On the breeding of Northern Shrimp Pandalus eous in the waters off Noto Peninsula, the Sea of Japan

From the analysis of monthly samples caught at different depths, the follow ing results were obtained. The Northern Shrimp spawns eggs in March and Apr il, and hatches larvae in January and February after a ovigerous period of about 10 months. The species spawns every other year. Similar characteristi cs were found for the ovigerous period and spawning interval among populati ons living in cold waters. The reproduction strategy of this species is to spawn many eggs per clutch in spite of its slow growth rate and late spawni ng age.