2025 Reports 1 to 4 of the Commissioner of the Environment and Sustainable Development to the Parliament of Canada Independent Auditor’s ReportReport 2—Critical Habitat for Species at Risk

2025 Reports 1 to 4 of the Commissioner of the Environment and Sustainable Development to the Parliament of Canada

Report 2—Critical Habitat for Species at Risk

Report 2—Critical Habitat for Species at Risk

At a Glance

The loss and degradation of habitat is the primary threat for most species at risk. To address this threat, it is important to identify the location of the critical habitat that species use. Environment and Climate Change Canada, Fisheries and Oceans Canada, and Parks Canada identified critical habitat using the best available information at the time. In most cases, additional information was needed to further identify the critical habitat through a schedule of studies. However, most studies necessary for the full identification of critical habitat were not completed on time, which could jeopardize the recovery of species at risk.

Environment and Climate Change Canada and Fisheries and Oceans Canada did limited monitoring of the implementation of planned actions from action plans to conserve critical habitat on federal land. The organizations clearly linked only 57% of the planned actions to documentation on activities undertaken. This resulted in a lack of focused effort to get conservation actions completed to conserve and restore critical habitat, which is important to the recovery of most species at risk. This could affect the federal government’s ability to meet its commitment to take urgent action to halt and reverse biodiversity loss by 2030.

Activities resulting in the harmful alteration, disruption, or destruction of fish habitat are prohibited unless otherwise authorized. As a last resort, offset measures to counterbalance the harm done to the critical habitat must be considered. Even though Fisheries and Oceans Canada followed its processes to approve authorizations for activities that destroy or degrade critical habitat, we identified an offset implementation risk when there is no finalized offsetting plan in place prior to granting an authorization. In addition, the department did not have an assessment of how the offsetting plans performed overall.

  Key facts and findings

  • Only 32% of the species at risk had their critical habitat fully identified in their recovery strategy or action plan.
  • Of the 120 studies necessary to fully identify critical habitat, over half (62) were either completed late or overdue. Many of those were overdue by 3 years or more.
  • The organizations clearly monitored 57% of the conservation actions, meaning that they lacked information on the remainder.

  Why we did this audit

  • Populations of species at risk are in decline and the number of species at risk is increasing.
  • Ensuring the protection of species’ critical habitat is key to reversing biodiversity loss in line with Canada’s 2030 Nature Strategy: Halting and Reversing Biodiversity Loss in Canada.
  • Delaying the identification of critical habitat could result in its destruction before it is even identified, jeopardizing the recovery of species at risk.

  Highlights of our recommendations

  • To clearly monitor actions that contribute to conserving critical habitat on federal land and to report progress in a timely manner, Environment and Climate Change Canada and Fisheries and Oceans Canada should ensure that clear links are made with supporting evidence between planned conservation actions found in their action plans and activities taken by the organizations or their partners.
  • To support the timely identification and protection of critical habitat, Environment and Climate Change Canada, Fisheries and Oceans Canada, and Parks Canada should each develop and implement a plan to support the completion of studies to meet their timelines.

Please see the Link opens a PDF file in a new browser windowfull report to read our complete findings, analysis, recommendations and the audited organizations’ responses.

Exhibit highlights

The majority of studies were completed late or still overdue as of 31 August 2024
Donut chart showing the completion status of 120 studies

Source: Based on data from Environment and Climate Change Canada, Fisheries and Oceans Canada, and Parks Canada

Text version

This donut chart shows the number of the 120 studies that were overdue, completed late, not yet due, and completed on time as of 31 August 2024.

Of the 120 studies,

  • 41 studies, or 34%, were overdue
  • 21 studies, or 17%, were completed late
  • 18 studies, or 15%, were not yet due
  • 14 studies, or 12%, were completed on time
  • 26 studies, or 22%, were classified as “other,” which includes studies that were cancelled, studies for species that are extirpated, and studies that can be completed only after other studies
Many studies were completed late or were still overdue as of 31 August 2024
Bar graph showing the number of studies that were completed late or overdue

Source: Based on data from Environment and Climate Change Canada, Fisheries and Oceans Canada, and Parks Canada

Text version

This bar graph shows the number of studies that were completed late or overdue as of 31 August 2024 by the amount of time that they were late by.

There were 6 studies that were completed late or overdue by 1 year or less. Of these, 5 were completed late and 1 was overdue.

There were 6 studies that were completed late or overdue by more than 1 year to less than 3 years. Of these, 2 were completed late and 4 were overdue.

There were 50 studies that were completed late or overdue by 3 or more years. Of these, 14 were completed late and 36 were overdue.

Environment and Climate Change Canada and Fisheries and Oceans Canada did limited monitoring of planned actions from action plans
Bar graph showing the percentage of actions clearly monitored by each organization

Based on data from Environment and Climate Change Canada, Fisheries and Oceans Canada, and Parks Canada

Text version

This bar graph shows the percentage of planned actions from action plans that each organization clearly monitored.

Environment and Climate Change Canada clearly monitored 15% of the planned actions.

Fisheries and Oceans Canada clearly monitored 13% of the planned actions.

Parks Canada clearly monitored 100% of the planned actions.

Collectively, the organizations clearly monitored 57% of the planned actions.

Fisheries and Oceans Canada put in place a mitigation hierarchy to minimize harm
Flow chart showing Fisheries and Oceans Canada’s mitigation hierarchy

Based on the Policy for Applying Measures to Offset Adverse Effects on Fish and Fish Habitat Under the Fisheries Act, Fisheries and Oceans Canada, 2019

Text version

This flow chart shows Fisheries and Oceans Canada’s mitigation hierarchy.

If there is potential harm to critical habitat, the organization uses the following hierarchy of measures in the following order:

  • measures to avoid potential harm
  • measures to mitigate potential harm
  • offsets

Related information

Tabling date

  • 10 June 2025

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