Results 11 to 20 of about 527 (160)

QUANTITATIVE KARYOTYPE OF DIPLODON CHILENSIS (GRAY 1828) (BIVALVIA:HYRIIDAE) CARIOTIPO CUANTITATIVO DE DIPLODON CHILENSIS (GRAY 1828) (BIVALVIA:HYRIIDAE)

open access: yesGayana, 2000
The karyotype of a freshwater population of Diplodon chilensis located in La Poza area of the Villarrica Lake (39º18'S; 72º05'W), Southern Chile, was studied. The chromosomes were obtained by squash of cleaving embryos, previously treated with colchicine
Pedro Jara-Seguel   +4 more
doaj   +2 more sources

DIPLODON PATAGONICUS (BIVALVIA: HYRIIDAE): TO BE OR NOT TO BE DIPLODON PATAGONICUS (BIVALVIA: HYRIIDAE): SER O NO SER

open access: yesGayana, 2008
Se entregan antecedentes que establecen que Diplodon patagonicus (D'Orbigny 1835) señalado como especie presente en la región Neo tropica-Patagonia por Graf & Cummins (2007) corresponde aDiplodon chilensis patagonicus (D'Orbigny 1846) (sensu Haas 1969).
Esperanza Parada, Santiago Peredo
doaj   +2 more sources

ANTECEDENTES ARQUEOLÓGICOS DEL GENERO DIPLODON (SPIX, 1827) (BIVALVIA, HYRIIDAE) EN CHILE ARCHAEOLOGICAL RECORD FOR DIPLODON (SPIX, 1827) (BIVALVIA, HYRIIDAE) IN CHILE

open access: yesGayana, 2008
Se presenta una revisión bibliográfica de los registros del género Diplodon (Spix, 1827) (Hyriidae), presentes en sitios arqueológicos de Chile. Las evidencias indican una efímera presencia de estos bivalvos en contextos arqueológicos de finales del ...
Donald Jackson, Douglas Jackson
doaj   +2 more sources

ALIMENTACION Y CONDUCTA ALIMENTARIA DE LA ALMEJA DE AGUA DULCE DIPLODON CHILENSIS (BIVALVIA: HYRIIDAE) FEEDING AND ALIMENTARY BEHAVIOR OF FRESHWATER MUSSEL DIPLODON CHILENSIS (BIVALVIA: HYRIIDAE)

open access: yesGayana, 2002
Con el propósito de conocer cualitativamente la alimentación y la conducta alimentaria de la almeja de agua dulce Diplodon chilensis, se analizó mediante estudios de laboratorio y de campo el comportamiento alimentario y el contenido digestivo de ...
Gladys Lara   +2 more
doaj   +2 more sources

Microestructura y polimorfismo en valvas recientes de Diplodon chilensis patagonicus (d’Orbigny 1835) Microstructure and polymorphism Oí Diplodon chilensis patagonicus (d’Orbigny 1835) recent shells

open access: yesGayana, 2010
Gracias a su potencial como registro ambiental, las valvas del molusco Diplodon han despertado recientemente el interés de la comunidad científca. En este trabajo, por medio de microscopía electrónica de barrido (SEM) y espectroscopía Raman se investigó ...
Analía L Soldati   +3 more
doaj   +2 more sources

ESTANDARIZACION DEL BIOENSAYO DE TOXICIDAD AGUAD CON DIPLODON CHILENSIS USANDO UN TOXICO DE REFERENCIA STANDARIZATION OF THE ACUTE TOXICITY BIOASSAY WITH DIPLODON CHILENSIS USING A REFERENCE TOXICANT

open access: yesGayana, 2007
El amplio rango de sensibilidades de las diferentes especies de organismos a la extensa diversidad de contaminantes ambientales hacen recomendable utilizar una batería de especies distintas en las evaluaciones de toxicidad ambiental.
Jeannette Silva   +3 more
doaj   +2 more sources

Inducing the Alternative Oxidase Forms Part of the Molecular Strategy of Anoxic Survival in Freshwater Bivalves [PDF]

open access: yesFrontiers in Physiology, 2018
Hypoxia in freshwater ecosystems is spreading as a consequence of global change, including pollution and eutrophication. In the Patagonian Andes, a decline in precipitation causes reduced lake water volumes and stagnant conditions that limit oxygen ...
Maria S. Yusseppone   +6 more
doaj   +2 more sources

Histopathological effects of the herbicide atrazine on gills of the Brazilian endemic bivalveDiplodon expansus [PDF]

open access: yesInternational Journal of Environmental Analytical Chemistry, 2016
ABSTRACTDue to their benthic filter-feeding habits and high bioaccumulation potential of metals and organic compounds, bivalve molluscs have been widely used in studies in the field and laboratory to assess the toxic effects of several compounds discharged in rivers, oceans and estuaries.
Nogarol, Larissa Rosa   +3 more
openaire   +4 more sources

EXTENTION OF THE CURRENT NORTHERN DISTRIBUTION RANGE OF FRESHWATER MUSSEL Diplodon chilensis (GRAY, 1828) (BIVALVIA:HYRIIDAE) IN CHILE EXTENSION DEL LIMITE NORTE DE LA DISTRIBUCION ACTUAL DEL CHORITO DE AGUA DULCE Diplodon chilensis (GRAY, 1828) (BIVALVIA:HYRIIDAE) EN CHILE

open access: yesGayana, 2007
The extent of the northern distribution range of Diplodon chilensis is reported herein from specimens collected in the Río Grande, an affluent of the Río Limari located to the south of the village of Carachilla (30º28'S;71º05'W)
Esperanza Parada   +3 more
doaj   +1 more source

DIPLODON CF. COLHUAPIENSIS (BIVALVIA, HYRIIDAE) IN THE SANTA CRUZ FORMATION (EARLY–MIDDLE MIOCENE) AT THE RÍO SANTA CRUZ, PATAGONIA, ARGENTINA. STRATIGRAPHIC AND PALEOENVIRONMENTAL CONSIDERATIONS [PDF]

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2019
The Santa Cruz Formation (Early–Middle Miocene) is one of the most widespread sedimentary units of the Argentine Patagonia. This unit contains an abundant and taxonomically diverse fossil vertebrate fauna, especially in mammals. Thus, the paleoecological
Leandro Martín Pérez   +3 more
doaj   +2 more sources

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