Community ecology of parasites in four species of Corydoras (Callichthyidae), ornamental fish endemic to the eastern Amazon (Brazil)

Abstract

How to cite: FeRReIRA MM AND PASSADOR RJ. 2019. Community ecology of parasites in four species of Corydoras (Callichthyidae), ornamental fish endemic to the eastern Amazon (Brazil). An Acad Bras Cienc 91: e20170926.

Distribution patterns of Procamallanus (Spirocamallanus) inopinatus (Nematoda: Camallanidae) and its interactions with freshwater fish in Brazil

“…Several studies on wild fish populations have emphasized the importance of the hosts' diet and trophic level in relation to the diversity and parameters of endohelminth parasite infections (Choudhury & Dick, 2000;Simková et al, 2001;Timi et al, 2011;Poulin & Leung, 2011;Gonçalves et al, 2016;Hoshino et al, 2016;Ferreira et al, 2019;Baia et al, 2018;Negreiros et al, 2019;Ferreira et al, 2019). Endohelminth larvae complete their life cycles when ingested by their definitive hosts and are therefore dependent on prey-predator interactions (Choudhury & Dick, 2000;Timi et al, 2011;Poulin & Leung, 2011;Bhuiyan et al, 2014;Gonçalves et al, 2016;Hoshino et al, 2016;Baia et al, 2018).…”

“…In Brazil, P. (S.) inopinatus has been reported infecting several fish species in the Paraná River system (Takemoto et al, 2009;Kohn et al, 2011) and Amazon River system (Gonçalves et al, 2016;Hoshino et al, 2016;Fujimoto et al, 2018;Ferreira et al, 2019), but only a few of these studies have addressed the interactions of the host-parasite system. Vicente et al (1985) listed 21 species of freshwater fish infected by P. (S.) inopinatus.…”

Parasitic fauna of <i>Hyphessobrycon takasei</i> and <i>Hyphessobrycon amapaensis</i> (Osteichthyes: Characidae), ornamental fish of two basins from Amapá state, Brazil

“…Therefore, there was a dominance of nematodes in H. takasei. For H. takasei, there was an aggregated dispersion of parasites, a common pattern in wild fish populations (Tavares-Dias, Oliveira, Gonçalves, & Silva, 2014;Oliveira, Gonçalves, Neves, Ferreira, & Tavares-Dias, 2017;Ferreira et al, 2019). In contrast, for H. amapaensis the parasite dispersion was random, a typical pattern of parasites with moderate or high pathogenicity, because these regulate the density of the host population (Moller 2006).…”

“…The ornamental fish trade is one of the most important economic activities for thousands of riverine communities from Amazon region (Aguinaga et al, 2015;Ferreira, Passador, & Tavares-Dias, 2019). In Amazon, most ornamental freshwater fish species are captured by the extractive fishery in rivers and streams, and then commercialized by exporters.…”

“…Therefore, knowledge about the parasites affecting ornamental fish is crucial to success in the ornamental fish trade. In addition, knowledge about epidemiology of parasites are important for the successful of implementation of treatment and prophylaxis programs, besides control and prevention strategies of diseases in ornamental fish (Santos et al, 2017;Hoshino et al, 2018;Ferreira et al, 2019). In addition, parasitic diseases reduce the quality of ornamental fish and affects the economic activity of exporting enterprises, leading also to credibility loss.…”