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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Environment and life cycles influence distribution patterns of hydromedusae in austral South America

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Rodriguez, Carolina S. [1] ; Marques, Antonio C. [2, 3] ; Mianzan, Hermes W. [4] ; Tronolone, Valquiria B. [3, 2] ; Migotto, Alvaro E. [3] ; Genzano, Gabriel N. [1, 5]
Total Authors: 6
[1] Univ Nacl Mar Del Plata, Dept Ciencias Marinas, Funes 3350, RA-7600 Mar Del Plata, Buenos Aires - Argentina
[2] Univ Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo - Brazil
[3] Univ Sao Paulo, Ctr Biol Marinha, Sao Sebastiao - Brazil
[4] INIDEP, Mar Del Plata, Buenos Aires - Argentina
[5] Consejo Nacl Invest Cient & Tecn, UNMdP, Inst Invest Marinas & Costeras IIMyC, Mar Del Plata, Buenos Aires - Argentina
Total Affiliations: 5
Document type: Journal article
Source: MARINE BIOLOGY RESEARCH; v. 13, n. 6, p. 659-670, 2017.
Web of Science Citations: 1

We analysed hydromedusa assemblages of South America (from 22 degrees S to 56 degrees S and from 040 degrees W to 080 degrees W), their association with water masses and the influence of the life cycle on medusa distributions. The geographic distribution of 130 species of hydromedusae was compiled from literature reports (62 publications between 1913 and 2012). Seven areas were defined: Atlantic Magellanic, Argentinean, Pacific intermediate zone, Pacific Magellanic, Peruvian-Chilean, South Brazilian and Oceanic. The variance of the species-environment relationship was explained by depth and temperature. Distribution patterns of Atlantic hydromedusae are associated with neritic water masses, supporting previously proposed biogeographical provinces. Assemblages on the Pacific side of South America are under the influence of the Humboldt Current system, with a break in species distribution around Chiloe Island. Only the oceanic assemblage contained the same species in both the Pacific and Atlantic zones. We found that meroplanktonic medusae contributed more to define the neritic assemblages, while the oceanic assemblage was better defined by holoplanktonic medusae. Therefore, our data suggest that meroplanktonic hydromedusae appeared to be more restricted in distribution than holoplanktonic ones. (AU)

FAPESP's process: 13/50484-4 - Biodiversity and distribution patterns of the Medusozoa form the South-Western Atlantic
Grantee:Antonio Carlos Marques
Support type: Regular Research Grants
FAPESP's process: 12/21583-1 - Systematics and evolutionary history of Scleractinia (Cnidaria, Anthozoa)
Grantee:Alvaro Esteves Migotto
Support type: Regular Research Grants
FAPESP's process: 04/09961-4 - Biodiversity, evolution, endemism and conservation of the Medusozoa from the Southwestern Atlantic
Grantee:Antonio Carlos Marques
Support type: Research Projects - Thematic Grants
FAPESP's process: 11/50242-5 - Dimensions of marine life: patterns and process of diversifications in planktonic and benthic cnidarians
Grantee:Antonio Carlos Marques
Support type: BIOTA-FAPESP Program - Thematic Grants