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

Author:

Campos CM.1,Takemoto RM.2,Fonseca VE.2,Moraes FR.3

Affiliation:

1. Universidade Estadual de Mato Grosso do Sul, Brazil

2. Universidade Estadual de Maringá, Brazil

3. Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil

Abstract

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.

Publisher

FapUNIFESP (SciELO)

Subject

General Agricultural and Biological Sciences

Reference35 articles.

1. Prevalência de parasitos do filo Myxozoa em pacu (Piaractus mesopotamicus) (Osteichthyes: Characidae) em rios do Pantanal Mato-grossense, Brasil;ADRIANO EA.;Boletim Técnico do CEPTA,2002

2. Histology, ultrastructure and prevalence of Henneguya piaractus (Myxosporea) infecting the gills of Piaractus mesopotamicus (Characidae) cultivated in Brazil;ADRIANO EA.;Diseases of aquatic organisms,2005

3. CIH Keys to the nematode parasites of vertebrates;ANDERSON RC.,1974

4. Intestinal helminthes of lesser scaup ducks: patterns of association;BUSH A.;Canadian Journal Zoology,1986

5. Ecological versus phylogenetic determinants of helminth parasite community richness;BUSH A.;Evolutionary Ecology,1990

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3