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| Author(s): |
Orlemir Carrerette dos Santos
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) |
| Defense date: | 2015-03-06 |
| Examining board members: |
João Miguel de Matos Nogueira;
Antonia Cecilia Zacagnini Amaral;
Marcelo Veronesi Fukuda;
Paulo da Cunha Lana;
Paulo Cesar de Paiva
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| Advisor: | João Miguel de Matos Nogueira |
| Abstract | |
Terebeliforms and sabelids are sedentary polychaetes, very abundant and diverse in marine environments. Although are abundant, and often conspicuous worms, the knowledge of fauna of terebeliforms and sabellids occurring off the Brazilian coast is still poor. However, those studies are concentrated mostly on the southern/southeastern regions, while in others regions of the Brazilian coast the polychaete fauna occurring there is virtually unknown, as the northeastern coast, with few studies conducted by foreign researchers during the 70s. In addition, there are many habitats virtually still unexplored along the litoral of Brazil, as banks of calcareous algae (rhodolith beds) and mainly in deep-water environments, once few studies on the benthic fauna were conducted in the continental shelf region (below 50 m) and even fewer between the latter and the continental slope (∼3.000 m). In this context, this thesis is one of the first taxonomic studies dealing specifically with Terebelliformia (Terebellidae, Thelepodidae, Polycirridae and Trichobranchidae) and Sabellidae occuring along the Brazilian coast, from Sao Paulo to Paraíba, considering several types of substrates, from consolidated and unconsolidated, to biological substrates such as coral reefs and rhodolith beds. Moreover, it is the first conducted in the country covering terebelliformes and sabellids from deep waters. In total, approximately 5,500 were analyzed, belonging to 51 species, being 6 species of Polycirridae, 15 of Terebellidae, 7 species of Thelepodidae, 5 of Trichobranchidae and finally 18 are Sabellidae species. Among the species found, 26 are new to science, besides the occurrence of two genera of Terebellidae never before recorded in Brazilian waters, Neoleprea and Lanicola. In addition, Brazilian material previously identified as belonging to some species of Terebelliformia and Sabellidae considered cosmopolitan, such as Loimia grubei, L. medusa, Eupolymnia nebulosa, Pseudopotamilla reniformis, Parasabella microphthalma, Polycirrus plumosus and Amaeana trilobata, described herein as different taxa, new to science. (AU) | |
| FAPESP's process: | 10/16555-3 - Diversity of Terebellidae, Trichobranchidae and Sabellidae (Annelida, Polychaeta) along the Brazilian Coast, between the States of São Paulo and Paraíba |
| Grantee: | Orlemir Carrerette dos Santos |
| Support Opportunities: | Scholarships in Brazil - Doctorate |