On the prospect of the Black Sea sprat fishing success
Direct (correlation) relationship is indicated between the values of the Ukrainian annual catches of the Black Sea sprat for the period 2000-2011 and the unit factor δ W (where δ is climatic changes, reflected by fluctuationsof the Earth rotation velocity, provisionally given in unit fractions; W is solar activity, given in Wolf numbers). The latter suggests the opportunity for the long-term catch forecast by the extrapolation of both factors with regard to quasiperiodicity in their fluctuations.