Overview

Distribution

Range Description

This species occurs around the Kermadec Islands and possibly off Queensland, eastern Australia (Tsuchiya 2009).
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Physical Description

Type Information

Holotype for Abralia astrolineata Berry, 1914
Catalog Number: USNM 816428
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: female;
Preparation: Alcohol (Ethanol)
Collector(s): R. Bell
Year Collected: 1910
Locality: Kermadec Islands, Sunday Island, On Beach, New Zealand, South Pacific Ocean
  • Holotype: Berry, S. S. 1914. Trans. Proc. N.Z. Inst. 46(24): 145-148, pl. 10.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology

These squid attain up to 100 mm in mantle length, which is large for the genus, and inhabit the mesopelagic-boundary region (Tsuchiya 2009, Young and Tsuchiya 2009). 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 4 specimens in 1 taxon.
Water temperature and chemistry ranges based on 3 samples.

Environmental ranges
  Depth range (m): 447.5 - 751.5
  Temperature range (°C): 10.911 - 14.067
  Nitrate (umol/L): 14.012 - 20.236
  Salinity (PPS): 34.878 - 35.178
  Oxygen (ml/l): 4.045 - 4.176
  Phosphate (umol/l): 0.842 - 1.326
  Silicate (umol/l): 5.290 - 7.898

Graphical representation

Depth range (m): 447.5 - 751.5

Temperature range (°C): 10.911 - 14.067

Nitrate (umol/L): 14.012 - 20.236

Salinity (PPS): 34.878 - 35.178

Oxygen (ml/l): 4.045 - 4.176

Phosphate (umol/l): 0.842 - 1.326

Silicate (umol/l): 5.290 - 7.898
 
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 Abralia astrolineata and we therefore consider it to be Data Deficient. 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

Its population size is unknown.


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

Abralia astrolineata

Abralia astrolineata is a species of enoploteuthid cephalopod that occurs in the waters around the Kermadec Islands in New Zealand. It is fairly large for this genus, growing up to 100 mm in mantle length.

References[edit]

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