Fig. 2From: Does galvanic cathodic protection by aluminum anodes impact marine organisms?Concentration-dependent growth inhibition of P. tricornutum during zinc exposure for 72 h (mean ± SE, n = 3). The dashed line indicates 20% effect level and dotted line shows 5-parametric log-logistic fit of data (b = −10.3, c = 6.8, d = 100, e = 7.99, f = 0.20; Eq. 1)Back to article page