Parasitismo, volume globular e bioquímica em peixes silvestres e de cultivo do Município de São Bento, Maranhão, Brasil

Abstract

The aim of this study was to obtain data on the fauna of ecto and endoparasites and clinical changes, assessed by cell volume and serum biochemistry in fish of São Bento, Maranhão. Sampling fish Hoplerythrinus unitaeniatus (Jeju), Hoplias malabaricus (Traíra) and Colossoma macropomum (Tambaqui) were conducted during the dry and rainy during the year 2012. A study was conducted of parasitism and parasite ecology of the species H. unitaeniatus and H. malabaricus. And another study on the clinical through the packed cell volume, serum biochemistry. After collection, held the biometrics, followed by macroscopic analysis of the fins, gills and body surface area to check ectoparasites after autopsies held for investigation of helminths in the cavity and internal organs. Was performed to collect blood through the gill vein with hypodermic syringes (3 mL) for analysis of cell volume, serum biochemistry. H. unitaeniatus showed a higher parasite richness in relation to H. malabaricus parasites were found in different groups as Anisakidae, Acantocephala, and Hirudinea Monogenea being Pseudoterranova sp. gender more prevalent. H. malabaricus were found only parasites family Anisakidae. H. unitaeniatus natural environment showed higher values of packed cell volume compared to cultivation, total protein correlated positively compared to the weight of the animals. The total protein and albumin Tambaqui Similar values collected in two seasons.