Data · collection
EFFECTS OF UV-RADIATION AND HERBIVORY ON PHYSIOLOGY, STRUCTURE SUCCESSION OF BENTHIC MICRO-MACROALGAL SPECIES OF POTTER COVE (SOUTH SHETLAND, ANTARCTICA)
Listed in NASA Earthdata CMR
ENGLISH Due to the depletion of the stratospheric ozone layer, solar ultraviolet-B radiation is increasing on the Earth's surface.
Description
UV-B radiation has demonstrated to be an environmental stress factor that can cause a harmful effect on the physiology and development of organisms. One of the most particularly affected areas is the Antarctic region.
The overall objective of this study is the estimation of the impact of UV radiation on benthic organisms in Potter Cove (South Shetlands, Antarctica). The successional patterns of macro and microalgal communities will be investigated in field experiments under different UV radiation conditions, and in the absence or presence of grazers. The experiments will be carried out on artificial substrata which will be placed in the mesolittoral and sublittoral zones in Potter Cove.
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This project has started in October 2003 and it is planned to start the activities of the second year in October 2004.The results will contribute to evaluate the effect of UV radiation on the structure and dynamics of the benthic primary producers community and to obtain valid information for the preservation of marine Antarctic ecosystem. SPANISH La disminucion de la concentracion del ozono estratosferico ha provocado el incremento de la radiacion ultravioleta B (UV-B) sobre la superficie de la tierra.
Esta ultima constituye un factor de estres ambiental que puede danar a los organismos actuando sobre su fisiologia y desarrollo. Una de las regiones mas afectadas por este fenomeno es la Antartida. Mediante la implementacion de este proyecto se propone el estudio de la incidencia de la radiacion UV sobre los diferentes organismos bentonicos de Caleta Potter (Shetland del Sur, Antartida).
Su objetivo es conocer los patrones de colonizacion de las micro y macroalgas bajo diferentes condiciones de radiacion, en presencia y ausencia de herbivoros sobre sustrato artificial mediante la utilizacion de un experimento de sucesion ubicado en el mesolitoral y sublitoral de Caleta Potter El presente proyecto se inicio en Octubre de 2003 y se preve el comienzo del segundo ano para Octubre de 2004. La informacion obtenida contribuira a evaluar el efecto de la radiacion UV sobre la estructura y dinamica de la comunidad de productores primarios bentonicos aportando conocimientos para la preservacion del ecosistema marino antartico.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214620700-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214620700-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Algae · Benthic · Grazing Dynamics/Plant Ecology · Macroalgae (Seaweeds) · Microalgae · Not provided · Photosynthesis · Phytoplankton · Plants · Ultraviolet Radiation
- Inferred from text
- Atmospheric sciences 73%
Provenance · 1 source records, 17 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214620700-SCIOPS | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3701 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-radiation/ultraviolet-radiation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/plants | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/plants/algae | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/plants/macroalgae-seaweeds | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/plants/microalgae | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecological-dynamics/community-dynamics/grazing-dynamics-plant-ecology | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecological-dynamics/ecosystem-functions/photosynthesis | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/aquatic-ecosystems/plankton/phytoplankton | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecosystems/marine-ecosystems/benthic | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |