Intensive cultivation of the calanoid copepod Gladioferens imparipes
2001
Payne, M.F. | Rippingale, R.J.
In aquaculture, inclusion of copepod nauplii in the diet of larval fish may increase the number of fish species that can be successfully reared. Pelagic nauplii of calanoid copepods are more available as food items for most marine fish larvae than the predominantly epibenthic nauplii of harpacticoid copepods. However, sustained and substantial production of calanoid copepod nauplii is difficult. Intensive copepod cultures allow reliable and sustained production while utilising less space than extensive culture systems. Three intensive culture techniques for the temperate water estuarine calanoid copepod Gladioferens imparipes are described. These techniques comprise 60-and 500-l batch cultures and 1000-l semi-continuous cultures. Five hundred-litre cultures are part of a recirculating system that features automated nauplius collection and water treatment. Standardised nauplius production, expressed as number of nauplii produced per litre of culture vessel per day, is given for each technique. 878 +/- 46 nauplii/l culture vessel/day was achieved over 420 days for G. imparipes cultured in 500-l vessels. Standardised nauplius production is compared with published data from other copepod culture systems.
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