The significance of photoperiodicity, water temperature and an inherent endogenous rhythm for the production of viable eggs by the African catfish, Clarias gariepinus, kept in subt... von Richter, C.J.J., Viveen, W.J.A.R., Eding, E.H., Sukkel, M., Rothuis, A.J., Van Hoof, M.F.P.M., Van Den Berg, F.G.J., Van Oordt, P.G.W.J.

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The significance of photoperiodicity, water temperature and an inherent endogenous rhythm for the production of viable eggs by the African catfish, Clarias gariepinus, kept in subt... von Richter, C.J.J, Viveen, W.J.A.R, Eding, E.H, Sukkel, M, Rothuis, A.J, Hoof, M.F.P.M. van, Berg, F.G.J. van den, Oordt, P.G.W.J. van

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The significance of photoperiodicity, watertemperature an inherent endogenous rythm for the production of viable eggs by the African catfish von Richter, C.J.J, Viveen, W.J.A.R, Eding, E.H, Sukkel, M, Rothuis, A.J, Hoof, M.F.P.M., van, Berg, F.J.G., van den, Oordt, P.G.W.J., van

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