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De Los Ríos Escalante, PatricioBarile Sanhueza, JuanEscudero, Manuel[Ecology of benthic crustaceans in the Tolten river (39°S, Araucanía Región, Chile)]Ecology of benthic crustaceans in the Tolten river (39°S, Araucanía Región, Chile)

Calanoid copepods are abundant in South American inland waters and include widespread species, such as Boeckella gracilipes (Daday, 1902), which occurs from the Ecuador to Tierra del Fuego Island. This species occurs under various environmental conditions, and is found in oligotrophic lakes in Pa...

Los copépodos calanoideos son abundantes en aguas continentales sudamericanas e incluyen especies de amplia distribución geográfica como Boeckella gracilipes (Daday, 1902) que se encuentra desde Ecuador hasta la isla de Tierra del Fuego. Esta especie vive bajo varias condiciones ambientales, y se...


De Los Ríos Escalante, Patricio[Morphometric differences in two calanoid sibling species, Boeckella gracilipes and B. titicacae (Crustacea, Copepoda)][Diferencias morfométricas en dos especies hermanas Boeckella gracilipes y Boeckella titicacae (Crustacea, Copepoda)]Diferencias morfométricas en dos especies hermanas Boeckella gracilipes y Boeckella titicacae (Crustacea, Copepoda)

The current increase of penetration of natural ultraviolet radiation (UVR) in southern South America affects water bodies because the UVR can penetrate the water column. In this scenario, the zooplankton develops photoprotective strategies such as vertical migrations against UVR or synthesis of p...


De Los Ríos Escalante, PatricioAcevedo, P.Verdugo, K.[Survival of Ceriodaphnia dubia (Crustacea, Cladocera) exposed to different screens against natural ultraviolet radiation]Survival of Ceriodaphnia dubia (Crustacea, Cladocera) exposed to different screens against natural ultraviolet radiation

The presence of alloctone bacteria is considered as one of the more important biological pollutants of water bodies, existing one close relation between the fecal contamination indicators and the existence of urban and industrial zones. In the present study we utilized indicators of fecal contami...


Rivera Jara, ReinaldoDe Los Ríos Escalante, PatricioContreras Gallardo, Ángel[Relations fecal coliforms/ fecal Streptococci as indicators of the origin of fecal pollution in urban and rural water bodies of Temuco, Chile]Relations fecal coliforms/ fecal Streptococci as indicators of the origin of fecal pollution in urban and rural water bodies of Temuco, Chile

The crustacean zooplankton in Chilean coastal lagoons has been poorly studied, and the scarce studies available would indicate the presence of low numbers of species, variable according to the degree of oligotrophy. The aim of the present study was to give a first characterization of crustacean z...


De Los Ríos Escalante, PatricioCarreño, Eriko[Crustacean zooplankton communities in shallow coastal ephemeral pools (Nigue, 39°S, Araucanía Región, Chile)]Crustacean zooplankton communities in shallow coastal ephemeral pools (Nigue, 39°S, Araucanía Región, Chile)

The zooplankton assemblages in Chilean Patagonian lakes are characterised mainly by their low biodiversity and high predominance of calanoids copepods, a pattern that has been studied for large and deep lakes between 38-51° S, and shallow ponds at 51° S. The aim of the present study was analyse t...

As comunidades zooplantônicas em lagos chilenos são caracterizadas, principalmente, por sua baixa biodiversidade e alta predominância de copépodos calanoides, um padrão que tem sido estudado em lagos grandes e profundos entre 38-51° S, e lagoas rasas em 51° S. O objetivo do presente estudo foi an...


De Los Ríos Escalante, PatricioHauenstein Barra, EnriqueRomero Mieres, Mario[Composição de comunidades de microcustáceos e variáveis ambientaisem lagos e lagoas da região Andina - Sul do Chile (37-39° S)][Microcrustacean assemblages composition and environmental variables in lakes and ponds of the Andean region - South of Chile (37-39° S)]Microcrustacean assemblages composition and environmental variables in lakes and ponds of the Andean region - South of Chile (37-39° S)

The present study assessed the percentage of survival and metamorphosis of larval stages of Caligus rogercresseyi (Boxshall and Bravo, 2000) nauplius I, nauplius II to and nauplius II to copepodite, conducting bioassays in triplicate with 50 larvae each, nauplius I or nauplius II, at temperature ...

O presente estudo avaliou a percentagem de sobrevivência e metamorfose dos estádios larvais de Caligus rogercresseyi (Boxshall and Bravo, 2000) nauplio I, nauplio II ae nauplio II a copepodita, realizando bioensaios em triplicado com 50 larvas cada, nauplio I ou nauplio II, À temperatura de 12 °C...


Mardones, A.Gajardo, V.Pizarro, M. I.Augsburger, A.Vega, R.Encina, F.Pichara, C.De Los Ríos Escalante, Patricio[Avaliação de sobrevivência e metamorfose de larvas de Caligus rogercresseyi (Boxshall and Bravo, 2000) (Crustacea, Copepoda) no Chile, dependendo da temperatura, salinidade e oxigênio][Evaluation of survival and metamorphosis of larvae of Caligus rogercresseyi (Boxshall and Bravo, 2000) (Crustacea, Copepoda) in Chile, depending on temperature, salinity and oxygen]Evaluation of survival and metamorphosis of larvae of Caligus rogercresseyi (Boxshall and Bravo, 2000) (Crustacea, Copepoda) in Chile, depending on temperature, salinity and oxygen

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, PatricioBayly, 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, PatricioCarreño Abarzúa, ErikoHauenstein Barra, EnriqueVega, 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

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