Parasites in Leporinus macrocephalus (Anostomidae) of four fish farms from the western Amazon (Brazil)
| Autor: | Ligia R. Neves, Luciano P. Negreiros, Marcos Tavares-Dias |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Urocleidoides paradoxus Fish farming Science prevalence 010607 zoology Fisheries Zoology Biology 01 natural sciences Anostomidae Paradoxus 030308 mycology & parasitology 03 medical and health sciences Fish Diseases Parasite hosting Animals Parasites Dolops discoidalis Ergasilus sp Ergasilus 0303 health sciences Multidisciplinary Amazon rainforest biology.organism_classification freshwater fish Freshwater fish Characiformes Leporinus macrocephalus Brazil |
| Zdroj: | Anais da Academia Brasileira de Ciências, Vol 93, Iss 3 (2021) Anais da Academia Brasileira de Ciências v.93 n.3 2021 Anais da Academia Brasileira de Ciências Academia Brasileira de Ciências (ABC) instacron:ABC Anais da Academia Brasileira de Ciências, Volume: 93, Issue: 3, Article number: e20190988, Published: 16 JUN 2021 |
| ISSN: | 1678-2690 |
| Popis: | This study evaluated the presence of metazoan parasites in Leporinus macrocephalus from four fish farms from the western Amazon (Brazil). In 160 fish examined, prevalence was 61.9%, and parasites found were: Urocleidoides paradoxus, Urocleidoides eremitus, Tereancistrum parvus, Jainus leporini, Procamallanus (Spirocamallanus) inopinatus, Rhabdochona (Rhabdochona) acuminata, Dolops discoidalis and Ergasilus sp., but U. paradoxus was the dominant parasite. Jainus leporini and Ergasilus sp. occurred only in L. macrocephalus from one fish farm, while U. paradoxus, U. eremitus and T. parvus were found in fish from three fish farms. Dolops discoidalis, P. (S.) inopinatus and R. (R.) acuminata occurred only in L. macrocephalus from two fish farms. Higher infection levels were caused by U. paradoxus, U. eremitus and P. (S.) inopinatus, which had an aggregated dispersion. There was positive correlation between abundance of parasites and the length of hosts. No difference in the condition factor of parasitized and non-parasitized fish were found. Such differences between fish farms were attributed to differences in management and quality of cultivation environments, and data indicate the need to adopt prophylactic measures in the fish farms to prevent diseases in the future. This was the first report of D. discoidalis and Ergasilus sp. for L. macrocephalus. |
| Databáze: | OpenAIRE |
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