I couldn't find the rule but you can call the local DLE office to be sure.
Additional regional gear restrictions may apply in your county. Call the local DLE offices listed here.
West Palm Beach, 561-625-5122
Read more: http://www.floridasportsman.com/regs/#ixzz1FUN4ei00
Hook-and-line anglers must tend their gear at all times to prevent people, marine life, and shore life from becoming entangled in the line or injured by the hook. Also, it is against the law to intentionally discard any monofilament netting or line into or onto state waters. Monofilament line can entangle birds, marine mammals, marine turtles, and fish, often injuring or killing them.
Read more: http://www.floridasportsman.com/regs/#ixzz1FUMrTA8u