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Aquatic Abiotic Factors SC.912.L.17.2 Explain the general distribution of life in aquatic systems as a function of chemistry, geography, light, depth, salinity, light, and temperature.
Aquatic Abiotic Factors
SC.912.L.17.2 Explain the general distribution of life in
aquatic systems as a function of chemistry, geography,
light, depth, salinity, light, and temperature.
1. Students will explain the different types of organisms that
exist within aquatic ecosystems due to chemistry,
geography, light, depth, salinity, and/or temperature.
Chemical Factors that Affect Aquatic Ecosystem:
pH
Oxygen levels
Carbon dioxide
Nitrogen
Phosphorus
Salinity
1. Students will explain the different types of organisms that
exist within aquatic ecosystems due to chemistry,
geography, light, depth, salinity, and/or temperature.
The closer you are to the surface of the water the more
LIGHT and NUTRIENTS that are available.
Therefore, many more organisms can be found in the
top layers of bodies of water than the bottom.
Carbon & Water Cycle
SC.912.E.17.1 Analyze the movement of matter and energy
through the different biogeochemical cycles, including
water and carbon.
1. Students will analyze the movement of matter
through different geochemical cycles.
Water Cycle: process
that moves water
through an ecosystem
through:
• Evaporation
• Condensation
• Precipitation
• Transpiration
(evaporation from a
plant’s leaves)
1. Students will analyze the movement of matter
through different geochemical cycles.
Carbon Cycle: process that moves
carbon through an ecosystem through:
• Photosynthesis
• Cellular Respiration
• Fossil fuels
• Ocean uptake
**Too much carbon in the atmosphere
results in the greenhouse effect (an
increase in climatic temperatures
across the globe)
Changes in an Ecosystem
SC.912.L.17.4 Describe changes in an ecosystem resulting
from seasonal variations, climate change, and succession.
1. Students will describe the potential changes to an
ecosystem resulting from seasonal changes, climate
changes, and/or succession.
Factors that Affect Climate Change
Distance from ocean
Ocean currents
Direction of prevailing winds
Altitude/mountains
Proximity to the equator
El Nino phenomenon
Human population growth
Pollution
Industry
1. Students will describe the potential changes to an
ecosystem resulting from seasonal changes, climate
changes, and/or succession.
Changes in an Ecosystem:
Succession: orderly, natural changes, and species replacements that
take place in communities of an ecosystem over time
Primary Succession: colonization of barren land by pioneer
organisms (soil is developed and not already present)
Secondary Succession: sequence of changes that take place after
a community is disrupted by natural disasters or human actions (soil
must already be present)
1. Students will describe the potential changes to an
ecosystem resulting from seasonal changes, climate
changes, and/or succession.
Primary
Succession
1. Students will describe the potential changes to an
ecosystem resulting from seasonal changes, climate
changes, and/or succession.
