water l.
Skip this Video
Loading SlideShow in 5 Seconds..
Water PowerPoint Presentation
Download Presentation

Loading in 2 Seconds...

play fullscreen
1 / 61

Water - PowerPoint PPT Presentation

  • Uploaded on

Water H 2 O, Sea Water and what it means to life in the ocean…. Figure 3.01 Hydrogen Bonds, Between water molecules Are weak, but IMPORTANT! States of water Water occurs as solid, liquid & gas naturally No hydrogen bonds in water vapor

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
  • H2O, Sea Water and what it means to life in the ocean….
figure 3 01
Figure 3.01

Hydrogen Bonds,

Between water molecules

Are weak, but


states of water
States of water
  • Water occurs as solid, liquid & gas naturally
  • No hydrogen bonds in water vapor
  • Some molecules joined by hydrogen bonds in liquid – bonds break & reform
  • All molecules rigidly bonded in solid
heat and water
Heat and Water
  • Adding heat makes molecules vibrate
  • Heat energy is used to cause vibration AND to break hydrogen bonds
heat and water6
Heat and Water
  • Ice melts at relatively high temperatures compared to similar substances
    • (OoC instead of –90oC)
water universal solvent
Water = Universal Solvent
  • Good at dissolving salts (the solutes)
  • Salts exist as separate ions in seawater
  • Salts come from weathering of rock or outgassing from hydrothermal vents
  • Sodium and Chloride account for 85% of the dissolved solids (solutes) in sea water.
  • This makes it various degrees of SALINE: “total amount of salt dissolved in sea water”
  • WHERE does the “salt” come from?
  • And WHAT else is in the water?
  • The total amount of dissolved salts in seawater
  • Measured in parts per thousand (ppt or o/oo)
  • Average salinity of sea water is 35%
density of sea water
Density of (sea)water
  • Density also affects the salinity of water
  • Liquid water gets denser as the temperature decreases
  • BUT ice is LESS dense than liquid water
  • Increases with decreasing temperature
  • Increases with increasing salinity

Temp. of ocean surface: cold = blue, warm = red

Typical Ocean temp. range are 28-86 degrees F

stratified ocean 3 layers
Stratified Ocean (3 Layers)
  • Salinity, Temperature and Density all effect ocean waters giving OCEAN GRADIENTS or stratified layers.
  • Dense, cold water @ bottom
  • Less dense, warmer water @ surface (floating on layer below)
3 layered ocean
3 layered Ocean
  • Surface “mixed” layer: 100-200 m thick
  • Mid “intermediate” layer: 200-1500 m thick contains the main thermocline (transition zone between warm and cold top/bottom layers)
  • Deep “bottom” layer: after 1500 m
light in the ocean
Light in the ocean
  • Transparency depends on what is suspended in the water
  • Different colors penetrate to different depths
  • Water is heavier than air
  • Pressure changes ( a lot!) w/ increased water depth
  • 1 atm. of pressure = sea level (on land) but in ocean each 10 m of depth (33’) you add another atm. of pressure
water salinity light pressure depth
Water, salinity, light, pressure, depth
  • How does this affect marine “life?”
life in the ocean
Life in the Ocean
  • Deal with challenges that are unique to marine environment
  • Must maintain suitable conditions inside the organism’s body
figure 4 13a
Figure 4.13a

More salt in cell,

Water diffuses in

to cell, it will swell

and burst.

figure 4 13c
Figure 4.13c

More salt outside cell,

Water moves out

of cell, it will shrivel.

figure 3 14
Figure 3.14

Groupers swim bladder has expanded, due to pressure, thus stomach has

Been forced through mouth!


Two deep-sea fishes on the deck of a ship after being hauled up from a depth of 800 m. Both fishes were seriously damaged and distorted by the rapid expansion of gases in their swim bladders as they were brought to the surface.


Fnft: A physoclistous swim bladder and associated blood vessels.

  • How does this effect marine organisms?
  • It dictates where they live and metabolize
temperature regulation
Temperature Regulation
  • Most marine animals are ectotherms (“cold-blooded”)
temperature regulation45
Temperature Regulation
  • Most marine animals are ectotherms (“cold-blooded”)
  • Mammals and birds are endotherms
    • Use fat, feathers for insulation
  • Most marine animals are adapted to living at a specific temperature
    • Temperature determines species ranges
new topic
New Topic
  • Tides…
  • Tides
  • Tide Tables
  • Waves
  • Weather (resultant)
  • How do we calculate tides?
  • Tide tables
  • Semidiurnal Tides (in Northeast)
  • Spring vs. Neap tides
  • …effect marine life too…
low tide and offshore
Low Tide…and offshore

Thailand, Tsunami