Warning: DOMDocument::load(): SSL operation failed with code 1. OpenSSL Error messages:
error:140770FC:SSL routines:SSL23_GET_SERVER_HELLO:unknown protocol in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Warning: DOMDocument::load(): Failed to enable crypto in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Warning: DOMDocument::load(https://sealifebase.nrm.se/webservice/AquaMaps/getAMap.php?genus=Echinocardium&species=mediterraneum): failed to open stream: operation failed in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Warning: DOMDocument::load(): I/O warning : failed to load external entity "https://sealifebase.nrm.se/webservice/AquaMaps/getAMap.php?genus=Echinocardium&species=mediterraneum" in C:\Apache24\htdocs\includes\SpeciesSummary.lib.php on line 1236
Life cycle and mating behavior 成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Members of the class Echinoidea are gonochoric. Fertilization is external. Brooding is common, eggs are held either on the peristome, around the periproct or deep into the concavities on the petaloids. Life cycle: Embryos develop into planktotrophic larvae (echinoplateus) and live for several months before they sink to the bottom using their tube feet to adhere on the ground where they metamorphose into young urchins.