the duty to cooperate therefore is a central feature of the convention both the agreement relating to the implementation of part xi of the united nations convention on the law of the sea of december the part xi agreement and the agreement for the implementation of the provisions of the united nations convention on the law of the sea relating to the conservation and management of straddling fish stocks and highly migratory fish stocks the fish stocks agreement reflect the ability of the international community to cooperate towards further developing unclos and addressing gaps and newly emerging issues of note in this regard is the ongoing process established by the general assembly through its resolution on the development of an international legally binding instrument under unclos on the conservation and sustainable use of marine biological diversity of areas beyond national jurisdiction