IMAS scientists have developed a scalable method to reseed giant kelp forests that have collapsed by up to 95% along eastern Tasmania. The new holdfast-"graft" technique takes hatchery-reared juvenile kelp grown on twine and binds them directly into the holdfast stubs of other seaweeds. By giving the young kelp a stable anchor, survival and attachment rates were up to 40 times higher than twine tied to bare rock or seeded gravel approaches. The method can now be deployed in under a minute per ho