Flowing recirculated-water system for inducing laboratory spawning of sea lampreys
January 1, 1995
We describe a water-recirculating system for inducing spawning of sea lampreys (Petromyzon marinus) held under laboratory conditions. Water temperature in the system was gradually increased to and maintained at 18 +/- 2 degrees C, the optimal temperature for spawning. About 10% freshwater was added daily to prevent buildup of waste products. Sea lampreys were provided substrate (approximately 3-6 cm in diameter) to build nests, and a water velocity of 0.2-0.3 m/s was maintained with an electric trolling motor. Sea lampreys held in this system exhibited characteristic spawning behavior. Prolarvae produced from artificial fertilization of gametes developed according to the standard timeline.
Citation Information
Publication Year | 1995 |
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Title | Flowing recirculated-water system for inducing laboratory spawning of sea lampreys |
Authors | Kim T. Fredricks, James G. Seelye |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Progressive Fish-Culturist |
Index ID | 1000650 |
Record Source | USGS Publications Warehouse |
USGS Organization | Great Lakes Science Center |