%0 Journal Article
%T Aspectos quantitativos das infrapopula  es de metazo¨¢rios parasitos de Micropogonias furnieri (Osteichthyes: Sciaenidae) do litoral do estado do Rio de Janeiro, Brasil QUANTITATIVE ASPECTS OF METAZOAN PARASITE INFRAPOPULATIONS OF Micropogonias furnieri (OSTEICHTHYES: SCIAENIDAE) FROM THE COASTAL ZONE OF THE STATE OF RIO DE JANEIRO, BRAZIL
%A DIMITRI RAMOS ALVES
%A JOSE LUIS LUQUE
%J Parasitolog¨ªa al d¨ªa
%D 2001
%I Scientific Electronic Library Online
%X Entre setembro de 1997 e agosto de 1998, foram examinados 40 esp¨¦cimes de Micropogonias furnieri (Osteichthyes: Sciaenidae) do litoral do Estado do Rio de Janeiro, Brasil para estudo dos aspectos quantitativos das infrapopula  es de metazo¨¢rios parasitos. Todos os peixes estavam parasitados com pelo menos uma esp¨¦cie de metazo¨¢rio. Um total de 760 parasitos foram coletados, com m¨¦dia de 19 por peixe. Dezessete esp¨¦cies de metazo¨¢rios foram encontradas. O nemat¨®ide Dichelyne elongatus foi o parasito mais prevalente e abundante. Todas as esp¨¦cies de parasitos demons-traram um tipico padr o de distribui  o. Clavellotis dilatata apresentou correla  o positiva entre o comprimento total e a preval¨ºncia, e Pachycreadium gastrocotylum demonstrou correla  o negativa. Pterinotrematoide mexicanum, Macrovalvitrema sinaloense, D. elongatus e C. dilatata apresenta-ram correla  o positiva entre o comprimento total do hospedeiro e abundancia enquanto P. gastrocotylum apresentou correla  o negativa. O sexo do hospedeiro n o influenciou a preval¨ºncia e abundancia dos metazo¨¢rios Between September of 1997 and August of 1998, 40 specimens of Micropogonias furnieri were captured of the coastal zone of the State of Rio de Janeiro, Brazil (aprox. 21-23¡ã S, 41-45¡ã W), and examined to study quantitative aspects of their infrapopulations of metazoan parasites. All fishes were parasitized with at least one species of metazoan. A total of 760 parasites were collected, with average of 19/fish. Seventeen species of metazoan parasites were found. The nematode Dichelyne elongatus was the most prevalent and abundant parasite of M. furnieri. All parasite species of M. furnieri showed a typical pattern of distribution. Clavellotis dilatata had a positive correlation between the total length and parasite prevalence, and Pachycreadium gastrocotylum showed negative correlation. Pterinotrema-toides mexicanum, Macrovalvitrema sinaloense, Dichelyne elongatus and C. dilatata showed positive correlation between the total length and the parasite abundance while P. gastrocotylum showed negative correlation. The sex of the host not influenced the prevalence and abundance of the metazoan parasites
%K Parasite infrapopulations
%K Metazoan parasites
%K Micropogonias furnieri
%K Sciaenidae
%K Brazil
%U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-07202001000100006