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Titolo:
The potential of periphyton-based culture of the native major carp calbaush, Labeo calbasu (Hamilton)
Autore:
Wahab, MA; Azim, ME; Ali, MH; Beveridge, MCM; Khan, S;
Indirizzi:
Univ Agr Sci Bangalore, Dept Fisheries Management, Mymensingh, Bangladesh Univ Agr Sci Bangalore Mymensingh Bangladesh nt, Mymensingh, Bangladesh Univ Stirling, Inst Aquaculture, Stirling FK9 4LA, Scotland Univ StirlingStirling Scotland FK9 4LA ture, Stirling FK9 4LA, Scotland
Titolo Testata:
AQUACULTURE RESEARCH
fascicolo: 6, volume: 30, anno: 1999,
pagine: 409 - 419
SICI:
1355-557X(199906)30:6<409:TPOPCO>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
EXTENSIVE AQUACULTURE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Wahab, MA Univ Agr Sci Bangalore, Dept Fisheries Management, Mymensingh, Bangladesh Univ Agr Sci Bangalore Mymensingh Bangladesh ingh, Bangladesh
Citazione:
M.A. Wahab et al., "The potential of periphyton-based culture of the native major carp calbaush, Labeo calbasu (Hamilton)", AQUAC RES, 30(6), 1999, pp. 409-419

Abstract

The project evaluated the effect of installing scrap bamboo ('kanchi') as a substrate for periphyton on growth and production of the indigenous majorcarp calbaush, Labeo calbasu (Hamilton). The impacts of fish grazing on the periphyton community were also assessed. Six ponds were used, three of which were provided with kanchi poles (700 per pond, spaced 30 cm apart). Ponds were limed and fertilized and stocked with L. calbasu fingerlings (mean total length = 5.16 cm; mean weight = 2.10 g) at a rate of 10 000 fingerlings ha(-1) (75 fish per pond). There were no statistically significant differences in water quality between treatments, although differences in phytoplankton community composition were observed. Zooplankton numbers were the same in both treatments. While there was clear evidence that periphyton was being exploited by the fish, Chlorophycae being most affected, grazing was insufficient to cause significant reductions in total periphyton densities. Fish survival and specific growth rates (SGRs) were significantly higher inponds with substrates, production in treatments with and without scrap bamboo substrate being 712.90 and 399.11 kg ha(-1), respectively, over the 120-day period. However, production in both treatments was low in comparison with other studies, water temperatures (23.6-32.7 degrees C) being less thanoptimum for growth. It was concluded that kanchi and other locally available materials might be used to increase the production of some species of fish, although further evaluation of production economics is required.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 13:02:45