F

1. Faeroe-Shetland Channel, flow through, 652–655

2. Falkland Current, 628, 630

3. Faunal areas (see Zoogeography)

4. Feeding mechanisms, 886–898

5. Filter feeders, 377, 886–892

   1. rate of filtering, 901–902, 930

6. Fishes (see also under specific fishes):

   1. deep-sea fishes:

      1. adaptations, 828–835, 897

      2. food of, 896–897

   2. dispersal of eggs and larvae, 861, 865

   3. feeding habits, 884, 890, 892

   4. migrations, 811

   5. osmotic regulations, 271

   6. reproduction, 325

   7. synopsis, 312

   8. visual depths, 831–833

   9. year classes, 326–328

7. Floating adaptations:

   1. in animals, 818, 821–823

   2. in diatoms, 764–765

   3. in dinoflagellates, 765–766

8. Flocculation of fine sediments, 958

9. Florida Current, 672, 673–675

   1. compared with Kuroshio, 720

10. Fluorine, 180

11. Fog, advection, 118

12. Foraminifera:

    1. in deep-sea sediments, 983–985

    2. reproduction, 319

    3. synopsis, 304–305

13. Foraminiferal number, 985

14. Foraminiferal tests, composition of, 991

15. Forel scale, 88

16. Freezing point of sea water, 65–67

17. Friction:

    1. boundary, 478–481

    2. general terms, 469, 470

    3. simplified terms, 475

18. Frictional forces, 469

    1. in presence of turbulence, 474–476

19. Frictional stresses (see also Wind stress), 68, 69

    1. due to lateral turbulence, 474

       1. Antarctic Circumpolar Current, 621

       2. Equatorial Countercurrent, 634

       3. importance to dynamics of ocean currents, 489

    2. due to vertical turbulence, 471–474

20. Fucus, 286, 291

    1. reproduction, 293

    2. zone, 277