Effects of the availability of energetic and protective resources on the abundance of daphniids (Cladocera, Daphniidae) in Chilean Patagonian Lakes (39 degrees-51 degrees S)
| dc.contributor.author | De Los Ríos Escalante, Patricio | |
| dc.contributor.author | Soto, Doris | |
| dc.date | 2006 | |
| dc.date.accessioned | 2021-04-30T16:32:55Z | |
| dc.date.available | 2021-04-30T16:32:55Z | |
| dc.description.abstract | The lacustrine zooplankton of Chile is characterized by a low abundance of daphniid cladocerans and a predominance of calanoid copepods, thus making up a zooplankton community quite different from that described for North American lakes. To explain this pattern, this study investigates the role of the oligotrophy, and the resulting high transparency of a considerable number of locations. Due to low levels of dissolved organic carbon, viz., Daphniidae are exposed to ultraviolet radiation. Chilean lakes located between 39 degrees and 51 degrees S were studied, and maximum depth, mixing depth, trophic status, and dissolved organic carbon concentrations were measured and considered. The results obtained revealed that daphniids were abundant in oligo-mesotrophic lakes with shallow mixing depth. Thus, daphniid abundance is directly associated with chlorophyll-a concentration as an energetic resource, but also with sufficient depth, because this last condition provides protection against the penetration of ultraviolet radiation. | |
| dc.identifier.citation | CRUSTACEANA,Vol.79,23-32,2006 | |
| dc.identifier.uri | http://repositoriodigital.uct.cl/handle/10925/2905 | |
| dc.language.iso | en | |
| dc.publisher | BRILL | |
| dc.source | CRUSTACEANA | |
| dc.title | Effects of the availability of energetic and protective resources on the abundance of daphniids (Cladocera, Daphniidae) in Chilean Patagonian Lakes (39 degrees-51 degrees S) | |
| dc.type | Article | |
| uct.catalogador | WOS | |
| uct.indizacion | SCI |