Effect of seawater temperature, pH, and nutrients on the distribution and character of low abundance shallow water benthic foraminifera in the Galápagos
Fig 6
Ternary diagrams for major test structure categories of Loeblich & Tappan (1984) [52].
(A) average compositions of foraminifera from each sampled island, including mean pH (red) and mean Fisher α indices (blue), revealing a general increase in hyaline forms along declining pH and Fisher α indices gradients as well as shift toward higher agglutinated content at Española, Santa Fé and Isabela islands with decreasing pH (circled). (B) Ternary representation of a shift from calcareous to agglutinated dominance along a declining pH gradient as represented in Dias et al. [75]. *Baltra pH values are inferred from regression of all site data.