Table 4. Pygmy blue whale risk matrix Likelihood of Consequences occurrence No long term Minor Moderate Major Catastrophic (relevant to effect species) Almost certain Commercial fisheries or Seismic surveys* aquaculture equipment Shipping noise* Industrial noise* Likely Infrastructure/ coastal development Possible Marine debris Vessel collisions Climate variability Aircraft noise and change Whale watching Acute Chemical Discharge (oil or condensate spill) Unlikely Chronic chemical Whaling ∆ pollution (toxins) Rare or Overharvesting of prey ∆ unknown * Given the behavioural impacts of noise on Pygmy blue whales are largely unknown, a precautionary approach has been taken regarding assignation of possible consequences. threat occurs outside Australia. ∆ Table 5. Antarctic blue whale risk matrix
Table 4. Pygmy blue whale risk matrix Likelihood of occurrence (relevant to species) Consequences No long term effect Minor Moderate Major Catastrophic Almost certain Commercial fisheries or aquaculture equipment Shipping noise* Industrial noise* Seismic surveys* Likely Infrastructure/ coastal development Possible Marine debris Aircraft noise Whale watching Acute Chemical Discharge (oil or condensate spill) Vessel collisions Climate variability and change Unlikely Chronic chemical pollution (toxins) Whaling ∆ Rare or unknown Overharvesting of prey ∆ * Given the behavioural impacts of noise on Pygmy blue whales are largely unknown, a precautionary approach has been taken regarding assignation of possible consequences. ∆ threat occurs outside Australia. Table 5. Antarctic blue whale risk matrix