Reproduction of Lethenteron camtschaticum
Document source: http://fishbase.de/Reproduction/FishReproSummary.php?ID=2524&GenusName=Lethenteron&SpeciesName=camtschaticum&fc=1&StockCode=2720
 
Main Ref. Morrow, J.E., 1980
Mode dioecism
Fertilization external
Mating type polyandry
Spawning frequency once in a lifetime
Spawning aggregation Ref.  
Batch spawner Ref.  Renaud, C.B., 2011
Reproductive guild guarders
nesters
Parental Care biparental
Description of life cycle and mating behavior Both male and female engage in nest building, removing pebbles and small rocks from the stream bottom. The male uses his sucker to attach himself to the head of the female. The pair arch their bodies and the male wraps himself around the female. Both of the lampreys vibrate rapidly and eggs and sperm are extruded into the nest. Two males may simultaneously mate with a single female. A female will mate several times before her egg supply is exhausted, usually with several males. Ammocoetes spend one to two years in this stage. Upon metamorphosis (occurring from fall through winter, Ref. 12218), the young adults descend the stream to the sea or lakes or larger rivers (occurring in springtime, Ref. 12218) (Ref. 27547).
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(e.g. 9948)
( e.g. cephalopods )
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