i was watching Bear Grylls, and at minute 14:30 here he is seen eating a sea cucumber:
according to this, the chinese consider it a delicacy, whereas i always keep my hands clear of them, when i am looking under rocks etc as i thought they are poisonous (isnt that why bigger fish dont eat them?)
http://www.vocativ.com/money/the1/the-sea-cucumbers-pickle-in-china/ (http://www.vocativ.com/money/the1/the-sea-cucumbers-pickle-in-china/)
this link also mentions the mediterranean one
http://scialert.net/fulltext/?doi=ajava.2012.851.859 (http://scialert.net/fulltext/?doi=ajava.2012.851.859)
were these harvested here in the past?
obviously , dont take the above websites as safe advise, many sea creatures are poisonous
. consult your doctor before attempting to taste any new sea creature