A Review of Science and Conservation Management for the Cumberland Sound Beluga Population

Аннотация

For many centuries, belugas, or white whales (Delphinapterus leucas), have been a major source of subsistence and cultural identity for the Inuit living along the shores of Cumberland Sound, southeastern Baffin Island. During the late 1800s and first half of the twentieth century, the whales were also heavily exploited commercially for their oil and skins. By the late 1960s and early 1970s it had become clear that the beluga population was greatly reduced from its historical abundance, and efforts began to limit the harvest and monitor the population. The purposes of this paper are to (i) provide a synthesis of developments in Cumberland Sound beluga science and harvest management since 1980 and (ii) describe and discuss efforts to improve the conservation status of the beluga population. Despite large investments in research since the transition to co-management under the Nunavut Agreement, much uncertainty and disagreement remains. Best scientific estimates of current beluga numbers are in the range of 1000 – 1500, with no clear evidence of an increasing or decreasing trend. Officially reported annual landings of harvested whales for the Baffin Island community of Pangnirtung in recent years have ranged between 15 (1993) and 52 (2006), with an average of around 40 whales. Ongoing known or potential threats identified by hunters and scientists include overharvest, ecosystem (including climate-driven) change, interactions with commercial fisheries, predation by killer whales, and stress due to vessel noise. Addressing these issues will require continued research and improved relations between Inuit and the government. Fresh approaches are needed. Newly available analytical and procedural tools may help to overcome longstanding issues that are deeply embedded in cultural and philosophical differences.