Beyond Morphology: COI-Based Molecular Identification of Sea Urchins from Kumu Beach, North Sulawesi
Sea urchins (Echinoidea) play important ecological and economic roles in coastal ecosystems, but morphological identification is often unreliable due to overlapping diagnostic traits among closely related taxa. This study used DNA barcoding of the mitochondrial COI gene to identify a sea urchin specimen from Kumu Beach...