Biodiversity and spatial distribution of medusae in the Southern Patagonian Zone of the Magellan region

Sergio Palma


DOI: https://doi.org/10.3856/vol42-issue5-fulltext-21

Abstract


ABSTRACT. Epipelagic medusae collected in the Magellan region (Southern Patagonian Zone) during spring 2009 were analyzed. A total of 25 species of medusae were identified (23 hydromedusae and 2 scyphomedusae). The highest level of abundance of medusae was found in the Almirantazgo and Agostini fjords, and the Beagle Channel. 12 medusae species were recorded for the first time in the Magellan region. Six dominant species were found: Clytia simplex (19.8%), Rophalonema funerarium (16.2%), Aurelia aurita (15.9%), Bougainvillia muscoides (15.5%), Proboscidactyla stellata (8.9%) and Obelia spp. (6.0%). Most of the dominant species were collected in shallow strata (0-50 m), with less saline waters (<30), except for R. funerarium, which was mainly collected above depths of 25 m in more saline waters (30-33). These results confirm the success of several species in the colonization of the inland waters of the Southern Patagonian Zone.

 


Palma S. Biodiversity and spatial distribution of medusae in the Southern Patagonian Zone of the Magellan region. Lat. Am. J. Aquat. Res.. 2017;42(5). Available from: doi:10.3856/vol42-issue5-fulltext-21 [Accessed 22 Jan. 2019].
Palma, S. (2017). Biodiversity and spatial distribution of medusae in the Southern Patagonian Zone of the Magellan region. Latin American Journal of Aquatic Research, 42(5). doi:http://dx.doi.org/10.3856/vol42-issue5-fulltext-21