Effect of Size-Grading and Feeding Frequency on Growth and Size Variation of Paddlefish, Polyodon spathula, Juveniles Reared in Ponds

摘要

Paddlefish, Polyodon spathula, are commercially important as a source of black caviar and boneless meat. Currently, wild capture accounts for most of the production in the United States; however, state agencies are increasingly regulating the wild harvest, while market acceptance and demand are increasing. An opportunity exists for the development of paddlefish aquaculture, which requires production of Phase II juveniles (≥150 g), for stocking in ponds and reservoirs (Mims et al. 2009).