入侵福寿螺的代谢活动对红树林中本地底栖螺的生存产生负面影响。
Metabolic Activity of Invasive Apple Snails Negatively Affects the Survival of Native Benthic Snail in Mangrove.
作者信息
Liu Jinling, Zhang Caiying, Yu Huixiu, Fu Zixin, Xie Huizhen, Wang Yiming, Zhao Benliang, Li Qing, Kuang Kailin, Lin Huanting
机构信息
College of Biology and Food Engineering, Guangdong University of Education, Guangzhou 510303, China.
College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
出版信息
Biology (Basel). 2025 Jan 29;14(2):141. doi: 10.3390/biology14020141.
The golden apple snail (GAS, ) has invaded mangrove forests. The effect of water contaminated by metabolic activity of GAS feeding on (T1), (T2), and without food (CK) on the native mangrove black helmet snail (BHS, ) was investigated under salinity conditions. The GAS deteriorated saline water quality (2.5‱). DO contents in T1 and T2 approached zero at 9 d. Compared to CK, the contents of COD, total N, NH, NO, and total P of the contaminated water in T1 increased by 297%, 205%, 262%, 210%, and 518% after 9 d, while these indicators in T2 increased by 74%, 31%, 57%, 326%, and 154%, respectively. The LC of the contaminated water in T1 against the BHS reached 22.72%. The weight of the BHS exposed to the 100% contaminated water in T1 and T2 significantly decreased after exposure. The content of GPT of the BHS exposed to the 100%-contaminated water in T1 and T2 increased by 55% and 26%, while the MDA content increased by 38% and 34%. The 100%-contaminated water in T1 led to cell degeneration and incomplete structure in the hepatopancreas tissue of the BHS. The GAS feeding on holly mangroves can compete against native mangrove snails through water deterioration.
福寿螺已入侵红树林。在盐度条件下，研究了福寿螺摄食代谢活动污染的水对本地红树林黑金刚螺（BHS）在有食物（T1）、有食物（T2）和无食物（CK）情况下的影响。福寿螺使盐水水质恶化（2.5‰）。9天时，T1和T2中的溶解氧含量接近零。与CK相比，9天后T1中污染水的化学需氧量、总氮、氨氮、亚硝酸盐氮和总磷含量分别增加了297%、205%、262%、210%和518%，而T2中的这些指标分别增加了74%、31%、57%、326%和154%。T1中污染水对BHS的致死浓度达到22.72%。暴露于T1和T2中100%污染水的BHS体重在暴露后显著下降。暴露于T1和T2中100%污染水的BHS谷丙转氨酶含量分别增加了55%和26%，而丙二醛含量分别增加了38%和34%。T1中100%污染的水导致BHS肝胰腺组织细胞变性和结构不完整。以冬红树林为食的福寿螺可通过水质恶化与本地红树林螺竞争。
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