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Introduction Introduction

Introduction

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In the past, measures of human interactions with natural capital in the marine domain have been restricted to measurements of the income generated for the use of the natural resource, such as income from the sale of wild caught fish. It has long been recognised, though, that focussing solely on measuring income omits changes in the stocks of natural assets, often leading to their mismanagement. This is most clearly seen in the instances of overexploitation of fisheries in the pursuit of income growth. More recently, the physical assessments of marine natural capital accounts are based on the ecosystem condition (compiled from key characteristics) and extent. Eutrophication affects the ecosystem condition by disturbing the balance of organisms and affecting the quality of water. Therefore, it is useful to have a dataset for current and future eutrophication levels as NCA is affected by this.

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