Produces young in small numbers, only about 300,000 when the fish is 20 years old.
- Frimodt, C. 1995 Multilingual illustrated guide to the world's commercial coldwater fish. Fishing News Books, Osney Mead, Oxford, England. 215 p. (Ref. 9988) http://www.fishbase.org/references/FBRefSummary.php?id=9988&speccode=2065
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