11-Microbiology_Water_Mar12

17 lakes in temperate climates anaerobic zones may

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Unformatted text preview: (N and P are limi<ng) •  Primary produc<on is low, availability of organic maPer is low. •  Growth of aerobic chemoheterotrophs is limited by nutrient supply; oxygen concentra<on remains high. Rate of oxygen dissolu<on is higher than the consump<on rate. •  Lake remains aerobic even at depth and organic maPer is degraded completely. •  Oxygen saturated. •  Clear water (deep penetra<on of light) 15 Eutrophic lake (nutrient rich) •  Primary produc<on is high (algal bloom), availability of organic maPer is high. •  •  Rapid growth of chemoheterotrophs, rapid deple<on of dissolved oxygen. •  Anaerobic zones are created. •  Poor light penetra<on Low oxygen concentra<on 16 Brock Biology of Microorganisms, 13th Edi<on. Eutrophic...
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