Natural disasters have altered the landscape of Montserrat’s marine environment significantly over the past 30 years, forcing rapid adaptation of marine species and the human population that relies upon them. Volcanic activity has led to an abundance of volcanic sediment, which has seen rise to the expansion of the island’s sand mining and aggregate industry. Similarly, a series of volcanic eruptions has resulted in smothered fishing grounds and maritime exclusion zones, increasing the pressure on the remaining accessible marine environment. Recent increases in shipping activity, due to the expanding aggregate sector, partnered with a lack of official marine spatial planning, has led to the west coast of the island becoming a stakeholder conflict hotspot. Regular interactions between fishing gear and shipping vessels were resulting in damaged and lost fish pots and causing physical damage and increased ghost-fishing on the coral reefs, with additional impacts on fisher livelihoods. This paper builds upon earlier work in Montserrat to engage fishers in fisheries data collection programmes. Here we use data from Montserrat’s fishing fleet to understand the distribution and intensity of fish pot activity within the conflict area. Maximum activity was distributed along the edge of the reef front, near the drop-off, with the greatest intensity toward the south. These data, and outcomes from stakeholder consultation, have allowed the relevant authorities and decision-makers to identify a suitable shipping route that avoids pot-based fishing grounds, while remaining as close inshore as feasible, to avoid unnecessary fuel costs for shipping vessels. As a result, the Montserrat Port Authority has implemented a restricted area around the identified fishing grounds, in which commercial vessels are not allowed to transit. This intervention represents a “win-win” solution, reducing the risk of commercial vessel-fishing gear conflict in the southwestern pot-based fishing grounds, without substantially increasing the burden of excess travel on commercial vessels. Here we show how engagement with the fishing community and voluntary participation in data collection has supported a conflict resolution deemed suitable to both parties; allowing the needs of the smaller traditional fishing sector to influence management of the rapidly expanding, high value aggregate sector.

The global COVID-19 pandemic of 2020 has forced small island states to make rapid changes to the way they manage their marine estates following changes in global shipping practices and access which are essential for the supply of food items and island’s infrastructure. Following the closure of the border of neighboring French Polynesia, changes had to be made to the Pitcairn Islands’ sole supply vessel route, which resulted in the vessel requiring to set anchor on arrival at the island to conserve fuel. Considering this change and to ensure the continued protection of vulnerable coral habitats the local government has had to make swift decisions to identify anchoring zones that minimize seabed disturbance. Data collected in January 2020, just prior to the pandemic, were assessed using a rapid assessment method and combined with earth observation data to create the first shallow water (<∼20 m) habitat map of this island. The results show the distribution of vulnerable coral communities and other habitats, achieving an accuracy of 68% compared with previously collected datasets making the results the best available evidence for management purposes. Although the seabed data were not originally collected for this analysis, having both video and stills imagery aligned with global positioning meant a rapid assessment method could be easily applied to the data. The assessment technique used has resulted in the first reliable habitat distribution maps to be produced in a management critical timeframe, providing managers with the evidence they required to make informed decisions relating to the protection and conservation of Pitcairn’s pristine, marine habitats during these unprecedented times.