Disturbance of Opportunistic Small-Celled Phytoplankton in Lake Kinneret
Species-abundance distributions of Lake Kinneret phytoplankton. Histograms of species abundance, representing species-number distribution according to octaves (i.e., cell abundance duplications), for 2 periods (a, b). (c, d) Rank-abundance distributions of species for the stable and the following disturbed periods. (e) The 5-year (see plates (a, b)) average histograms of species abundance. (f) Phytoplankton disturbance index, representing the average value of 5 leading abundances (see the Methods), in comparison with the index level for 1985.