TY - GEN AU - Ayman Abdelaziz Elsayed AU - A.A.Galal , AU - A.Sultan Monem , AU - F.Lecni , AU - Zenab Khalil , TI - Effect of solar radiation on some phytoplankton / PY - 2007/// CY - Cairo : PB - Ayman Abdelaziz Elsayed , KW - Phytoplankton KW - Solar radiation KW - UV - B N1 - Thesis (Ph.D.) - Cairo University - Faculty Of Science - Department Of Biophysics; Issued also as CD N2 - The depletion of stratospheric ozone layer mainly due to anthropogically released pollutants such as chlorofluorocarbon , has resulted in an increase in the solar ultraviolet (UV - B) radiation (280 to 320 nm) that reaches the earth's surface.In this work intensive measurements of ultraviolet radiation UR - http://172.23.153.220/th.pdf ER -