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The Coelacanth

The Coelacanth. Order: Coelacanthiformes Family: Latimeriidae. Why is the Coelacanth so popular?. Coelacanth Structure. Coelacanth Habits. Nocturnal, feed at night by drifting in currents above the bottom Aggregate and rest in caves (150-250m.) during the day. Sturgeons.

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The Coelacanth

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  1. The Coelacanth • Order: Coelacanthiformes • Family: Latimeriidae Coelacanth, Sturgeons and Tarpons

  2. Why is the Coelacanth so popular? Coelacanth, Sturgeons and Tarpons

  3. Coelacanth Structure Coelacanth, Sturgeons and Tarpons

  4. Coelacanth Habits • Nocturnal, feed at night by drifting in currents above the bottom • Aggregate and rest in caves (150-250m.) during the day Coelacanth, Sturgeons and Tarpons

  5. Sturgeons • Class Actinopterygii • Subclass Chondrostei • Family Acipenseridae • Species: • Shortnose Sturgeon (Acipenser brevirostrum) • Atlantic Sturgeon (Acipenser oxyrhynchus) Coelacanth, Sturgeons and Tarpons

  6. Sturgeon Characteristics • Cartilaginous skeleton, heterocercal caudal fin, and spiral valve intestine • 5 rows of bony scutes • Highly protrusible mouth, preceded with barbels Coelacanth, Sturgeons and Tarpons

  7. Sturgeon Habits • Benthic cruisers, using barbels and electrical organs in the snout to detect prey • Large size, slow growth, and long lived • Highly fecund Coelacanth, Sturgeons and Tarpons

  8. Prices Migrations • Anadromous species • Beluga Sturgeon (Huso huso) migrates 1,500 miles up the Danube and Volga rivers. (Russian Caviar) Coelacanth, Sturgeons and Tarpons

  9. Species of Concern • Shortnose Sturgeon (Acipenser brevirostrum) • Atlantic Sturgeon (Acipenser oxyrhynchus) Coelacanth, Sturgeons and Tarpons

  10. Tarpon and Ladyfish • Class Actinopterygii • Family Elopidae • Common species: • Tarpon (Megalops atlanticus) • Ladyfish (Elops saurus) Coelacanth, Sturgeons and Tarpons

  11. Elopidae Characteristics • Streamlined predators with large cycloid scales and deeply forked tails Elops saurus Coelacanth, Sturgeons and Tarpons

  12. Elopidae Characteristics • Found in shallow, marine water • Occasionally freshwater Megalops atlanticus Coelacanth, Sturgeons and Tarpons

  13. Elopidae Reproduction • Leptocephalus larvae • Planktonic, thin and transparent • Leaf-like body allows direct nutrient absorption • Females are highly fecund Coelacanth, Sturgeons and Tarpons

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