Parasitism, space constraints, and gonad asymmetry in the pollan ( Coregonus autumnalis )

• Published in: Canadian Journal of Fisheries and Aquatic Sciences
• Main Authors: Harrod, Chris, Griffiths, David
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 2005
• Subjects: Aquatic Science; Ecology, Evolution, Behavior and Systematics; Pollan; Coregonus autumnalis
• Online Access: http://dx.doi.org/10.1139/f05-175; http://www.nrcresearchpress.com/doi/pdf/10.1139/f05-175

Both sexes of Lough Neagh pollan (Coregonus autumnalis) show directional asymmetry in gonad mass, the left being larger than the right in 70% of individuals. The frequency and degree of asymmetry are size independent in males but become progressively more marked in females of >120 g somatic m...