Spatial and temporal dynamics of a metalimnetic Cryptomonas peak
15 pages, 8 figures
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | artículo biblioteca |
| Published: |
Oxford University Press
1992-11
|
| Online Access: | http://hdl.handle.net/10261/173780 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
dig-icm-es-10261-173780 |
|---|---|
| record_format |
koha |
| spelling |
dig-icm-es-10261-1737802020-12-13T09:19:32Z Spatial and temporal dynamics of a metalimnetic Cryptomonas peak Gasol, Josep M. Guerrero, Ricardo Pedrós-Alió, Carlos 15 pages, 8 figures A metalimnetic peak of Cryptomonas phaseolus was studied during several stratification periods in Lake Cisó (Spain). We described the seasonal, spatial and diel dynamics of the peak, and tested the likelihood of several hypotheses to explain the mechanism of formation of the peak and the factors controlling the actual depth of the peak. The metalimnetic peak generally accounted for >60% of the lake phytoplanktonic biomass. Cryplomonas phaseolus was shown to be active at depth, growing at the metalimnion during the spring and remaining there, in a dynamic equilibrium where losses balanced production, through the stratification period. The upper limit of sulfide distribution delimited the exact depth of the peak at noon hours. The peak did not move following optimal light intensities; rather, it followed the depth oscillations of the oxygen-sulfide interface. Low sulfide concentrations were apparently tolerated and the protist moved inside the sulfide-rich part of the lake at night and during the winter. Metalimnetic algal populations behave differently from epilimnetic ones. A single species accounts for most of the biomass and production, and persists during all the stratification period. This indicates that the mechanisms currently believed to account for succession (competition and predation) do not operate efficiently in metalimnetic peaks. © 1992 Oxford University Press Peer Reviewed 2019-01-07T10:23:43Z 2019-01-07T10:23:43Z 1992-11 2019-01-07T10:23:43Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1093/plankt/14.11.1565 issn: 0142-7873 e-issn: 1464-3774 Journal of Plankton Research 14(11): 1565-1579 (1992) http://hdl.handle.net/10261/173780 10.1093/plankt/14.11.1565 https://doi.org/10.1093/plankt/14.11.1565 Sí none Oxford University Press |
| institution |
ICM ES |
| collection |
DSpace |
| country |
España |
| countrycode |
ES |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
dig-icm-es |
| tag |
biblioteca |
| region |
Europa del Sur |
| libraryname |
Biblioteca del ICM España |
| description |
15 pages, 8 figures |
| format |
artículo |
| author |
Gasol, Josep M. Guerrero, Ricardo Pedrós-Alió, Carlos |
| spellingShingle |
Gasol, Josep M. Guerrero, Ricardo Pedrós-Alió, Carlos Spatial and temporal dynamics of a metalimnetic Cryptomonas peak |
| author_facet |
Gasol, Josep M. Guerrero, Ricardo Pedrós-Alió, Carlos |
| author_sort |
Gasol, Josep M. |
| title |
Spatial and temporal dynamics of a metalimnetic Cryptomonas peak |
| title_short |
Spatial and temporal dynamics of a metalimnetic Cryptomonas peak |
| title_full |
Spatial and temporal dynamics of a metalimnetic Cryptomonas peak |
| title_fullStr |
Spatial and temporal dynamics of a metalimnetic Cryptomonas peak |
| title_full_unstemmed |
Spatial and temporal dynamics of a metalimnetic Cryptomonas peak |
| title_sort |
spatial and temporal dynamics of a metalimnetic cryptomonas peak |
| publisher |
Oxford University Press |
| publishDate |
1992-11 |
| url |
http://hdl.handle.net/10261/173780 |
| work_keys_str_mv |
AT gasoljosepm spatialandtemporaldynamicsofametalimneticcryptomonaspeak AT guerreroricardo spatialandtemporaldynamicsofametalimneticcryptomonaspeak AT pedrosaliocarlos spatialandtemporaldynamicsofametalimneticcryptomonaspeak |
| _version_ |
1777666844969140224 |