Overview

Distribution

Range Description

This species is endemic to New Zealand and Kermadec Island waters (Tsuchiya 2009). It occurs both north and south of the subtropical convergence (Young et al. 1998).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
Enoploteuthids generally occur in mid-depths in the ocean and occasionally over the continental shelf (Norman 2003). They undergo diel vertical migrations, rising into the upper water column at night to feed (Norman 2003). Females spawn small eggs (0.9 and 1.5 mm in diameter depending on species, Young et al. 1992) individually into gelatinous strings (Norman 2003).

Systems
  • Marine
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Depth range based on 24 specimens in 1 taxon.
Water temperature and chemistry ranges based on 22 samples.

Environmental ranges
  Depth range (m): 17 - 600
  Temperature range (°C): 9.001 - 21.367
  Nitrate (umol/L): 0.804 - 15.905
  Salinity (PPS): 34.692 - 35.598
  Oxygen (ml/l): 4.241 - 5.097
  Phosphate (umol/l): 0.189 - 1.198
  Silicate (umol/l): 0.871 - 15.375

Graphical representation

Depth range (m): 17 - 600

Temperature range (°C): 9.001 - 21.367

Nitrate (umol/L): 0.804 - 15.905

Salinity (PPS): 34.692 - 35.598

Oxygen (ml/l): 4.241 - 5.097

Phosphate (umol/l): 0.189 - 1.198

Silicate (umol/l): 0.871 - 15.375
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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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
2014

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

Reviewer/s
Young, R., Vecchione, M. & Böhm, M.

Contributor/s
Duncan, C. & Carrete-Vega, G.

Justification
Little is known about Abraliopsis tui, but what is known is that it has a restricted range and occurs at fished depths. Until more data are available it is impossible to assess the extinction risk of this species and we consider it Data Deficient at present. Further research is recommended in order to determine the precise distribution, population dynamics, life history and ecology, and potential threat processes affecting this species.
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Population

Population
There is no population information available for this species.

Population Trend
Unknown
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Threats

Major Threats
The threats to this species are not known.
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Management

Conservation Actions

Conservation Actions
There are no species-specific conservation measures in place for this species. Further research is recommended in order to determine the precise distribution, population dynamics, life history and ecology, and potential threat processes affecting this species.
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Wikipedia

Abraliopsis tui

Abraliopsis tui is species of enoploteuthid cephalopod found in the waters around New Zealand and the Kermadec Islands.

References[edit]

  1. ^ Barratt, I. & Allcock, L. (2014). "Abraliopsis tui". IUCN Red List of Threatened Species. Version 2014.2. International Union for Conservation of Nature. Retrieved 28 August 2014. 
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