Marisa cornuarietis 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Mollusca Gastropoda Architaenioglossa Ampullariidae

Scientific Name: Marisa cornuarietis Linnaeus, 1758

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2011
Date Assessed: 2011-07-22
Assessor(s): Pastorino, G. & Darrigan, G.
Reviewer(s): Böhm, M. & Collen, B.
Contributor(s): Dyer, E., Soulsby, A.-M., Whitton, F., McGuinness, S., De Silva, R., Milligan, H.T., Kasthala, G., Herdson, R., Thorley, J., McMillan, K. & Collins, A.
Marisa cornuarietis has been assessed as Least Concern as this species is widely distributed throughout many river systems with no known threats negatively impacting the global population. Furthermore, he species has also been introduced as a biological control agent in other parts of the world. Clarification of the native distribution and research on population status and trends in its native range would be useful to inform future conservation assessments of this species.

Geographic Range [top]

Range Description:This species has been collected from Bolivia, Brazil, Columbia, French Guiana, Guyana, Suriname, Trinidad and Tobago and Venezuela (Cowie and Thiengo 2003). Simone (2006) also lists this species to occur in Cuba, Costa Rica, Panama, Paraguay, Argentina, and Uruguay. However, Cowie and Thiengo (2003) believe specimens from south of the Amazon Basin were wrongly identified as Marisa cornuarietis by Ihering (1919). Therefore Paraguay, Uruguay and Argentina are not part of this species' distribution.
Countries occurrence:
Bolivia, Plurinational States of; Brazil; Colombia; Costa Rica; Cuba; French Guiana; Guyana; Panama; Suriname; Trinidad and Tobago; Venezuela, Bolivarian Republic of
Additional data:
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:There is no population information available for this species. However, this species has a wide distribution and has been introduced into many areas as a biological control agent (Pointier and Augustin 1999).
Current Population Trend:Unknown
Additional data:
Population severely fragmented:No

Habitat and Ecology [top]

Habitat and Ecology:This species commonly inhabits stagnant and slowly running freshwater ecosystems (Sawadee and Köhler 2009). It mainly feeds on living and decaying aquatic plants, but also consumes eggs and newly hatched young, and possibly adults of other snail species (Aufderheide et al. 2006). They deposit gelatinous clutches of 20-80 eggs underwater, which stick to submerged objects (Sawadee and Köhler 2009). This species is also considered to be a good traveller and is often introduced with aquatic plants used by aquarists (Pointier 2001).

Threats [top]

Major Threat(s): In Central and South America, as well as the Caribbean, freshwater ecosystems are adversely affected by pollution, siltation and changes to water quality caused by mining and deforestation. Furthermore, loss of habitat occurs due to conversion of freshwater and wetland habitats for intensive agriculture and livestock. Increased damming, water diversion and invasive species also pose significant threats (Olson et al. 1998). This species, although possibly impacted by many threats, has a wide distribution and has been introduced into many countries outside of Central and South America and the Caribbean as a biological control agent (Pointier and Augustin 1999).

Conservation Actions [top]

Conservation Actions: There are no species-specific conservation measures in place for this species. Further research is suggested regarding this species' habitat, population size, trends and distribution.

Citation: Pastorino, G. & Darrigan, G. 2011. Marisa cornuarietis. The IUCN Red List of Threatened Species 2011: e.T189507A8741248. . Downloaded on 24 May 2018.
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