Boosting saltmarsh management for fisheries species

促进渔业物种的盐沼管理

• 批准号: 2882694
• 金额: --
• 依托单位: Bangor University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2882694
• 关键词: Boosting; saltmarsh; management; fisheries; species

This PhD will deliver fundamental research in support of managing saltmarshes, a coastal ecosystem with apurported, yet unqualified, role as a nursery habitat for UK fisheries species. Saltmarshes provide multipleecosystem services, including flood protection, blue carbon sequestration and water quality remediation (Hudson etal. 2021). They are central to Nature Based Solutions (NBS) of Shoreline Management Planning (SMP2),biodiversity conservation and emerging blue-carbon offsetting. Marshes are a priority habitat for restoration andconservation (25 Year Environment Plan, Defra) and integral to national biodiversity management (e.g., EnglandBiodiversity 2020 Strategy).Historically, British saltmarshes were depleted to < 1/4 of their cover, many through land-conversion for agriculture(Hudson et al. 2021). Restoring marshes is costly, involving significant engineering through 'managedrealignment', where defences are breached to convert terrestrial land into saltmarsh. Currently, the annual rate ofrestoration lags strongly behind the rate of losses (45 vs105 hectares/year) (Miles & Richardson 2018). The biggestbarrier to implementing restoration is insufficient data to enable otherwise powerful instruments such as NBS,Payment for Ecosystem services (PES) and National Habitat Compensation Programmes (Hudson et al. 2021). ThisPhD will incentivise these instruments through quantitative substantiation of the ecological benefits of marshrestoration and conservation to fisheries species.Several species that use marshes have high fisheries value (e.g., seabass, mullet, brown shrimp), but are threatened(eel) or their management is limited by data scarcity on nursery habitats (e.g., seabass, Defra 2021). Working withand at the Wildfowl & Wetland Trust (WWT), the student will couple environmental research to stakeholder andpolicy analyses, to identify barriers and solutions to boosting marsh management for fisheries species. The projectincludes contrasts between natural and restored sites to inform on restoration benefits to fisheries.

该博士将提供支持管理盐沼的基础研究，盐沼是一种沿海生态系统，据称具有但不合格的英国渔业物种繁殖栖息地的作用。盐沼提供多种生态系统服务，包括防洪、蓝碳固存和水质修复（Hudson 等人，2021）。它们是海岸线管理规划 (SMP2)、生物多样性保护和新兴蓝碳抵消的基于自然的解决方案 (NBS) 的核心。沼泽是恢复和保护的优先栖息地（25 年环境计划，Defra），也是国家生物多样性管理的组成部分（例如，英格兰生物多样性 2020 战略）。历史上，英国盐沼的面积已减少到 < 1/4，其中许多是通过土地转换而减少的用于农业（Hudson 等人，2021）。恢复沼泽地成本高昂，涉及通过“管理调整”进行重大工程，突破防御措施将陆地变成盐沼。目前，年恢复率远远落后于损失率（45 公顷/年 vs 105 公顷/年）（Miles & Richardson 2018）。实施恢复的最大障碍是数据不足，无法启用国家统计局、生态系统服务支付（PES）和国家栖息地补偿计划等其他强大工具（Hudson 等人，2021）。该博士将通过定量证实沼泽恢复和保护渔业物种的生态效益来激励这些工具。一些利用沼泽的物种具有很高的渔业价值（例如鲈鱼、鲻鱼、褐虾），但受到威胁（鳗鱼）或它们的管理受到限制受到苗圃栖息地数据稀缺的限制（例如鲈鱼，Defra 2021）。该学生将与野禽与湿地信托基金 (WWT) 合作，将环境研究与利益相关者和政策分析结合起来，以确定促进渔业物种沼泽管理的障碍和解决方案。该项目包括自然地点和恢复地点之间的对比，以了解恢复对渔业的好处。