Understanding toxic benthic cyanobacteria prevalence and risk factors in Nova Scotia surface waters

了解新斯科舍省地表水中有毒底栖蓝藻的流行率和危险因素

• 批准号: 576532-2022
• 负责人: Jamieson, RobRC
• 金额: $ 7.26万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=749136
• 关键词: Understanding; toxic; benthic; cyanobacteria; prevalence

Surface waters throughout Canada are increasingly impacted by cyanobacteria. Numerous cyanobacteria species produce toxic compounds which pose a significant health threat to humans and animals, and impair the use of water bodies for drinking water, recreation, and agriculture. Cyanobacteria can be either planktonic (free floating), or benthic (attached to stream and lake beds). The factors that contribute to planktonic cyanobacteria growth have received significant attention, however, the ecology of benthic cyanobacteria in Canadian surface waters is poorly understood. In most regions of Canada, including Nova Scotia, there is a paucity of research focused on understanding how prevalent these organisms are, or what factors contribute to blooms that could pose a risk to human and animal health. This issue has come to forefront in Atlantic Canada as there have been a growing number of animal deaths associated with ingestion of toxic benthic cyanobacteria. The primary objective of this research project is to characterize the risks posed by toxic benthic cyanobacteria in Nova Scotia surface water systems. This research will aim to identify environmental factors that contribute to the proliferation of benthic cyanobacteria and produce guidance and recommendations for managing associated human and animal health risks. This project will actively engage a variety of organizations to facilitate the research program and to transfer knowledge to a broad network of individuals involved in managing water resources and public safety in Nova Scotia. This initiative involves key partner organizations, at three levels of government (municipal, provincial, federal), that are responsible for water resources management and implementing policies to prevent humans and animals from being exposed to cyanobacteria toxins. The outcomes of this project will also have broad impact on the science and management of toxic benthic cyanobacteria risks across Canada.

整个加拿大的地表水受到蓝藻的影响越来越大。许多蓝藻物种产生有毒化合物，对人类和动物的健康构成重大威胁，并损害饮用水、娱乐和农业水体的使用。蓝藻既可以是浮游的(自由漂浮)，也可以是底栖的(附着在溪床和湖床上)。影响浮游蓝藻生长的因素已经引起了人们的广泛关注，然而，加拿大地表水中底栖蓝藻的生态却知之甚少。在加拿大的大多数地区，包括新斯科舍省，缺乏集中于了解这些微生物有多普遍，或者哪些因素导致水华可能对人类和动物健康构成风险的研究。随着越来越多的动物因摄入有毒底栖蓝藻而死亡，这一问题在大西洋加拿大已成为最重要的问题。这项研究项目的主要目标是确定有毒底栖蓝藻在新斯科舍省地表水系统中构成的风险。这项研究的目的是确定促成底栖蓝细菌繁殖的环境因素，并为管理相关的人类和动物健康风险提供指导和建议。该项目将积极参与各种组织，以促进研究计划，并将知识传授给新斯科舍省参与管理水资源和公共安全的广泛个人网络。这一倡议涉及三级政府(市、省、联邦)的关键伙伴组织，它们负责水资源管理和执行防止人类和动物接触蓝藻毒素的政策。该项目的成果还将对加拿大各地有毒底栖蓝藻风险的科学和管理产生广泛影响。