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Observations on spawning behaviour of pacific herring in captivity
Hourston, A.S.; Rosenthal, H.; Stacey, N. (1977). Observations on spawning behaviour of pacific herring in captivity. Meeresforsch. 25(3-4): 156-162
In: Meeresforschung = Reports on Marine Research. Berichte der Deutschen Wissenschaftlichen Kommission für Meeresforschung. G. Hempel: Kiel & Hamburg. ISSN 0341-6836
Peer reviewed article  
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  • Hourston, A.S.
  • Rosenthal, H.
  • Stacey, N.
Abstract
    Pacific herring (Clupea harengus) were observed spawning in small circular holding tanks and a large rectangular tank. Each act of egg depodition by the female involved a standard sequence of actions and resulted in an average deposition of <50 eggs. The spawning act was then continued with another egg deposition or the fish returned to the school before initiating another spawning act. The addition of a small amount of sperm initiated spawning by both sexes whereas the presence of eggs did not. The initial release of sperm could be induced by a variety of different types of shock such as handling, abrupt salinity change and chemical pollution, all of which have their counterparts under natural conditions.
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