Ergasilus yumaricussp. n. (COPEPODA: ERGASILIDAE) DAS BRÂNQUIAS DE Pygocentrus nattereri (KNER, 1860), Serrasalmus rhombeus (LINNAEUS, 1819) E Pristobrycon eigenmanni (NORMAN, 1929) (CHARACIFORMES : SERRASALMIDAE) DA AMAZÔNIA BRASILEIRA

of the metazoan fauna of Pygocentrus nattereri (Kner, 1858) in Piranha Lake, (Amazonas, Brazil), and evaluation of its potential as an indicator of environmental health. Biota Neotrop. 11(1): http://www.biotaneotropica.org.br/v11n1/en/ abstract?article+bn03111012011. Abstract:The metazoan parasitic fauna of Pygocentrus nattereri collected in different phases of hydrologic cycle of Piranha lake was studied during the year of 2007. The study area is located in gas pipeline Coari-Manaus construction zone, near the municipality of Manacapuru-Am. The relationship between condition factor and parasite occurrence and the viability of use the parasitic fauna as an environmental bio-indicator were verified. The following Monogenoidea were collected: Amphithecium microphalum, Amphitecium brachycirrum, Amphitecium calycinum, Amphithecium catalaoensis, Amphithecium junki, Pithanothecium amazonensis e Rhinoxenus piranhus, as well as the nematode Procamallanus inopinatus, the copepod Miracetyma sp. and the isopod Anphira branchialis. There was not significant correlation between the parasite occurrence and the condition factor. There were significant variances in the parasitic index according to the different periods of hydrologic cycle and P. nattereri has achieved the conditions described in the literature to be select a fish-host and his parasite fauna as biomonitor.

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AS ESPÉCIES DE COPEPODA (CRUSTACEA: ERGASILIDAE) PARASITAS DOS FILAMENTOS BRANQUIAIS E NARINAS DE Serrasalmus altispinis (MERCKX, JÉGU E SANTOS, 2000) (CHARACIFORMES – SERRASALMIDAE) EM LAGOS DE VÁRZEA DO BRASIL

Murrieta-Morey

Malta

2016

Folia Amaz

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RESUMOQuatro espécies de Copepoda foram coletadas em Serrasalmus altispinis provenientes de seis lagos de várzea no estado do Amazonas. Amplexibranchius bryconis e Ergasiilus jaraquensis nas brânquias, Gamidactylus jaraquensis e Rhinergasilus piranhus nas narinas. S. altispinis é um novo hospedeiro para estes parasitas. A. bryconis e E. jaraquensis são registrados pela primeira vez parasitando a um peixe da família Serrasalmidae. A. bryconis foi a espécie dominante nas brânquias e a que apresentou os maiores índices parasitários. Nas narinas G. jaraquensis foi o parasita dominante. Houve correlação negativa significativa (p < 0,05) entre o comprimento de S. altispinis e a abundância de copépodes nas brânquias. Nas narinas houve correlação positiva não significativa entre o comprimento dos hospedeiros e a abundância de copépodes. Foi ampliada a distribuição destes parasitas em um novo hospedeiro. PALABRAS CLAVE: parasitos de peixes; Amplexibranchius bryconis; Ergasiilus jaraquensis; Gamidactylus jaraquensis; Rhinergasilus piranhus. THE SPECIES OF COPEPODA (CRUSTACEA: ERGASILIDAE) PARASITES OF GILL FILAMENTS AND NOSTRILS OF Serrasalmus altispinis (MERCKX, JÉGU E SANTOS, 2000) (CHARACIFORMES: SERRASALMIDAE) OF CENTRAL AMAZON FLOODPLAIN LAKES, BRAZIL ABSTRACTFour species of Copepoda were collected in Serrasalmus altispinis from six floodplain lakes, Amazonas State: Amplexibranchius bryconis and Ergasilus jaraquensis were collected in the gills and Gamidactylus jaraquensis and Rhinergasilus piranhus in the nostrils. S. altispinis is a new host for these parasites. A. bryconis e E. jaraquensis are recorded for the first time parasitazing a fish from the family Serrasalmidae. A. bryconis was the dominant species in the gills and with higher rates of parasites. In the nostrils G. jaraquensis was the dominant parasite. There was a significant (p> 0.05) negative correlation between the length of S. altispinis and abundance of parasites in the gills. In the nostrils there was a non significant positive correlation between the lengh of the hosts and the abundance of parasites. There was expanded the distribution of these parasites in a new host.

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Ergasilus yumaricussp. n. (COPEPODA: ERGASILIDAE) DAS BRÂNQUIAS DE Pygocentrus nattereri (KNER, 1860), Serrasalmus rhombeus (LINNAEUS, 1819) E Pristobrycon eigenmanni (NORMAN, 1929) (CHARACIFORMES : SERRASALMIDAE) DA AMAZÔNIA BRASILEIRA

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Checklist of Copepoda associated with fishes from Brazil

Checklist of Copepoda associated with fishes from Brazil

Sazonalidade da fauna de metazoários de Pygocentrus nattereri (Kner, 1858) no lago Piranha (Amazonas, Brasil) e a avaliação de seu potencial como indicadora da saúde do ambiente

AS ESPÉCIES DE COPEPODA (CRUSTACEA: ERGASILIDAE) PARASITAS DOS FILAMENTOS BRANQUIAIS E NARINAS DE Serrasalmus altispinis (MERCKX, JÉGU E SANTOS, 2000) (CHARACIFORMES – SERRASALMIDAE) EM LAGOS DE VÁRZEA DO BRASIL

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