NH Rocky Intertidal
Common organisms of the NH Rocky Coast
Long-claw Hermit Crab
Pagurus longicarpus, the long-clawed hermit crab, is a small (up to 1⁄2 in or 1.27 cm) common subtidal decapod ranging out to 150 ft (46 m) deep found living in shells from periwinkles, oyster drills, and eastern mud snails. It is found from Nova Scotia to Florida and Texas.
Acorn Barnacle
Semibalanus balanoides is a common and widespread boreo-arctic species of acorn barnacle. It is common on rocks and other substrates in the intertidal zone of north-western Europe and both coasts of North America.
American Lobster
The American lobster, Homarus americanus, is a species of lobster found on the Atlantic coast of North America, chiefly from Labrador to New Jersey. Within North America, it is also known as the northern lobster or Maine lobster. It can reach a body length of 64 cm (25 in), and a mass of over 20 kilograms (44 lb), making it the heaviest crustacean in the ...more ↓
Atlantic Horseshoe Crab
The Atlantic horseshoe crab, Limulus polyphemus, is a marine chelicerate arthropod. Despite its name, it is more closely related to spiders, ticks, and scorpions than to crabs. Horseshoe crabs are most commonly found in the Gulf of Mexico and along the northern Atlantic coast of North America. A main area of annual migration is Delaware Bay, although stray individuals are ...more ↓
Atlantic Rock Crab
Cancer irroratus (common name the Atlantic rock crab or peekytoe crab) is a crab in the genus Cancer. It is found from Labrador to South Carolina at depths up to 2,600 ft (790 m), and reaches 133 mm (5.2 in) across the carapace.
Green Shore Crab
Carcinus maenas is a common littoral crab, and an important invasive species, listed among the 100 "world's worst alien invasive species". It is native to the north-east Atlantic Ocean and Baltic Sea, but has colonised similar habitats in Australia, South Africa, South America and both Atlantic and Pacific coasts of North America. It grows to a carapace width of 90 millimetres ...more ↓
Jonah Crab
The Jonah crab, Cancer borealis, is a species of crab found on the Atlantic coast of North America. It is closely related to the Dungeness crab of the Pacific coast, and is known for its strong claws, although it is not a very aggressive species. It has been fished on a small scale since the 1970s, with less than 1,500 tonnes being caught annually.
Idotea
Idotea is a genus of isopod crustaceans, mostly from cold temperate waters. The taxonomy of the genus is still in doubt, and many of the currently recognised species may be taxonomic synonyms, and others may be moved to different genera. The genus Idotea includes the following species:
