The energetics of blue whale lunge feeding are modelled

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1. Story
2. Work combining kinematic data from digital tags with unsteady hydrodynamic models produces an energy budget for individual lunges and foraging dives. Dives of about 3 to 15 minutes carry as many as six lunges; the energy returned by a mouthful of dense krill is very large relative to the cost, but the efficiency depends steeply on krill density. The result explains why the migration exists at all: a blue whale cannot make a living in ordinary water.
3. Knowledge
4. Blue Whale (Balaenoptera musculus)
5. Seasonal Krill Aggregation
6. Rorqual Lunge Feeding
7. The energetics of blue whale lunge feeding are modelled
8. Connections
9. Rorqual Lunge Feeding
10. Blue Whale (Balaenoptera musculus)
11. Seasonal Krill Aggregation
12. Blue Whale (Balaenoptera musculus)
13. Seasonal Krill Aggregation
14. The energetics of blue whale lunge feeding are modelled
15. Antarctic Krill (Euphausia superba)
16. Rorqual Lunge Feeding
17. Antarctic Blue Whale (B. m. intermedia)
18. Pygmy Blue Whale (B. m. brevicauda)
19. Northern Indian Ocean Blue Whale (putative B. m. indica)
20. Fin Whale (Balaenoptera physalus)
21. Whale-Mediated Iron Recycling
22. Vessel Collision with Large Whales
23. The longest blue whale on record is measured at South Georgia
24. The heaviest blue whale on record is weighed
25. The IWC protects blue whales from commercial hunting
26. The commercial whaling moratorium takes effect
27. Blue whale song frequencies are observed falling worldwide
28. The energetics of blue whale lunge feeding are modelled
29. Baleen whale consumption is re-measured, and the krill paradox sharpens
30. Antarctic Summer Feeding Migration
31. Point Conception
32. California Current System
33. Southern Ocean
34. Rorqual Lunge Feeding
35. Whale-Mediated Iron Recycling
36. The energetics of blue whale lunge feeding are modelled
37. Evidence
38. Kinematic tag data combined with unsteady hydrodynamic models gives an energy budget for blue whale lunges and foraging dives: dives lasted between about 3.1 and 15.2 minutes with up to six lunges each, and foraging efficiency exceeds that of other marine mammals by close to an order of magnitude, but only where lunges target extremely high krill densities. V55 verification basis: retrieved in search summary of the paper and of institutional reporting on it; the per-mouthful energy figure and the 90:1 return ratio come from that secondary reporting rather than from the paper.