Results 31 to 40 of about 1,383 (160)

Efectos de las actividades antrópicas sobre parámetros metabólicos en un bivalvo invasor y otro nativo en el tramo inferior del río Paraná

open access: yesEcología Austral, 2022
La relación entre la contaminación antrópica, la geoquímica y la dinámica natural de los ecosistemas de agua dulce determinan patrones espaciales y temporales de calidad del agua. Las actividades humanas y la introducción de especies exóticas son causas
Tatiana Noya Abad   +9 more
doaj   +1 more source

Caracterización metabólica de Diplodon chilensis (Gray, 1828) (Bivalvia: Hyriidae) expuesto a anoxia experimental [PDF]

open access: yesRevista de biología marina y oceanografía, 2008
Diplodon chilensis es un bivalvo dulceacuicola que habita desde el norte de Chile hasta Tierra del Fuego, posee una alta capacidad de filtracion y gran tolerancia a ambientes hipoxicos. Por esta razon, el objetivo de este estudio fue caracterizar por primera vez el metabolismo anaerobico de D.
Grandón, Maritza A   +2 more
openaire   +2 more sources

The freshwater mussel Diplodon Chilensis (BIVALVIA:HYRIIDAE) potential biofilter to diminishcoliform levels of water wells. Laboratory experiment. [PDF]

open access: yes, 2014
Estudios realizados en comunidades rurales de la IX Región, donde habitan familias que se abastecen con agua de pozo, se han detectado índices de coliformes fecales de hasta 5400 NMP en 100 ml, especialmente en pozos de baja profundidad.

core   +1 more source

Bivalve molluscs of São Marcos locality, Medium Uruguay River Basin, Brazil [PDF]

open access: yesBiotemas, 2007
To verification of quali-quantitative it has been accomplished collected of bivalve molluscs during the period of twelve months, together with analysis of some abiotic variables in the middle care of Uruguay river, situated in São Marcos, Uruguaiana ...
Édison Vicente Oliveira   +5 more
doaj  

The Miocene lacustrine carbonate factory of the Ñirihuau Formation, Ñirihuau Basin, North Patagonian Andes, Argentina

open access: yesThe Depositional Record, Volume 11, Issue 1, Page 147-181, February 2025.
Detailed sedimentologic, petrographic and geochemical analyses of the lacustrine deposits registered on the Ñirihuau Formation middle section in the northern sector of the Ñirihuau Basin are presented. The lacustrine carbonates found within these deposits were analysed to characterise the palaeolake system as well as the carbonate factory of the basin,
Camila Santonja   +7 more
wiley   +1 more source

Gloquídio de Diplodon martensi (lhering) (Mollusca, Bivalvia, Hyriidae) e seu ciclo parasitário [PDF]

open access: yesRevista Brasileira de Zoologia, 1999
Conchological and anatomical studies of the glochidium of Diplodon martensi (lhering, 1893) were performed on samples collected in a small river, tributary from the Cai River, that belong to the Jacui River sub-basin in south-eastern Brazil. The parasitic development of the glochidium was observed in laboratory on a small cichlid fish Gymnogeophagus ...
openaire   +3 more sources

Seasonal periodicity of growth and composition in valves of Diplodon chilensis patagonicus (d'Orbigny, 1835) [PDF]

open access: yesJournal of Molluscan Studies, 2008
Freshwater mussels of the genus Diplodon (Unionida) are common inhabitants of lakes and rivers in South America, and have slow growth and long life spans. We established the annual periodicity of incremental shell growth in Diplodon chilensis patagonicus (d'Orbigny, 1835) and calculated growth rates at different ages, using internal ring counting ...
A.L. Soldati   +4 more
openaire   +1 more source

Classes de comprimento e descrição histológica das gônadas de Diplodon ellipticus (Wagner, 1827) (Mollusca, Bivalvia, Hyriidae) em um lago artificial, Morretes, Paraná, Brasil

open access: yesBiotemas, 2014
O objetivo deste estudo foi analisar a frequência por classes de comprimento e a organização histológica das gônadas de Diplodon ellipticus em um lago artificial localizado no município de Morretes-PR.
Ana Aparecida Nogueira Meyer   +3 more
doaj   +1 more source

Elementos óseos con aserrado perimetral: el caso del humedal del río Paraná inferior [PDF]

open access: yes, 2015
This paper analyses sample of cervid’s bones with perimetral sawing marks found in huntergatherer archaeological sites of Low Paraná wetland. Association with manufacture of bone tools is discuss; and we introduce new variants linked to bone sectioning ...
Acosta, Alejando   +2 more
core   +2 more sources

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