Lunella undulata is a subtropical-temperate marine gastropod which is harvested commercially from temperate reefs in Australia. This paper aimed to evaluate monthly variation in the condition index (CI) and biochemical composition of the foot tissue of L. undulata in relation to the spawning cycle. The gonadosomatic index (GSI) varied significantly between males and females and across months (P = 0.0001), ranging from 43% to 70% in males and 41% to 71% for females. The highest GSI, as well as the highest CI for both sexes was recorded in December and April, whilst meat yield peaked in January, September and October. Protein, lipid, fatty acid and heavy metals in the foot tissue also significantly varied between months (P < 0.05). Throughout all 14 months of sampling, the foot tissue of L. undulata showed good nutritional quality, with high levels of protein and the polyunsaturated fatty acids, docosapentaenoic acid, eicosapentaenoic acid and arachidonic acid. Overall, despite some temporal variability in the biochemical composition, L. undulata could be harvested at any time of the year for human consumption, although it may be best to avoid peak spawning times, which occur around January in northern NSW.

Lunella undulata是一种亚热带-温带海洋腹足纲动物，是从澳大利亚的温带礁石商业上收获的。本文旨在评估月季L. undulata足部组织的状况指数（CI）和生化组成与产卵周期的关系。男性和女性之间以及整个月间的性腺体指数（GSI）均存在显着差异（P =  0.0001），男性为43％至70％，女性为41％至71％。分别在12月和4月记录了最高的GSI和最高的CI，而肉类产量在1月，9月和10月达到峰值。足部组织中的蛋白质，脂质，脂肪酸和重金属在数月之间也存在显着差异（P <0.05）。纵观所有14个月抽检，脚下组织L. undulata表现出良好的营养品质，具有高水平的蛋白质和不饱和脂肪酸，二十二碳五烯酸，二十碳五烯酸和花生四烯酸。总体而言，尽管生化成分有一定的时间变化，但一年中的任何时候都可以收获平菇（L. undulata）以供人类食用，尽管最好避免产卵高峰期，高峰期发生在新南威尔士州北部。