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Publikations-Art
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Kongressbeitrag
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Autoren
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Groth, A.; Focken, U.; Becker, K.
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Erscheinungsjahr
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2001
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Veröffentlicht in
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Tagungsband
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Seite (von - bis)
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54
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Tagungsname
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14. Jahrestagung der Gesellschaft für Tropenökologie
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Tagungsort
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Bremen, Germany
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Tagungsdatum
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13.-16.2.2001
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Schlagworte
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behaviour, feeding behaviour, shrimp
Abstract
Penaeus monodon is an important species in tropical fisheries and aquaculture. Unfavourable weather conditions, poor pond management or equipment failure often lead to low dissolved oxygen (DO) levels in aquaculture ponds. In such cases, farmers make arbitrary adjustments of feeding rates - mostly based on observations of feed remaining on feeding trays - to avoid feed wastage and further oxygen depletion caused by microbial degradation of unconsumed feed. In previous pond studies, maximum gut content of shrimp was negatively correlated with DO values below 4 mg/l. The aim of the current experiment was to quantify the effects of declining oxygen concentrations on shrimp feeding behaviour. [more...]
