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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

A new eyeless species of Neanthes (Annelida: Nereididae) associated with a whale-fall community from the deep Southwest Atlantic Ocean

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Autor(es):
Shimabukuro, Mauricio [1] ; Santos, Cinthya S. G. [2] ; Alfaro-Lucas, Joan M. [1] ; Fujiwara, Yoshihiro [3] ; Sumida, Paulo Y. G. [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Sao Paulo, Inst Oceanog, BR-05508120 Sao Paulo, SP - Brazil
[2] Univ Fed Fluminense, Inst Biol, Dept Biol Marinha, Outeiro Sao Joao Batista S-N, BR-24020141 Niteroi, RJ - Brazil
[3] Japan Agcy Marine Earth Sci & Technol, 2-25 Natsushima Cho, Yokosuka, Kanagawa 2370061 - Japan
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY; v. 146, n. SI, p. 27-34, DEC 2017.
Citações Web of Science: 3
Resumo

A new whale-fall community was discovered in the abyssal SW Atlantic Ocean (4204 m depth) during the Iata-piuna expedition. Several specimens of a new nereidid were found living in sediments around and immediately below whalebones. This new species, Neanthes shinkai, is described here. The most interesting feature of the new species is the absence of eyes on the prostomium. Although three other deep-sea Neanthes species are also eyeless, the arrangement of paragnaths on the pharynx, the shape of parapodia and the type of neuropodial falcigers chaetae can distinguish N. shinkai n. sp. from these other species. In addition, interspecific comparisons using COI fragment shown a high genetic divergence (23.6-24.9% K2P) from other Neanthes species. Some nereidids have been already known to live in association with deep-sea organic falls and other reducing environments, however this is the first record and description of a Neanthes species in a deep-sea whale-fall community. Observed behavioral and carbon and nitrogen isotopes suggest that N. shinkai n. sp. is an omnivore relying mainly on whale carcass with slightly contribution of chemosynthetic bacterial mats, suggesting that it is an inhabitant of whale-falls from SW Atlantic. (AU)

Processo FAPESP: 11/50185-1 - Biodiversidade e conectividade de comunidades bênticas em substratos orgânicos (ossos de baleia e parcelas de madeira) no Atlântico Sudoeste Profundo - BioSuOr
Beneficiário:Paulo Yukio Gomes Sumida
Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Temático