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Euglenophyte bloom is a common problem in most of the aquaculture ponds in Bangladesh. In the present study we conducted an experiment to control euglenophyte bloom for achieving better fish production using duckweed (Lemna minor) and lime. The experiment was carried out using four treatments, i.e., ponds were supplied with duckweed (T1), lime treatment (T2), both duckweed and lime (T3) and without supply of duckweed and lime (T4). Rohu, catla, mrigal, silver carp and silver barb were stocked and their gut contents were analyzed monthly. The ranges of water quality parameters were analyzed within the productive limit during the experimental period. The mean abundance of euglenophyte was significantly highest in T4 (17.62 ± 1.97 x 10^4 cells/L), followed by T2 (2.96 ± 0.20 x 10^4 cells/L), T1 (1.94 ± 0.35 x 10^4 cells/L) and T3 (1.53 ± 0.42 x 10^4 cells/L). Gut content analysis revealed that considerable amounts of euglenophyte were consumed by silver carp and silver barb, but not preferred by rohu, catla and mrigal. The gross yields of fish were 2133.37, 1967.76, 2816.52 and 1725.62 kg/ha/5 months in T1, T2, T3 and T4 respectively. The highest fish production in T3 and lowest fish production in T4 indicated the use of duckweed and lime is economically sustainable for controlling euglenophytes bloom, maintaining water quality and getting higher fish production.

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Aquatic Commons  

Autor(es)

Rahman, M.S. -  Shahjahan, Md. -  Mahfuzul Haque, Md. -  Khan, S. - 

Id.: 71220260

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Tipo:  application/pdf - 

Palabras claveAquaculture - 

Tipo de recurso: Article  -  PeerReviewed  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

Formatos:  application/pdf - 

Requerimientos técnicos:  Browser: Any - 

Relación: [References] http://aquaticcommons.org/22519/

Fecha de contribución: 17-abr-2018

Contacto:

Localización:
* Rahman, M.S. and Shahjahan, Md. and Mahfuzul Haque, Md. and Khan, S. (2012) Control of euglenophyte bloom and fish production enhancement using duckweed and lime. Iranian Journal of Fisheries Sciences, 11(2), pp. 358-371.

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