Aquatic Ecosystems — Environmental Laws

Entry	Year	Description	Impact
42nd Constitutional Amendment Act	1976	This amendment inserted Article 48A (Protection and improvement of environment and safeguarding of forests and wild life) into the Directive Principles of State Policy and Article 51A(g) (Fundamental Duty to protect and improve the natural environment) into the Fundamental Duties.	These insertions provided the constitutional mandate for environmental protection in India, shifting it from a mere administrative concern to a fundamental state responsibility and a citizen's duty. They laid the groundwork for subsequent environmental legislations and judicial pronouncements, including those related to aquatic ecosystems.
Statutory Amendments (e.g., CRZ Notifications)	1988 (Water Act), 1991, 2011, 2018 (CRZ Notifications)	The Water (Prevention and Control of Pollution) Amendment Act, 1988, strengthened the powers of the Central and State Pollution Control Boards. The Coastal Regulation Zone (CRZ) Notifications, issued under the Environment (Protection) Act, 1986, have been periodically revised (notably in 1991, 2011, and 2018) to refine regulations on development activities in coastal areas, including estuaries and backwaters, aiming to balance conservation with sustainable development.	The Water Act amendment enhanced the regulatory teeth for controlling water pollution. The CRZ revisions have progressively attempted to provide clearer guidelines, streamline approvals, and address concerns of both environmental protection and coastal community livelihoods, directly impacting the management of marine and estuarine ecosystems. The 2018 CRZ Notification, for instance, aimed to promote sustainable development while ensuring strict conservation of CRZ-I and CRZ-II areas.

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