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Nematodes of the genus Anisakis have marine fishes as intermediate hosts. One of these hosts is Tyrsites atun, an important fishery resource in Chile between 38 and 41°S. This paper describes the frequency and number of Anisakis nematodes in the internal organs of Thyrsites atun. An analysis base...

Nematóides do gênero Anisakis têm nos peixes marinhos seus hospedeiros intermediários. Um desses hospedeiros é Thyrsites atun, um importante recurso pesqueiro no Chile entre 38 e 41°S. Este artigo descreve a freqüência e o número de nematóides Anisakis nos órgãos internos de Tyrsites atun. Uma an...


Peña-Rehbein, PatricioDe Los Ríos Escalante, Patricio[Uso de distribuição binomial negativa para descrever a presença de Anisakis em Thyrsites atun.][Use of negative binomial distribution to describe the presence of Anisakis in Thyrsites atun]Use of negative binomial distribution to describe the presence of Anisakis in Thyrsites atun

The lacustrine ecosystems located in the Andes Mountains in the Atacama desert and in the Chilean Southern Patagonia are characterized by their high levels of salinity, the zooplankton in these sites are characterized by a marked predominance of calanoid copepods at low or intermediate salinity l...


De Los Ríos Escalante, Patricio[Richness and Distribution of Zooplanktonic Crustacean Species in Chilean Andes Mountains and Southern Patagonia Shallow Ponds]Richness and Distribution of Zooplanktonic Crustacean Species in Chilean Andes Mountains and Southern Patagonia Shallow Ponds

De Los Ríos Escalante, Patricio[Ecosistemas acuáticos de islas oceánicas de Chile: Conservación de microfauna endémica y el rol de especies exóticas en el control biológico de enfermedades tropicales][Freshwater ecosystems in oceanic islands of Chile: Conservation of endemic microfauna and the role of exotic species in the biological control of tropical diseases]Freshwater ecosystems in oceanic islands of Chile: Conservation of endemic microfauna and the role of exotic species in the biological control of tropical diseases

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, 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

Figueroa Hernández, DavidDe Los Ríos Escalante, Patricio[First report of Craspedacusta sowerbii (Cnidaria) (Lankester, 1880) for Patagonian waters (38° S, Chile): A possible presence of invasive species and its potential ecological implications]First report of Craspedacusta sowerbii (Cnidaria) (Lankester, 1880) for Patagonian waters (38° S, Chile): A possible presence of invasive species and its potential ecological implications

The presence of the calanoid copepod Boeckella gracilis (Daday, 1902) in Chilean seasonal pools has been only poorly studied as yet. The aim of the present study thus is to investigate the role of conductivity and temperature on the relative and absolute abundance of B. gracilis in seasonal coast...


De Los Ríos Escalante, Patricio[Abundance of Boeckella gracilis (Daday, 1902) (Copepoda, Calanoida) in seasonal coastal pools in the Araucania region (38°S, Chile)]Abundance of Boeckella gracilis (Daday, 1902) (Copepoda, Calanoida) in seasonal coastal pools in the Araucania region (38°S, Chile)

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, PatricioRoa, 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, FranciscoContreras, AngelDe 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)

A healthy body of freshwater can provide numerous benefits to the society, although currently, the degradation of such ecosystems has been increased due to the establishment of urban areas along its riverbanks. In this study we analyzed the spatial effect of these zones on the water quality, usin...


Correa-Araneda, F.Rivera Jara, ReinaldoUrrutia Estrada, JonathanDe Los Ríos Escalante, PatricioContreras, A.Encina Montoya, Francisco[Efectos de una zona urbana sobre la comunidad de macroinvertebrados bentónicos de un ecosistema fluvial del sur de Chile][Effects of an urban zone on the benthonic macroinvertebrate community of a fluvial ecosystem in southern Chile]Effects of an urban zone on the benthonic macroinvertebrate community of a fluvial ecosystem in southern Chile

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