Influence of stocking density on water quality and growth performance in production of juvenile pirarucu, Arapaima gigas, in irrigation canals

Oliveira, Elenise Gonçalves de; Santos, F. J. de S.; Oliveira, Valdemir Queiroz de; Mesquista, Pedro Eymard Campos; Moraes, Manuella Gazzineo de; Sousa, Rommel Rocha de; Gomes, Igor Gabriel Rodrigues Ferreira; Albuquerque, Leonardo Freitas Galvão de; Rocha, Ítalo Régis Castelo Branco; Costa, Francisco Hiran Farias

doi:10.34117/bjdv6n2-255

Cited by 1 publication

(2 citation statements)

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“…Similarly, the fish farms supplied with river water were the only ones that presented the occurrence of the acanthocephalan Neoechinorhynchus sp. The physicochemical parameters of the water of the cultivation facilities, analyzed at the time of collection of the juveniles, were adequate for the rearing of A. gigas (Oliveira et al, 2020;Pereira-Filho et al, 2020).…”

Section: Parasitementioning

confidence: 99%

“…One species of native fish with great potential for aquaculture is Arapaima gigas Schinz, 1822, since it has as remarkable biological aspects such as its rapid growth and air breathing. It also has characteristics that are conducive to breeding such as the possibility of carrying out the feeding transition from live food to commercial feed and the ability to withstand high storage densities in nurseries and during growout phase (Oliveira et al, 2020;Pereira-Filho et al, 2020;Santana et al, 2020;Lima et al, 2021). The state of Amazonas has a number of large-scale fish producing centers.…”

Section: Introductionmentioning

confidence: 99%

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Parasitism of Arapaima gigas (Schinz, 1822) in fish farms of the state of Amazonas, Brazil

Gama

Porto

Anjos

et al. 2022

Rev. Bras. Parasitol. Vet.

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The objective of this study was to investigate the parasites occurrences and to determine the rates of infestation/parasitic infection in juvenile Arapaima gigas from seven fish farms in the state of Amazonas, relating to the characteristics of these fish farms. Of the 70 A. gigas evaluated, 43 were infested/infected, with a total of 133 parasites collected. Three fish farms (2, 4, 6) showed the highest levels of prevalence of parasites (100%, 70%, 70%), mean intensity (4.1±2.6, 8.1±9.2, and 2.1±1.3), and mean abundance (4.1±2.6, 5.7±8.1, and 1.5±1.5), respectively. Prevalence ranged from 30% to 100%, mean intensity from 1.0 to 8.1 and mean abundance from 0.3 to 5.7. Monogenea, Digenea, Nematoda (Hysterothylacium sp. and Spirocamallanus sp.) and Acanthocephala (Neoechinorhynchus sp. and Polyacanthorhynchus sp.) were identified. The parasites Hysterothylacium sp. and Neoechinorhynchus sp. were the most prevalent parasites with 31.43% and 15.71%, respectively. The fish presented negative allometry in growth and constant condition factor. Measures to prevent and control the parasitic diseases diagnosed are discussed as well prophylactic practices that contribute to the biosecurity of the farms.

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Section: Parasitementioning

confidence: 99%