Liu Kaiyu, Tao Yijun, Huang Wenhao, Wang Bei, Liu Shenghao, Cong Bailin, Zhou Min, Zhao Linlin
School of Advanced Manufacturing, Fuzhou University, Jinjiang, China.
Marine Ecoloy Research Center, First Institute of Oceanography, Ministry of Natural Resources, Qingdao, China.
BMC Ecol Evol. 2025 Jan 2;25(1):1. doi: 10.1186/s12862-024-02339-7.
Global warming and extreme weather events driven by greenhouse gas emissions are significantly impacting fish survival and reproduction, leading to dramatic consequences for marine biodiversity and ecosystem stability. Comparative analysis of closely related species from a phylogenetic perspective provides valuable insights for biodiversity conservation efforts. The study investigates the effects of climate change on the suitability of habitat and ecological vulnerability of two important sibling fishes, Collichthys lucidus and Collichthys niveatus, in the western Pacific.
This study found that the main driver of ecological niche differences between the two species is the niche contraction of C. niveatus. Predictions from species distribution models indicate that C. lucidus has a wider distribution and greater adaptability under future climate scenarios. Both species will experience significant habitat loss and heightened ecological vulnerability in the southern Yellow Sea. Additionally, the two populations of C. lucidus in the Yangtze River estuary display different levels of ecological vulnerability. These two species also exhibit distinct responses to environmental factors such as temperature and chlorophyll concentration.
The study's findings indicate that climate change will accelerate the population differentiation of C. lucidus and the habitat loss of C. niveatus. These results underscore the importance of prioritizing the southern Yellow Sea in future research and emphasize the necessity of developing adaptive conservation strategies for both species.
由温室气体排放驱动的全球变暖和极端天气事件正显著影响鱼类的生存和繁殖，给海洋生物多样性和生态系统稳定性带来巨大后果。从系统发育角度对近缘物种进行比较分析，为生物多样性保护工作提供了有价值的见解。本研究调查了气候变化对西太平洋两种重要近缘鱼类——中华乌塘鳢（Collichthys lucidus）和斑头乌塘鳢（Collichthys niveatus）栖息地适宜性和生态脆弱性的影响。
本研究发现，两种物种生态位差异的主要驱动因素是斑头乌塘鳢的生态位收缩。物种分布模型的预测表明，在未来气候情景下，中华乌塘鳢具有更广泛的分布和更强的适应性。两种物种在南黄海都将经历显著的栖息地丧失和生态脆弱性加剧。此外，长江口的两个中华乌塘鳢种群表现出不同程度的生态脆弱性。这两种物种对温度和叶绿素浓度等环境因素也表现出不同的响应。
该研究结果表明，气候变化将加速中华乌塘鳢的种群分化和斑头乌塘鳢的栖息地丧失。这些结果强调了在未来研究中优先考虑南黄海的重要性，并强调了为这两种物种制定适应性保护策略的必要性。
