title: Hematological changes in Eleginops maclovinus during an experimental Caligus rogercresseyi infestation.
abstract: Eleginops maclovinus has been an important fishery resource in Chile since 1957. Caligus rogercresseyi is one of the most prevalent ectoparasite species found on E. maclovinus. Hematocrit, hemoglobin level, red blood cell count (RBC), white blood cell count (WBC), mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) and differential white blood cell count were determined before and after an experimental infestation with C. rogercresseyi. We found significant differences in the hemoglobin level, WBC, MCV, MCH, MCHC, hematocrit level and RBC between infested and uninfested fish. Furthermore correlations between number of C. rogercresseyi with hematocrit, MCHC, neutrophil, eosinophil and lymphocyte counts were found. Hematological reference ranges of E. maclovinus in captivity conditions were also established.
authors.affiliation: Universidad Católica de Temuco, Escuela de Medicina Veterinaria, Temuco, Chile.
authors.forename: Patricio
authors.initials: P
authors.lastname: Peña-Rehbein
authors.forename: Karin
authors.initials: K
authors.lastname: Ruiz
authors.forename: Alexander
authors.initials: A
authors.lastname: Ortloff
authors.forename: María Isabel
authors.initials: MI
authors.lastname: Pizarro
authors.forename: Carolina
authors.initials: C
authors.lastname: Navarrete
mesh_terms: D000818:Animals; D033342:Copepoda / Q000502:physiology*; D006403:Hematologic Tests; D010473:Perciformes / Q000097:blood* / Q000469:parasitology*