In 2021, researchers began placing concrete-block oyster reefs in bare eelgrass patches on Prince Edward Island; within two years biomass was about 45 times higher and 45 taxa had colonised the structures

In 2021, researchers began placing concrete-block oyster reefs in bare eelgrass patches on Prince Edward Island; within two years biomass was about 45 times higher and 45 taxa had colonised the structures

Representative Image (AI-generated) What started as piles of concrete blocks on the seafloor off Prince Edward Island soon became a magnet for marine life. Researchers began installing the artificial oyster reefs in 2021 to test whether they could provide some of the ecological functions lost from areas where eelgrass no longer grew. Within two years, … Read more

Sea otters returned to a polluted California estuary in 1984; eelgrass expanded 600%, while marsh-edge erosion later slowed by 69% on average

Sea otters returned to a polluted California estuary in 1984; eelgrass expanded 600%, while marsh-edge erosion later slowed by 69% on average

Sea otters returned to California’s Elkhorn Slough in 1984 when pollution had severely affected its ecosystem. When sea otters returned to California’s Elkhorn Slough in 1984, the estuary was already facing severe environmental pressure. The coastal wetland had high nutrient levels linked to its agriculture-dominated watershed, while eelgrass had fallen to an all-time low of … Read more