Diversity and connectivity of polychaetes in different habitats of the Santos Basin deep waters

• Grant number: 19/18136-2
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: December 01, 2019
• End date: February 01, 2024
• Field of knowledge: Physical Sciences and Mathematics - Oceanography - Biological Oceanography
• Principal Investigator: Paulo Yukio Gomes Sumida
• Grantee: Gilberto Bergamo Neto
• Host Institution: Instituto Oceanográfico (IO). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated scholarship(s): 22/11296-7 - Delimiting populations: connectivity and population genomics of polychaetes from different benthic habitats of the deep-sea, BE.EP.DR

Abstract

The Santos Basin presents a wide diversity of environments, including the ocean floor, pockmarks, salt diapirs and carbonate mounds. Polychaetes are the most diverse and abundant invertebrates in all of these habitats, with a unique composition of species in each environment, but with some species presenting wide distribution and shared between different habitats. Therefore, the present project has the objective of characterize the polychaete communities of different habitats using morphological, molecular and ecological data of the specimens, as well as a population genomic study of the well-distributed species, in order to understand the connectivity of the different environments. Material used was collected at project BiOil (Biology and Geochemistry of Oil and Gas Seepages) and project Talude (Feições morfológicas do talude continental da margem Sudeste do Brasil: tectônica ativa versus condições oceanográficas modernas FAPESP 14/08266-2). Characterize will be complemented by the formal description of the new species to science using all available data, including the availability of the molecular data of all species whenever possible, filling the important gap at the knowledge of the deep sea species of the Santos Basin, that mostly lack published molecular data. Data of the mitochondrial (COI and 16S) and nuclear genes (18S, 28S, ITS-1 and ITS-2) will be used to conduct the population genomics study that will include phylogenetic analyses, using available molecular data of close related species, taken from molecular databases, as well as haplotype network analyses, in order to understand the connectivity between different polychaete populations. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BERGAMO, GILBERTO; CARRERETTE, ORLEMIR; SHIMABUKURO, MAURICIO; SANTOS, CINTHYA S. G.; SUMIDA, PAULO Y. G.. Revealing a new eyeless Nereis (Nereididae: Annelida) clade from deep-sea organic falls. ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY, v. N/A, p. 31-pg., 2023-09-26. (11/50185-1, 17/04098-6, 19/18136-2)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

BERGAMO NETO, Gilberto. Diversity and Connectivity of polychaetes in different habitats of the Santos Basin deep waters. 2024. Doctoral Thesis - Universidade de São Paulo (USP). Instituto Oceanográfico (IO/DIDC) São Paulo.