2D plot of the principal component analysis for repletion
index, gonadosomatic (gonad) index and non-calcified
Rhodophyta of the gut contents pooled per seasons in the
sea urchins studied. (NcRha) non-calcified Rhodophyta-autumn;
(NcRhs) non-calcified Rhodophyta-summer; (NcRhsp)
non-calcified Rhodophyta-spring; (NcRhw) non-calcified
Rhodophyta-winter; (GIa) gonad index-autumn; (GIs) gonad
index-summer; (GIsp) gonad index-spring; (GIw) gonad
index-winter; (RIa) repletion index-autumn; (RIs) repletion
index-summer; (RIsp) repletion index-spring; (RIw) repletion
index-winte