Overview

Distribution

Range Description

This species is apparently distributed in tropical to subtropical waters of the Atlantic (Tsuchiya 2009). Its distribution range includes the Caribbean Sea, Gulf of Mexico and the Benguela Current (Tsuchiya 2009).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
In the Benguela Current this species occurs in the upper thermocline during the day and from the surface to 100-150 m at night (Tsuchiya 2009). Mature ovarian oocytes measure 1 mm in length and the total number of oocytes ranged from 4,000 to 29,000 in fourteen females with mantle lengths that ranged between 17 and 35 mm (Laptikhovsky 1999). 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 the small eggs individually into gelatinous strings (Norman 2003).

Systems
  • Marine
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Depth range based on 2 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 636 - 2439.5
  Temperature range (°C): 6.242 - 6.242
  Nitrate (umol/L): 36.208 - 36.208
  Salinity (PPS): 34.552 - 34.552
  Oxygen (ml/l): 2.582 - 2.582
  Phosphate (umol/l): 2.313 - 2.313
  Silicate (umol/l): 24.922 - 24.922

Graphical representation

Depth range (m): 636 - 2439.5
 
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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
Vecchione, M., Young, R. & Böhm, M.

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

Justification
Since the morphology of Abraliopsis atlantica is not clear, all records should be treated with caution. Because of this uncertainty, we know very little about this species. Until clarity is provided, we must consider this species Data Deficient. 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.
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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 atlantica

Abraliopsis atlantica is a species of enoploteuthid cephalopod found in the tropical and subtropical Atlantic Ocean, including the Caribbean Sea, the Gulf of Mexico and the Benguela Current. Female oocytes are 1 mm in length, and there can be anywhere from 4,000 to 29,000 in a mature female.

References[edit]

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