21. Urges States, relevant international organizations and regional and subregional fisheries management organizations and arrangements that have not done so to take action to reduce or eliminate by-catch, fish discards and post-harvest losses, including juvenile fish, consistent with international law and relevant international instruments, including the Code of Conduct for Responsible Fisheries, and in particular to consider measures including, as appropriate, technical measures related to fish size, mesh size or gear, discards, closed seasons and areas and zones reserved for selected fisheries, particularly artisanal fisheries, the establishment of mechanisms for communicating information on areas of high concentration of juvenile fish, taking into account the importance of ensuring confidentiality of such information, and support for studies and research that will minimize by-catch of juvenile fish;
21. 促请尚未采取行动的国家、相关的国际组织以及区域和分区域渔业管理组织和安排按照国际法和相关国际文书、包括《负责任渔业行为守则》采取行动，减少或消除包括幼鱼的副渔获物、弃鱼和捕捞后损失，特别是考虑采取措施，酌情包括与鱼体大小、网目尺寸或渔具、弃鱼、休渔期、禁渔区有关以及为选择性渔业、特别是个体渔业建立保留区的技术性措施，建立机制交流有关幼鱼高度集中的区域的信息，同时考虑到必须确保这些信息的保密性，并支持将有助于尽量减少副获幼鱼的各项研究；