Warning This Web page has been archived on the Web.

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards, as per the Policy on Communications and Federal Identity.

Skip booklet index and go to page content

Recovery Strategy for the Northern and Southern Resident Killer Whale

List of tables

Table 1:  Persistent organic pollutants that may pose a risk to resident killer whales

Table 2: Signal structure, frequency range and source levels of anthropogenic noise. Modified from Table 2-1b in NRC (2003) and Table 6.8 in Richardson et al. (1995)

Table 3: Schedule of studies to identify additional areas of critical habitat and its threats

Table 4: Current and recommended measures for the protection of critical habitat

Table 5: Examples of performance measures that may be used to assess the effectiveness of the broad strategies used to achieve the objectives of the Proposed Recovery Strategy for the Northern and Southern Resident Killer Whales in Canada

List of figures

Figure 1: The coast of British Columbia showing the general ranges of northern and southern resident killer whales

Figure 2: Population size and trends for southern resident killer whales from 1974-2003. Source: Unpublished data from the Centre for Whale Research

Figure 3: Population size and trends for northern resident killer whales from 1974 to 2003.  Values reflect the minimum, maximum and estimated number of animals alive as of July 1 in each year.  Source: Unpublished data, Cetacean Research Program-DFO, Nanaimo

Figure 4: Critical habitat for southern resident killer whales.  The hatched area in US waters shows the approximate areas designated as southern resident critical habitat under the US Endangered Species Act (ESA).

Figure 5: The known critical habitat for northern resident killer whales in summer and fall in British Columbia.  Other core areas have not yet been identified