Journal article

Maternal variability in the blacklip abalone, Haliotis rubra leach (Mollusca : Gastropoda): effect of egg size on fertilisation success

SMH Huchette, JP Soulard, CS Koh, RW Day

AQUACULTURE | ELSEVIER SCIENCE BV | Published : 2004

Abstract

Egg quality has important effects on the performance of invertebrate offspring. Abalone produce eggs variable in size and quality and this may be a strategy to balance the risks between egg size and egg number in a variable environment. Histological sections of mature ovaries are presented. Fertilisation of eggs from seven different females was carried out in the hatchery using a broad range of sperm concentrations to determine the optimum. Fertilised and non-fertilised eggs were measured to determine the importance of size for fertilisation. Optimum sperm concentration was found to be between 5x10(6) and 10(8) sperm per litre (approximately 10,000-200,000 sperm/egg ratios). The development ..

View full abstract

University of Melbourne Researchers