Part 10: Marine ecosystem - Structure and function (nutrient cycle)

This video is linked with part 9 videos on the marine ecosystems, its structure and function. In this video, we will be learning about the nutrient cycle, its types. Different gaseous and sedimentary nutrient cycles: carbon cycle, nitrogen cycle, sulfur cycle, etc. We discussed various concepts such as biological carbon pumps, microbial loops, viral shunt, microbial carbon pumps, Recalcitrant dissolved ogranic matters, role of virus in the precipitation, role of DMS in regulating open ocean food web, offsetting greenhouse warming etc. Type of nutrient cycle - 00:10 Oceanic carbon cycle - 01:00 Carbon pumps - 11:20 Solubility carbon pump - 11:30 Carbonate carbon pump - 14:00 Biological carbon pump - 15:15 Microbial loop and viral shunt - 21:30 Microbial carbon pump - 27:00 labile, semi-labile, and recalcitrant dissolved organic matters - 28:30 Oceanic nitrogen cycle - 34:30 Sulfur cycle - 39:00 Oceanic sulfur cycle - 43:00 Smell of the shore - 48:00 DMS rings the bird's dinner bell - 48:00 DMS help offset greenhouse warming - 53:00 Role of viruses in global climate change - 57:00