biosphere, bioaccumulate, biodiversity, food web, ecology, abiotic
factors, and biotic factors.
The Ocean Biosphere: From Microbes
Planet Earth is truly a water
We have a connection to all
living things in the ocean, from the
microscopic floating plants that
supply us with the oxygen we breathe,
to the huge blue whale that fills its
belly with a ton of krill.
This circle of
life is called a
biosphere is composed of all living
things, from the deepest oceans to the
It includes all the
air, land and water where life exists.
All living things depend upon and
interact with each other and with the
non-living things in their
The study of interactions
between organisms and their
environments is called
Living things such as plants and
animals in the environment are called
biotic factors, or biota
things in the environment, such as
soil, water, temperature, light,
salinity, chemical composition, and
Together, these factors interact and
function as an
ecosystem is a community of different
organisms interacting with the abiotic
parts of its environment.
may be as small as a beehive, or as
large as the Atlantic Ocean.
aid of technology, we are discovering
entire new ecosystems that survive in
Our Ocean Biosphere
Look at an atlas of the world
and identify one of the major oceans
found on planet earth.
In short, the
ocean itself is composed of the basin,
water, and biotic and abiotic factors.
The basin is composed of oceanic
crust made at the mid-oceanic ridge.
The water is supplied from rainfall
and run off from the land.
in the ocean is all living plants and
A few abiotic factors are
temperature, salinity, pressure,
dissolved gases and depth.
The components are not that
easily summed up.
We will not dive
deeper into the formation of the
oceanic basin, or the rain that fills the
basin, but we will explore deeper into
the biotic and abiotic factors found in