作者: Eduardo Pahor-Filho , Kleber Campos Miranda-Filho , Joaber Pereira Júnior
DOI: 10.1016/J.AQUACULTURE.2012.03.032
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摘要: Abstract Few studies have been performed with parasites of marine and estuarine fish in southern Brazil. In the present study, unpublished results show ways parasitism juvenile mullet by parasites. The toxicity formaldehyde effectiveness this chemotherapy controlling reared Mugil liza were also studied. Juvenile mullets (1 ± 0.26 g; 4.1 ± 0.4 cm) exposed to different concentrations 37% formaldehyde: control group five which tested: T1 (13.5), T2 (21.6), T3 (40.5), T4 (81) T5 (135) mg L − 1 8 per repetition triplicate. To verify drug parasitic control, 1 h prophylactic bath a concentrations: (67.5), (135), (270), (405) (540) , Ligophorus cf. uruguayensis (Monogenoidea: Ancyrocephalidae) Solostamenides platyorchis Microcotylidae) identified gills. Digenea Nematoda observed intestines. This is first occurrence S. During test, LC 50 -96 h was estimated at 20.77 mg L formaldehyde. bath, all eliminated between 135 540 mg L . High survival rate treatments. Values prevalence intensity infestation study showed potential damage caused Monogenoidea mullet. Formaldehyde baths 135 mg L are recommended safe limits for use presented. Besides, endoparasites tolerant exposure.