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Study of N and C cycles and the effect of UV radiation on microbial Antarctic communities Entry ID: CNDA-ESP_ANT1999-1319-E |
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Summary
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Abstract:
IN ENGLISH: The data collected were: -Study of the UV natural radiation effect on 3 different communities using filters with different wide radiation strip. -Samples to determinate the effect on the pigment composition, as photosynthetic character as photo-protector, just as in the community structure. -Study of the UV radiation effect on the rotifere population. -Experiment of the UV radiation effect on the artificial colonization of an artificial substrate with cyanobacterial microbial makers. -Study of the N cycle in different lakes -Descriptive study of different communities, with samples of each community, making for each community, microscopically studies of the species. EN ESPANOL: Los datos recogidos fueron: -Estudio del efecto de la radiacion UV natural en tres comunidades diferentes utilizando filtros con diferente ancho de banda de radiacion. -Muestras para la determinacion de los efectos en la composicion pigmentaria, tanto de caracter fotosintetico como fotoprotector, asi como en la estructura de la comunidad. -Estudio sobre el efecto de la radiacion UV en las poblaciones de rotiferos -Experimento del efecto de la radiacion UV en la colonizacion de un sustrato artificial por parte de cianobacterias formadoras de tapetes microbianos. -Estudio del ciclo de N en diferentes lagos. -Estudio descriptivo de diferentes comunidades, con muestras de cada comunidad realizandose estudios microscopicos de especies de cada comunidad. |
| N: -78.0 | S: -78.0 | E: -165.0 | W: -165.0 |
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Temporal Coverage
| Start Date: 2000-01-08 |
| Stop Date: 2000-02-13 |
Location Keywords
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CONTINENT
> ANTARCTICA
> MCMURDO ICE SHELF
GEOGRAPHIC REGION > POLAR |
Science Keywords
| OCEANS >OCEAN CHEMISTRY >PIGMENTS [Definition] |
| SPECTRAL/ENGINEERING >ULTRAVIOLET WAVELENGTHS >ULTRAVIOLET RADIANCE [Definition] |
| BIOLOGICAL CLASSIFICATION >BACTERIA/ARCHAEA [Definition] |
| BIOSPHERE >AQUATIC ECOSYSTEMS >LAKES [Definition] |
| BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >BIOLUMINESCENCE [Definition] |
| BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >PHOTOSYNTHESIS [Definition] |
| BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >BIOMASS DYNAMICS [Definition] |
| BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >RESPIRATION RATE [Definition] |
| BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >OXYGEN DEMAND [Definition] |
| BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE [Definition] |
ISO Topic Category
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BIOTA
GEOSCIENTIFIC INFORMATION |
Platform
| OBSERVATORIES [Information] |
Instrument
| VISUAL OBSERVATIONS [Information] |
Keywords
| BACTERIAL PRODUCTION |
| ULTRAVIOLET RADIATION |
| BIOMASS |
| NITROGEN FIXATION |
| CIANOBACTERIA |
Originating Center
| Universidad Autonoma de Madrid |
Data Center
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Centro Nacional de Datos Antarticos, National Antarctic Data Centre, Comite Polar Espanol, Spain
[Information]
Data Center URL: http://hielo.igme.es/
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Distribution
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Distribution_Media:
CD-ROM;DAT
Distribution_Format: ASCII;BINARY |
Personnel
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EDUARDO
FERNANDEZ VALIENTE Role: INVESTIGATOR Phone: +34914978186 Fax: +34914978344 Email: eduardo.fernandez at uam.es Contact Address: Departamento de Biologia. Facultad de Ciencias Univeridad Autonoma de Madrid City: Madrid Postal Code: 28049 Country: SPAIN |
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OSCAR
BERMUDEZ MOLINA Role: DIF AUTHOR Phone: +34913495889 Fax: +34913495929 Email: o.bermudez at igme.es Contact Address: Centro Nacional de Datos Antarticos Instituto Geologico y Minero de Espana C/ Rios Rosas 23 City: Madrid Postal Code: E-28003 Country: SPAIN |
Publications/References
QUESADA A, y FERNANDEZ VALIENTE E The role of N2 fixation in microbial mats in Antartic freshwater ecosystems. En: W. Davison; C. Howard Williams y P. Broady (Eds). Antartic Ecosystems: Models for Wider Ecological Understanding. pp 41-46. New Zealand Natural Sciences. 2000
FERNANDEZ VALIENTE E, QUESADA A, HOWARD-WILLIAMS C y HAWES I. N2-fixation in cyanobacterial mats from ponds on the McMurdo Ice Shelf, Antarctica. Microbial Ecol. 42:338-349 (2001).
QUESADA A, SANCHEZ CONTRERAS M. y FERNANDEZ VALIENTE E.. Tolerance of Antartic cyanobacterial mats to natural UV radiation. Nova Hedwigia. 123: 275-290 (2001)
DE LOS RIOS A, ASCASO C, WIERZCHOS J, FERNANDEZ VALIENTE E Y QUESADA A.
Microstructural characterization of cyanobacterial mats from the McMurdo Ice Shelf, Antarctica. Appl. Environ. Microbiol. 70:569-580 (2004)
FERNANDEZ VALIENTE E, QUESADA A, HOWARD-WILLIAMS C y HAWES I. N2-fixation in cyanobacterial mats from ponds on the McMurdo Ice Shelf, Antarctica. Microbial Ecol. 42:338-349 (2001).
QUESADA A, SANCHEZ CONTRERAS M. y FERNANDEZ VALIENTE E.. Tolerance of Antartic cyanobacterial mats to natural UV radiation. Nova Hedwigia. 123: 275-290 (2001)
DE LOS RIOS A, ASCASO C, WIERZCHOS J, FERNANDEZ VALIENTE E Y QUESADA A.
Microstructural characterization of cyanobacterial mats from the McMurdo Ice Shelf, Antarctica. Appl. Environ. Microbiol. 70:569-580 (2004)
Creation and Review Dates
DIF Creation Date:
2006-01-20
Last DIF Revision Date:
2006-01-20
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