| Revista: | Boletim do Instituto de Pesca |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000351641 |
| ISSN: | 0046-9939 |
| Autores: | Santana, Werlanne Mendes de1 Leal, Albino1 Santana, Werlayne Mendes de1 Lucio, Maria Zita1 Castro, Patricia Fernandes de2 Correia, Eudes de Souza1 |
| Instituciones: | 1Universidade Federal Rural de Pernambuco, Recursos Pesqueiros e Aqüicultura, Recife, Pernambuco. Brasil 2Empresa Brasileira de Pesquisa Agropecuaria, Meio-Norte, Teresina, Piaui. Brasil |
| Año: | 2008 |
| Volumen: | 34 |
| Número: | 1 |
| Paginación: | 21-27 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | This work aimed to evaluate the natural food induction in Farfantepenaeus subtilis culture, through different fertilization regimes. Twelve 500 L fiber glass tanks were stocked with 30 shrimps.m-2 (2.57±1.27 g). Four experimental treatments were adopted in triplicate, using the three organic fertilizers wheat bran – FT (28 g.m-²), rice bran – FA (28 g.m-²) and molasses – ML (40 mL.m-²), and one control – CT, with inorganic fertilizers (2 mg.L-1 nitrogen and 0.2 mg.L-1 phosphorus). Artificial feed was offered in feeding trays three times a day, and plankton, benthos and water samples were collected fortnightly. Results showed no significant difference (P≥0.05) in survival among the organic fertilizers treatments, but showed statistical difference (P<0.05) among FT and CT. About the natural food organisms, there was no significant difference (P≥0.05) among planktonic groups. In the phytoplankton, there was predominance of Cyanophyta, while in the zooplankton the major representants were rotifers. Among the benthos, the phytobenthos also was represented by Cyanophyta, but there was statistical difference (P<0.05) only in Euglena group, where FA was different (P<0.05) from FT and CT. In the zoobenthos, it was registered the predominance of rotifers and nematodes, showing significant difference (P<0.05) in rotifers group in ML, when compared with CT and FT. Nematodes differed (P<0.05) in FA when related to FT and ML, which also predominated in mesobenthos, with no significant difference (P≥0.05) among the treatments. It was concluded that in the experimental conditions adopted both organic and inorganic fertilizers effects were similar related to natural food induction |
| Disciplinas: | Biología, Agrociencias |
| Palabras clave: | Biología acuática, Crustáceos, Fertilización, Acuacultura, Farfantepenaeus subtilis, Fertilizantes orgánicos, Fertilizantes inorgánicos, Alimentos naturales, Plancton, Bentos |
| Keyword: | Biology, Agricultural sciences, Aquatic biology, Crustaceans, Fertilization, Aquaculture, Farfantepenaeus subtilis, Organic fertilizers, Inorganic fertilizers, Natural foods, Plankton, Benthos |
| Texto completo: | Texto completo (Ver PDF) |
