FN Archimer Export Format PT J TI Induction of metamorphosis in Paracentrotus lividus larvae (Echinodermata, Echinoidea) BT AF GOSSELIN, P JANGOUX, M AS 1:;2:; FF 1:;2:; C1 FREE UNIV BRUSSELS,BIOL MARINE LAB,B-1050 BRUSSELS,BELGIUM C2 FREE UNIV BRUSSELS,BIOL MARINE LAB,B-1050 BRUSSELS,BELGIUM IF 0.662 TC 25 UR https://archimer.ifremer.fr/doc/00096/20748/18377.pdf LA English DT Article AB Various experiments were performed to investigate the inductive effect of some biotic agents - adult conspecifics, macroalgae of the genera Laminaria and Enteromorpha and detrital particles - on the onset of metamorphosis in competent larvae of the echinoid Paracentrotus lividus. Adult conspecifics and laminarians did not induce larvae to metamorphose. Detrital particles always had a high inductive power, provided that contact occurred between larvae and particles. The inductive effect of enteromorph algae was seasonal, and metamorphosis was induced either through direct contact with the alga or with a surface previously conditioned by the alga, as well by placing larvae in water previously conditioned by the alga. PY 1996 SO Oceanologica Acta SN 0399-1784 PU Gauthier-Villars VL 19 IS 3-4 UT A1996VB83000019 BP 293 EP 296 ID 20748 ER EF