入侵性的鲤鱼威胁大湖区,促使美国和加拿大合作防止其扩散。 Invasive carp threaten the Great Lakes, prompting U.S.-Canada cooperation to prevent their spread.

20世纪70年代为控制藻类而引进的入侵性鲤鱼,继续通过美国伊利诺伊州等河流蔓延,威胁着大湖生态系统。 Invasive carp, introduced in the 1970s to control algae, continue spreading through U.S. rivers like the Illinois, threatening the Great Lakes ecosystem. 美国和加拿大官员正在Grand River等支流协作进行年度电钓调查,以探测和清除鲤鱼,尽管捕获量仍然很少。 U.S. and Canadian officials are collaborating on annual electrofishing surveys in tributaries such as the Grand River to detect and remove carp, though captures remain rare. 科学家警告说,如果鱼类建立繁殖种群,就会破坏本地物种、渔业和水质,一旦扎根,就很可能不可能根除。 Scientists warn the fish could disrupt native species, fisheries, and water quality if they establish breeding populations, with eradication likely impossible once entrenched. 尽管政治紧张,包括贸易争端和对条约的言论,但这一威胁使美国各政治派别的领导人团结起来,并使跨界合作得以持续。 Despite political tensions, including trade disputes and remarks about treaties, the threat has united leaders across the U.S. political spectrum and sustained cross-border cooperation.