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Growth rate of the sand shrimp,Crangon septemspinosa, in Rhode Island waters is directly proportional to water temperature. For individuals 20–30 mm long, growth is less than 0.4 mm/week during the winter (average water temperature 5 C) and greater than 1.1 mm/week during the summer (20 C). Smaller shrimp (20–30 mm) grow faster than larger shrimp (40–50 mm). Linear relationships between length and...
Abundance of the blue crab,Callinectes sapidus, in Rhode Island estuaries has decreased during the last 30 years. A commercial fishery once existed in areas where the blue crab is no longer found. Composition of the plasma and muscle was studied to see if abnormalities could be recognized. Mean concentrations of total sugars, protein, non-protein nitrogen, phosphate, and chloride did not differ...