OCEAN       #ecosys5

Biotic-                                                                          Abiotic-

Clown Fish                                                                   sand

Coral                                                                           water

Hammerhead shark                                                      shells

Carrying Capacity

Carrying capacity refers to the balance between the availability of habitat components and the numbers of animals the habitat can support.

Examples: food, water, shelter, and living space.

In my habitat there are lots of different kinds of fish; also, sharks and other animals like to eat those different kinds of fish for food. If the sharks and all the other animals ate all the fish (which would least likely happen) then there would be no more fish. That would result in the rest of the animals dying and the species would become extinct.

Limiting Factors

Limiting factors are things that prevent a population from growing any larger.

Examples: sunlight, temperature and the nutrients available.

A predator/prey relationship for example, is a shark and a seal. If a lot of sharks came too eat the seals, then there wouldn`t be enough for all of them. If there was 3 sharks eating 5 seals, and 4 more sharks came, then there would not be enough seals too support the sharks.

Energy Roles

Producers:  Algae, Plankton, Fungi

Consumers: Sea slug, Crab, Squid

Decomposers: Shrimp, Crabs, sea worms

Herbivore: Sea Urchins, Manatees

Carnivore: Sea lion,  Whales, Dolphins

Omnivore: Lobsters, Whales and Sea turtles

Scavenger: Sharks, Lobsters (does sometimes catch fresh food),  zooplankton

~scavengers get energy from dead animals

~decomposers also get energy from dead animals

~omnivores gets its energy from other animals and plants

~herbivores gets its energy from plants

~carnivores get their energy from other animals/meat

Producers play a very big part in energy transfer and an ecosystem because they take the energy from the sun to help them grow so primary consumers can eat them.

Food Chains and Food Webs

Food Webs are more realistic than Food chains because food webs show all the different in a certain ecosystem, also showing the relationships.

If I removed the primary consumer, then the producers would over populate, the secondary consumers would die off, soon the tertiary consumers would also die off. All the population would be gone except the producers which would over populate.

Tropic Levels and Energy Pyramid

An energy pyramid is shaped like a pyramid because there are over 4 levels but the main levels are producers, primary consumers, secondary consumers and tertiary consumers. So, if the food pyramid was shaped like any other shape then the levels would mostly likely not be in the right order.

Producers have the largest boxes of  food pyramids because there are a lot more producers than primary, secondary and tertiary consumers. Also, top predators have the smallest boxes of food pyramids because their is less of the top predators than produces. The sizes of the boxes, like I already said above, represent that there is more producers than top predators.



The chemical equation is C6H12O6

C stands for carbon dioxide

H stands for hydrogen

O stands for glucose

What is needed for photosynthesis: sunlight, carbon dioxide, water and glucose

What is produced from photosynthesis: oxygen

Photosynthesis takes place in the plants chloroplast, stomata and roots


Tropism is the turning or bending movement of an organism toward or away from an external stimulus

Examples: seaweed and kelp

Seaweed and kelp help my ecosystem survive because they are producers, which starts the food pyramid.

The Role Of Decomposers

Decomposers are vital to my ecosystem because they break down/ decompose dead animals and lots more. If there were no decomposers in my ecosystem, then there would be dead animals floating around the ocean. The dead animals would have no way of breaking down. Then, there would be no nutrients for seaweed, kelp and other producers to grow in the ocean.

Decomposers in the ocean: Crabs, shrimp and sea worms


Adaptations are very important because organisms wouldn't be able to survive without adaptations. What I mean by this is that organisms would not be able to get use to their surroundings.Like for example, the
weather. If organisms couldn't ADAPT do the weather they were in, then they would die.

Adaptations help organisms survive because adaptations let organisms get use to or adapt to the weather, ecosystem and adjust to a different food/prey if ecosystem possibly doesn't have usual food/prey.

Plant adaptations: amounts of sunlight, water source, amount of soil/nutrients and weather

Animal adaptations: weather, possibly new food/prey, water source, camouflage

                                     Plant adaptation video below

                                            Animal adaptation picture below

If I took a frog (like in the picture above) and put the frog in Antarctica, the frog would very slowly adapt to the new climate, food/prey and ecosystem. Also, the frog would not be able to be camouflaged like in the picture above.

Natural Selection

Natural selection is where organisms adapt to their environment in order to survive. Also in order to produce more offspring. Natural selection is also important for organisms in an ecosystem because natural selection lets the organisms get use to their surroundings. Natural selection is also important to an ecosystem because if it did not exist, organisms would very slowly adapt or die.

Natural selection changed Sharks by surviving extremely difficult and scary events. Also, it's genetic processes get slower in natural selection.

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