Ecology of the parasitic endohelminth community of Piaractus mesopotamicus (Holmberg, 1887) (Characiformes) from Aquidauana and Miranda Rivers, Pantanal, state of Mato Grosso do Sul, Brazil

Autor:	Flávio Ruas de Moraes, Cm. Campos, Ve. Fonseca, R. M. Takemoto
Přispěvatelé:	Universidade Estadual de Mato Grosso do Sul (UEMS), Universidade Estadual de Maringá (UEM), Universidade Estadual Paulista (Unesp)
Rok vydání:	2008
Předmět:	Male Zoology Characiformes Host-Parasite Interactions Piaractus mesopotamicus Rivers ecologia Helminths Dominance (ecology) Animals Rondonia rondoni helminth helmintos peixe fish biology Ecology Echinorhynchus Fishes Pantanal Biodiversity biology.organism_classification Significant positive correlation Spectatus spectatus Female ecology General Agricultural and Biological Sciences Brazil
Zdroj:	Brazilian Journal of Biology v.69 n.1 2009 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE SciELO Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP
ISSN:	1678-4375 1519-6984
Popis:	Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:42:26Z No. of bitstreams: 1 S1519-69842009000100010.pdf: 143655 bytes, checksum: 23f25c7a2a0e320c7bba63cfdbc3e042 (MD5) Made available in DSpace on 2013-08-22T18:42:26Z (GMT). No. of bitstreams: 1 S1519-69842009000100010.pdf: 143655 bytes, checksum: 23f25c7a2a0e320c7bba63cfdbc3e042 (MD5) Previous issue date: 2009-02-01 Made available in DSpace on 2013-09-30T19:29:42Z (GMT). No. of bitstreams: 2 S1519-69842009000100010.pdf: 143655 bytes, checksum: 23f25c7a2a0e320c7bba63cfdbc3e042 (MD5) S1519-69842009000100010.pdf.txt: 29794 bytes, checksum: 1616ea077a2ba1cd1e02bc867deb508e (MD5) Previous issue date: 2009-02-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:08:09Z No. of bitstreams: 2 S1519-69842009000100010.pdf: 143655 bytes, checksum: 23f25c7a2a0e320c7bba63cfdbc3e042 (MD5) S1519-69842009000100010.pdf.txt: 29794 bytes, checksum: 1616ea077a2ba1cd1e02bc867deb508e (MD5) Made available in DSpace on 2014-05-20T15:08:09Z (GMT). No. of bitstreams: 2 S1519-69842009000100010.pdf: 143655 bytes, checksum: 23f25c7a2a0e320c7bba63cfdbc3e042 (MD5) S1519-69842009000100010.pdf.txt: 29794 bytes, checksum: 1616ea077a2ba1cd1e02bc867deb508e (MD5) Previous issue date: 2009-02-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Neste trabalho, foram descritas a estrutura e a diversidade da comunidade endo-helmíntica de 73 exemplares de Piaractus mesopotamicus e suas interações com os hospedeiros, capturados nos rios Aquidauana e Miranda, MS. Foram encontrados 608.788 espécimes de helmintos, representados por cinco espécies: Dadaytrema oxycephala, Chabaudinema americanum, Spectatus spectatus, Rondonia rondoni e Echinorhynchus jucundum. O digenético D. oxycephala foi a espécie mais prevalente, com 91,78%, seguido do nematoda R. rondoni com 73,97%. O índice de Simpson indicou dominância entre as infracomunidades de endo-helmintos (C = 0,396), sendo D. oxycephala a espécie dominante. Dos hospedeiros amostrados, 54 continham entre duas e três espécies de endo-helmintos. Os pares R. rondoni/D. oxycephala e S. spectatus/D. oxycephala apresentaram correlações positivas significativas entre as abundâncias. Correlação positiva significativa foi observada entre comprimento total e abundância parasitária para S. spectatus (rs = - 0,2467 e p = 0,0353). A abundância de R. rondoni foi diferente estatisticamente entre o período 1/2003 e 2/2003 (p = 0,0356) e o período 1/2003 e 4/2004 (p = 0,0009). A prevalência de E. jucundum foi maior significativamente nas fêmeas. In this study the structure and diversity of the endohelminth community, as well as its interactions with 73 specimens of Piaractus mesopotamicus are described. The fish were caught in Aquidauana and Miranda rivers, both located in the Pantantal region, in the state of Mato Grosso do Sul. A total of 608,788 specimens of helminthes were found, representing five species: Dadaytrema oxycephala, Chabaudinema americanum, Spectatus spectatus, Rondonia rondoni and Echinorhynchus jucundum. D. oxycephala was more prevalent (91.78%) followed by R. rondoni (73.97%). Simpson's index indicated dominance in the endohelminth infracommunities (C = 0.396) and D. oxycephala was considered central species. A total of 54 hosts had between 2 and 3 species of helminthes. The pairs of the species R. rondoni/D. oxycephala and S. spectatus/D. oxycephala showed significant positive correlation between abundances. There was a significant positive correlation between total length and abundance of S. spectatus (rs = -0.2467 and p = 0.0353). Abundance of R. rondoni between the periods of 1/2003 and 2/2003 (p = 0.0356) and 1/2003 and 4/2004 (p = 0.0009) was significantly different. There was significant prevalence of E. jucundum in the female hosts. Universidade Estadual de Mato Grosso do Sul (UEMS) Universidade Estadual de Maringá (UEM) Universidade Estadual Paulista Júlio de Mesquita Filho Centro de Aqüicultura Universidade Estadual Paulista Júlio de Mesquita Filho Centro de Aqüicultura
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca1fdb3d4d4004351bccbdd51af5769c https://pubmed.ncbi.nlm.nih.gov/19347149 Zobrazit plný text záznamu