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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, PatricioWoelfl, 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

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...


De Los Ríos Escalante, PatricioWoelfl, StefanSoto, C.[Experimental evidence for crustacean zooplankton grazing activity on mixotrophic ciliates]Experimental evidence for crustacean zooplankton grazing activity on mixotrophic ciliates

Chile is the second largest producer of salmonids worldwide. The first step in the production of salmonids takes place in land-based aquacultures. However, the effects of the discharge from these aquacultures on stream dissolved organic matter (DOM) content, molecular composition and degradabilit...


Nimptsch, JorgeWoelfl, StefanOsorio, SebastianValenzuela, JoseEbersbach, Paulvon Tumpling, WolfPalma, RodrigoEncina Montoya, FranciscoFigueroa, DavidKamjunke, NorbertGraeber, Daniel[Tracing dissolved organic matter (DOM) from land-based aquaculture systems in North Patagonian streams]Tracing dissolved organic matter (DOM) from land-based aquaculture systems in North Patagonian streams

Zooplankton assemblages in Northern Patagonian lakes are characterized by a low species richness and a marked dominance of calanoid copepods. The aim of the present study was to do a null model analysis to explain the composition of the zooplankton assemblages in two North Patagonian lakes. The f...


De Los Rios-Escalante, PatricioWoelfl, Stefan[USE OF NULL MODELS TO EXPLAIN CRUSTACEAN ZOOPLANKTON ASSEMBLAGES IN NORTH PATAGONIAN LAKES WITH PRESENCE OR ABSENCE OF MIXOTROPHIC CILIATES (38 degrees S, CHILE)]USE OF NULL MODELS TO EXPLAIN CRUSTACEAN ZOOPLANKTON ASSEMBLAGES IN NORTH PATAGONIAN LAKES WITH PRESENCE OR ABSENCE OF MIXOTROPHIC CILIATES (38 degrees S, CHILE)

The trace element content of individual copepod specimens and of the Brazilian water weed (Egeria densa) from a metal-contaminated wetland in Southern Chile were determined using total reflection X-ray fluorescence spectrometry. Sampling of the water and the organisms was carried out at three sam...


Woelfl, StefanMages, MargareteEncina Montoya, FranciscoBravo, Francisco[Trace metals in microcrustaceans and Brazilian waterweed from a contaminated Chilean wetland using total reflection X-ray fluorescence spectrometry]Trace metals in microcrustaceans and Brazilian waterweed from a contaminated Chilean wetland using total reflection X-ray fluorescence spectrometry

North Patagonian lakes are characterized by their oligotrophic or oligo-mesotrophic status. These conditions bring with them, respectively, the presence of abundant mixotrophic ciliates and a low species number of crustacean zooplankton under oligotrophic status, and low numbers of mixotrophic ci...


De Los Ríos Escalante, PatricioWoelfl, StefanAcevedo, PatricioCastro, Manuel[CRUSTACEAN ZOOPLANKTON COMMUNITIES, MIXOTROPHIC CILILATES, AND OPTICAL PROPERTIES IN NORTH PATAGONIAN LAKES, INVESTIGATED BY REMOTE SENSING]CRUSTACEAN ZOOPLANKTON COMMUNITIES, MIXOTROPHIC CILILATES, AND OPTICAL PROPERTIES IN NORTH PATAGONIAN LAKES, INVESTIGATED BY REMOTE SENSING

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...


De Los Ríos Escalante, PatricioWoelfl, StefanSoto, Cristian[Experimental evidence for crustacean zooplankton grazing activity on mixotrophic ciliates]Experimental evidence for crustacean zooplankton grazing activity on mixotrophic ciliates

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 Rios-Escalante, PatricioWoelfl, 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

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