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Isles of Shoals (Gosport) (600 km SW of Halifax, and 10 km off the coast of the Maine-New Hampshire border in the Gulf of Maine)
latitude: 42.977501
longitude: -70.61528
Precision of location: Alexandria Digital Library (with USGS GNIS data)
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Convoluta convoluta | summer 1996 | 3-8 m | Dense populations on macroalgae 3-8 m depth. Never observed here between 1982 and 1995. / macroalgae | |
| Convoluta convoluta | 1998 & summer 1999 | 3-8 m | densities of 19 per cm2, on kelp Laminaria sp & crustose algae convered rocks in sea urchin barrens (Strongylocentrotus droebachiensis), 3-8 m / macroalgae |