The suitability of a newly developed, portable total reflection X-ray fluorescence (TXRF) spectrometer (PicoTAX, Roentec, Berlin, Germany) to analyze trace elements in biological material was tested and compared with a stationary instrument (Spectrometer 8030 C, FEI, Munich, Germany). For that, s...
The zooplankton in South American saline waters is mainly dominated by copepods at salinities lower than 90 g/l, whereas at salinities above 90 g/l Artemia sp. is totally dominant. The aim of the present study is to analyse the salinity range of halophilic copepods on the basis of a literature re...
De Los Ríos Escalante, Patricio
,
Bayly, Ian A. E.
,
[Halotolerant Copepoda in South American inland saline waters]
,
Halotolerant Copepoda in South American inland saline waters
The crustacean zooplankton of Chilean inland waters are characterized by abundant calanoid copepods, mainly from the genus Boeckella. The present study aims to update the distribution of Boeckella gracilis in the inland waters of the Araucania region (38-39°S) and to use null model analysis to un...
Los crustáceos zooplanctónicos en aguas continentales chilenas están caracterizados por la
abundancia de copépodos calanoideos, principalmente del género Boeckella. El objetivo del presente trabajo
es actualizar la distribución de esta especie en aguas continentales de la región de la Araucanía (...
De Los Ríos Escalante, Patricio
,
Carreño Abarzúa, Eriko
,
Hauenstein Barra, Enrique
,
Vega, Marcela
,
[Actualización de la distribución de Boeckella gracilis (Daday, 1902) (Crustacea, Copepoda) en la Región de la Araucanía (38°s), Chile, y un modelo nulo para comprender sus asociaciones específicas en su hábitat]
,
[An update of the distribution of Boeckella gracilis (Daday, 1902) (Crustacea, Copepoda) in the Araucania region (38°s), Chile, and a null model for understanding its species associations in its habitat]
,
An update of the distribution of Boeckella gracilis (Daday, 1902) (Crustacea, Copepoda) in the Araucania region (38°s), Chile, and a null model for understanding its species associations in its habitat
River systems of Central Chile are short, steep and fast flowing. They are characterized by discharge regimes dominated by rainfall and snowmelt. Invertebrate fauna is highly endemic. This study aimed to describe the community structure of invertebrate in eight
river systems in Central Chile (33-...
Os sistemas fluviais do Chile central são curtos, íngremes e fluem rapidamente. Eles são caracterizados por regimes de descarga dominados por chuvas e neve derretida. A fauna de invertebrados desses sistemas fluviais é altamente endêmica. O objetivo do presente estudo foi descrever a estrutura da...
De Los Ríos Escalante, Patricio
,
[Estrutura da comunidade de invertebrados em rios da região central do Chile]
,
[Community structure of invertebrate fauna in Central Chilean Rivers]
,
Community structure of invertebrate fauna in Central Chilean Rivers
Most of the mesosaline lakes in the semiarid central Pampas have a high anthropogenic influence. The aim was to determine the variation in limnological and zooplankton parameters of a mesosaline lake with little human impact, the West Lake of the Parque Luro Reserve during a year. Monthly samples...
La mayoría de los lagos mesosalinos en la Pampa central semiárida sufren alta influencia antrópica. El objetivo fue determinar la variación de los parámetros limnológicos y del zooplancton de un lago mesosalino con poco impacto humano, el lago Oeste de la Reserva Parque Luro a lo largo de un año....
Echaniz, Santiago Andrés
,
María Vignatti, Alicia
,
Cabrera, Gabriela
,
Lorena Torres, Florencia
,
[Dinámica del zooplancton y de los parámetros limnológicos de un lago mesosalino de un área protegida en la Pampa semiárida de Argentina]
,
[Zooplankton and limnological parameters dynamics in a mesosaline lake of a protected area in the semi-arid Pampa of Argentina]
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Zooplankton and limnological parameters dynamics in a mesosaline lake of a protected area in the semi-arid Pampa of Argentina
De Los Ríos Escalante, Patricio
,
[First descriptions of zooplanktonic crustaceans for a North Patagonian estuary (Nehuentue, 38°S, Araucanía, Chile)]
,
First descriptions of zooplanktonic crustaceans for a North Patagonian estuary (Nehuentue, 38°S, Araucanía, Chile)
The zooplankton assemblages in deep, mostly oligotrophic northern Patagonian lakes are characterized by a low species number and a marked dominance of calanoid copepods, as well as often by the presence of large mixotrophic ciliates (Stentor). In the present study, data collected in field work on...
De Los Ríos Escalante, Patricio
,
Woelfl, Stefan
,
[Use of null models to explain crustacean zooplankton assemblages in northern patagonian lakes (Chile) with and without mixotrophic ciliates]
,
Use of null models to explain crustacean zooplankton assemblages in northern patagonian lakes (Chile) with and without mixotrophic ciliates
Even though the Chilean lakes are characterized by their oligotrophy, a transition from oligotrophy to mesotrophy, due human intervention, has been reported in some lakes. Nevertheless, there are still some pristine and unpolluted small lakes and ponds in mountain zones, free of human interventio...
De Los Ríos Escalante, Patricio
,
Roa, G.
,
[Species assemblages of zooplanktonic crustaceans in mountain shallow ponds of Chile (Parque Cañi)]
,
Species assemblages of zooplanktonic crustaceans in mountain shallow ponds of Chile (Parque Cañi)
The benthic crustaceans in Chilean rivers and streams are characterized by their marked endemism and low species number. Ecological studies have indicated that some species may be used as indicators of water quality, considering the involvement of river basins in human agricultural, industrial, a...
Correa Araneda, Francisco
,
Contreras, Angel
,
De Los Ríos Escalante, Patricio
,
[Amphipoda and Decapoda as potential bioindicators of water quality in an urban stream (38°S, Temuco, Chile)]
,
Amphipoda and Decapoda as potential bioindicators of water quality in an urban stream (38°S, Temuco, Chile)
The increase in penetration of ultraviolet radiation has been reported currently over southern South America. It would affect the photoprotective responses in biotic elements of freshwater ecosystems. An experiment was designed using pigmented adult individuals of the species Daphnia dadayana (Pa...
