Towards a regional monitoring framework for cumulative impacts assessment in the Southern Gulf of St. Lawrence: monitoring fate and effects of agrichemicals

由于城市发展、农业和气候变化，河口和沿海地区在国际上受到环境压力。在圣劳伦斯湾南部沉积物中，已观察到来自陆地的营养物和污染物对这些环境产生重大不利影响。高风险污染物中最主要的是对无脊椎动物，特别是龙虾等甲壳类动物具有高毒性的农药。诺森伯兰海峡部分地区龙虾种群的崩溃、鱼类和无脊椎动物种群的变化以及在当地河口检测到农药残留提供了强有力的初步证据，支持农药可能对南部海湾近岸海洋环境产生重大影响的假设。将使用具有生态和经济重要性的甲壳类无脊椎动物，即龙虾和端足类动物的生物工具，评估这些无脊椎动物对

Estuaries and coastal zones are under environmental pressures internationally due to urban development, agriculture, and climate change. In the Southern Gulf of St. Lawrence sediments, nutrients and contaminants from land have been observed to have significant adverse impacts on these environments. Foremost among high risk contaminants are pesticides that are highly toxic to invertebrates, particularly crustaceans such as lobster. The collapse of lobster populations in parts of the Northumberland Strait and changes to fish and invertebrate populations and the detection of pesticide residues in local estuaries provide strong preliminary evidence to support the hypothesis that pesticides may be exerting significant impacts on the nearshore marine environment in the Southern Gulf. Biological tools using ecologically and economically important crustacean invertebrates, namely lobster and amphipods, will be used to evaluate the sensitivity of these invertebrates to