DISTRIBUTION AND BIOMASS OF RUPPIA FILIFOLIA (PHIL.) SKOTTSBERG, (RUPPIACEAE) IN SKYRING SOUND, SUB-ANTARCTIC ECOREGION OF MAGALLANES, CHILE
Ruppia filifolia is the seagrass with the world’s southernmost distribution and a species about which even the most fundamental aspects of its biology and ecology are not known. Presence, bathymetric distribution, and biomass of R. filifolia meadows in Skyring sound (sub-antarctic ecoregio...
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| Autores principales: | , , , |
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| Lenguaje: | English |
| Publicado: |
Universidad de Magallanes
2013
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| Materias: | |
| Acceso en línea: | http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2013000100008 |
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| Sumario: | Ruppia filifolia is the seagrass with the world’s southernmost distribution and a species about which even the most fundamental aspects of its biology and ecology are not known. Presence, bathymetric distribution, and biomass of R. filifolia meadows in Skyring sound (sub-antarctic ecoregion of Magallanes, Chile) were evaluated through a remotely operated vehicle (ROV) survey, and direct verification and sampling by divers. The littoral of Skyring sound is surrounded by patchy R. filifolia meadows to a depth of 5.3 m in bands 100-160 m wide. R. fillfolla achieved a biomass of 80 g dry weight m-2, a rhizomes plus roots to leaves biomass ratio of 1.6 to 1.9 and a density of 2.000 shoots m-2. Possible relevance of meadows formed by this seagrass species in the functioning of the shallow coastal ecosystem of Skyring sound is discussed. |
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