This study aims at synthesizing the recent invasion history of Carcinus maenas in the SW Atlantic (approximately 20 years), particularly the northward expansion, based on available published papers, technical reports, and new field surveys. Our analyses extend the known distribution range northwards ca. 330 km. totaling 1000 km along the Argentinean coast since its last detection in Nuevo Gulf in 2015. The expansion rate appeared to slow down during the last 15 years (from 115km/yr. to 30 km/yr.) as the species continues moving northwards into the transition zone between the Magellan and Argentinean biogeographic provinces. In addition, a species distribution model (SDM) is provided at a much finer spatial resolution than previous studies, which accurately foresees suitable areas of invasion in the southern San Jorge Gulf, and predicts a hotspot of invasibility along the Buenos Aires coast if the invasion continues northward. Potential impacts of C. maenas on native species, particularly economically important oyster beds are discussed.

中文翻译：

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欧洲绿色螃蟹Carcinus maenas在西南大西洋的向北扩展：入侵历史约20年后的合成

这项研究的目的是根据现有发表的论文，技术报告和新的田间调查资料，综合最近在大西洋西南地区的食蟹肉的入侵历史（约20年），特别是向北扩张。我们的分析将已知的分布范围向北扩展了大约。330公里 自2015年在新墨西哥湾上一次被发现以来，沿阿根廷海岸的海岸线总计1000公里。在过去15年中，该物种的扩张速度似乎有所放缓（从115公里/年降至30公里/年），原因是该物种继续向北移动至麦哲伦和阿根廷生物地理省之间的过渡区。此外，所提供的物种分布模型（SDM）的空间分辨率比以前的研究要好得多，从而可以准确地预测圣豪尔赫湾南部的合适入侵区域，并预测如果入侵继续向北，布宜诺斯艾利斯沿岸将出现入侵的热点。讨论了南美白对虾对本地物种的潜在影响，特别是对经济上重要的牡蛎床。