Overview

Distribution

Range Description

This species is only known from deep waters, between 60 m and 460 m, off the coast of South Africa and Namibia. Specimens of this species have been found as far north as the Walvis Bay area, Namibia and as far east as Cape Recife, near Port Elizabeth, South Africa (Tenorio and Antonio, 2008).

The EOO, AOO, and number of locations for this species exceed the criteria for B1, B2, and D2 classification.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species has been trawled from mud substrate off the coast of South Africa (Poppe and Poppe 2011). It is a deepwater species along the Cape and Namibia coasts, dredged at 60 m in Port Elizabeth. Adults may grow to 72 mm but will generally be less than this.

Systems
  • Marine
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Depth range based on 11 specimens in 1 taxon.
Water temperature and chemistry ranges based on 1 sample.

Environmental ranges
  Depth range (m): 31 - 468.173
  Temperature range (°C): 19.083 - 19.083
  Nitrate (umol/L): 6.584 - 6.584
  Salinity (PPS): 35.443 - 35.443
  Oxygen (ml/l): 4.335 - 4.335
  Phosphate (umol/l): 0.567 - 0.567
  Silicate (umol/l): 7.751 - 7.751

Graphical representation

Depth range (m): 31 - 468.173
 
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2013

Assessor/s
Veldsman, S.G.

Reviewer/s
Peters, H. & Raybaudi-Massilia, G.

Contributor/s

Justification
This species is only known from deep waters, between 60 m and 460 m, off the coast of South Africa and Namibia. This species is wide-ranging and has no known threats to its population as it is a deeper water species. It has therefore been listed as Least Concern.
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Population

Population
There are no population data available for this species in the literature.

Population Trend
Unknown
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Threats

Major Threats
There are no known material threats to this species. It is a deepwater species and there is no trawling within its range which might explain why it is sometimes considered to be scarce (S. Veldsman pers. comm. October 2011).
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Management

Conservation Actions

Conservation Actions
There are no known conservation measures currently in place for this species.
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Wikipedia

Conus gradatulus

Conus gradatulus is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.[1]

Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.

There is one subspecies: Conus gradatulus patens Sowerby, G.B. III, 1903

Contents

Description

Distribution

Gallery

References

  1. ^ a b Conus gradatulus Weinkauff, 1875.  Retrieved through: World Register of Marine Species on 27 March 2010.
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