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Unique Properties of Water

Published on Dec 11, 2015

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1.

Unique Properties of Water

  • Specific heat of liquid water = 1.0 cal/g C
  • Buoyancy provides physical support for organisms
  • Great solvent for dissolving nutrients
  • Dilution for metabolic wastes
  • Denest in liquid phase at 4 C
Photo by Ian Sane
2.

Unique Properties of Water

  • Expands when freezes (less dense in solid phase)
  • Bipolar molecule
Photo by Ian Sane
3.

Aquatic Life Zones

Planktonic - "Free Floating"
Photo by NOAA Photo Library
4.

Phytoplankton

Photo by pali_nalu
5.

Zooplankton

Photo by PROYECTO AGUA** /** WATER PROJECT
6.

Nectonic

"Swimming"
Photo by the_tahoe_guy
7.

Benthic

"Bottom Dwellers"
Benthic - includes invertebrates, decomposers, scavengers
Photo by neptunecanada
8.

Limiting Factors in Aquatic Life Zones

  • Temperature
  • Light Avaliability
  • Water Clarity (turbidity)
  • Dissolved Oxygen
  • Salt Concentration
Photo by jalbertbowdenii
9.

Limiting Factors in Aquatic Life Zones

10.

Structure of Lotic (riverine) system

Photo by Len Radin
11.

Headwaters

"Source Zone" - High DO, high velocity, cold water 
Source Zone - Headwaters (steep slopes, high dissolved oxygen, high velocity, cold water) good trout habitat.
12.

Transition Zone

13.

Untitled Slide

Sonja Anderson