. O O O OO oo a ooo 'ID 1000 4 6 8 i i i 111 o o o a oo o D â¡â¡ oo >0005 001 HOUR 12 H II 13 10 14 09 15 08 16 07 17 06 IS 05 19 04 20- 03 21 02 22 01 23 0 6 8 i i ml PHYTOPLANKTON IN MILLIONS OF CELLS 01 10 10 100 1000 2 4 6 8 I I i I lllll 2 4 6 8 _J I i I I nil 2 4-6 8 I I i I lIII 2 4 6 8 I I I I I Mil 2 4 6 6 I I I I I i M o&o X OOO Don DO Ox °oo on x RH°° rDDoo v_ ao_ \ * xN ° 88\o do o 6*s SB o o oo oo oo \ x 00 x \ ° *oo 6 x s OO x oo\ x DO O OOO \ O xOx o -6a â¡ a o o o o .B no ao no no DO no o oo oo O DO DO x D DD oo on a D a 00 D SUNRISE AND SUNSET on on OOD on * * ODo
. O O O OO oo a ooo 'ID 1000 4 6 8 i i i 111 o o o a oo o D â¡â¡ oo >0005 001 HOUR 12 H II 13 10 14 09 15 08 16 07 17 06 IS 05 19 04 20- 03 21 02 22 01 23 0 6 8 i i ml PHYTOPLANKTON IN MILLIONS OF CELLS 01 10 10 100 1000 2 4 6 8 I I i I lllll 2 4 6 8 _J I i I I nil 2 4-6 8 I I i I lIII 2 4 6 8 I I I I I Mil 2 4 6 6 I I I I I i M o&o X OOO Don DO Ox °oo on x RH°° rDDoo v_ ao_ \ * xN ° 88\o do o 6*s SB o o oo oo oo \ x 00 x \ ° *oo 6 x s OO x oo\ x DO O OOO \ O xOx o -6a â¡ a o o o o .B no ao no no DO no o oo oo O DO DO x D DD oo on a D a 00 D SUNRISE AND SUNSET on on OOD on * * ODo 0 88B oo OOO R OO DO oonx xon do OOOD _Ar^-. o nc >! X 3a 8BD -OTJâ OOD OOD OO OO OO â o- n o o oo DO D D D DO OO "OCT OOD ODD n Fig. 170. For explanation see text. 43
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