Temperature-dependent-growth
Guides
Crangon septemspinosa
sand shrimp, seven-spined bay shrimp
Crangon septemspinosa is a small caridean shrimp distributed along the Atlantic coast of North America from Newfoundland to eastern Florida. Adults reach 7–7.5 cm in length and exhibit sand-colored camouflage. The species is nocturnal, with activity levels and respiration rates increasing at higher temperatures. It occupies diverse marine habitats from intertidal zones to depths of 450 m, including eelgrass beds, salt marshes, and estuaries. Reproductive timing varies geographically: northern populations show bimodal spawning in spring and late autumn, while southern Gulf of St. Lawrence populations reproduce more continuously through spring and summer with reduced autumn activity.