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Timescale of ovarian maturation in Notothenia coriiceps; evidence for a prolonged adolescent phase

Everson, Inigo. 1994 Timescale of ovarian maturation in Notothenia coriiceps; evidence for a prolonged adolescent phase. Journal of Fish Biology, 44 (6). 997-1004. 10.1111/j.1095-8649.1994.tb01271.x

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Abstract/Summary

Ovarian maturation in Notothenia coriiceps is known to include a period during which yolk deposition begins to take place. This ‘adolescent’ phase was thought originally to last for about 1 year. The results from a 2–year study at Signy Island indicate that this adolescent phase lasts for about 4 years. There is also some evidence to indicate that not all sexually mature fish spawn each season. Two reproductive strategies are considered, one where adverse conditions are accompanied by a failure to spawn and an alternative where fecundity is controlled by the number of small oocytes which ripen.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1111/j.1095-8649.1994.tb01271.x
Programmes: BAS Programmes > Pre 2000 programme
ISSN: 0022-1112
Additional Keywords: ovarian maturation, Notothenia coriiceps, Antarctic
Date made live: 25 Jan 2017 09:39 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/516027

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