Marine genetic resources (MGRs) sit at the centre of emerging biotechnological innovation, yet the international legal regimes governing their access, use, and benefit-sharing remain fragmented and often contradictory. This article operationalizes Hohfeld’s relational framework to map the legal relations embedded in six core instruments that regulate MGRs: the United Nations Convention on the Law of the Sea (UNCLOS), the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS), the Convention on Biological Diversity (CBD), the Nagoya Protocol, the WIPO Treaty on Genetic Resources and Associated Traditional Knowledge (GRATK), and the Biodiversity Beyond National Jurisdiction (BBNJ) Agreement. The resulting Hohfeldian mapping shows how claim-rights, obligations, powers, and other legal positions are distributed across these regimes, revealing overlapping and sometimes competing legal logics within MGR governance. This approach clarifies the relational structure of these legal positions and highlights how legal form shapes, and occasionally obscures, the exercise of authority, the creation of regulatory gaps, and the persistence of asymmetries, particularly in relation to benefit-sharing and the treatment of digital sequence information. The analysis draws on a manually curated, machine-readable dataset that serves as a resource for further research. The article places the legal governance of MGRs within wider debates on the international law of global commons and sets out a methodological scaffold for comparative and critical legal analysis. It ultimately invites a reconsideration of who owns and who owes what within the evolving governance of MGRs.

This foreword introduces the inaugural International and Comparative Law Quarterly (ICLQ) Forum, a new initiative designed to provide in-depth analysis of a particular field of law within the ICLQ’s sphere of interest. The first Forum focuses on the law of the sea, a subject with which the journal has been closely associated since its inception. The choice of theme reflects both the ICLQ’s historic contributions to maritime scholarship and the renewed urgency of ocean-related legal challenges. The collected contributions examine contemporary developments, including the implementation of the Agreement on Marine Biological Diversity of Areas Beyond National Jurisdiction, climate change and sea-level rise, maritime security, fisheries governance and human rights at sea. Together, they assess the continuing vitality of the United Nations Convention on the Law of the Sea as a ‘living treaty’ and interrogate its capacity to respond to shifting geopolitical, environmental and technological realities. Beyond charting doctrinal evolution, the Forum highlights the law of the sea’s systemic significance for the development of international law more broadly. It invites reflection on whether the traditional State-centric framework can sustain effective ocean governance in the face of accelerating global pressures.

Maritime security challenges are intensifying globally, from armed attacks on shipping in the Red Sea to critical infrastructure sabotage and environmental threats from shadow fleets. These developments have led some to question whether the United Nations Convention on the Law of the Sea (UNCLOS) remains ‘fit for purpose’. This article reframes that debate, suggesting that maritime security operates through a complex assemblage of institutions and mechanisms. In this context, UNCLOS is best understood not as a monolithic ‘constitution’, but as one important site in a more complex and dynamic system of maritime security governance. It examines how the United Nations (UN) system, regional organisations and informal arrangements collectively address maritime security challenges, revealing both the strengths and limitations of this diverse governance landscape. The analysis shows that while this complexity enables flexible responses to varied challenges, it also creates coordination problems and accountability gaps. Rather than calling for a revision of UNCLOS, the article proposes three pathways for recalibrating the system: establishing a dedicated UN maritime security body; addressing interface conflicts through targeted interventions; and selectively formalising successful informal mechanisms.

There is increasing awareness that the ocean touches all aspects of our lives and that a healthy ocean is central to a healthy planet and sustainable future. The ocean is a highly connected system and ocean science is characterized by voluntary international collaboration supported by an enthusiastic and engaged community. Increasingly, it is being recognized that international structures and instruments need to be stronger and more holistic than the current arrangements. This article outlines some perspectives on this, drawing on experience in ocean science and scientists at national, international and intergovernmental levels.