By Mark Kinver Environment reporter, BBC News
25 November 2018
Never mind silver bells and cockleshells, Mary should have tossed dead fish to help her garden grow.
A team of US researchers has found that sockeye salmon carcasses has helped boost tree growth by up to 20%.
Over a 20-year period, students from the University of Washington tossed dead fish from a stream on to a river bank.
Data shows the nutrients from the rotting flesh boosted growth in the area's trees.
What did the scientists do?
For two decades, students taking part in a long-term study on who/what was eating sockeye salmon in a stream in Alaska have been tossing fish carcasses on to one river bank in order to avoid double counting them during surveys.
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