Results 41 to 50 of about 934 (164)

Lethal effects of ultraviolet radiation under different concentrations of dissolved organic carbon on Neobosmina chilensis (Daday, 1902) (Cladocera, Bosminidae) [PDF]

open access: yes, 2012
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.

core   +1 more source

Potential heterogeneity in crustacean zooplankton assemblages in southern chilean saline lakes

open access: yesBrazilian Journal of Biology
The Chilean saline lakes are distributed mainly in the Atacama desert in northern Chile and the southern Patagonian plains. The scarce studies are restricted mainly to northern Chilean saline lakes, and these revealed that the main component in these ...
P De los Rios-Escalante, G. Gajardo
doaj   +1 more source

Environmental and zooplankton parameter changes during the drying of a saline shallow temporary lake in central Argentina

open access: yesUniversitas Scientiarum, 2017
Central Argentina has numerous saline lakes sustained by groundwater sources and rainfall. These lakes are temporary and experience significant changes in water level and salinity, depending on wet and dry climate cycles.
Alicia María Vignatti   +3 more
doaj   +1 more source

Distribución y diversidad de crustáceos zooplanctónicos en lagos y lagunas de la región de la Araucanía, Chile: Orden Calanoida y Cyclopoida (Maxillopoda, Copepoda) [PDF]

open access: yes, 2015
Los ensambles zooplanctónicos en los ecosistemas acuáticos chilenos se caracterizan por presentar un bajo número de especies y un alto predominio de copépodos.

core  

EL ZOOPLANCTON DE TRES LAGOS SOMEROS DE DIFERENTE SALINIDAD Y ESTADO TROFICO EN LA REGION SEMIARIDA PAMPEANA (ARGENTINA) ZOOPLANKTON OF THREE SHALLOW LAKES OF DIFFERENT SALINITY AND TROPHIC STATE IN THE SEMIARID PAMPEAN REGION (ARGENTINA)

open access: yesGayana, 2007
El Valle Argentino es una formación medanosa ubicada en el centro de la provincia de La Pampa, en la región semiárida central de Argentina, en el que se encuentra un grupo de lagos someros, alimentados por lluvias, de distintas características físico ...
Alicia Vignatti   +2 more
doaj  

Zooplankton diversity of a protected and vulnerable wetland system in southern South America (Llancanelo area, Argentina)

open access: yesInternational Aquatic Research, 2016
In arid regions, climatic conditions exert a great control on the aquatic systems present, but recent changes in climate have produced an enhanced salinization of the aquatic environments located there.
D. Sabina D’Ambrosio   +2 more
doaj   +1 more source

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 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 habitat

open access: yesLatin American Journal of Aquatic Research, 2010
The crustacean zooplankton of Chilean inland waters are characterized by abundant calanoid copepods, mainly from the gemís Boeckella. The present study aims to update the distribution of Boeckella gracilis in the inland waters of the Araucania region (38-
Patricio De los Ríos-Escalante   +3 more
doaj  

Zooplankton richness, abundance and biomass of two hypertrophic shallow lakes with different salinity [PDF]

open access: yes, 2012
The zooplankton of lakes is controlled by biological and physico-chemical parameters. Among the former, predation by fish can determine the replacement of large-sized species by small-sized ones and among the latter, salinity exerts negative effects on ...
Cabrera, Gabriela Cecilia   +3 more
core  

Distribución y diversidad de Cladóceros (Sididae, Daphniidae, Bosminidae y Chydoridae) en la región de la Araucanía (38º-39ºS) [PDF]

open access: yes, 2015
Los cuerpos de agua de Chile se caracterizan por la presencia de tramas tróficas sencillas (De los Ríos-Escalante, 2003) y un bajo número de especies zooplanctonicas, siendo dominante los copépodos calanoideos, específicamente los géneros Boeckella y ...

core   +1 more source

Estado de conocimiento de los crustáceos zooplanctónicos dulceacuícolas de Chile Current state of knowledge of freshwater zooplanktonic crustacea of Chile

open access: yesGayana, 2006
Chile se caracteriza por presentar un marcado gradiente geográfico latitudinal y altitudinal. En él es posible encontrar diferentes cuerpos de agua continentales, cuya diversidad se refleja en la composición de especies zooplanctónicas. En este gradiente
Lorena Villalobos
doaj  

Home - About - Disclaimer - Privacy