Two of the most significant international initiatives aimed at the conservation of aquatic ecosystems are the Ramsar Convention on Wetlands and the United Nations Convention on the Law of the Sea (UNCLOS). Both initiatives address different aspects of aquatic ecosystem protection and management, reflecting the global recognition of the ecological, economic, and social importance of aquatic environments. These initiatives have contributed to raising awareness, providing legal frameworks, promoting sustainable use, and supporting conservation practices globally. The Ramsar Convention, formally known as the Convention on Wetlands of International Importance, was adopted in 1971 in Ramsar, Iran. Its primary objective is the conservation and wise use of all wetlands through local, regional, and national actions and international cooperation. Wetlands, including marshes, peatlands, rivers, lakes, estuaries, and coastal lagoons, are among the most productive ecosystems on Earth, supporting high biodiversity and providing critical services such as water purification, flood control, carbon sequestration, and habitat for migratory birds and aquatic species. Recognizing their importance, the Ramsar Convention establishes a framework for countries to designate wetlands of international importance, often referred to as Ramsar Sites. Member countries of the Ramsar Convention are encouraged to adopt national policies and strategies for wetland conservation, integrate wetland management into land-use planning, and cooperate with neighboring countries on transboundary wetland issues. For instance, wetlands along migratory bird routes, such as the East Asian–Australasian Flyway, require international coordination for protection. The convention also emphasizes the concept of “wise use,” which balances ecological conservation with sustainable development. This approach ensures that human activities like fishing, tourism, and agriculture are conducted without degrading the ecological functions of wetlands. Furthermore, the Ramsar Secretariat provides technical guidance, promotes research, and facilitates knowledge exchange among member states, helping countries develop capacity for wetland monitoring, restoration, and management. Several examples illustrate the impact of the Ramsar Convention. The Okavango Delta in Botswana, one of the world’s largest inland deltas, has been designated a Ramsar Site due to its high biodiversity and significance as a freshwater source in a semi-arid region. Similarly, the Sundarbans mangrove forest in India and Bangladesh, also a Ramsar Site, plays a critical role in coastal protection, carbon storage, and supporting aquatic life. Through the Ramsar framework, these wetlands receive international attention, funding opportunities, and technical support for conservation initiatives. Moreover, the convention promotes community engagement by involving local populations in sustainable resource management, recognizing their role in maintaining ecological integrity while benefiting economically. The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982 and enforced in 1994, represents another cornerstone initiative for aquatic ecosystem conservation, specifically addressing the legal governance of oceans and seas. UNCLOS establishes the rights and responsibilities of nations regarding the use of the world’s oceans, including territorial waters, exclusive economic zones (EEZs), and the high seas. It also provides the legal basis for marine environmental protection, regulation of marine resource exploitation, and preservation of biodiversity. Oceans cover over 70% of the Earth’s surface and host highly diverse ecosystems, including coral reefs, seagrass beds, deep-sea hydrothermal vents, and open-ocean habitats, which are increasingly threatened by overfishing, pollution, climate change, and habitat destruction. UNCLOS provides a structured framework