Overview

Distribution

Range Description

This species has a geographic distribution which extends from Port Elizabeth in South Africa along the east coast of Africa to Somalia and includes Madagascar (Reid et al. 2005).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
The maximum mantle length of females is 120 mm and 100 mm in males (Reid et al. 2005).

Systems
  • Marine
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Depth range based on 4 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 238.5 - 266
  Temperature range (°C): 14.901 - 14.901
  Nitrate (umol/L): 9.202 - 9.202
  Salinity (PPS): 35.352 - 35.352
  Oxygen (ml/l): 4.323 - 4.323
  Phosphate (umol/l): 0.693 - 0.693
  Silicate (umol/l): 9.953 - 9.953

Graphical representation

Depth range (m): 238.5 - 266
 
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Dispersal

Depth range

44 to 369 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
DD
Data Deficient

Red List Criteria

Version
3.1

Year Assessed
2012

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

Reviewer/s
Reid, A., Rogers, A. & Böhm, M.

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

Justification
Sepia acuminata has been assessed as Data Deficient because very little is known about it. It has a reasonably broad distribution and is not the target of fishing pressure, but it may be taken as bycatch and there by other threats as yet unknown.
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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).
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Management

Conservation Actions

Conservation Actions
No conservation measures are currently needed for this species and none are in place.
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Wikipedia

Sepia acuminata

Sepia acuminata is a species of cuttlefish native to the southwestern Indian Ocean, from Port Elizabeth, South Africa to Somalia (01º30'N–30ºS), and Madagascar. It lives at a depth of between 44 and 369 m.[1]

Females are slightly larger than males, growing to 120 mm and 100 mm in mantle length, respectively.[1]

The type specimen was collected near Tongaat Beach, Port Elizabeth, South Africa.[1]

References

  1. ^ a b c Reid, A., P. Jereb, & C.F.E. Roper 2005. Family Sepiidae. In: P. Jereb & C.F.E. Roper, eds. Cephalopods of the world. An annotated and illustrated catalogue of species known to date. Volume 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Species Catalogue for Fishery Purposes. No. 4, Vol. 1. Rome, FAO. pp. 57–152.
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