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Cuttlefish

Macduff Aquarium


The Common Cuttlefish (Sepia officinalis) is one of the largest and best known cuttlefish species. It grows to 49 cm in mantle length (ML) and 4 kg in weight. Animals from subtropical seas are smaller and rarely exceed 30 cm in ML.

The Common Cuttlefish is native to at least the Mediterranean Sea, North Sea, and Baltic Sea. It lives on sand and mud seabeds to a depth of around 200 m. As in most cuttlefish species, spawning occurs in shallow waters.

Predators and preyEdit

Known predators of S. officinalis include large fish (such as monkfish and swordfish, Xiphias gladius) and whales.

In the wild, S. officinalis is known to prey upon a wide variety of animals. These include: bony fishes, copepods, crustaceans, decapod cephalopods, gastropods, lamellibranches, nemerteans, octopods, ostracods, polychaetes, and pteropods.

A 2008 study on S. officinalis[1]revealed that cuttlefish embryos, if visually exposed to a certain species of prey (e.g. crabs), will hunt primarily for that prey in later life. S. officinalis usually prefer shrimp to crabs, but when the embryos were exposed to crabs and the embryos had hatched, the young cuttlefish switched preferences and proceeded to hunt the crabs more often than the shrimp.

GalleryEdit

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