Ecologically and Biologically Significant Areas (English, ESRI REST)

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ESRI REST

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Publisher-reported update

2026-03-24

Ecologically and Biologically Significant Areas (EBSAs) are areas within Canada's oceans that have been identified through formal scientific assessments as having special biological or ecological significance when compared with the surrounding marine ecosystem. Failure to define an area as an EBSA does not mean that it is unimportant ecologically. All areas serve ecological functions to some extent and require sustainable management. Rather, areas identified as EBSAs should be viewed as the most important areas where, with existing knowledge, regulators and marine users should be particularly risk averse to ensure ecosystems remain healthy and productive. Why are EBSAs identified? EBSA information is used to inform marine planning, including environmental assessment and the siting of marine-based activities, by: Informing and guiding project-specific or regional environmental assessments; Informing and guiding industries and regulators in their planning and operations, for example: EBSAs have been acknowledged and referred to (often as "Special Areas" or "Potentially Sensitive Areas") in oil and gas related assessments; EBSA information has been provided to proponents of…

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