Overview

Distribution

Range Description

This species occurs in the southwest Pacific (Tsuchiya 2009). Its distribution includes the shelf waters of South Australia and northern New Zealand (Tsuchiya 2009).
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Physical Description

Type Information

Paratype for Enoploteuthis galaxias Berry, 1918
Catalog Number: USNM 816352
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: male;
Preparation: Isopropyl Alcohol
Locality: Gabo Island To Everard Grounds, Victoria, Australia, Tasman Sea, South Pacific Ocean
Depth (m): 366 to 457
Vessel: Endeavour R/V
  • Paratype: Berry, S. S. 1918. Biol. Results Fish. Exp. Endeavour. 4(5): 211-221, pls. 59-60.
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Source: National Museum of Natural History Collections

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Paratype for Enoploteuthis galaxias Berry, 1918
Catalog Number: USNM 816355
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: female;
Preparation: Alcohol (Ethanol)
Locality: Gabo Island To Everard Grounds, Victoria, Australia, Tasman Sea, South Pacific Ocean
Depth (m): 366 to 457
Vessel: Endeavour R/V
  • Paratype: Berry, S. S. 1918. Biol. Results Fish. Exp. Endeavour. 4(5): 211-221, pls. 59-60.
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© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology

Source: National Museum of Natural History Collections

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is a mesopelagic boundary species that occurs along the temperate shelf waters of southern Australia and northern New Zealand (Tsuchiya 2009). It resembles Enoploteuthis chunii in appearance and ecology (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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mesopelagic
  • UNESCO-IOC Register of Marine Organisms
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Source: World Register of Marine Species

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Depth range based on 31 specimens in 1 taxon.
Water temperature and chemistry ranges based on 15 samples.

Environmental ranges
  Depth range (m): 1 - 1375
  Temperature range (°C): 3.177 - 20.714
  Nitrate (umol/L): 0.804 - 39.114
  Salinity (PPS): 34.569 - 35.601
  Oxygen (ml/l): 2.743 - 5.716
  Phosphate (umol/l): 0.189 - 2.761
  Silicate (umol/l): 0.938 - 104.871

Graphical representation

Depth range (m): 1 - 1375

Temperature range (°C): 3.177 - 20.714

Nitrate (umol/L): 0.804 - 39.114

Salinity (PPS): 34.569 - 35.601

Oxygen (ml/l): 2.743 - 5.716

Phosphate (umol/l): 0.189 - 2.761

Silicate (umol/l): 0.938 - 104.871
 
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. & Allcock, L.

Justification
Enoploteuthis galaxias is an oceanic species which has a wide geographic distribution, making it less susceptible to human impact. However, further research is recommended in order to determine the taxonomy, precise distribution, population dynamics, life history and ecology, and potential threat processes affecting this species. Indeed, until it is clear whether or not this species is synonymous with A. semilineata, we cannot be sure of its true distribution. We therefore consider it to be Data Deficient.
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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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