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The lakes of Chiloé Island have a high dissolved organic carbon concentration (known as “humic”) and show a connection with brackish water. They also display a high species richness of crustacean zooplankton. The aim of the present study is to characterize the potential factors that explain crust...

The calanoid copepod, Boeckella poopoensis Marsh, 1906 inhabits shallow saline ponds located in the Andes mountains in Argentina, Bolivia, Chile, and Peru, as well as in the plains of southern Argentina. The species is halophilic and can tolerate salinity levels of 1 to 90 ppt. This paper describ...

The increase in the penetration of ultraviolet radiation that has been reported lately for freshwater ecosystems in southern South America, would allegedly generate alterations in ecological processes. In the present study, the mortality of Neobosmina chilensis (Daday 1902), a small cladoceran di...

El incremento de la penetración de la radiación ultravioleta ha sido reportado para ecosistemas lacustres en el sur de Sudamérica, y genera alteraciones en procesos ecológicos. En el presente trabajo, se estudió la mortalidad de Neobosmina chilensis (Daday, 1902), un cladócero de pequeño tamaño c...

The current, growing increase in penetration of ultraviolet (UV) radiation that has been reported over southern South America, would allegedly alter lacustrine ecosystems by bringing about photoprotective responses in biotic elements. The lacustrine zooplankton in the area is characterized by a p...

Southern Patagonia is characterized by the presence of numerous shallow ponds with variable trophic and conductivity conditions, and a relatively high species richness of Crustacea. In the present study, published information and data collected in field work on shallow ponds in the Magellan regio...

First results are described from the application of a recently developed dry method for determination of elements in single specimens of freshwater microcrustaceans, using total reflection X-ray fluorescence spectrometry (TXRF). This method is a powerful, non-destructive technique for quantifying...

With their ultraoligotrophic status, the Chilean North Patagonian lakes have mixotrophic ciliates in their pelagic environments as producers, whereas the primary consumers are crustaceans that are low in abundance and species numbers. The aim of the present study was to determine the potential gr...

Los copépodos calanoideos son abundantes en los ensambles zooplanctónicos de aguas continentales de la Patagonia, y en este contexto, se analizaron parámetros de fertilidad en cuatro especies de calanoideos representativos de aguas continentales de la Patagonia (37°-52° S) con el objetivo de dete...

The calanoids copepods are abundant in zooplankton assemblages in Patagonian inland waters, and within context the aim of determine the fertility parameters on populations of copepods representative of different inland water of Chilean Patagonia (37°-52° S). For this purpose, it was considered tw...