Overview

Distribution

Range Description

This species is endemic to the Cape Verde Islands where it is only found off the western shores of the island of Boavista at Baía Teodora and Baía de Sal-Rei (Monteiro et al. 2004) extending to Curral Velho, a coastline of approx 21 km in length. It is not found on the northern or eastern coasts. The distribution is usually related to the habitats so only present with rocky and sandy habitats (M. J. Tenorio pers. comm. 2011).
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology

Adults of the species typically grow to 35-50 mm in length (M. J. Tenorio pers. comm. 2011). The species is usually common in the rocky habitats with sandy patches where it sits half-buried in the sand with the white coloration of the shell camouflaging the species. In the breeding season the species is found in shallow waters of 0.4 m to 15 m.


Systems
  • Marine
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
NT
Near Threatened

Red List Criteria

Version
3.1

Year Assessed
2012

Assessor/s
Tenorio, M.J.

Reviewer/s
Seddon, M. & Monnier, E.

Contributor/s

Justification
This species is endemic to the Cape Verde Islands where it is only found in the western part of Boavista. This species is more restricted than some other Cape Verde endemics. However, at present coastal development is not thought to be significantly impacting the population as the main habitats where the species is found do not lie close to any proposed developments. As part of the population lies close to the harbour with the possibilities of oil spills, the species is listed as Near Threatened, and future monitoring of developments is warranted.
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Population

Population
There are no records of population levels for this species in the literature.

Population Trend
Unknown
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Threats

Major Threats
This species is highly restricted in its range, being found along a single 21 km coastline on the island of Boavista. In common with other islands in the Cape Verde archipelago, Boavista is scheduled for major tourism development including close by the area which the species inhabits. However the major developments are scheduled for the areas with the sandy beaches. The region around has a small harbour at Vila de Sal Rei where this species was affected during the development of the harbour. This species is only locally impacted by pollution and possibly in the future by oil spills.

The shells of this species are not exceptional in their price in the collector market, i.e. there is reasonable availability indicated. At present, although there are threats associated with beach tourism and it is a shallow water species, it is not considered to be affecting the population levels.

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Management

Conservation Actions

Conservation Actions
This species has a restricted range and would benefit from further research into abundance and threats. There are no known conservation measures currently in place for this species. There are already studies of the population genetics for this group (Cunha et al. 2008).
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Wikipedia

Conus trochulus

Conus trochulus 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.

Contents

Description

Distribution

References

  1. ^ Conus trochulus Reeve, 1844.  Retrieved through: World Register of Marine Species on 27 March 2010.
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