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Tuesday November 27, 2012

Tuesday November 27, 2012. Learning Target : I can Identify and communicate the similarities and differences of freshwater and marine biomes Essential question : What would be necessary for an animal to be able to survive in freshwater and marine biome

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Tuesday November 27, 2012

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  1. Tuesday November 27, 2012 • Learning Target: I can Identify and communicate the similarities and differences of freshwater and marine biomes • Essential question : What would be necessary for an animal to be able to survive in freshwater and marine biome • Warm Up: Answer question 1- 5 on unit 4 study guide • Homework: Study your study guide and vocabu.lary Nov 20, 10 am, 20°C

  2. Vocabulary Journal

  3. Freshwater Water not containing salts

  4. Marine Relating to the ocean and the animals and plants that live there (salty)

  5. Estuary An area of water where freshwater and saltwater combine (river meets an ocean). Estuaries are the nursery of many aquatic animals.

  6. Freshwater ~V.S~ Marine BiomePart 1 Characteristics Abiotic & biotic Factors

  7. Earth: The Water Planet¾ of the Earth is covered in water Freshwater Biome Marine Aquatic Biome Definition: The ocean and the animals and planets that live there. Contains salt The Marine Biome includes: Pacific Ocean Atlantic Ocean Indian Ocean Southern Ocean Arctic Ocean • Definition: Water not containing salt • Covers 1/5 of the Earth’s surface • The freshwater biome includes: • ponds • lakes • streams • rivers

  8. Aquatic Biome Ponds Rivers Streams Fresh Water BIOME Lakes

  9. Ponds and Lakes • Ponds and lakes are bodies of unmoving (still) fresh water. • Many have limited biodiversity(Biodiversity = number of and varietyof organisms found in an area) because they are isolated from one another and from other water sources such as rivers and oceans.

  10. Streams and Rivers • Streams and rivers consist of bodies of moving water. • Rivers begin at an area called headwaters ( colder and more oxygen) and end at an area called the mouth (warmer, slower, sediment).

  11. Freshwater Location Freshwater can be found all over the world and covers 1/5 of the Earth’s surface.

  12. The Marine Biome

  13. Characteristics of the Marine Biome • cover 71% of the Earth’s Surface. • Some places of the ocean floor are deeper than Mt. Everest is high. • 96.5% of the ocean is pure water • 3.5% is dissolved minerals (High Salinity)

  14. Biotic & Abiotic

  15. Abiotic Factors (non-living) the speed of the water flow Climate (average weather) The fresh water biome contains little salt. (low salinity) Usually less than 1%. and amount of sunlight. Biotic Factors (living) Freshwater biomes contain about 12 % of the worlds animals 40% of the worlds fish species. Many types of plants Abiotic and BioticFactors of the Freshwater Biome

  16. Freshwater Biome • Most Important abioticfactor is sunlight, which is necessary for photosynthesis. • Water absorbs sunlight, so there is only enough sunlight for photosynthesis near the surface or in the shallow water. • Algae are the main Producers of the fresh water biome. Energy Transformation:radiant chemical (radiant energy/SUNLIGHT is converted to chemical energy/SUGAR as plants make their food in the process of photosynthesis)

  17. Components of the Marine Biome • Abiotic(nonliving) • Water • Sunlight/darkness • Minerals (from runoff) • Dissolved gases • Biotic(living) • Producers • Consumers • Decomposers

  18. Estuaries: Characteristics Abiotic Factors Saltwater and freshwater mix Large supply of nutrients (deposited by the river) Biotic Factors Large diversity of organisms • Where rivers meet the ocean. (freshwater and marine meet) • Between 1 and 3.5% Salinity. • Organisms have to be adapted to to live in a changing environment. • water level and amount of salt (salinity) fluctuates (changes)

  19. Independent PracticeCreate a Venn diagram of the characteristics, abiotic & biotic factors of freshwater an marine biomes Freshwater Marine ~ covers 1/ 5 of Earth ~Low salinity (less than 1% salt) ~ lakes (unmoving and limited biodiversity) ~ Ponds(unmoving and limited biodiversity) ~ Rivers (moving – more biodiversity) ~Streams (moving – more biodiversity) ~ Covers 71% of the Earth’s Surface ~deep ~3.5% dissolved minerals (mostly salt) ~ variety of biotic and abiotic factors depending on depth ~Estuary ~Where river meets Ocean ~Between 1 and 3.5% Salinity ~Organisms have to be able to live in a changing environment

  20. Freshwater ~V.S~ Marine BiomePart 2 Human Influences

  21. Human Influence • 2 types of pollution that affect the aquatic biome • Chemical pollution- the introduction of toxic chemicals into the water. (oil spills, pesticides, bio-hazardous materials, illegal dumping etc.) • Thermal pollution -A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature, the change in temperature decreases oxygen supply, and affects ecosystem composition. • threatened by pollution • farm runoff, • industrial discharges, • recreational boating, • and fast-food packaging.

  22. Independent PracticeComplete the flow map3 things that cause pollution3 effects of pollution on aquatic biome Pollution

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