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Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
Aquatic biome
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Aquatic biome

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  • 1. Aquatic Biome • it makes up the largest part of the biosphere • There are two main types of Aquatic Biomes: 1.Freshwater 2. Marine • High biodiversity
  • 2. • The amount of dissolved materials present • The depth of water • The availability and quality of light • The nature of the bottom substrate • Water temperature and circulating System
  • 3. Three Main Ecological Groups 1. Plankton – organisms incapable of swimming from current system to another current system (floating) Two Major Categories 1. Phytoplankton- plant plankton 2. Zooplankton- animal plankton
  • 4. Three Main Ecological Groups • 2. Nekton - stronger swimming species that are capable of swimming between current system Examples: fishes, squids and whales
  • 5. Three Main Ecological groups 3. Benthos - attached organisms or resting on bottom mostly filter feeders Examples: seaweeds, barnacles and lobsters
  • 6. FRESHWATER ECOSYSTEM • It makes up only 0.01% of the worlds water and approximately 0.08% of earth’s surface • Have a salt concentration of less than 1%, • Covers Ponds ,lakes streams and rivers
  • 7. Two distinct categories of Freshwater Ecosystem 1. Lotic System - Running water - It includes streams and rivers 2. Lentic System - Calm water - includes Lakes and ponds
  • 8. Streams and Rivers (LOTIC SYSTEM) • These are bodies of flowing water moving in one direction • has higher oxygen levels
  • 9. 3 DIFFERENT ZONES IN LOTIC SYSTEM 1. Littoral zone - shoreline, shallow water region with light penetrating up to bottom with rooted plants
  • 10. 2. Limnetic - open water zone to depth of effective light penetration
  • 11. 3. Profundal - bottom and deep water area beyond effective light penetration ( absent in ponds)
  • 12. In lotic system …. • Critical water velocity is 50 cm/sec • Lotic food chains are detritus based
  • 13. PONDS AND LAKES • These regions range in size from just a few square meters to thousands of square kilometers. • Ponds and lakes may have limited species diversity since they are often isolated from one another
  • 14. Classification of Lake 1. Eutrophic lakes - well nourished lake - shallow - very poor visibility
  • 15. 2. Oligotrophic Lakes - a poorly nourished lake - Often deep w/ deep banks
  • 16. 3. Mesotrophic Lake - lake with moderate supply -these are lakes that fall between ntwo extreme of nutrient enrichment
  • 17. WETLANDS • Wetlands are areas of standing water that support aquatic plants • Many species of amphibians, reptiles, birds (such as ducks and waders), and furbearers can be found in the wetlands
  • 18. MARINE ECOSYSTEM • The largest of all the ecosystems • Oceans are very large bodies of water that dominate the Earth's surface. • Ocean contains the richest diversity of species even though it contains fewer species than there are on land.
  • 19. 4 ZONES 1. Intertidal zone - is where the ocean meets the land — sometimes it is submerged and at other times exposed, as waves and tides come in and out
  • 20. 2. Pelagic zone -includes those waters further from the land, basically the open ocean
  • 21. 3. Benthic zone - is the area below the pelagic zone, but does not include the very deepest parts of the ocean
  • 22. 4.Abyssal zone -deep ocean -The water in this region is very cold (around 3° C), highly pressured, high in oxygen content, but low in nutritional content
  • 23. CORAL REEFS • Sometimes called “Tropical Rainforest of the Ocean” • They can be found as barriers along continents • Highly diverse in species
  • 24. 3 TYPES OF CORAL REEFS 1. FRINGING REEFS -coral reefs that are close to the shore, separated by low waters
  • 25. 2. BARRIER REEFS -Reefs that are at least 10 kilometers away from land are called barrier reefs.
  • 26. 3. ATOLL REEFS -A circular coral island that is far away from land is called an atoll - Atolls form when coral develops on a volcanic island that has sunk below the wateR
  • 27. ESTUARINES • Are areas where freshwater streams or rivers merge with the Ocean • Microflora like algae, and macroflora, such as seaweeds, marsh grasses, and mangrove trees (only in the tropics), can be found here.
  • 28. • Estuaries support a diverse fauna, including a variety of worms, oysters, crabs, and waterfowl.
  • 29. THANK YOU

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