{"refrec":{"BRefID":294797,"RR":"<b>Potts, W.M.; Booth, A.J.; Hecht, T.; Andrew, T.G.</b> (2006). The life history and fishery potential of <i>Labeo umbratus</i> (Teleostei: Cyprinidae) in five small South African reservoirs. <i>Afr. J. Aquat. Sci. 31(2)</i>: 285-295. <a href=\"https://dx.doi.org/10.2989/16085910609503898\" target=\"_blank\">https://dx.doi.org/10.2989/16085910609503898</a>","BEntID":286867,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Afr. J. Aquat. Sci. 31(2)</i>: 285-295. <a href=\"https://dx.doi.org/10.2989/16085910609503898\" target=\"_blank\">https://dx.doi.org/10.2989/16085910609503898</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Potts, W.M.; Booth, A.J.; Hecht, T.; Andrew, T.G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Potts, W.M. <i>et al.</i>","Englishabstract":"The life histories of five populations of moggel, <i>Labeo umbratus</i>, inhabiting small Eastern Cape reservoirs were compared and the differences related to environmental parameters. A significant positive correlation between fish growth and chlorophyll <i>a</i> was noted in four cases. In the eutrophic Dimbaza Reservoir, slow growth rate was attributed to intraspecific competition. Mortality was lower in populations living amongst fewer predatory species, and also where food was abundant. Length- and age-at-maturity were not affected by environmental factors, but were dependent on growth and mortality. 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