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Aquatic Ecosystems

QuestionAnswer
Erosion affects aquatic ecosystems by... moving solid material such as soil, mud, & rock. It clogs streams and fill reservoirs. It reduces soil fertility and water quality.
Dirt/Sediment affects aquatic ecosystems by... blocking light, killing aquatic plants, and clogging gills
Organic pollution affects aquatic ecosystems by... organic matter/pollution uses up a lot of oxygen
Non-point source pollution pollution from a broad area or a number of sources
Point source pollution pollution from one source
Water quality affects aquatic ecosystems by... the water quality affects the health of aquatic organisms. Things that affect water quality are cloudiness, temperature, & chemicals. The water quality can cause things to over populate or die.
Inorganic pollution affects aquatic ecosystems by... inorganic pollution such as nitrates, phosphates, & fertilizers make plants grow at the surface, blocking sunlight for other plant growth
Aquatic Ecosystems in Missouri three kinds of aquatic ecosystems are streams, lakes, & wetlands. Rivers and streams contain flowing water. Wetlands have shallow water at some part of the year. The two main wetlands are marshes & swamps.
Extinct Species a species that has no living members
Endangered Species a type of plant or animal whose numbers are so small that it is at risk of extinction
How does competition affect ecosystems? since there is competition, every species has their own niche. It includes how it gets food, the habitat it needs, and the role it performs in the community.
Why do we have a carrying capacity in aquatic ecosystems? because if a population exceeds the carrying capacity individuals may starve, get sick, or be forced to move to a place that can support them.
Properties of Water -solid, liquid, gas -solid form is less dense than liquid -molecules attract one another using surface tension -molecules can cling to other things -transparent to light -high boiling point (212F), low freezing point (32F)
Threats to aquatic ecosystems Habitat destruction - cutting down trees, overgrown algae, water pollution, littering, invasive species, organic pollution, over populations, human destruction, erosion
How invasive species affects the ecosystems they are introduced to use up resources meant for native species (food, shelter, habitat, space, etc.) could bring disease
How do adaptations help organisms in their environment. protects organisms from predators helps them hunt prey, allows for species to reproduce continuation of species.
Where water goes when it runs off a street. into storm drains, and out to aquatic ecosystems (lakes, rivers, streams, creeks, ponds, etc.)
How temperature of water affects amount of oxygen. higher the temperature lower amount of oxygen, lower temperature, higher amount of oxygen
Biodiversity the number and variety of living things in an environment
Species a group of individuals sharing some common characteristics or qualities and a particular kind of creature
Sediment silt, sand, rocks, and other matter carried and deposited by moving water
Watershed all the land from which water drains into a specific body of water
Conservation careful use
How much freshwater is on earth? 3%
Created by: hbaldwin849