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Aquatic Biomes

Aquatic Biomes. Aquatic Biomes. Categorized by: Two Types:. Freshwater Biomes. Streams and Rivers Fed from underground springs or runoff. Streams (creeks) are narrow; carry less water. Rivers are wider and more water . Autotrophs Rivers and streams – few plants or algae

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Aquatic Biomes

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  1. Aquatic Biomes

  2. Aquatic Biomes • Categorized by: • Two Types:

  3. Freshwater Biomes • Streams and Rivers • Fed from underground springs or runoff. • Streams (creeks) are narrow; carry less water. • Rivers are wider and more water. • Autotrophs • Rivers and streams – few plants or algae • Organic matter from terrestrial biomes: • Rapids • Turbulent water – water and air mixed together:

  4. Lake and Ponds • Standing water; some too deep to support emergent vegetation. • Zones • Littoral • Limnetic • Phytoplankton • Profundal • Benthic

  5. Freshwater Wetlands • Aquatic biomes that are submerged or saturated for at least part of each year but shallow enough to support emergent vegetation. • Particular plant communities. • Swamps:

  6. Marshes and Bogs • Marshes: Bogs:

  7. Marine Wetlands • Salt Marshes: Mangrove Swamps

  8. Aquatic Marine Zones • Zones based on light (abiotic factor) • Photic zone • Aphotic Zone • Intertidal zone • Benthic zone

  9. Intertidal Zone • Adaptations • Largest is Bay of Fundy

  10. Abyssal Zone • Aphotic depending on how deep. • Food is made by chemosynthesis. • Deep water vents.

  11. Plankton • Found in the photic zone. • Base of all marine aquatic food chain. • Source of food even for the largest of the marine species – whales, dolphins. • Organisms in the aphotic zone: • Depend on plankton indirectly. • Also eat marine snow.

  12. Marine Snow • As plants and animals near the surface of the ocean die and decay, they fall toward the sea floor. • Also includes fecal matter, sand, soot, and other inorganic dust. • Looks a little bit like white fluffy bits.

  13. Creatures from the Abyss

  14. Intertidal Zones • The part of the shore between the high and low tides. • The largest is the Bay of Fundy. • Water drops 52 feet and there is 620 square miles of ocean floor to walk on. • Much of the floor is muddy but much dries out before the tide returns. • Organism adaptations • Burrow into the sand or suction onto rocks so not to be swept out to sea.

  15. Coral Reefs • Warm, shallow waters beyond the shoreline • Most diverse marine biome. • Corals are tiny animals with an exoskeleton of calcium carbonate. • Live in a nutrient poor area. • Mutualistic relationship with algae that live internally. • Coral reef composed of skeletons of dead corals. • Refuge for marine life; nursery for developing marine life.

  16. Coral Bleaching • Algae inside the corals die and then the corals die. • Reef is then white. • Increase in acidity and water temperatures.

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