English to French Science Biology (-tech,-chem,micro-) Marine biology

Corals were sourced from inter alia: colonies threatened by sand smothering (where colonies or fragments had become detached and fallen onto sand), colonies very close to the sea surface that showed damage from exposure at low tide, fragments from colonies damaged by triggerfish, anchors, nets, etc., and ///farmed corals.///

Reef restauration program
Thanks for your help.