[1] The northernmost point of the island is Spaull Point, named by United Kingdom Antarctic Place-Names Committee (UK-APC) after Vaughan W. Spaull, British Antarctic Survey (BAS) biologist on Signy Island, 1969.
[2] The island has been designated an Antarctic Specially Protected Area (ASPA 109) mainly for its biological values, especially the banks of Chorisodontium–Polytrichum moss turf and Andreaea–Usnea fellfield.
The cryptogamic flora is diverse, though in places the moss turf is subject to damage by Antarctic fur seals.
The mites Stereotydeus villosus and Gamasellus racovitzai, as well as the springtail Cryptopygus antarcticus, are common beneath stones.
[3] Moe Island has been identified as an Important Bird Area (IBA) by BirdLife International because it supports breeding colonies of seabirds.