Exploring the potential of providing and feeding pikeperch larvae (Sander lucioperca L.) with euryhaline copepod nauplii: A zoo technical trial |
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| Authors: | Jacob K. Højgaard Thomas A. Rayner Christina K. Jensen Julia L. Overton |
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| Affiliation: | 1. Department of Science and Environment, Roskilde University, Roskilde, Denmark;2. Institute of Marine Biology, National Taiwan Ocean University, Keelung, Taiwan;3. AquaPri Innovation, Egtved, Denmark |
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| Abstract: | Egg hatching and nauplii success from three euryhaline calanoid copepod species at low salinities suggest a promising alternative initial live feed for pikeperch (Sander lucioperca L.) to the conventional live feed. Acartia bifilosa and Eurytemora affinis are viable candidates with egg hatching down to zero salinity, and Acartia tonsa nauplii survive up to 2 h at zero salinity after transfer from low-salinity seawater. When offered A. tonsa and Artemia, pikeperch larvae equally consumed both prey types. We suggest that euryhaline copepods can be a supplement to or even a substitute for the normal live feed currently used as larval feed for pikeperch. |
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| Keywords: | Copepods Artemia first-feeding prey selectivity live feed |
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