Fig. 2From: The association of test diameter and gonad weight with some toxic trace metals level in black sea urchin (Stomopneustes variolaris)Relationships of toxic heavy metal concentration in S. variolaris at Mount-Lavinia reef. a Hg versus test diameter, b Hg versus total gonad weight, c Cd versus test diameter, d Cd versus total gonad weight, e Pb versus test diameter, f Pb versus total gonad weight, g As versus test diameter, h As versus total gonad weightBack to article page