Deepwater sculpin (Myoxocephalus thompsonii) some populations: COSEWIC assessment and status report 2017

Deepwater Sculpin

Deepwater Sculpin
Photo: © J. R. Tomelleri.

Great Lakes-Upper St. Lawrence populations - Special concern
Southern Hudson Bay-James Bay populations - Data deficient
Saskatchewan-Nelson River populations - Not at risk
Waterton Lake population - Special concern
Western Hudson Bay populations - Not at risk
Western Arctic populations - Not at risk

2017

Table of contents

List of figures

  • Figure 1. Slimy Sculpin (top), Spoonhead Sculpin (middle), and Deepwater Sculpin (bottom).
  • Figure 2. Distribution of the Deepwater Sculpin (Myoxocephalus thompsonii) in Canada in relation to the Canadian National Freshwater Biogeographic Zones.
  • Figure 3. Distribution of glacial lakes between 1000 and 18000 years ago.
  • Figure 4. Extent of occurrence for Deepwater Sculpin in the Great Lakes – Upper St. Lawrence DU.
  • Figure 5. Extent of occurrence for Deepwater Sculpin in the Southern Hudson Bay – James Bay DU.
  • Figure 6. Extent of occurrence for Deepwater Sculpin in the Saskatchewan – Nelson River DU.
  • Figure 7. Extent of occurrence for Deepwater Sculpin in Waterton Lake DU.
  • Figure 8. Extent of occurrence for Deepwater Sculpin in the Western Hudson Bay DU.
  • Figure 9. Extent of occurrence for Deepwater Sculpin in the Western Arctic DU.
  • Figure 10. Food web position of Deepwater Sculpin and various co-occurring biota in Alexie Lake, NWT, based on δ15N and δ13C isotope ratios (error bars indicate standard error).

List of tables

  • Table 1. Lakes with extant populations of Deepwater Sculpin in the six designatable units (DUs).

List of appendices

  • Appendix 1. IUCN threats classification and assessment calculator for the Deepwater Sculpin – Great Lakes-Upper St. Lawrence populations
  • Appendix 2. IUCN threats classification and assessment calculator for the Deepwater Sculpin – Southern Hudson Bay-James Bay populations
  • Appendix 3. IUCN threats classification and assessment calculator for the Deepwater Sculpin – Saskatchewan-Nelson River populations
  • Appendix 4. IUCN threats classification and assessment calculator for the Deepwater Sculpin – Waterton Lake population
  • Appendix 5. IUCN threats classification and assessment calculator for the Deepwater Sculpin – Western Hudson Bay populations
  • Appendix 6. IUCN threats classification and assessment calculator for the Deepwater Sculpin – Western Arctic populations

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