Overview

Distribution

Range Description

This species has a geographic distribution that extends from Western Australia along the North West Shelf to the Kai Islands in Indonesia and the Arafura Sea (Reid et al. 2005).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species has a wide, deep depth distribution (150 to 404 m) and inhabits mud, silt and sand (Reid et al. 2005). It may also migrate to shallower water to spawn (Reid et al. 2005). Females attain larger body sizes (up to 97 mm in mantle length) compared to males (up to 68 mm in mantle length) (Reid et al. 2005).

Systems
  • Marine
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mud, silt, rocks
  • Jereb, P.; Roper, C.F.E. (Eds)(2005). An annotated an illustrated catalogue of cephalopod species known to date. Volume 1: Chambered nautilusses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Species Catalogue for Fishery Purposes 4(1). FAO, Rome. 262p., 9 colour plates.
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upper slope
  • UNESCO-IOC Register of Marine Organisms
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Depth range based on 3 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 168 - 299
  Temperature range (°C): 12.877 - 20.387
  Nitrate (umol/L): 10.433 - 19.343
  Salinity (PPS): 34.833 - 34.902
  Oxygen (ml/l): 2.713 - 3.045
  Phosphate (umol/l): 0.933 - 1.641
  Silicate (umol/l): 14.577 - 30.091

Graphical representation

Depth range (m): 168 - 299

Temperature range (°C): 12.877 - 20.387

Nitrate (umol/L): 10.433 - 19.343

Salinity (PPS): 34.833 - 34.902

Oxygen (ml/l): 2.713 - 3.045

Phosphate (umol/l): 0.933 - 1.641

Silicate (umol/l): 14.577 - 30.091
 
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Dispersal

Depth range

150 to 404 m.
  • Jereb, P.; Roper, C.F.E. (Eds)(2005). An annotated an illustrated catalogue of cephalopod species known to date. Volume 1: Chambered nautilusses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Species Catalogue for Fishery Purposes 4(1). FAO, Rome. 262p., 9 colour plates.
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
Barratt, I. & Allcock, L.

Reviewer/s
Reid, A., Rogers, Alex & Bohm, M.

Contributor/s
Herdson, R. & Duncan, C.

Justification
Sepia sulcata has been assessed as Least Concern as it is has a wide distribution and is not the target of a fishery. It may be taken in mixed species trawls in some areas but this is likely to have a localised impact only.
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Population

Population
The population size of this species is unknown.

Population Trend
Unknown
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Threats

Major Threats
Ocean acidification caused by increased levels of carbon dioxide in the atmosphere is potentially a threat to all cuttlefish. Studies have shown that under high pCO2 concentrations, cuttlefishes actually lay down a denser cuttlebone which is likely to negatively affect buoyancy regulation (Gutowska et al. 2010). This species may be taken in mixed species trawls (Reid et al. 2005).
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Management

Conservation Actions

Conservation Actions
No conservation measures are currently needed for this species and none are in place. Further research is recommended regarding the population trends, distribution, life history traits and threats impacting this species.
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