The invention relates to a protective device (15) for protecting a fish (2) caught on a hook, said protective device (15) comprising a body (16) and a plurality of elongate protective elements (17), wherein the plurality of protective elements (17) includes first protective elements (17a) having a first buoyancy for being deployed by moving away from the body (16) above the hook and second protective elements (17b) having a second buoyancy, which is less than the first buoyancy, for surrounding the hook.