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Exploring Aquatic Biomes and Their Unique Ecosystems

Delve into the fascinating world of aquatic biomes and discover the diverse ecosystems found in oceans, lakes, rivers, and more. Learn about marine pelagic zones, coral reefs, deep sea life, and shallow benthos environments. Understand the productivity, diversity, and key factors shaping these vital ecosystems.

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Exploring Aquatic Biomes and Their Unique Ecosystems

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  1. Mon. Tues. Wed. Thurs. Fri. Week of Sept. 15 Week of Sept. 22 Indoor lab – bring calculator – download Lemna lab Week of Sept. 29 Oct. 3 Exam 1 Wet outdoor lab – wear closed-toed shoes Week of Oct. 7 Indoor lab – bring calculator

  2. How are the boreal and tundra areas in the • Arctic different from the boreal/tundra areas in • Alpine areas? • Seasonality • B. Daily temperature change • C. UV radiation • D. All of the above

  3. Aquatic systems - defined by physical factors such as depth, temperature, water flow

  4. From Miller 1993

  5. thermocline Oceans and lakes are usually thermally stratified

  6. Aquatic systems Marine Pelagic zone (open ocean) Deep sea Shallow benthos Coral reefs Freshwater Lakes Streams/rivers

  7. Shallow benthos Pelagic zone Deep sea

  8. Biome : Pelagic zone of ocean Climate: Depends on location – generally warm and well-lit Vegetation:Phytoplankton Animals:Zooplankton, fish Net Productivity:Low Diversity: Low

  9. Diatoms – photosynthetic protists

  10. Zooplankton – common herbivores and carnivores of the ocean

  11. Biome : Deep sea Climate: Extremely uniform – dark and cold Very high pressure Vegetation:None Animals:Unusual things Net Productivity:Low Diversity: Low – but higher than pelagic zone

  12. If no photosynthesis and no vegetation, what supports the organisms that live in the deep sea? What do they eat if they can’t eat plants?

  13. Biome : Shallow benthos Climate: Depends on area – relatively warm and well-lit Vegetation:Kelp forests and other seaweeds Animals:Urchins, starfish, sea cucumbers Net Productivity:Moderate to high Diversity: Moderate

  14. Kelp forests

  15. Biome : Coral reefs Climate: warm and well-lit Vegetation:Algae Animals:Coral, tropical fish Net Productivity:High Diversity: High – 25% of all marine species in 0.17% of ocean area

  16. Live Coral Dead coral

  17. Aquatic systems Marine Pelagic zone (open ocean) Deep sea Shallow benthos Coral reefs Freshwater Lakes Streams/rivers

  18. Biome : Lakes Climate: Highly variable Vegetation:Phytoplankton, rooted plants on edges Animals:Zooplankton, fish Productivity:Low to high Diversity: Low to moderate

  19. Shallow benthos Pelagic zone

  20. Biome : Rivers/streams Climate: Highly variable – less vertical variability than lakes Vegetation:Algae, rooted plants in large rivers Animals:Insect larvae, fish Net Productivity:Low to high Diversity: Low to moderate

  21. More horizontal than vertical variability in streams

  22. Outline The biome concept Survey of the biomes Variability in Connecticut

  23. Different Land Cover Types in Connecticut - Terrestrial Oak Forest Red Maple Forest Hemlock Beech Forest - Freshwater Lake and reservoir Streams and rivers Freshwater wetlands and bogs - Coastal Salt Marsh Beach

  24. Microclimate – climatic variation on a scale of a few kilometers, meters, or centimeters

  25. Coniferous forest Deciduous forest Wetlands, Water Residential,commercial Lawn and turf

  26. Which of the following biomes have water deficits during the growing season? a. tundra b. desert c. woodland/shrubland (chaparral) d. both b and c

  27. Only one of the following lists correctly ranks four terrestrial biomes from most to least productive. Which is it? • a. tropical rain forest, temperate seasonal forest, savanna, tundra • b. tropical rain forest, temperate seasonal forest, tundra, savanna • c. temperate seasonal forest, tropical rain forest, tundra, savanna • d. temperate seasonal forest, tropical rain forest, savanna, tundra • e. temperate seasonal forest, savanna, tropical rain forest, tundra

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