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Food Web Of The Indian Ocean

By the Stars of Science

Avni T

on 9 June 2015

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Transcript of Food Web Of The Indian Ocean

The Eel is a tertiary consumer. If it leaves the food web, then the population of one of the species, the clown anemone-fish will increase a bit. The clown anemone fish will have only one less predator to deal with since the eel isn't their only predator. There is a balance in population in an ecosystem. So if the Eels do leave, the clown anemone-fishes will slightly increase as a result.

Website: http://en.wikipedia.org/wiki/Eel
Food Web of the Indian Ocean






By: Achira, Avni, Semini, Tanvir
Thank you for watching and listening!!
If the sea otter left the ecosystem, what would happen to the food web is since the sea otter only eats the seaweed, the sea weed would have one less predator, so that population would slightly increase.
Then, since the whale shark is a predator of the sea otter, it would lose one choice of food to eat, so that population wouldn't completely disappear, but wouldn't be as healthy as having an extra food choice, either. Another predator of the sea otter is the killer whale, but the killer whale population has a lot of choices of food/prey, so that population wouldn't disappear, but would lose a choice of food only.
In conclusion, if the sea otter left this food chain, only one population would increase, and the population of the predators would not decrease much.

Website: a-z-animals.com/animals/sea-otter/

If the anemone fish left the ecosystem, and wasn't part of the food web anymore, the algae population would increase, because it would lose a predator, and would have only one predator left. The plankton population would also increase because it would lose a predator, and have only one predator left.
The squid population would start eating their own species, because the only other food/prey of the squid is the anemone fish, and if it disappears, the squids will have to eat it's own species (which would make the giant squids somehow decrease). The whale shark is a predator of the anemone fish, but since it has many other prey choices, it will not harm the population if it loses one choice. The eels also are predators of the anemone fish, and it is also the only thing eels eat in the food web, so if the anemone fish disappeared, they would would also die and disappear out of the food web, looking for something else to eat. The saltwater crocodile population would lose one source of food, but wouldn't do much damage since they have two other sources of food. The bottle nose dolphins only eat the anemone fish, so they would die and some would move out of the ecosystem for other food web. Also, the crab only eats the anemone fish, so the crab population would die, and some have to go somewhere else to eat. The sea turtle population would decrease not disappear, because it loses a food source.

Website: a-z-animals.com/animals/clown-fish/

The Hermit Crab is a tertiary consumer. If it leaves the food web, one species will increase slightly . This species is the Clown Anemone-fish. This species will increase because one of their predators, the Crab will no longer hunt for them as their prey. The species of fish will have one less predator to deal with. The ecosystem balances, so this is bound to happen.

Website: http://www.wikihow.com/Care-for-Hermit-Crabs
Scientific name:
The Saltwater Crocodile is a tertiary consumer. If it leaves the food web, then the population of three species will increase. Those three species are the Dugong, Sea Turtle, and Clown Anemone-fish. These three species will increase in population because once their predator, the Saltwater Crocodile is gone, they will have one less predator to deal with (these animals have many predators in the food web). Once one animal such as a predator leaves the food chain, the population of its preys will increase to balance the ecosystem.

Website: http://animals.nationalgeographic.com/animals/reptiles/saltwater-crocodile/
Scientific name:
Crocodylus Porosus
Scientific Name:
The Killer Whale is a tertiary consumer. If it leaves the food web, then the population of five species will increase since this carnivore has five main food sources in the Indian Ocean. The population of the Giant Squids, Whale Sharks, Sea Otters, Sea Turtles, and Bottlenose Dolphins will increase. These populations are affected since they are the prey. If the Killer Whale is gone, they will have one less predator to deal with. Their predator, the Killer Whale will be gone and will not hunt and kill these animals as their prey any longer. There is a balance in ecosystems. In this case the ecosystem is the Indian Ocean. If the Killer Whales leave their population will decrease. As a result the population of five other species will increase.

Website: http://www.livescience.com/27431-orcas-killer-whales.html

Scientific name:
Orcinus Orca
Scientific name:
enhydra lutris

The scientific name:

The sea grass is a producer. So if the sea grass population decreases in the food web then there will be less energy food left for the Dugong. So that means that the dugong will only have one food choice, and would be unhealthier. Since only the dugong eats the seaweed in this food web, it will only affect that.

Website: ocean.si.edu/seagrass-and-seagrass-beds
The scientific name:
Pediastrum boryanum
Algae is a producer. If the population of algae decreases then there is an affect to 2 different animals. One animal would be the dugong. The dugong would have only one other food source, which is the sea grass, so it wouldn't be as healthy as having toe choices of food. The other animal which it would affect would certainly be the Clown Anemone Fish. So the clown anemone fish would have a energy loss as well, because it will have only one food choice left. Which makes it harder for the clown anemone fish to survive.

Website: allaboutalgae.com/what-are-algae/
The Scientific name:
Seaweed is a producer. So if the seaweed population decreases then two animals can not have energy sources. That is because producers start off the food web. So one animal it will be affected is the sea otter. So if the population of the seaweed decreases then the population of the sea otter will start to disappear because then the sea otter have no other food to eat. The second animal it would affect are sea turtle's. So the sea turtles will have less food to eat, and only one choice. So they will start to decreases a little bit because of hunger issues.

Website: en.wikipedia.org/wiki/Seaweed
Scientific name:
The scientific name:

The plankton is a producer. Two animals are affected by the decreasing of the plankton. The plankton provides them food. But if the plankton starts to decrease in the food web, then the animals that are needing this food source will slowly start to decrease one by one. The first animal it will affect is Whale Shark. They will start losing a lot of energy, as it lost one of it's food sources. The second animal it will affect is clown anemone fish. So this animal will lose a food source, as decrease, not disappear.

Website: www.enchantedlearning.com/subjects/.../plankton/Planktonprintout.shtml
Scientific Name:
Scientific name:
Scientific Name:
Rhincondon Typus
Scientific name:
Scientific Name:
Dugong Dugon
If the dugong population left the ecosystem and left the food web, the sea grass population would completely grow, and would increase a lot, because it has no other predator besides the dugong. The algae would increase, too, as it would lose a predator. The whale shark population would lose one choice of food/prey, and they wouldn't completely disappear, but wouldn't be as healthy as having many choices of food, either. The saltwater crocodile would also lose one choice of food/prey.
This saltwater crocodile population has two other choices of food, so they wouldn't completely disappear from the food web, but wouldn't be as healthy as having many other choices of food, either.

Website; a-z-animals.com/animals/dugong/
If the Giant Squid left the ecosystem, what would happen to the ecosystem, is that the population of the Clown anemone fish that it eats would slightly increase because one of its predators would stop eating it, even though it has a lot of other predators.

The other effect it would have on the food web is that since the Giant squid is the prey of the Killer whale the killer whale population would slightly decrease, because one of its food sources would disappear, even though the killer whale has other food sources too.

Website: ocean.si.edu/giant-squid
If the Whale shark was to leave this ecosystem, then the population of the Dugong, Sea otter, plankton,and Clown anemone fish population would increase, because one of its predators would not be eating them.
The other effect it would have on the ecosystem is that since it is eaten by the Killer whale. The Killer whale population would slightly decrease, because one its food sources would disappear.
If the Sea turtle left this ecosystem then the seaweed population would increase, because now only one other organism would be eating it, and the clown anemone fish would increase a bit, because it would lose one predator, but still has many more.
The other effect it would have on this ecosystem is that the Killer whale and Saltwater crocodile would slightly decrease, because now it would have one less food source.
If the Bottlenose dolphin left this ecosystem then the clown anemone fish population would slightly increase, because then it would have one less predator.
the other effect it would have is that since the Bottle-nosed dolphin is eaten by the killer whale, the Killer whale population would slightly decrease, because it would have one less prey to eat.
About the Indian Ocean
Indian Ocean
is the third largest ocean in the world. It covers 20% of earth's surface- that is a lot since the
is really big! The boundaries of the Indian Ocean is Asia on the north, Africa on the west, Australia on the east and by South America on the south. Since it is at the north of the
, it is affected by a monsoon climate. Therefore, the Indian Ocean is the
ocean in the world. That means that mostly
animals would feel comfortable here as their habitat. The
are generally gentler in the southern hemisphere, but the
storms near Maritus can be severe. Its mid-ocean ridges are Carlsberg Ridge, Southwest Indian Ridge, Southeast Indian Ridge, and Central Indian Ridge. Most importantly, the Indian Ocean provides major sea routes for trade, connecting the Middle East, Africa, East Asia, Europe, and the Americas.

Reference: http://en.wikipedia.org/wiki/Indian_Ocean

Interesting Facts about Sea Grass
Interesting Facts about Algae
Interesting Facts About Sea Weed
Interesting Facts about Plankton
Interesting facts on the Dugong
Interesting Facts on the Sea Otter
Interesting Facts on the Clown Anemone Fish
Interesting facts on the Giant Squid
Interesting facts on the Whale Shark
Interesting Facts on the Sea Turtle
Interesting Facts on the Bottlenose Dolphin
Interesting Facts on the Killer Whale
Interesting Facts on the Eel
Interesting Facts on the Saltwater Crocodile
Interesting facts on the Hermit Crab
-Sea grass is a grass-like plant that lives in or close to the sea.
-They are the only flowering plants that can live underwater.
-They help keep the water fresh and clear.
Reference: en.wikipedia.org/wiki/Seagrass
-Algae grows on the sea bed of an ocean in shallow waters.
-Algae can produce photosynthesis and is part of a very large and diverse group of eukaryotic organisms.
Reference: simple.wikipedia.org/wiki/Algae
-Seaweed is the similar name for countless species of marine plants and algae that grow in the ocean as well as in rivers, lakes, and other water bodies.
-The study of seaweed is known as Phycology. They are one of the most nutritionally dense plants on the planet.
-Certain types of seaweed are edible (can be eaten by humans)
reference: en.wikipedia.org/wiki/Seaweed
-Plankton is small and microscopic organisms that drift or float in the sea or fresh water.
-Many animals are adapted to feed on plankton, especially by filtering the water.
-The word plankton comes from the Greek word ''planktos'' which means ''drifting''.
reference: en.wikipedia.org/wiki/Plankton
-The Dudong is an aquatic mammal found on the coasts of the Indian Ocean from eastern Africa to northern Australia.
-It is one of the four living species of the order Sirenia, which includes three species of manatees.
-It is a herbivore that is called the ''sea cow'' for its habit of grazing on sea grass meadows.
reference: en.wikipedia.org/wiki/Dugong
-The sea otter is mainly hunted for its dense fur. -They live in shallow coastal waters just off the northern Pacific.
-A sea otter floats on its back with a stone balanced on the abdomen, in order to crack open bivalve mollusks.
reference: en.wikipedia.org/wiki/Sea_otter
-Clown Anemone fish is a small species of fish that are found around tropical coral reefs.
-They are a type of fish that live in salt water habitats.
-The Clown fish is probably the most popular saltwater fish species today and one of the reasons that many people want to get into the saltwater hobby.
reference: a-z-animals.com/animals/clown-fish/
-The Giant Squid is a deep-sea squid that is the largest known invertebrate, reaching a length of 59 feet (18 m) or more.
-Recent studies show that the maximum size for females is 43 feet (13 m).
-Just like they have ''giant'' in their name, they are like giants.
-Early knowledge of the Giant Squid came from studying the remains washed up on shores.
reference: en.wikipedia.org/wiki/Giant_squid
-The Whale Shark is a very large tropical shark that typically swims close to the surface, where it feeds chiefly on plankton.
-It is a slow-moving filter feeding shark and the largest known extant fish species.
-The largest confirmed Whale Shark had a length of 12.65 m and a weight of approximately 21.5 metric tons!
reference: en.wikipedia.org/wiki/Whale_shark
-Sea turtles are one of the Earth's most ancient creatures.
-There are seven species that can be found today that have been around for 110 million years!
-These turtles are sometimes called marine turtles.
-Sea turtles are found in warm and temperate seas throughout the world, such as the Indian Ocean.
reference: en.wikipedia.org/wiki/Sea_turtle
-Bottlenose Dolphins are stout-bodied dolphins with a distinct short beak, found in tropical and temperate coastal waters like the Indian Ocean.
-Bottlenose Dolphins send messages to each other in different ways like squeaking, whistling and using body languages.
-These dolphins also have a sharp sense of hearing. Scientists believe that the sounds travel through the dolphin's lower jaw to its inner ear and then are transmitted to the brain for analysis.
reference: en.wikipedia.org/wiki/Bottlenose_dolphin
-The Killer Whales are also referred to as Orca or Orca Whales, and less commonly as the Blackfish Whale and the Grampus Whale.
-Killer Whales belong to the Oceanic Dolphin Family.
-They are one of the largest dolphins and one of the world's most powerful predators.
-These whales have teeth that can be four inches (10 cm) long- those are some big teeth for a big animal!
reference: en.wikipedia.org/wiki/Killer_whale
-An eel is a snakelike fish with a slender elongated body and poorly developed fins, causing its slipperiness.
-Eels may look like a snake but are actually fish.
-These fishes do have gills but they spend 99.999% of their lives in water, only coming on land when forced to go around dams.
-The colour of eels depend on their age and habitat, for example, older eels are usually dark brown or greenish, with yellowish-white bellies.
-A Saltwater Croccodile is also known as saltie, or estuarine.
-It is the largest of all living reptiles, as well as the largest terrestrial and riparian predator in the world.
-The Saltwater Crocodile is a very large and dangerous crocodile found in estuaries and coastal waters from southwestern India to northern Australia.
reference: en.wikipedia.org/wiki/Saltwater_crocodile
-A Hermit Crab has a gentle asymmetrical abdomen that lives in a castoff mollusk shell for protection.
-In several kinds of crabs, the shell becomes covered with sponges, sea anemones, or bryozoans.
-As a pet, Hermit Crabs like climbing, digging, and switching their shells.
reference: en.wikipedia.org/wiki/Hermit_crab
Syringodium isoetifolium
enteromorpha spp.

(which is a diatom, which is a type of phytoplankton, which is a type of plankton)
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