sentence: White roe comes from males.
sentences_before: Red roe comes from female scallops.
sentences_after: Scallops release Spermatozoa and ova freely into the water during the mating season. Fertilized ova sink to the bottom. The immature scallop hatches after a few weeks. The larvae drift in the plankton until they go to the bottom again to grow. They usually attach by means of byssal threads.
concept_name: white roe
headings: Scallop Life cycle
categories: Bivalves