For the purposes of this Regulation:

(a) marine organisms

shall mean all marine fish, including anadromous and catadromous species during their marine life, crustaceans and molluscs and parts thereof;

(b) mesh size

of a towed net shall mean the mesh size of any cod-end or extension piece found on board a fishing vessel and attached to or suitable for attachment to any towed net. The mesh size shall be determined by procedures specified in Regulation (EEC) No 2108/8413. This definition of mesh size shall not be applied to mesh size of square-meshed netting;

(c) multiple twine netting

shall mean netting constructed of two or more twines, where the twines can be separated between the knots without damage to the twine structure;

(d) square-meshed netting

shall mean a construction of netting mounted so that of the two sets of parallel lines formed by the mesh bars, one set is parallel to, and the other at right angles to, the long axis of the net;

(e) mesh size of a square-meshed panel or window

shall mean the largest determinable mesh size of such a panel or window inserted into a towed net. The mesh size shall be determined by procedures in Regulation (EEC) No 2108/84;

(f) knotless netting

shall mean netting which is composed of meshes of four sides of approximately equal length in which the corners of the meshes are formed by the interweaving of the twines of two adjacent sides of the mesh;

(g) bottom set gill nets or entangling nets

shall mean any fixed gear made up of a single piece of net, fixed, or capable of being fixed, by any means to the bottom of the sea;

(h) trammel nets

shall mean any fixed gear made up of two or more pieces of net hung jointly in parallel on a single headline, fixed, or capable of being fixed, by any means to the bottom of the sea.