Pseudoterranova sp. and Contracaecum sp. (Nematoda: Anisakidae) in fish of commercial importance in gaira river, sierra nevada de Santa Marta, Colombian caribbean

• Autores: Blanco-Cervantes, Carlos, Blanco-Cervantes, German
• Formato: artículo
• Fecha de Publicación: 2023
• Institución: Universidad Nacional Federico Villarreal
• Repositorio: Revistas - Universidad Nacional Federico Villarreal
• Lenguaje: español
• OAI Identifier: oai:ojs2.revistas.unfv.edu.pe:article/1690
• Enlace del recurso: https://revistas.unfv.edu.pe/NH/article/view/1690
• Nivel de acceso: acceso abierto
• Materia: anisakidae; parasites; nematodes; zoonoses; Santa Marta; Anisakidae; nematodos; parásitos; zoonosis

During the high-water period, a total of 23 fish acquired from artisanal fishermen at the mouth of the Gaira River in the Sierra Nevada de Santa Marta (SNSM) were processed with the objective of analyzing the parasitic helminthic fauna and its capacity to produce zoonoses. The hosts had their abdominal cavity, the surface of the viscera and the swim bladder checked for helminths. The identification of these was based on the description of the morphological characteristics observed through optical microscopy. To characterize the infection of each parasite species, ecological parameters such as prevalence (P), mean infection intensity (MI) and parasitic infestation rate were calculated. To determine if there was an association between total length and weight, and between weight and parasitic infestation rate, a Friedman ANOVA was applied after a Tukey ANOVA. The processed fish showed average values (± standard deviation) of total length of 19.6 ± 30 cm, and weight of 50.33 ± 22.50 g, of which 21 were parasitized by anisakid nematodes, for a percentage of infection of 91.3%. The morphological characteristics allowed the identification of the genera Contracaecum sp and Pseudoterranova sp. The parasite prevalence for analyzed individuals was 94.83%, all nematodes were found in intestines, mesentery, spine and sometimes attached to the testicles in males. The parasite intensity was 36.78±57.70 parasites/fish. The infestation rate was mild in 85.19%, moderate in 7.4% and severe in 3.7%. The Friedman and Tukey ANOVA showed significant statistical differences (p<0.05) between LT and weight, as well as between weight and average intensity.