Southeast Alaska's king salmon trollers will bring back both seafood and science during their reopened fishery next month, thanks to two citizen-based projects.
Scientists expect a future with warmer oceans and more marine heat waves. But there’s a lack of data to explain how climate change is shaping Southeast fisheries. Now, two new citizen science projects from Alaska Sea Grant and the Alaska Trollers Association will help longtime troll fishermen like Brewer take the lead to gather data about how the waters they depend on are changing.
Knowing temperature and salinity is important because they shape ocean mixing, a natural process where warmer surface water mixes with cold, nutrient-rich water from further down in the water column. That process triggers spring phytoplankton blooms. To fill those gaps, Hennon’s project relies on the people who are already out on the water — fishermen who will take regular measurements at different depths near their fishing grounds using electronic sensors on their fishing lines.
Sitka fisherman Jim Moore, who serves on the Alaska Trollers Association board, says the data will also help fishermen make sense of decades of observations out on the water.
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