throughout the articles they all made the point of while oceans waters are increasing in temperature, the phytoplankton is decreasing. In the Article " Phytoplankton Population Drops 40 Percent since 1950" (written in 2010). expresses the concern with the drop of phytoplankton. This is the first article that is really starting to take a concern in the decline of phytoplankton. In the artcle they took into consideration as what might happen in 10 years if the population of phytoplankton continues to decrease. scientist did some research and came to the conclusion that rising sea temperatures do in fact kill phytoplankton. the warmer water deprives the phytoplankton the materials they need in order to turn CO2 and sunlight into energy. scientists new that the decline would have a big impact on many other species.
in the article " Plankton will suffer as oceans warm" (written in 2013) really expressed the importance of phytoplankton. phytoplankton are an important role in the carbon cycle, they remove half of all CO2 from the atmosphere during photosynthesis. they are also a big role in the wood web, they are the source of food for many organisms. with water temperatures rising and the population decreasing it affects other species in the wood chain. without phytoplankton all will suffer.
throughout all the articles they all give the concern of how everything will die off and be affected if the temperatures of ocean waters continue to rise and kill off phytoplankton. we need to do something about this before its to late.
Friday, February 28, 2014
Friday, February 7, 2014
Relationships Amoung Marine Organisms
Marine Food Web:
In the food web I played the role of a krill. Krill are only about 2 inches long but they play a big role in the food chain. Krill feed on phytoplankton, microscopic, single-celled plants that float near the ocean’s surface and live off carbon dioxide and sunlight. They play a big role in the diets of literally hundreds of different animals, from fish, to birds, to whales. Krill is near the bottom of the trophic pyramid and falls slightly above the autotroph section. krill's diet consumes of phytoplankton which fall right under krill on trophic levels. If one organism was to disappear from the food chain every species would suffer. say phytoplankton became extinct, everything would be in danger. phytoplankton are the beginning of the food web and everything depends on it. without it krill would have nothing to eat and soon die off. with krill gone fish, birds, whales and many others would have no food. Simply put, without phytoplankton and krill, most of the life forms in the Antarctic would disappear. During the class activity where we connected with string many organisms ate krill. If I dropped my end of the string which meant krill had died off, all those had no food. which would result in everything dying off.
This is an image of Krill.
http://animals.nationalgeographic.com/animals/invertebrates/krill/
Phytoplankton:
A) Phytoplankton are very important to the ecosystem because the phytoplankton are the basis of everything. phytoplankton are the bottom of the food chain which is very important because without it nothing else would have food resulting in nothing to survive. they take up 60% of the world.
B) Diatoms depend on sunlight for energy to preform photosynthesis and nutrients such as nitrogen and phosphorus to support their life process. During the springtime upwelling nutrients from the ocean floor are brought to the top of the water. these nutrietns are a combination of dead organisms and feces. this sets off algae blooms. Diatom communities are a popular tool for monitoring environmental conditions, past and present, and are commonly used in studies of water quality. which is an abiotic feature. Diatomaceous earth is a naturally occurring, soft, sedimentary rock that is easily crumbled into powder. It has a size from less than 3 micrometres to more than 1 millimeter.
"Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated." that is the definition of reflection. diatoms are used in reflective paint because diatoms give off the reflection that helps make the signs stand out. Diatoms are also good for pools.
This is a picture of a diatom.
http://www.ucl.ac.uk/GeolSci/micropal/images/diat/dia_intro.gif
Energy Flow:
Energy is transferred from different trophic levels by consuming other organisms. when consuming other organisms the consumer gets energy. When a lower trophic level in the food web is eaten by one higher up the energy level 90% of energy is lost. It is hard to receive energy when you are higher up on the food chain.
Human Impacts:
Humans play a big role in marine food web. Humans are at the very top of the marine food web. We eat a lot of marine life, such as fish, clams, scallops and sometimes sharks. Though we need to be careful because our actions can upset the food web. If we hunt/ eat to much marine life it can ruin the food web and kill of and make many organisms extinct.
In the food web I played the role of a krill. Krill are only about 2 inches long but they play a big role in the food chain. Krill feed on phytoplankton, microscopic, single-celled plants that float near the ocean’s surface and live off carbon dioxide and sunlight. They play a big role in the diets of literally hundreds of different animals, from fish, to birds, to whales. Krill is near the bottom of the trophic pyramid and falls slightly above the autotroph section. krill's diet consumes of phytoplankton which fall right under krill on trophic levels. If one organism was to disappear from the food chain every species would suffer. say phytoplankton became extinct, everything would be in danger. phytoplankton are the beginning of the food web and everything depends on it. without it krill would have nothing to eat and soon die off. with krill gone fish, birds, whales and many others would have no food. Simply put, without phytoplankton and krill, most of the life forms in the Antarctic would disappear. During the class activity where we connected with string many organisms ate krill. If I dropped my end of the string which meant krill had died off, all those had no food. which would result in everything dying off.
This is an image of Krill.
http://animals.nationalgeographic.com/animals/invertebrates/krill/
Below we have a picture of a marine food web, showing us how organisms rely on each other
Phytoplankton:
A) Phytoplankton are very important to the ecosystem because the phytoplankton are the basis of everything. phytoplankton are the bottom of the food chain which is very important because without it nothing else would have food resulting in nothing to survive. they take up 60% of the world.
B) Diatoms depend on sunlight for energy to preform photosynthesis and nutrients such as nitrogen and phosphorus to support their life process. During the springtime upwelling nutrients from the ocean floor are brought to the top of the water. these nutrietns are a combination of dead organisms and feces. this sets off algae blooms. Diatom communities are a popular tool for monitoring environmental conditions, past and present, and are commonly used in studies of water quality. which is an abiotic feature. Diatomaceous earth is a naturally occurring, soft, sedimentary rock that is easily crumbled into powder. It has a size from less than 3 micrometres to more than 1 millimeter.
"Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated." that is the definition of reflection. diatoms are used in reflective paint because diatoms give off the reflection that helps make the signs stand out. Diatoms are also good for pools.
http://www.ucl.ac.uk/GeolSci/micropal/images/diat/dia_intro.gif
Energy Flow:
Energy is transferred from different trophic levels by consuming other organisms. when consuming other organisms the consumer gets energy. When a lower trophic level in the food web is eaten by one higher up the energy level 90% of energy is lost. It is hard to receive energy when you are higher up on the food chain.
Human Impacts:
Humans play a big role in marine food web. Humans are at the very top of the marine food web. We eat a lot of marine life, such as fish, clams, scallops and sometimes sharks. Though we need to be careful because our actions can upset the food web. If we hunt/ eat to much marine life it can ruin the food web and kill of and make many organisms extinct.
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