The potential of Hoplias malabaricus (Characiformes: Erythrinidae), a Neotropical carnivore, for aquaculture
| Autor: | Renata Guimarães Moreira, Eric M. Hallerman, Ivan Bezerra Allaman, Aderbal Cavalcante-Neto, Alexandre Wagner Silva Hilsdorf, Marcos Daniel Renó Faria, Aline Dal’Olio Gomes |
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| Rok vydání: | 2019 |
| Předmět: |
lcsh:SH1-691
Morphometrics 0303 health sciences Ecology biology business.industry Fish farming Zoology 04 agricultural and veterinary sciences Juvenile fish Aquatic Science Characiformes biology.organism_classification Erythrinidae lcsh:Aquaculture. Fisheries. Angling SUSTENTABILIDADE Hoplias malabaricus 03 medical and health sciences Stocking Aquaculture 040102 fisheries 0401 agriculture forestry and fisheries business Ecology Evolution Behavior and Systematics 030304 developmental biology |
| Zdroj: | Aquaculture and Fisheries, Vol 4, Iss 3, Pp 89-97 (2019) Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 2468-550X |
| Popis: | We describe key production-related traits of trahira (Hoplias malabaricus), an aquaculture candidate species, in a semi-intensive fish farming system. We quantified growth from hatch through grow-out at two stocking densities and evaluated fillet protein, lipids and fatty-acid content. We made 2430 observations of growth and morphometrics on 270 juvenile fish allocated to four fish ponds, two at 5 fish/m2 (90 animals) and two at 10 fish/m2 (180 animals) through 11 months. The fish reached an average length of 27.5 cm (±0.38) and 27.0 cm (±0.24), and weight of 263.0 g (±10.54) and 246.7 g (±6.89), respectively, at the low and high densities. There was no significant difference in weight (P > 0.05) between the densities for any of the parameters assessed, and hence the same growth curve applied to both densities (A = 292.9; B = 28.1; and K = 0.65). Standard length, however, differed significantly (P |
| Databáze: | OpenAIRE |
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