Chapter 6: Ecosystems

Chapter 6: Ecosystems

Chapter 6: Ecosystems Section 3: Aquatic Ecosystems

A. Freshwater ecosystems include flowing and standing water, low or no salt

1. Rivers and streams flowing water a. Most

nutrients washed into the water

from land b. The faster the flow, the

greater the oxygen content

2. Lakes and ponds very little flow a. Sunlight warms and lights

pond bottom, supporting plant and animal life

b. Deeper lakes support life along shallow shoreline or surface

3. Water pollution a problem caused by fertilizer-filled runoff and sewage

4. Wetlands regions wet all or most of the

year a. Lie between

solid land and water b. Very fertile

ecosystems B. Salt water ecosystems 95% of Earths water

contains high concentration of salt, or high salinity

1. Open oceans divided into lighted and dark life zones

a. lighted upper 200m and home of plankton

b. dark below 200m where animals feed on material that floats down or prey on each other

2. Coral reefs diverse and fragile

ecosystems formed from coral shells of

calcium carbonate

3. Seashores along coastlines a. Intertidal zone covered with

water at high tide and exposed to air

at low tide b. Drastic changes in temperature, moisture,

salinity, and wave action 4. Estuaries where a river

meets an ocean; called bays, lagoons, harbors,

inlets, sounds Elkhorn Slough, CA

a. Rich in nutrients b. Changing mixture of salt water and freshwater

Healthy estuary Chesapeake Bay (largest estuary in the US)

Recently Viewed Presentations

  • Mon Groupe Musical Préféré

    Mon Groupe Musical Préféré

    Ils s'appellent Karen Fairchild, Kimberly Schlapman, Jimi Westbrook, and Phillip Sweet. C'est un groupe mixte-deux femmes et deux hommes. Quelle sorte de musique joue-t-il ? (de la musique de pop, du rock, du rap, du R'n'B, de la musique folk,...
  • The Nature of Gases - Department of Chemistry

    The Nature of Gases - Department of Chemistry

    5.50 L at STP 5.50 L O2 x 1 mole x 4 moles Fe x 55.9 g Fe = 18.3 g 22.4 L 3 moles O2 1 mole Fe LecturePLUS Timberlake Chapter 6 Gases 6.7 Volume and Moles (Avogadro's Law)...
  • 3 - The Curriculum Corner

    3 - The Curriculum Corner

    ©www.thecurriculumcorner.com. Substitute Binder Checklist. Am I Ready? Class List. Seating Chart. Morning Procedures. Where to go for help. Behavior Plan. Bathroom Procedures
  • Evolving CCMs to Deliver on the GF Strategy

    Evolving CCMs to Deliver on the GF Strategy

    CCMs in Challenging Contexts. Burundi, DRC, Haiti, Niger. The Evolution Pilot involved a . collective and consultative design and approach. Data analysis and consultations with over 260 partners, including 84 CCMs, Board and Committees, and internal GF Secretariat teams resulted...
  • LGPS 2014 Changes for Employers

    LGPS 2014 Changes for Employers

    Emma Shand Duncan Kohn Viv Ray ... Mike Germon are technical manager and Jane Aplin our systems team manager are currently looking at Employers Self Service which will be rolled out as soon as possible and will hopefully make things...
  • The Continuing Reality of Information Security in Healthcare

    The Continuing Reality of Information Security in Healthcare

    In terms of technical capabilities, the healthcare industry is behind other industries in protecting its infrastructure and electronic protected health information (ePHI) - as commonly seen in the use of outdated clinical technology, insecure network-enabled medical devices, and an overall...
  • A Walk Through WAI Resources

    A Walk Through WAI Resources

    Fireman grips firehose with huge output of letters of regulations and guidelines NIMC, DAISY, WCAG, ATAG. 508, etc . Accessible vs Inclusive. ... Chart a path. Executive sponsor. Choose/define standard. Adopt explicit policy. Measure and set baselines. Build and integrate...
  • video slide - LTCC Online

    video slide - LTCC Online

    CHAPTER 16 Plants, Fungi, and the Move onto Land