Top Facts About AQUATIC Ecosystems 🐟 🐋 Educational Lessons for Kids
Summary
TLDRThis educational video dives into two major aquatic ecosystems: the marine and freshwater biomes. It explains the differences between ecosystems and biomes, discussing marine zones such as the sunlight, twilight, midnight, and abyssal zones. The marine biome, which includes oceans, coral reefs, and estuaries, covers 70% of the Earth. The freshwater biome is broken down into ponds, lakes, rivers, streams, and wetlands, supporting diverse species. Viewers also learn fascinating facts, like the Caspian Sea being the largest lake and the Nile River the longest in the world.
Takeaways
- 🌍 There are two major aquatic ecosystems: the marine biome and the freshwater biome.
- 🌊 The marine biome consists of saltwater oceans and is the largest biome on Earth, covering about 70% of the Earth's surface.
- 🐟 Marine ecosystems include oceans, coral reefs, and estuaries, and are home to a vast diversity of marine life.
- 🌞 Oceans are divided into light zones based on sunlight penetration: the Sunlight Zone, the Twilight Zone, the Midnight Zone, and the Abyssal Zone.
- 🌱 Coral reefs, despite their small size compared to oceans, host 25% of all marine species, making them vital ecosystems.
- 🌾 Estuaries are where rivers meet the sea, creating a mix of freshwater and saltwater, and supporting a wide range of species.
- 💧 Freshwater ecosystems include lakes, ponds, streams, wetlands, and rivers, and are home to over one hundred thousand aquatic species.
- 🏞️ Freshwater biomes are categorized into lentic (still water) and lotic (flowing water) ecosystems, with each having distinct zones and species.
- 🌿 Wetlands are a unique combination of land and water, supporting a diverse range of plant and animal life, including alligators and crocodiles.
- 📚 The largest lake (Caspian Sea), the longest river (Nile River), and the largest wetland (Pantanal) are notable features of the world's aquatic ecosystems.
Q & A
What are the two major aquatic ecosystems?
-The two major aquatic ecosystems are the marine biome and the freshwater biome.
What is the difference between an ecosystem and a biome?
-An ecosystem is a smaller unit consisting of the group of plants and life that live within a biome. A biome, on the other hand, is a larger area defined by physical factors like climate and rainfall, and can be found all over the planet.
What percentage of Earth's surface is covered by the marine biome?
-The marine biome covers about 70 percent of the Earth's surface.
How much of Earth's water supply is accounted for by marine ecosystems?
-Marine ecosystems account for more than 97 percent of Earth's water supply.
What are the three classes of the ocean in the marine biome?
-The three classes of the ocean in the marine biome are oceans, coral reefs, and estuaries.
What are the four light zones in the ocean?
-The four light zones in the ocean are the Sunlight Zone, the Twilight Zone, the Midnight Zone, and the Abyssal Zone.
What is the significance of coral reefs in the marine biome?
-Coral reefs are significant because they are small in size compared to oceans, but they are home to over 25 percent of all marine species.
What is the difference between lentic and lotic ecosystems in freshwater biomes?
-Lentic ecosystems, like ponds and lakes, have still water, while lotic ecosystems, like rivers and streams, have flowing water.
What are the four zones of biotic communities in lakes?
-The four zones of biotic communities in lakes are the Toro Zone, the Limnetic Zone, the Euphotic Zone, and the Benthic Zone.
What are some examples of animals found in marine ecosystems?
-Examples of animals found in marine ecosystems include sharks, swordfish, tuna, eels, sea horses, blue whales, seals, walruses, dolphins, manatees, and otters.
Which is the largest lake in the world according to the script?
-The largest lake in the world is the Caspian Sea.
Outlines
🌊 Marine and Freshwater Biomes
This paragraph introduces the two major aquatic ecosystems: marine and freshwater biomes. It explains the difference between an ecosystem and a biome, highlighting that biomes are larger and influenced by factors like climate and rainfall. The marine biome, which includes oceans, coral reefs, and estuaries, is described as the largest biome on Earth, covering about 70% of the Earth's surface and containing over 97% of the planet's water. The paragraph details the different light zones in the ocean, including the Sunlight Zone, Twilight Zone, Midnight Zone, and Abyssal Zone, each with its own characteristics and inhabitants. Coral reefs are emphasized for their biodiversity, hosting 25% of all marine species despite their relatively small size. Estuaries are introduced as areas where freshwater and saltwater mix, creating a unique ecosystem.
🐠 Diversity in Aquatic Ecosystems
Paragraph 2 delves into the variety of species found in marine ecosystems, mentioning various fish, marine mammals, and mollusks. It then contrasts marine ecosystems with freshwater ecosystems, which include lakes, ponds, streams, wetlands, and rivers. Freshwater ecosystems are described as valuable resources and home to over one hundred thousand aquatic species. The paragraph outlines the three main types of freshwater ecosystems: lentic (still water) and lotic (flowing water) ecosystems, with lakes and ponds being lentic and streams and rivers being lotic. Wetlands are characterized as a mix of land and water, supporting a diverse range of animal and plant life. The paragraph concludes with interesting facts about the largest lake (Caspian Sea), the longest river (Nile River), and the largest wetland (Pantanal in South America), emphasizing the importance and scale of these aquatic ecosystems.
Mindmap
Keywords
💡Aquatic ecosystems
💡Marine biome
💡Freshwater biome
💡Ecosystem
💡Biome
💡Light zones
💡Coral reefs
💡Estuaries
💡Lentic ecosystems
💡Lotic ecosystems
💡Wetlands
Highlights
Introduction to aquatic ecosystems, emphasizing the marine and freshwater biomes.
Definition of an ecosystem versus a biome, highlighting their differences and interrelationships.
Description of the marine biome, covering its composition of saltwater oceans and its vast size.
Explanation of the marine ecosystem's significance, accounting for over 97% of Earth's water supply.
Division of the ocean into light zones based on sunlight penetration: sunlight, twilight, midnight, and abyssal zones.
Details on the sunlight zone, where photosynthesis occurs and supports the marine food chain.
Characteristics of the twilight zone, with its limited sunlight and adapted marine life.
The midnight zone's description, a dark and high-pressure environment with few species.
Overview of the abyssal zone, the deepest part of the ocean with unique marine life.
Importance of coral reefs, housing 25% of all marine species despite their relatively small size.
Function of estuaries as transition zones between freshwater and saltwater, supporting diverse life.
Marine life diversity, including various fish, mammals, and mollusks.
Introduction to freshwater ecosystems, their value, and the variety of species they support.
Classification of freshwater ecosystems into ponds, lakes, streams, rivers, and wetlands.
Description of lentic ecosystems, such as ponds and lakes, and their biotic community zones.
Details on the different zones within lakes, including the limnetic, euphotic, and benthic zones.
Characteristics of lotic ecosystems, like streams and rivers, and their flowing water habitats.
Wetlands as a combination of land and water, supporting a diverse range of plant and animal life.
Fun facts about the largest lake, river, and wetland in the world.
Conclusion summarizing the key points about the two major aquatic ecosystems.
Transcripts
hey everybody in today's video we're
gonna learn all about the two major
aquatic ecosystems but before we do make
sure you like And subscribe for more
videos just like this ready to learn
about aquatic ecosystems well then let's
go
there are two major aquatic ecosystems
or water biomes and they are the marine
biome and the freshwater biome but first
let's go over the difference between an
ecosystem and a biome an ecosystem is
smaller than a bio biomes can be found
all over our planet and are created by
physical factors like climate rainfall
and more and an ecosystem is the group
of plants and life that live within a
biome
the marine biome is primarily made up of
saltwater oceans
and marine ecosystems are the largest of
Earth's aquatic ecosystems and exists in
waters that have a high salt content
marine ecosystems are the largest biome
on planet Earth and cover about 70
percent of the Earth's surface
marine ecosystems account for more than
97 of Earth's water supply and 90 of the
livable area on our planet
the marine biome is primarily made up of
the oceans that can be divided into
three classes oceans coral reefs and
estuaries the ocean has layers called
light zones because they are based on
how much sunlight each area can receive
light zones are divided into four sub
zones they are the sunlight zone The
Twilight Zone The Midnight Zone and the
Abyssal Zone
the sunlight zone is the top surface
that gets the most direct sunlight
to the ocean organisms through
photosynthesis
and this sunlight helped the ecosystem
by feeding plants as well as small
little organisms called Plankton which
provide food for many different types of
ocean life
The Twilight Zone is the area right
below the sunlight zone it runs from
about 600 feet deep to 3 000 feet deep
depending on how cloudy the water is hmm
I wonder if Rod Serling was aware of
that
uh Gus Rod Serling developed a different
type of Twilight Zone anyway there's
just too little sunlight for plants to
live in the Twilight Zone and the sea
animals that live there have actually
adapted to living with little to no
light
hey guess what
their own light like lightning bugs
that wouldn't be underwater could you
like fish
the midnight zone is the Zone below 3000
feet and it is completely dark there and
also the water pressure is very high and
very cold only a few animals have
adapted to survive in these harsh
conditions
the Abyssal zone is the
thousand feet deep
next we have coral reefs coral reefs are
small in size if you compare them to
Oceans but or your 25 of all marine
species live in the coral reefs making
them a vital
coral reefs
Coral we went over this like a dozen
times coral Coral
coral reefs
okay
wow
that's right Quinn because ecosystems
are part of biomes and coral reefs are
also a distinct part of the aquatic
ecosystem and are made up of a thin
layer of calcium carbonate or limestone
last we have estuaries estuaries are
areas where rivers and streams flow into
the ocean
this is where freshwater and saltwater
meat creating an ecosystem with many
different types of plant and animal life
sharks swordfish tuna eels and sea
horses are just some of the fish in
marine ecosystems
some marine mammals are blue whales
seals walruses Dolphins manatees and
otters
octopus clams squids oysters and snails
are called mollusks and live in marine
ecosystems
freshwater ecosystems are lakes ponds
streams wetlands and rivers basically
this water ecosystems
and hey guess what freshwater ecosystems
are one of the most valuable resources
on our planet and are home to over one
hundred thousand aquatic species
there are three main types of freshwater
ecosystems or biomes ponds and lakes
streams and rivers and wetlands
ponds and lakes are often called lentic
ecosystems which means they have still
water not moving water like rivers or
streams do
Lakes are usually divided up into four
zones of biotic communities
the Toro Zone and this is the area
closest to the shore where aquatic
plants grow
The limnetic Zone this is the open
surface waters of the lake away from the
shore
next is the euphotic zone and this is
the area below the surface of the water
where there is enough sunlight for
photosynthesis
the benthic zone
this is the floor or bottom of the lake
Lake animals include Plankton crayfish
snails worms frogs Turtles insects and
fish
Lake plants include water lilies
duckweed Cattails and bladder work
next we have streams and rivers
rivers and streams are often called
lodic ecosystems which means they have
flowing water unlike ponds and lakes
and just some of the types of river
animals that live around rivers are
insects snails crabs fish salamanders
snakes
otters and beavers
River plants typically live along the
edge of the river where the water moves
much slower and these plants include
tape grass water star grass willow trees
and River Birch and last we have
wetlands
the wetlands biome is a combination of
land and water
do you think of land is wet there
Wetlands yeah yeah you're probably like
next you're right Gus and that land may
be mostly underwater for part of the
year or flooded at certain times
a key characteristic of the Wetland is
that it supports aquatic plants
Wetlands include bogs swamps and marshes
Wetland animals have a huge diversity in
animal life amphibians birds and
reptiles all thrive in wetlands
the largest predators are alligators and
crocodiles
wetland plants make
made under water
even flow on top of the water
some of these plants include milkweed
water lilies duckweed cypress trees and
mangroves
hey guess what ready did you know that
the largest lake
in the world is the Caspian Sea
the longest river in the world is the
Nile River
and the largest wetland in the world is
the pantanal in South America
well hey guess what now we know all
about the two major aquatic ecosystems
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