Step 1: ocean

Step 2: Biotic & Abiotic

Step 2)  Biotic: All fish, whales, krill, sponges, seaweed, coral.

            Abiotic: sand, rocks, water, salt, oxygen, temperature, weather, water movement.

Step 3)

Step 3: Carrying capacity

Definition: The maximum number of individuals that a given environment can support without detrimental effects.  

Resources needed for a population to survive are: Plants, water, sunlight, oxygen, phytoplankton, prey (food), soil, (plants are their own producers as well as phytoplankton).

The population changes overtime by: the number of fish being decreased by fishers fishing, the oil that sometimes leeks in the ocean can cause many environments to crash and the fish to die.

oil leaked on the surface of the ocean.

Step 4: Limiting factors and predator/prey relationships

1) definition: an environmental factor that tends to limit population size.

2) A specific predator/prey relationship in my ecosystem is (example) conger eel. The conger eel eats the wrasse. How does this all happen? It all happens by repredouction. one dies then one is born. its a rotation. For the predator/prey relationship one eats one and the other eats another.

3) (picture below)

Predator eating it's prey.

Step 5: Energy Roles

1) definition: Quantitative measure of the production or consumption of energy by any organisms.

Examples of organisms in the ocean: plants (producers),  all fish that take in food (consumers,omnivore)

2) ( picture below.)

this is an omnivore. it takes in anything.

3) Each of the energy roles receive it's energy from the plants, the sunlight that shines down, their predator/prey, and the other fish around them.

4) The role of producers in the energy transfer from the sun is getting all the energy and being built up.

Step 6: Food chains and food webs

1) Food web puts more detail out. The food chain has arrows and tells you who eats what, while the food web does the same but it also expands it more so you see the whole thing. For the ocean the food web is more realistic by pointing out specific animals in the ocean that eat other animals.

2) (picture below)

food web for the ocean.

3) What would happen if one population got removed from this food web?

The population of the animal that ate the animal that got removed wouldn't have anything to eat and their population would die off overtime. The effect it would have on other populations is it would cause there to be less good resources and to damage some of the environments.

Step 7: Trophic levels and energy pyramids

1) (picture below)

energy pyramid describing the trophic levels in the ocean

2) (all above)

3) why is the energy pyramid a pyramid instead of any other shape? because the levels start at the bottom and then they go up to what it ends at.

4) Producers are the highest level because they start out the rotation. The predators are at the lowest because they're being eatin. This represents a rotation of the whole thing and how nothing ends,  it all keeps going.

Step 8: Photosynthesis

1) (picture below)

this explains how photosynthesis works.

2) Formulas: 6CO2+6H2O=C6H12O6+6O2

3) The reactants of photosynthesis are carbon dioxide and water, into sugar and gas. green plants, algae and, some bacteria can perform photosynthesis.

4) Where does photosynthesis take place in a plants cell? It takes place in small things called chloroplast.

5) (picture below)

Step 9: Tropisms

1) Definition: an organism to an external stimulus, as light, especially by growth rather than by movement.

examples of tropisms in my ecosystem: Geotropism, phototropisms, hydrotropisms, chemotropisms, thingmotropisms.

2) (picture below)

3) These tropisms help my ecosystem by the plants and trees growing for oxygen.

Step 10: the role of decomposers

1) Decomposers are vital  by having the waste be able to go somewhere.

What would it be like without decomposers? It would be a rotation. it would be producers then consumers and it would just stop right there.

2) The decomposers i can find in my ecosystem are: worms, and soil.

3) (picture below)

this can describe a type of decomposers

Comment Stream

2 years ago

What might happen if the dolphins died off?

2 years ago

Can you be more specific about the type of air? How much sunlight? Are the sea temperatures warmer or colder in the specific ocean you picked? The ocean is a big place; I recommend that you narrow down to a specific ocean, as the ocean ecosystems can vary greatly in different parts of the world.