Lessons can be learned from applying traditional knowledge, involving fishers and building on practices supported by those individuals". While not extensively discussed, the need for adequate fisheries data in light of climate change may be an important consideration given that many fisheries management practices are based on historical, single species data sets. If the ocean changes beyond our historic scientific experience, managers and scientists may have a weakened foundation for making predictions and assessing which management actions to take, and also in terms of developing ecosystem strategies. A number of developed nations are actively anticipating, designing and implementing actions to deal with expected climate change impacts on fisheries.