Annonce

Ribbon weed, Posidonia australis, meadow in Shark Bay, Western Australia
Ribbon weed, Posidonia australis, meadow in Shark Bay, Western Australia

En enkelt ålegræs plante dækker 180km

Large, perennial, seagrass meadows of the Poseidon’s ribbon weed and the wire weed (Amphibolis antarctica) dominate much of the marine ecosystem in the UNESCO World Heritage Site of Shark Bay, Australia.

Two years ago, scientists discovered some of the seagrass there was a clone of a Poseidon’s ribbon weed (Posidonia australis) that had 40 chromosomes instead of the typical 20. They think half those chromosomes may come from the ribbon weed and half from an unknown species.