Growth And Feeding Dynamics Of Lake Sturgeon In Oneida Lake, New York:
Results From The First 5 Years Of A Restoration Program
Citation:
Jackson, James R., Anthony J. VanDeValk, Thomas E.
Brooking, Olvin A. vanKeeken and Lars G. Rudstam. 2002. Growth and feeding
dynamics of lake sturgeon, Acipenser fulvescens, in Oneida Lake, New York:
results from the first 5 years of a restoration program. Journal of Applied
Ichthyology. In press.
Abstract:
Assessments
of a lake sturgeon restoration program in Oneida Lake, New York, indicate the
establishment of a large, fast-growing population of juvenile fish. Catches of lake sturgeon since 1996, the
year after the restoration program was initiated, have revealed that age 1-5
lake sturgeon are growing at a rate of 145 mm/year, significantly faster than
other populations for which data are available. Similarly, weight-based
measures of condition suggest a population with abundant food resources.
Amphipods were the most abundant diet item, with zebra mussels becoming
important in the diets of juvenile lake sturgeon larger than 700 mm. The
possible impact of lake sturgeon on the exotic zebra mussel warrants further
study. If suitable spawning habitat is available, current data indicate
potential for Oneida Lake to support a self-sustaining population of lake
sturgeon.