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The Atlantic surfclam (Spisula solidissima) fishery generates approximately USD 30 million in landings revenues annually, distributed across ports throughout the US Mid-Atlantic and Northeast. Overlap between areas of Atlantic surfclam harvests and offshore wind energy leasing make the fishery vulnerable to exclusion and effort displacement as development expands in the region. An existing integrated bioeconomic agent-based model, including spatial dynamics in Atlantic surfclam stock biology, heterogeneous captain behaviour, and federal management processes, was extended to incorporate costs and revenues for fishing vessels and processors and used to evaluate the potential economic effects of offshore wind development on the Atlantic surfclam fishery. Fishing activity and economic outcomes were simulated under different offshore wind energy development scenarios that impose spatial restrictions on Atlantic surfclam vessel fishing and transiting behaviour. Decreases in the number of trips and shifts in the spatial distribution of fishing effort reduced revenues for Atlantic surfclam fishing vessels and processors by ∼3–15% and increased average fishing costs by < 1–5%, with impacts varying across development scenarios and fishing ports. The modelling approach used in this analysis has potential for addressing additional questions surrounding sustainable ocean multi-use and further quantifying interactions between offshore wind energy development and commercial fisheries.
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Global GIS Mapping of Ocean Multi-Use Potential with Offshore Wind and Tourism
Human activity along our coasts and throughout our oceans has been increasing over the past few decades. In 2017, the output of the global Blue Economy was estimated at €1.3 trillion, and that value is expected to more than double by 2030. Offshore wind and tourism are major sectors in the blue economy, and they have the potential to function jointly through multi-use, thereby creating added benefits for both sectors as well as society overall. To contribute to the assessment of multi-use’s viability, this project has evaluated existing areas where offshore wind and tourism are successfully infused together and globally identified additional areas where they are likely to work together. Taking advantage of multi-use is becoming increasingly beneficial. By having industries function jointly in the same space, instead of parceling out ocean space by industry, the blue economy can remain sustainable and competitive. Early identification of these areas viable for offshore wind and tourism multi-use is important not only to businesses and coastal communities, but to the sustainable future of our oceans. The areas that are likely to benefit the most from this form of multi-use can be identified using GIS to analyze ocean space. First, datasets including ship density, wind speed, light at night, and tourism arrivals were used to understand both environmental and social factors indicative of supporting this form of multi-use. Then, these factors were spatially quantified and aggregated together in ArcGIS to identify locations best suited to combining offshore wind and tourism. Results indicate a higher potential for multi-use success in higher populated and more developed regions. Low population limits the potential for this type of multi-use in many areas, but a smaller-scale, regional analysis would provide more detailed insight into specific regions.
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- Award ID(s):
- 2022355
- PAR ID:
- 10350073
- Date Published:
- Journal Name:
- Ocean Sciences Meeting
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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