"sample" "PC1: 48% variance" "PC2: 24% variance" "gonad" -157.933866442864 -106.696563551835 "heart" -151.981477380164 -47.9710752650119 "ctenidia" -87.3803083966769 113.491475107246 "juvenile" 124.229652668107 171.118187507879 "larvae" 273.065999551597 -129.942023798278