Overview

Distribution

Range Description

This species was known only from the type location of Lord Howe Island, New South Wales in Australia (Reid et al. 2005). The depth range of this species is not known (Reid et al. 2005). Numerous beachwashed cuttlebones (the largest 90 mm long) were found by A. Reid in December 2009. Entire animals are yet to be collected. Local knowledge suggests that this species may be active at night over seagrass beds (A. Reid, pers. comm.).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species is known only from a single cuttlebone which was 74 mm in length (Reid et al. 2005).

Systems
  • Marine
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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, Alex & Bohm, M.

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

Justification
Sepia baxteri has been assessed as Data Deficient as although this species apparently occurs only in a World Heritage Area, it is still not known from whole animals. Further research is recommended before an accurate assessment can be made.
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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). The potential association with seagrass beds might pose a future threat because of the documented worldwide declines of this habitat. However, the IUCN considers all Australian species of seagrass to be currently of 'Least Concern'.
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place, however Lord Howe Island is a World Heritage Area. Further research is recommended in order to determine the population trends, distribution, life history traits and threats impacting this species.
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Wikipedia

Sepia baxteri

Sepia baxteri is a species of cuttlefish native to the southwestern Pacific Ocean, specifically the waters around Lord Howe Island. It is known only from the type cuttlebones. Depth range is unknown.[1]

Cuttlebones of this species are known to reach at least 74 mm.[1]

S. baxteri is possibly a junior synonym of Sepia bandensis.[1] The placement of this species in the genus Sepia is also questionable.[2]

The type specimen was collected near Lord Howe Island (31°33′S 159°05′E / 31.550°S 159.083°E / -31.550; 159.083). It is deposited at the Australian Museum in Sydney.[2]

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.
  2. ^ a b Current Classification of Recent Cephalopoda
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