LITTORAL (INTERTIDAL) 5.1. sheltered rocks (800x503) 5.2. stones & boulders (800x521) 5.3. skjerra and sheltered rocks (800x571) 5.4. gravel and sand (800x565) 5.5. muddy glacial lagoons (800x521) 5.6. tidal flats (800x518) 5.7. river mouths (800x508)

SUBTIDAL 5.8. rocky (800x529) 5.9. stony (800x524) 5.10. gravel and sand ( ) 5.11. shell beds ( ) 5.12. litothamnion (800x518) 5.13. kelp forests ( ) 5.14. muddy, low sedimentation ( ) 5.15. muddy, high sedimentation ( )