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Update of Time-series observation with mooring system at K2 Makio Honda JAMSTEC. No Data. ~ 30m. Epipelagic layer (Euphotic layer). ~ 35m. ~ 150m. Mesopelagic layer (Twilight zone). RAS Preservative: HgCl 2 500ml X 48. BLOOMS 412, 443, 490, 555 nm

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  1. Update of Time-series observation with mooring system at K2 Makio Honda JAMSTEC No Data

  2. ~ 30m Epipelagic layer (Euphotic layer) ~ 35m ~ 150m Mesopelagic layer (Twilight zone) RAS Preservative: HgCl2 500ml X 48 BLOOMS 412, 443, 490, 555 nm Anti-biofouling: cupper shutter 19:00 - 7:00 (UTC) on time ~ 550m ~ 1000m Bathypelagic layer (Deep layer) ST 21 cups (150m) 13 cups (550, 1000, 4810m) Preservative: formalin ~ 4810m ~ 5200m

  3. VERTIGO

  4. Estimation of Chl-a(int) with Ed(555)/Ed(443)

  5. VERTIGO PP = Chl(Int) x PAR x ψ

  6. VERTIGO

  7. Si / N

  8. VERTIGO Ave. 96 mg m-2 day-1 ATE 20 ± 7% Ave. 24 mg m-2 day-1 ATE 1 ± 3% Ave. 36 mg m-2 day-1 ATE 8 ± 2% Ave. 145 mg m-2 day-1 ATE 68 ± 1%

  9. Swimmer or Carbon flux ? Eucalanus bungii Sagitta elegans

  10. Deployment # 1 (MST: 24 Jul. - 6 Aug. , NBST 30 Jul. - 4 Aug.) (MST/NBST = 0.05) (MST/NBST = 0.05) Deployment # 2 (MST: 7 Aug. - 20 Aug. , NBST 10 Aug. - 14 Aug.) (MST/NBST = 0.49) (MST/NBST = 0.15)

  11. VERTIGO

  12. VERTIGO

  13. Sinking velocity and density Stokes’ law SV = 2 / 9 x r2 x g x (Dp - Ds) / v

  14. Summary Quick export of biogenic particulate materials from surface mixed layer High export production and ratio Vertical transport without significant lateral transport Sinking velocity increased with depth. Opal is most effective ballast.

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