EE BIOL 109 Lecture 6: Lecture 6 notes
21 Dec 2016
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Air has no ecosystem suspended in air unlike ocean. Seawater density is about density of soft tissue. Free floating animals movement larely determined by currents. Luciferin + o2 + luciferace + mechanical force > light. Not actually paradox cuz abiotic factors are different (salinity, temp, etc) Initial population (no) + birth (b) + immigration (i) - death (d) - emmigration ( e) If closed population, no i or e r = b-d / t. Therefore change in pop over time is rno. If greater than 0 then it is growing. If less than 0 then pop is decreasing. Growth is limited by reaching carrying capacity (k) Growth rate determines how fast population reaches carrying capacity. Growth rate of phytoplankton is affected by light. Light varies through competition cuz phytoplankton want to be near surface for light. R increases with temperature and day length cuz phytosynthetic rate increases. Silicates - diatom skeletons (producer of organic carbon)
