
Structure of the ocean food chain
- Producer. The first food layer of the ocean food chain is made up of autotrophic organisms. ...
- Primary consumer. Animals that are directly dependent on producers for food are the primary consumers. ...
- Secondary consumer. Some animals present in an ecosystem that takes primary consumers as food are called secondary consumers.
- Tertiary consumer. ...
- Decomposer. ...
What is at the top of the ocean food chain?
Top of the Food Chain: 5 Deadly Marine Predators
- Killer Whales. When you think of top ocean predators, you probably think of sharks. ...
- Great White Shark. They can smell a single drop of blood floating in 10 billion drops of water. ...
- Polar Bears. Although polar bears are land mammals, they spend much of their life at sea. ...
- Leopard Seals. Leopard seals are quite cute—until they open their mouths. ...
- Sea Lions. ...
What is the first link in the ocean food chain?
In a food chain, the different links represent different organisms. Each link of the chain usually begins with what is called a producer. A producer is a living creature that needs the sun to help it make its own food. Examples of producers in the ocean are algae, seaweed and plankton.
What is the beginning of an ocean food chain?
- Xylophages eat wood. Termites and bark beetles are xylophages.
- Coprophages eat animal feces. Dung beetles and flies are coprophages.
- Geophages eat earth, such as clay or soil. Parrots and cockatoos are geophages.
- Palynivores eat pollen. ...
- Lepidophages are fish that eat the scales (but not the body) of other fish. ...
- Mucophages eat mucus. ...
What eats what in an ocean food chain?
Product details
- Publisher : Picture Window Books (August 1, 2012)
- Language : English
- Paperback : 24 pages
- ISBN-10 : 1404876960
- ISBN-13 : 978-1404876965
- Reading age : 7 - 9 years
- Lexile measure : 560L
- Grade level : 2 - 4
- Item Weight : 2.4 ounces
- Dimensions : 9 x 0.13 x 9 inches

How does the food chain work in the ocean?
The foundation of the sea's food chain is largely invisible. Countless billions of one-celled organisms, called phytoplankton, saturate sunlit upper-ocean waters worldwide. These tiny plants and bacteria capture the sun's energy and, through photosynthesis, convert nutrients and carbon dioxide into organic compounds.
What is top of the food chain in the ocean?
Killer Whales But the true ruler of the sea is the killer whale. Killer whales are apex predators, which means they have no natural predators. They hunt in packs, much like wolves, which are also at the top of their food chain.
What is ocean food chain for kids?
An ocean food chain shows how energy is passed from one living thing to another in the ocean. Producers make their own food (plankton, algae, seaweed), and consumers eat the producers and/or other consumers to get the energy they need (crabs, shrimp, dolphins, sharks and fish).
What animal is king of the ocean?
Orcas hunt marine mammals such as sea lions, seals, walruses and large whales. They even hunt the great white sharks. They are in fact apex predators, i.e. they have no natural predators of their own, except humans of course. Hence they are “kings of the ocean” and sit at the top of the food chain.
What eats a shark in a food chain?
The documentaries often illustrate that sharks are apex predators (at the apex/top of the food chain), whereas really, these sharks are also opportunistic scavengers [2,3]. They are even preyed upon by the orca [4].
What is food chain example?
Each living thing is a part of multiple food chains – for example, grass is a part of the food chain: grass → grasshopper → frog → snake → eagle, and also of the food chain: grass → deer → tiger. All of the interconnected and overlapping food chains in a habitat make up a food web.
What is a food chain for grade 2?
A food chain shows how each living thing gets its food. Some animals eat plants and some animals eat other animals. For example, a simple food chain links the trees & shrubs, the giraffes (that eat trees & shrubs), and the lions (that eat the giraffes). Each link in this chain is food for the next link.
What is a food chain short answer?
A food chain describes how energy and nutrients move through an ecosystem. At the basic level there are plants that produce the energy, then it moves up to higher-level organisms like herbivores. After that when carnivores eat the herbivores, energy is transferred from one to the other.
What is the food chain of the ocean?
The foundation of the sea's food chain is largely invisible. Countless billions of one-celled organisms, called phytoplankton, saturate sunlit upper-ocean waters worldwide. These tiny plants and bacteria capture the sun's energy and, through photosynthesis, convert nutrients and carbon dioxide into organic compounds. On the coast, seaweed and seagrasses do the same thing.
What is the next level of the marine food chain?
The next level of the marine food chain is made up of animals that feast on the sea's abundant plant life. On the ocean's surface waters, microscopic animals—zooplankton, which include jellyfish and the larval stages of some fish, barnacles, and mollusks—drift across the sea, grazing opportunistically. Larger herbivores include surgeonfish, parrotfish, green turtles, and manatees.
What are seaweed and seagrass?
Together, these humble plants play a large role: They are the primary producers of the organic carbon that all animals in the ocean food web need to survive. They also produce more than half of the oxygen that we breathe on Earth.
What is the energy that fuels the deep ocean ecosystem?
At their roots, these unique ecosystems are fuelled by chemical energy , which enters the ocean from sources like seafloor hydrothermal vents.
How many marine species are there?
Some 300,000 marine species are known to science—about 15 percent of all the species identified on the planet. But the sea is so vast that a million or more as yet unknown species may live in its waters. Most of these aquatic species are tied together through the food web.
Do herbivores eat ocean vegetation?
Despite their differences in size, herbivores share a voracious appetite for ocean vegetation. Many of them also share the same fate—which is to become food for the carnivorous animals of the food chain's top two levels.
What are the three parts of the ocean food chain?
located in the ocean. These living organisms are divided into three parts known as plankton, nekton, and benthos. These living organisms survive on each other and thus controls the ocean food chain.
Why is the ocean food chain important?
Ocean food chains are an important source of food. This food chain is much larger than the food chain of all ecosystems, as millions of aquatic species are found here. All these organisms survive by eating each other. So this food chain is a very important source of food.
What is the animal that floats on the surface of the ocean?
The zooplankton is an aquatic animal that floats on the surface of the ocean. They feed on various phytoplankton, unicellular plants, algae, etc. floating on the sea surface (2) & (4). 3. Secondary consumer. Some animals present in an ecosystem that takes primary consumers as food are called secondary consumers.
What is the largest ecosystem in the world?
The ocean ecosystem is the largest of all the ecosystems in the world and is located in the largest surface area of the world. The total volume of all oceans is about 15 times that of land. There are a total of five oceans on this planet. About 70% of the earth’s surface is covered by oceans and these oceans are extremely large and deep. The temperature and salinity of ocean water vary based on depth. The biodiversity of these oceans is very high, as it is home to millions of aquatic plants and animals. These species make up the ocean food chain. The ocean food chain is discussed below (2) & (3).
What is the main producer of the ocean food chain?
The phytoplankton is the main producer of the ocean food chain. These phytoplankton floats on the ocean surface. They usually range in diameter from 0.06 mm to 3 mm. Sometimes the diameter of the phytoplankton is more than 3 mm.
How do phytoplankton make food?
They make food in the process of photosynthesis with the help of sunlight. They convert solar energy into chemical energy while making food with the help of sunlight. This phytoplankton after using the generated food energy for their own work, transfer the remaining energy to the next level (2) & (5). 2.
What are the decomposers of the ocean?
Decomposer. The primary decomposer in the ocean food chain is bacteria. Fungi, ocean worms, echinoderms, mollusks, echinoderms, etc. are the other decomposers of the ocean ecosystem. All these fungi and bacteria cause the decay of the producers and consumers of the ocean ecosystem (1).
What is the food chain in the ocean?
A food chain is a representation of the relationship between producers and consumers, preys and predators within an ecosystem. Every food chain will have at its lowest level primary producers that are responsible and capable ...
What percentage of food energy is derived from phytoplankton?
Ninety five percent of all food energy at this trophic level is derived from phytoplanktons. As is evident from the diagram, the next level comprises zooplanktons like shrimp, jellyfish, mollusks, etc., that survive on phytoplanktons. In some cases, larger zooplanktons may feed on the smaller ones. This interchangeability ...
What is a food web?
A food web that showcases different interlinked chains is a more accurate representation of the flow of food energy from one organism to the other. If you refer to a diagram, you would see that organisms, that are a part of a food web, are grouped on different trophic levels depending on where they stand in the producer-consumer relationship.
How do marine plants use energy?
These are single-celled marine plants that live in the surface layers of the ocean, and use the energy from the sun to produce carbohydrates. They do this by converting carbon dioxide and other nutrients using solar energy. Ninety five percent of all food energy at this trophic level is derived from phytoplanktons.
Why are food chains not accurate?
Let's Work Together! Most food chains are not accurate representations of the transfer of food or energy that takes place in nature, because they are overtly simplistic. No consumer feeds on just one species.
Do zooplankton feed on smaller zooplankton?
In some cases, larger zooplanktons may feed on the smaller ones. This interchangeability of consumer and producer is why a food chain, reflecting transfer of energy, may not be necessarily accurate. The next trophic level comprises marine animals like smaller fish and crustaceans like sardines, herrings, crabs, and lobsters.
What is the food chain in the ocean?
Let's review! An ocean food chain shows how energy is passed from one living thing to another in the ocean. Producers make their own food (plankton, algae, seaweed), and consumers eat the producers and/or other consumers to get the energy they need (crabs, shrimp, dolphins, sharks and fish). There are three different types of consumers: primary consumers, secondary consumers and tertiary consumers.
How does the ocean food chain work?
An ocean food chain shows how energy is passed from one organism, living thing, to another in the ocean. You can think of a food chain like an actual chain. A chain has different sections or parts called links. In a food chain, the different links represent different organisms.
What is it called when a dolphin eats fish?
As the fish swims off, a dolphin eats the fish. The dolphin is the third to eat in this scenario, so it is called a tertiary consumer. So, as you eat your seafood dinner, know that your family has now become part of this food chain. Let's review!
What is the first thing a shrimp eats?
A small shrimp swims up to the algae and starts to eat the plankton. Since the shrimp is the first to eat, it is called a primary consumer. As the shrimp eats the plankton, some of the energy stored in the plankton is lost. Just as the shrimp starts to swim off, it is eaten by a fish.
What is the second consumer of shrimp?
Just as the shrimp starts to swim off, it is eaten by a fish. Since the fish is the second consumer, it is called a secondary consumer. As the fish eats the shrimp, it receives only some of the energy stored in the shrimp. If the fish had eaten the plankton, he would have received more energy than he would from the shrimp. As the fish swims off, a dolphin eats the fish. The dolphin is the third to eat in this scenario, so it is called a tertiary consumer. So, as you eat your seafood dinner, know that your family has now become part of this food chain.
What are some examples of producers in the ocean?
A producer is a living creature that needs the sun to help it make its own food. Examples of producers in the ocean are algae, seaweed and plankton.
What is the link in the chain?
Link in the Chain. You sit down to eat a meal with your family, when you look down at your plate and notice that you will be eating seafood. Your family has prepared fried shrimp, fish, and rice with seaweed. Since you do not like seafood, you push away the plate and ask for chicken nuggets as your family continues to eat.
What is the food chain?
A food chain shows how energy passes from one living thing to another. The great white shark is at the top of the ocean food chain. Read on to learn more. 1.The Sun Light from the sun gives plants energy. 2. Seaweed This plant soaks up sunlight. 3. Fish Some fish eat plants to live. The plants give the fish energy to move.
What does a seal eat?
4. SealA seal is a carnivore. It eats the fish.
What is a volcano?
A volcano is a mountain. It has a hole at the top. Some volcanoes have hot melted rock inside. Learn more about volcanoes below. Volcanoes can erupt. Ash and lava shoot out of a volcano. Lava is hot. It flows…
How do food chains work?
Food chains on land start with plants and move up level by level, showing which creatures eat which. In the oceans, also known as the marine environment, food chains also work in much the same way. Let’s look at one food chain that could be found in the sea.
What are the living things that can't make their own food called?
Primary (level 1) Consumers – Consumers are living things that can’t make their own food and so they eat other living things. In the ocean, many types of tiny, floating animals like crustaceans (sometimes called krill), eat phytoplankton. These creatures are known as zooplankton, since they also float around on the water.
What are primary producers?
But in the oceans, primary producers are a mix of different living things that float at or near the water’s surface.
What is a secondary consumer?
Secondary (level 2) Consumers – At the next link in our food chain, we find animals that eat other animals (and don’t eat producers). In our example, small fish that filter tiny zooplankton out of the water to eat are secondary consumers.
What is the food chain?
The food chain describes who eats whom in the wild. Every living thing—from one-celled algae to giant blue whale s—needs food to survive. Each food chain is a possible pathway that energy and nutrient s can follow through the ecosystem. For example, grass produces its own food from sunlight. A rabbit eats the grass.
What is the term for all related food chains in an ecosystem?
all related food chains in an ecosystem. Also called a food cycle.
What do producers do?
Producers, also known as autotroph s, make their own food. They make up the first level of every food chain. Autotrophs are usually plant s or one-celled organisms. Nearly all autotrophs use a process called photosynthesis to create “food” (a nutrient called glucose) from sunlight, carbon dioxide, and water.
What do detritivores eat?
Detritivore s and decomposers are the final part of food chains. Detritivores are organisms that eat nonliving plant and animal remains. For example, scavenger s such as vultures eat dead animals.
How do decomposers complete the cycle of life?
Decomposers complete the cycle of life, returning nutrients to the soil or oceans for use by autotrophs. This starts a whole new food chain. Food Chains. Different habitats and ecosystems provide many possible food chains that make up a food web.
What is the process by which some microbes turn carbon dioxide and water into carbohydrates?
chemosynthesis. Noun. process by which some microbes turn carbon dioxide and water into carbohydrates using energy obtained from inorganic chemical reactions. consumer. Noun. organism on the food chain that depends on autotrophs (producers) or other consumers for food, nutrition, and energy. decay. Verb.
What is the food chain of a blue whale?
In one marine food chain, single-celled organisms called phytoplankton provide food for tiny shrimp called krill. Krill provide the main food source for the blue whale, an animal on the third trophic level. In a grassland ecosystem, a grasshopper might eat grass, a producer. The grasshopper might get eaten by a rat, ...
