Effects of Excessive Fishing on Coral Reef Ecosystems and Biodiversity

Abstract

Coral reef ecosystems and biodiversity (CRE&B)are vital for humid and semi-tropical coastal populations, small-island emerging economies, and native people since they offer essential ecological services,including food supply, economic possibilities, carbon storage, and storm shelter. Excessive fishing may significantly destabilize CRE&Bglobally while gathering at acceptable levels can enhance fish yields without harming CRE. The dispersion capabilities of CREorganisms result in densely interconnected CRE&Bof reef fisheries relyingon geographically explicit mechanisms, including the ripple effect and illegal fishing inside ocean-safeguarded zones. Nevertheless, a significant portion of the work about CRE&B preservation and governance has mostly focused on excessive fishing at a regional level, neglecting the impact of varying geographical trends in fishing intensity on reef ecology at territorial and local scales. A linked human-ecology framework has beendevelopedto assess the responses of CREand vegetarian reef-associated fish to excessive aquaculture at various geographical scales. Coral and reef-associated species exhibit contrasting responses to habitat destruction caused by excessive fishing, and a possible spillover impact from marine protection zones into excessively fished regions benefits coral species far lessthan it does for reef fish.