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It is epifaunal on eelgrass beds (Ref. 95819). Also inhabits the brown alga Ascophyllym nodosum. Mesoherbivore. Adults graze on the meristematic apices of A. nodosum while small individuals graze on the same alga and its macroepiphytes, preferring the latter (Ref. 104685).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the order Isopoda are mostly gonochoric. Mating behavior: Mating usually occurs before and sometimes during the parturial molt. Sperm transfer is indirect. Life cycle: Eggs are brooded in the marsupium, which later hatch into manca postlarva before developing into adults.