| Texto completo | |
| Autor(es): |
Narciso, Rodrigo Bravin
[1]
;
Brandao, Heleno
[2]
;
Perbiche-Neves, Gilmar
[3]
;
da Silva, Reinaldo Jose
[1]
Número total de Autores: 4
|
| Afiliação do(s) autor(es): | [1] Sao Paulo State Univ, Inst Biosci, UNESP, Botucatu, SP - Brazil
[2] Univ Tecnol Fed Parana UTFPR, Santa Helena - Brazil
[3] Univ Fed Sao Carlos UFSCAR, Buri - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ACTA PARASITOLOGICA; v. 64, n. 4, p. 850-865, DEC 2019. |
| Citações Web of Science: | 0 |
| Resumo | |
Purpose To describe a new genus and a new species of an ectoparasitic ergasilid (Copepoda, Ergasilidae) parasite of the red-tailed lambari, Astyanax fasciatus, from Jurumirim Reservoir (Upper Paranapanema River), Sao Paulo State, Brazil. Methods The host fish were collected using multi-panel gill nets. The gill of each fish was washed and examined in a stereo microscope for copepods. The copepods found were stored in 70% ethanol, cleared in lactic acid, and mounted in Hoyer's medium. Some specimens were dissected in glycerol medium and then each dissected part was mounted on individual slides. Results A new genus and a new species of Ergasilidae were described herein. Duoergasilus basilongus n. gen., n. sp. differs from all other ergasilids in having the second and third pair of biramous swimming legs (P2 and P3) each with a 2-segmented endopod, and by its unique maxillary basis, resembling a whip. Conclusions The new copepod is the first `four-legged' ergasilid with all swimming legs having a 2-segmented endopod. Duoergasilus basilongus n. sp. represents the first record of a parasitic copepod on A. fasciatus in Jurumirim Reservoir, as well as its represents the first description to species level of an ergasilid infecting an Astyanax species in Brazil. A key to the 28 accepted genera of Ergasilidae is provided. (AU) | |
| Processo FAPESP: | 16/50377-1 - Taxonomia morfológica e molecular de helmintos parasitas de animais ectotérmicos no Brasil |
| Beneficiário: | Reinaldo José da Silva |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |