We derive a lower limit on the Beryllium neutrino flux on earth , \Phi ( Be ) _ { min } = 1 \cdot 10 ^ { 9 } cm ^ { -2 } s ^ { -1 } , in the absence of oscillations , by using helioseismic data , the B-neutrino flux measured by Superkamiokande and the hydrogen abundance at the solar center predicted by Standard Solar Model ( SSM ) calculations . We emphasize that this abundance is the only result of SSMs needed for getting \Phi ( Be ) _ { min } . We also derive lower bounds for the Gallium signal , G _ { min } = ( 91 \pm 3 ) SNU , and for the Chlorine signal , C _ { min } = ( 3.24 \pm 0.14 ) SNU , which are about 3 \sigma above their corresponding experimental values , G _ { exp } = ( 72 \pm 6 ) SNU and C _ { exp } = ( 2.56 \pm 0.22 ) SNU .