Flowing-recirculated water system for inducing spawning phase sea lampreys to spawn in the laboratory
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.
Additional publication details
|Publication Subtype||Journal Article|
|Title||Flowing-recirculated water system for inducing spawning phase sea lampreys to spawn in the laboratory|
|Series title||Progressive Fish-Culturist|
|Publisher||Taylor & Francis|
|Contributing office(s)||Western Fisheries Research Center|