Invasion
Invasion Description
1st Record: Appledore Island/ME/Gulf of Maine (2011, Science Daily 9/13/2012)
Geographic Extent
Appledore Island/ME/Gulf of Maine (2011, Science Daily 9/13/2012); Rye Beach/NH/Gulf of Maine (2012, Newton et al. 2013, drifting)
Vectors
Level | Vector |
---|---|
Alternate | Hull Fouling |
Alternate | Natural Dispersal |
Regional Impacts
Ecological Impact | Habitat Change | |
Around the Isles of Shoals, NH-ME, from the 1979 to 2015, kelps and other larger brown seaweeds were being replaced by smaller, bushier red seaweeds (Bonnemaisonia hamifera, Dasysiphonia japonica, and Neosiphonia spp.) and Codium fragile, increasing the structural complexity of the environment, and the abundance and diversity of meso-sized invertebrates (Dijkstra et al. 2017). The community of short, dense red seaweeds, expanding in the Gulf of Maine, is less preferred by a mid-sized native fish, Tsutogolabris adpersus (Cunner), compared to the declining beds of taller, simpler native kelp (Saccharina latissimus) (O'Brien et al. 2018). | ||