Determination of the similarity between gonads recovered from single sea urchins (Evechinus chloroticus) compared to the similarity of gonads recovered from different urchins

► The inherent variability of sea urchin gonads complicates shelf-life trials. ► Gonads from a single urchin had less variation than gonads from different urchins. ► Using gonads from single urchins will enhance shelf-life trials reproducibility.