Biology of Gatnmarellus angulosus (Crustacea, Amphipoda) in the Northwestern Atlantic

• Published in: Journal of the Fisheries Research Board of Canada
• Main Authors: Steele, D. H., Steele, V. J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1972
• Subjects: General Medicine; Newfoundland
• Online Access: http://dx.doi.org/10.1139/f72-203; http://www.nrcresearchpress.com/doi/pdf/10.1139/f72-203

Gammarellus angulosus is a littoral Atlantic amphipod found from eastern Newfoundland south to the Cape Cod region. It is found clinging to algae of highly exposed rocky shores. The life cycle is 1 year. Fifty percent maturity of the females occurs at 8.8 mm. Mature females produce successive broods, except between September and November when they are in the resting stage. Fecundity increases with the size of the female. Young of the November brood are released from the females in May and adults disappear in the summer.