Mangawhai Harbour and Spit: coastal physical processes and management
- Author
- Hume T
- Year
- 2023
- Journal / Source
- Report prepared for Mangawhai Matters Inc.
- Pages
- 90 pp
- Summary
- This report was commissioned by Mangawhai Matters Inc to assesses the threats to the Mangawhai Harbour. It draws on the science associated with coastal processes and existing knowledge about the Mangawhai harbour and spit (Section 3). It describes the drivers of coastal processes under conditions associated with climate change, sea level rise, and increasing human activity (Section 4). Section 5 summarises potential threats, and the risks they pose. It identifies mitigation and monitoring strategies that might reduce them. Gaps in our knowledge that may need to be addressed to help develop and refine management policies are also identified. Main issues addressed: Protecting the integrity of the spit; sand mining on the open coast; managing water quality; coastal inundation; mangroves; causeways