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Sea Grant Tip Sheet Series
AS-500

Northern Crayfish

Northern Crayfish have a greenish color with orange highlights,
especially on their largest claws.

Common name: Northern Crayfish
Scientific name: Orconectes virilis
Production potential: Easy
Marketing potential: Potential: Moderate
Size: 7 - 13 per pound
Market: Bait, food
Temperature Requirements: Growing: 75-85oF
Spawning: 60-70oF
Lethal: 95oF or more
Feed requirements: Protein: 30%
Fat: 4-6%
Spawning requirements: Northern crayfish spawn March-May. Females lay from 200-500 eggs, which hatch in three to ten days.
Most common
production systems:

Ponds

http://ag.ansc.purdue.edu/aquanic/publicat/state/il-in/as-500.htm