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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.)

A comparative study of populations of Ectopleura crocea and Ectopleura ralphi (Hydrozoa, Tubulariidae) from the Southwestern Atlantic Ocean

Imazu, Mauricio Antunes [1] ; Ale, Ezequiel [2] ; Nestor Genzano, Gabriel [3] ; Marques, Antonio Carlos [1]
Total Authors: 4
[1] Univ Sao Paulo, Inst Biociencias, Dept Zool, BR-05508090 Sao Paulo - Brazil
[2] Univ Sao Paulo, Inst Biociencias, Dept Genet & Biol Evolut, BR-05508090 Sao Paulo - Brazil
[3] Univ Nacl Mar del Plata, Mar del Plata CONICET, Inst Invest Marinas & Costeras IIMyC, Estn Costera, Dept Ciencias Marinas, Fac Ciencias Exactas & Nat, Mar Del Plata, Buenos Aires - Argentina
Total Affiliations: 3
Document type: Journal article
Source: Zootaxa; v. 3753, n. 5, p. 421-439, JAN 9 2014.
Web of Science Citations: 4

Ectopleura crocea (L. Agassiz, 1862) and Ectopleura ralphi (Bale, 1884) are two of the nominal tubulariid species recorded for the Southwestern Atlantic Ocean (SWAO), presumably with wide but disjunct geographical ranges and similar morphologies. Our goal is to bring together data from morphology, histology, morphometry, cnidome, and molecules (COI and ITS1+5.8S) to assess the taxonomic identity of two populations of these nominal species in the SWAO. We have observed no significant difference or distributional patterns between the so-called Brazilian E. ralphi and Argentine E. crocea for both morphological and molecular data. Therefore, SWAO populations of Ectopleura belong to the same species. In a broader view, it is difficult to find decisive character distinguishing E. crocea from E. ralphi, and both species have indeed recently been synonymized, with the binomen E. crocea having nomenclatural priority. Geographically broader genetic analysis should be carried out in order to test the validity of this synonymy because taxonomical procedures such as studying type specimens and documenting broad phenotypic variability have not yet been conducted. (AU)

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
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