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Flowing-recirculated water system for inducing spawning phase sea lampreys to spawn in the laboratory

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°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.

Publication Year 1995
Title Flowing-recirculated water system for inducing spawning phase sea lampreys to spawn in the laboratory
DOI 10.1577/1548-8640(1995)057<0297:FRWSFI>2.3.CO;2
Authors Kim T. Fredricks, James G. Seelye
Publication Type Article
Publication Subtype Journal Article
Series Title Progressive Fish-Culturist
Index ID 70180317
Record Source USGS Publications Warehouse
USGS Organization Western Fisheries Research Center