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Are the deep-sea faunas of the north and south Atlantic connected? a study based on the taxonomy of caudofoveate aplacophorans (Mollusca)

Grant number: 18/17718-5
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): June 01, 2019
Effective date (End): March 31, 2020
Field of knowledge:Biological Sciences - Zoology - Taxonomy of Recent Groups
Principal Investigator:Flávio Dias Passos
Grantee:Marcel Sabino Miranda
Supervisor: Ellen e Strong
Host Institution: Instituto de Biologia (IB). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Research place: Smithsonian National Museum of Natural History, United States  
Associated to the scholarship:17/01081-5 - Caudofoveta (Mollusca, Aplacophora) from Brazilian Northeast: taxnomy, distribution and ecological aspects, BP.DR


Caudofoveata is an important component of the deep-sea benthos, being one of the dominant groups in some locations, and having species with extensive distributions. Despite this importance, the Caudofoveata are little known, especially regarding the diversity and distribution patterns of its species from the South Atlantic Ocean. Recently, through the analysis of samples collected in the Brazilian Northeastern coast, about 13 species were obtained and are currently under studies. Some of them are very similar with species from USA, Gulf of Mexico and Caribbean seas, and this similarity triggered a necessity of a comparison among them, by a detailed examination of the material deposited in the National Museum of Natural History (USNM), including the types of most species described from the North Atlantic. Thus, by this comparison this BEPE-DR proposal aims to evaluate the conectivity between the Northwestern and Southwestern Atlantic of caudofoveate aplacophoran faunas, through the description of new occurrences from Brazil, and also the new, up to now unknown new species. The material from the USNM collection will be analyzed from the external morphology, as well as by the observation of the many detailed characters of the oral disc, radula and sclerites through the scanning electron microscopy. For the same species found in the Brazilian and in the north Atlantic, distribution models will be applied to evaluate if these can occur in other areas. This study will provide valuable information about the taxonomy and geographical distributions of an important and little known group from the deep sea benthic fauna.

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Scientific publications (5)
(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)
HERNAEZ, PATRICIO; MIRANDA, MARCEL S.; TAVARES, MARCOS. A new species of Biffarius Manning & Felder, 1991 (Decapoda: Axiidea: Callianassidae) from the intertidal coast of northeastern Brazil. Zootaxa, v. 4759, n. 4, p. 575-583, . (15/09020-0, 18/17718-5)
PASSOS, FLAVIO DIAS; FASSINA, PAOLA VISNARDI; CORREA, PAULO VINICIUS FERRAZ; MIRANDA, MARCEL SABINO. Separated from the cradle: A new species of Falcidens (Mollusca, Aplacophora, Caudofoveata) reveals weird patterns of distribution in the deep-sea. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS, v. 186, p. 12-pg., . (18/17718-5, 18/06347-6)
PASSOS, FLAVIO DIAS; FERRAZ CORREA, PAULO VINICIUS; MIRANDA, MARCEL SABINO. Better Alone Than in Bad Company New Species of Caudofoveate Limifossorid (Mollusca, Aplacophora) Unravels Patterns of Distribution Hidden in the Deep Atlantic. FRONTIERS IN MARINE SCIENCE, v. 8, . (18/10313-0, 18/17718-5, 18/06347-6, 17/01081-5)
HERNAEZ, PATRICIO; MIRANDA, MARCEL S.; RIO, JULIANA P. P.; PINHEIRO, MARCELO A. A.. A new Callichirus ghost shrimp species from the south-western Atlantic, long confounded with C. major (Say, 1818) (Decapoda: Axiidea: Callichiridae). Journal of Natural History, v. 56, n. 9-12, p. 31-pg., . (15/09020-0, 18/17718-5)

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