Distribucion del genero Anodontites (Mollusca: Bivalvia: Mycetopodidae) en Uruguay


Autoria(s): Clavijo, Cristhian
Data(s)

2009

Resumo

Distribution of the genus Anodontites (Mollusca: Bivalvia: Mycetopodidae) in Uruguay. Seven species of the freshwater mussel genus Anodontites were recorded from Uruguay. The populations of these bivalves suffer the negative effects of invasive bivalves, damming, industrial and urban discharges, and agrotoxic runoff. The distribution of these species is generally characterized at the level of basin or politic divisions, and precise geographic records are scarce. In order to detail the distribution of those species, the most representative collections of Uruguay were examined, the material of Anodontites was identified (612 records) and geographic coordenates were assigned at each locality (213 localities), using Geographic Information System (GIS) to obtain a distribution map for each species. Most of the localities with Anodontites were located in the left margin of Uruguay River and southwest of Uruguay, mainly in Soriano, Artigas, Salto and Colonia departments. The Salto Grande basin presented the highest species richness. The species with a highest number of records was A. patagonicus, which was also recorded in all basins. A. trapesialis and A. tenebricosus had a wide distribution and a high number of records. A. lucidus and A. ferrarisii, had a wide distribution (more than 6 basins) but comparatively lower number of records. Finally A. trapezeus and A. trigonus showed a limited distribution. There is a critical lack of samples in Merín Lagoon, Atlantic and Upper Negro River basins. It is necessary to carry out new sampling considering many variables in order to evaluate the current distribution and the ecologic preferences for each species.

Formato

application/pdf

Identificador

http://aquaticcommons.org/3576/1/Clavijo_201-210_CSMU_92.pdf

Clavijo, Cristhian (2009) Distribucion del genero Anodontites (Mollusca: Bivalvia: Mycetopodidae) en Uruguay. Comunicaciones de la Sociedad Malacológica del Uruguay, 9(92), pp. 201-210.

Idioma(s)

es

Relação

http://aquaticcommons.org/3576/

Palavras-Chave #Conservation #Ecology #Biology
Tipo

Article

PeerReviewed