Large-scale geographic patterns of pelagic copepods in the southwestern South Atlantic
In: Journal of Marine Systems. Elsevier: Tokyo; Oxford; New York; Amsterdam. ISSN 0924-7963; e-ISSN 1879-1573, more
|  |
| Keyword |
|
| Author keywords |
Zooplankton; Ecoregions; Water masses; Marine fronts; Southwestern South Atlantic; Argentina; Uruguay |
| Authors | | Top |
- Acha, E.M.
- Viñas, M.D.
- Derisio, C.
|
|
|
| Abstract |
We compiled an extensive dataset of copepod presence/absence data to define ecoregions in the southwestern South Atlantic (33°S–55°S) and to examine their relationships to water mass characteristics. We also investigated the role of mesoscale fronts in determining the boundaries of the ecoregions. Finally, we compared copepod distributions with previously defined biogeographical provinces in the southwestern South Atlantic. The regional copepod community is organized into six assemblages that occupy distinct areas of the shelf, the shelfbreak, and the oceanic realm. These areas are characterized by different water masses. In general, the spatial configuration of the ecoregions matches that of the previously defined regional biogeographic provinces and marine fronts seem to act as boundaries between the ecoregions. |
|
