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Mostrando entradas de mayo, 2014

Nacreous clam : Náyades

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We are all part of an ecosystem, and we think we know everything about life around us. But she takes different forms, it is often mysterious ...   The   nacreous clams of the hydric system of Rio de la Plata   are an example of this.  These clams are  native. They live in freshwater. They are large, and its outer surface is covered by a dark layer,   but they have a very beautiful inner nacre layer. They live in our ecosystem, buried in the sandy mud of unpolluted waterways, and part of their life cycle are parasites of   fishes .  In the early 50's they were used to make  buttons.  Today they are threatened by pollution, overfishing and the presence of invasive species that compete for their habitat. Todos nosotros somos parte de un ecosistema, y pensamos que conocemos toda la vida que nos rodea. Pero, ella toma diferentes formas , muchas veces es misteriosa... Las almejas nacaríferas de la cuenca del Río de la P...

Origin of the name Conchitas

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T he names are lost in the swirl of time, and in a vast nearly untouched pampa ...  The name :  Shells appears in property  titles to the area near the stream since late 1700. Historians say  that the origin of the name is due to the abundance of shells in the area and also the exploitation of them for use as calcium oxide. But, today there is no trace of these shells, nor abandoned quarries where excavations were made​​.  However, there is an important fact to consider, in clean waterways of the Rio de la Plata are bivalves. These freshwater bivalves live buried in the mud and leave their shells to die. Perhaps there were  existed in other  time in this area, and giving rise to the name Shells. Birth of the stream Las Conchitas behind Hudson´s house Nacimiento del Arroyo Las Conchitas detrás de la casa de Hudson Stream Las Conchitas near 1900  -  Arroyo Las conchitas cerca de 1900 Los nombres  se pierden e...