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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
10/12/1998 |
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Data da última atualização: |
22/04/2022 |
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Autoria: |
QUEIROZ, J. F. de; BOYD, C. E.; GROSS, A. |
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Afiliação: |
JULIO FERRAZ DE QUEIROZ, CNPMA; CLAUDE E BOYD, Auburn University; AMIT GROSS, Auburn University. |
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Título: |
Evaluation of a bio-organic catalyst in channel catfish, ictalurus punctatus, ponds. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Journal of Applied Aquaculture, v.8, n.2, p.49-61, 1998. |
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Idioma: |
Inglês |
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Conteúdo: |
A bio-organic catalyst was tested in ponds used to grow channel catfish , Ictalurus punctatus, at Auburn, Alabama, for its effect on water quality, soil organic carbon, and channel catfish production. Although there were no significant differences (P>0.1), ponds treated with the bio-organic catalyst tended to have higher concentrations of dissolved oxygen than control ponds during summer months even though all ponds were aerated mechanically. Data on water quality and soil organic carbon suggested that the bio-organic catalyst caused a slight but statistically insignificant inhibition of phytoplankton productivity, which in turn lessened the nighttime oxygen demand. Although fish production did not increase as the result of greater dissolved oxygen availability, fish survival was higher in the treated ponds (P=0.1). At the maximum daily feeding rate of 75 kg/ha, water quality was not severely impaired in any of the ponds. The bio-organic catalyst product might have greater benefits in ponds with higher stocking and feeding rates. Information on the mechanism of action of bio-catalyst additions in pond ecosystems would be useful in determining their potential benefits to pond aquaculture. |
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Palavras-Chave: |
Ammonia nitrogen; Fish analysis; Oxigen concentration; Pond water. |
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Thesagro: |
Bactéria. |
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Thesaurus Nal: |
data analysis; soil analysis; water quality. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207433/1/Queiroz-Evalution.pdf
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Marc: |
LEADER 01896naa a2200241 a 4500
001 1013082
005 2022-04-22
008 1998 bl uuuu u00u1 u #d
100 1 $aQUEIROZ, J. F. de
245 $aEvaluation of a bio-organic catalyst in channel catfish, ictalurus punctatus, ponds.$h[electronic resource]
260 $c1998
520 $aA bio-organic catalyst was tested in ponds used to grow channel catfish , Ictalurus punctatus, at Auburn, Alabama, for its effect on water quality, soil organic carbon, and channel catfish production. Although there were no significant differences (P>0.1), ponds treated with the bio-organic catalyst tended to have higher concentrations of dissolved oxygen than control ponds during summer months even though all ponds were aerated mechanically. Data on water quality and soil organic carbon suggested that the bio-organic catalyst caused a slight but statistically insignificant inhibition of phytoplankton productivity, which in turn lessened the nighttime oxygen demand. Although fish production did not increase as the result of greater dissolved oxygen availability, fish survival was higher in the treated ponds (P=0.1). At the maximum daily feeding rate of 75 kg/ha, water quality was not severely impaired in any of the ponds. The bio-organic catalyst product might have greater benefits in ponds with higher stocking and feeding rates. Information on the mechanism of action of bio-catalyst additions in pond ecosystems would be useful in determining their potential benefits to pond aquaculture.
650 $adata analysis
650 $asoil analysis
650 $awater quality
650 $aBactéria
653 $aAmmonia nitrogen
653 $aFish analysis
653 $aOxigen concentration
653 $aPond water
700 1 $aBOYD, C. E.
700 1 $aGROSS, A.
773 $tJournal of Applied Aquaculture$gv.8, n.2, p.49-61, 1998.
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Embrapa Meio Ambiente (CNPMA) |
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