Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou, 510642, China.
Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China.
Sci Rep. 2023 Oct 23;13(1):18101. doi: 10.1038/s41598-023-43071-4.
Pomacea canaliculata was by far one of the most harmful invasive organisms in the world, causing serious harm to aquatic crops and ecosystem. Calcium carbonate is a common component of aquatic environment, which is important for the growth of Pomacea canaliculata. Therefore, the objective of this study was to investigate the response characteristics of P. canaliculata suffered shell breakage to the addition of calcium carbonate in water environment. In this experiment, we explored the effects of calcium carbonate addition on the P. canaliculata shell repair rate, food intake, egg production, shell strength, and calcium content through breaking the snails shell and the addition of calcium carbonate treatment. The results showed that snail broken-shell repaired mostly within 21 days. The snails experienced a significant increase in shell repair rates during earlier days of the treatment, especially for female snails. Food intake of snails exhibited different patterns when their shells were broken and calcium carbonate was added. Shell breakage treatment combined with calcium carbonate addition significantly increased the diameter of snail eggs compared with the control and the calcium carbonate addition treatment without shell-broken snail group. There was no significant difference in shell strength or calcium content of male snails between the treatments. The study suggests that P. canaliculata exhibits a sex-dependent response pattern when subjected to shell damage and calcium carbonate addition. The findings can provide some references to better understand the invasion mechanism and survival strategy of the P. canaliculata.
福寿螺是目前世界上最具危害性的入侵生物之一，对水生作物和生态系统造成了严重危害。碳酸钙是水生环境中的常见成分，对福寿螺的生长很重要。因此，本研究旨在探讨福寿螺壳破损后对水环境中添加碳酸钙的反应特征。在这项实验中，我们通过打破蜗牛壳和添加碳酸钙处理，探讨了添加碳酸钙对福寿螺壳修复率、食物摄入、产卵、壳强度和钙含量的影响。结果表明，蜗牛的壳在 21 天内大部分得到了修复。在处理的早期，蜗牛的壳修复率显著增加，尤其是雌性蜗牛。当蜗牛的壳被打破并添加碳酸钙时，它们的食物摄入表现出不同的模式。与对照组和未打破壳的碳酸钙添加组相比，壳破裂处理结合碳酸钙添加显著增加了蜗牛卵的直径。处理组之间雄性蜗牛的壳强度或钙含量没有显著差异。本研究表明，福寿螺在受到壳损伤和碳酸钙添加时表现出性别依赖性的反应模式。研究结果可以为更好地了解福寿螺的入侵机制和生存策略提供一些参考。
