep-water shark found mainly in warm-temperate and tropical outer continental and insular shelves and slopes, usually on or near bottom in depths from (121 to 5,905 feet ) mainly at 660 feet.

 

  • REPRODUCTION

Little is known of this sharks biology, they are ovoviviparous giving birth to 10 to 16 pups per litter.

 

  • SHARK ATTACKS

Unknown

 

  • POPULATION REPORT

Data Deficient. This shark has long been exploited commercially. Among products derived from it were or are: denticle-intact shin for use as "shagreen" for polishing in cabinet and jewellery making, fishmeal, leather ( considered excellent for the manufacture of "boroso", a durable, almost armor-like denticle-intact polished leather in Spain ), human consumption ( eastern Atlantic and Japan), and squalene oil ( Portugal and Japan ). May deplete populations rapidly.

 

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