The Invasive Species Alliance of Nova Scotia (ISANS) is a non-profit group of individuals and organizations focused on improved communication and information sharing to better address the threat of invasive alien species at the provincial level. ISANS is hosted by the Acadia Centre for Estuarine Research (ACER) at Acadia University, centrally located within the province. Acadia is a non-profit, charitable organization that provides ISANS with administrative support, work space, and access to state of the art meeting and workshop facilities.

Since its initial formation as an ad hoc group in 2007, ISANS has hosted a two-day provincial planning workshop, solicited input from stakeholders around the province, formalized its structure, and developed a Terms of Reference, a Strategic Plan, and a five-year workplan. ISANS is a formative member of the Atlantic Invasive Alien Species Network and the National Invasive Species Working Group, and has participated in two National Invasive Alien Species Forums, as well as the development of National Early Detection Rapid Response (EDRR) Framework for invasive plants in Canada. Current ISANS projects include a legislative review, species list development, website development, and the production of outreach materials.

ISANS Steering Committee members have included representatives from the following agencies and organizations: Acadia University, Cape Breton University, Maritime Aboriginal Peoples Council – IKANAWTIKET initiative, Clean Annapolis River Project, Ecology Action Centre, Mersey Tobeatic Research Institute, Nova Scotia Departments of Agriculture, Natural Resources, and Transportation and Infrastructure Renewal, Canadian Food Inspection Agency, and the Department of Fisheries and Oceans.