Abstract
No description available.
Supplementary Materials
Timecodes
- 00:05
- Scales/marine ecology/controls/sampling
- 01:54
- Global marine primary production
- 02:42
- Sea ice biology/ecology is an ancient and nobel science
- 04:27
- ...Antarctic sea ice
- 04:40
- Ice is important for obvious...
- 04:51
- ...and it is not just a few
- 05:07
- ...and they are there because there is lots to eat
- 05:50
- Supply and Demand
- 08:31
- Space...rather an obvious one
- 10:08
- But for the algae, bacteria and their grazers
- 12:39
- Plants in the oceans
- 13:33
- Many phytoplankton 10s, 100s and even 1000s
- 14:37
- But not all...
- 15:35
- The Bioeochemical Cycle
- 17:31
- Photosynthesis
- 18:16
- Photosynthesis(cont.)
- 19:54
- Photosynthesis(cont.)
- 21:27
- Light reaction- Quality and Quantity
- 25:25
- Light reaction- Quality and Quantity
- 27:38
- Measurement from Oxygen Changes
- 29:03
- additional requirement for nitroget and phosphorous
- 30:29
- Nitrogen a key limitation
- 31:53
- Cycles in the ocean are complex
- 32:24
- But not just nitrogen...
- 32:40
- Even trace metals important...
- 33:23
- Seasonal cycle
- 34:24
- P vs E key to it all
- 34:36
- What initiates the spring bloom
- 34:39
- What initiates a phyloplankton bloom
- 36:41
- Caution...
- 38:18
- P vs E key to it all
- 38:26
- Critical Depth
- 40:42
- Critical Depth Theory
- 41:37
- Critical depth (cont.)
- 43:20
- Sub-surface Chlorophyll layers
- 44:31
- Not just one algae but a succession
- 45:35
- ...and so what is this to do with sea ice
- 46:27
- Frozen seawater is a labyrinth of brine filled channels and pores
- 46:43
- And within the labyrinth
- 47:32
- But for the algae, bacteria and their grazers the scales have changed
- 49:38
- how relevant is it for us...