common cuttlefish

Scientific name Sepia officinalis
Descriptor Linnaeus
Year of description 1758
IUCN category LC
Family Sepiidae
Genus Sepia
Sepia officinalis Sepia officinalis

Introduction

Sepia officinalis, commonly known as common cuttlefish, is a salt water mollusc.

Who is it?

Genus Sepia

The species of the genus Sepia are commonly called cuttlefish. They are found in most tropical and subtropical seas and oceans. Cuttlefish have an endoskeleton called cuttlebone. Made up of limestone, it grows floor after floor, becoming more complex (like a building on its foundations).

Cuttlefish vary the amount of gas present in the cavities thus created.  This allows it to precisely regulate its buoyancy depending on how deep under water it is situated.

The internal structure of the bone makes the shape of a pillar that connects the "floor" to the "ceiling" of the room. Reaching adulthood, this structure turns into a complex labyrinth.

Research is being conducted to understand why the bone structure changes with age. One of the hypothesis suggests that the more complex the skeleton, the better resistance to pressure and the better adjustment of the quantity of gas in the cavities. This may help the migration of adult cuttlefish to deeper waters.

The dorso-ventral part of cuttlefish is flat. Like for all cephalopods, the mouth has a beak and is positioned at the level of the feet. Around its mouth,the cuttlefish has 10 tentacles : 8 short ones with a sucker on all the inside, and 2 retractable used for hunting. These 2 ones have hammers with 6 rows of suckers at their end.

As for most cephalopods, life cycle is short and hardly exceeds a few years.

Morphology

  • Size
    20 - 45 cm
  • Colours
    changing
  • Mimicry
    multiple
  • Type of mouth
    beak
  • Chromatophores
    Yes
  • Motif
    mottling
  • Size
    20 - 45 cm
  • Colours
    changing
  • Mimicry
    multiple
  • Type of mouth
    beak
  • Chromatophores
    Yes
  • Motif
    mottling

How to recognize the common cuttlefish ?

The common cuttlefish measures between 20 and 45 cm. The has mottling.

Behaviour & Life cycle

  • Sociability
    solitary
  • Way of living
    diurnal
  • Venomous
    No
  • Diet
    predator

Chromatophores are pigment cells that reflect light in the integument of some animals. They are mostly responsible for the color of the skin and eyes of cold-blooded animals and are created by the neural crest during embryonic development.

The common cuttlefish is a mollusc solitary naturally found at mid-depth and near the bottom. This species is carnivorous .

n general, this species does not care much about other animals crossing its path.

Reproduction

  • Reproduction
    ovipare qui pond sur substrat découvert

The common cuttlefish is a mollusc ovipare qui pond sur substrat découvert.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

What is its habitat?

Natural environment characteristics

  • Depth
    0 - 200 m
  • Environment
    Active pelagic

Biotope presentation

The common cuttlefish is most often found at a depth between 0m and 200m. However, it is not impossible to find this species at other depths.

Species of the same biotope

Fishkeeping

Not recommended

We do not recommend keeping this species in an aquarium. It has unpredictable needs which, if not met, generate significant stress, potentially leading to a shorter life expectancy, an interruption of its growth or the development of pathogens.

To go further

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Translation

Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

Bibliographic references

Control of Zootechnology Leads to Improved Cuttlefish (Sepia officinalis, L.) Reproduction Performance up to Pre-industrial Levels - Juan C. Capaz - Daniel Hernández-Brooke - Safia Balvet - Ana T. Couto - Alexandra C. Alves - Rui A. Gonçalves - Paulo A. Frias - José P. Andrade - António V. Sykes - - 2020.

Cephalopods of the world - Volume 1. Chambered Nautiluses and Sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae) - Juan C. Capaz - Daniel Hernández-Brooke - Safia Balvet - Ana T. Couto - Alexandra C. Alves - Rui A. Gonçalves - Paulo A. Frias - José P. Andrade - António V. Sykes - FAO Fisheries Synopsis - 2005.

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