I think the article "Phytoplankton Population Drops 40 Percent Since 1950" by Scientific American was the most accurate and unbiased story. It supported it's facts with evidence and explained the decrease of phytoplankton in a factual way, that was successful in convincing the reader in the dangers of life without them.
The story in 2010 discusses the alarming drop in phytoplankton. Although, it was too soon for the scientists to be sure of what the after all effect of the drop will be, they tried their best to guess. Unfortunately, there was no way to prove it. The story in 2013 discussed the new invented tools used to watch the decrease in phytoplankton. They used a Secchi disk to observe the phytoplankton.""This new algorithm allows us to detect changes in plankton numbers that have previously gone unnoticed," said Johnson."""Algorithm finds missing phytoplankton in Southern Ocean." Algorithm finds missing phytoplankton in Southern Ocean. N.p., n.d. Web. 28 Feb. 2014. <http://www.phys.org/print298715250.html> But even in 2013, the scientists were unable to predict the effect of the constant decrease in phytoplankton.
The main concern about phytoplankton continuing to decrease is the fact that they support the entire marine life ecosystem. They are at the bottom of the food chain and if they were to become extinct, the animals would all start to die off. Even for us humans, it would be horrifying. Because of the phytoplankton 50% of the worlds Co2 is kept at the bottom of the ocean because of these little sea creatures. They even produce as much oxygen as trees. Without them, our way of life would be greatly affected.
The thought of all phytoplankton becoming extinct is incredibly upsetting. They are the base of the marine food web and benefit us humans more than we realize. It's even more upsetting to think that part of the reason why they are decreasing is because of global warming, which is a biproduct of us humans killing the ozone layer.
Friday, February 28, 2014
Friday, February 14, 2014
Relationship Among Marine Organisms
Marine Food Web:
The animal that I was in the activity was a seal. Seals usually only eat fish as their diet. As for the animals that eat seals are whales, sharks, humans, etc. The seal is a third class killer; towards the top of the marine food chain. If one species were to become endangered or extinct, the food chain would change. There could be a growth of a certain type of animal or a loss. Animals rely on each other to survive and if one were to die, it would seriously affect the whole food chain.
For the class activity we all were assigned an animal in the marine food web. We went out into the hall and connected each of the sea creatures with who ate who with a sting. We were able to see what would happen if one of the creatures were to become extinct. What I wrote for my exit ticket was: The seal is towards the top of the food web. Seals eat fish mainly. A seal is a third level carnivore. They depend on the other sea creatures to survive. If one of them is removed from the web, it would create a spiral affect.
https://www.google.com/search?q=seal&source=lnms&tbm=isch&sa=X&ei=_63rUsL5CPCGyQHT3oCoAQ&ved=0CAcQ_AUoAQ&biw=1366&bih=667#facrc=_&imgdii=_&imgrc=N-vQhqIBHyNbTM%253A%3B1HC8P8AJFHO9NM%3Bhttp%253A%252F%252Fwww.usgs.gov%252Fblogs%252Ffeatures%252Ffiles%252F2012%252F08%252FHarbor-Seal-Pup1.jpg%3Bhttp%253A%252F%252Fwww.usgs.gov%252Fblogs%252Ffeatures%252Fusgs_top_story%252Fmutated-flu-virus-kills-new-england-seal-pups%252F%3B627%3B417
Phytoplankton:
Phytoplankton are very important and essential to the food web. They are at the bottom of the chain, but supply a source of food for animals that then builds the chain. The neuston ecosystem covers up 71% of the Earth's surface. The organisms in the neuston ecosystem are fish, beetles, etc.
Diatoms are well adapted to living in open water, used in filters, and the glitter on them can be used as reflective paint. Diatoms use and depend on the sunlight to preform photosynthesis and nutrients. They have adapted to surviving in open water. They stay afloat to collect the sun's energy and some have spines to help keep them afloat.
Diatomaceaus earth is diatom skeletons. The reflection of light is made from the silica on them. Because of their silica they can be used for reflective paint. They are very useful and can be found in the filters of pools to clean.
From this lab, I was able to learn how tiny these particles are and with a microscope we were able to the see the beautiful designs and how they reflect. On the diatoms are circles, but if you look closer they are hexagons. It opened my eyes to realize that everything on this earth can be useful.
Energy Flow:
Energy is moved from each trophic level to the next because of the pass of nutrients and survival. Each creature relies on each other to survive which spreads energy to each trophic level.
Human Impacts:
Humans play a huge role in marine food webs because they eat and kill the creatures in the ocean. This could be very dangerous because it affects the energy between the trophic levels and could leave some of the sea creatures starving. This could upset the balance of the ocean ecosystem.
The animal that I was in the activity was a seal. Seals usually only eat fish as their diet. As for the animals that eat seals are whales, sharks, humans, etc. The seal is a third class killer; towards the top of the marine food chain. If one species were to become endangered or extinct, the food chain would change. There could be a growth of a certain type of animal or a loss. Animals rely on each other to survive and if one were to die, it would seriously affect the whole food chain.
For the class activity we all were assigned an animal in the marine food web. We went out into the hall and connected each of the sea creatures with who ate who with a sting. We were able to see what would happen if one of the creatures were to become extinct. What I wrote for my exit ticket was: The seal is towards the top of the food web. Seals eat fish mainly. A seal is a third level carnivore. They depend on the other sea creatures to survive. If one of them is removed from the web, it would create a spiral affect.
https://www.google.com/search?q=seal&source=lnms&tbm=isch&sa=X&ei=_63rUsL5CPCGyQHT3oCoAQ&ved=0CAcQ_AUoAQ&biw=1366&bih=667#facrc=_&imgdii=_&imgrc=N-vQhqIBHyNbTM%253A%3B1HC8P8AJFHO9NM%3Bhttp%253A%252F%252Fwww.usgs.gov%252Fblogs%252Ffeatures%252Ffiles%252F2012%252F08%252FHarbor-Seal-Pup1.jpg%3Bhttp%253A%252F%252Fwww.usgs.gov%252Fblogs%252Ffeatures%252Fusgs_top_story%252Fmutated-flu-virus-kills-new-england-seal-pups%252F%3B627%3B417
Phytoplankton:
Phytoplankton are very important and essential to the food web. They are at the bottom of the chain, but supply a source of food for animals that then builds the chain. The neuston ecosystem covers up 71% of the Earth's surface. The organisms in the neuston ecosystem are fish, beetles, etc.
Diatoms are well adapted to living in open water, used in filters, and the glitter on them can be used as reflective paint. Diatoms use and depend on the sunlight to preform photosynthesis and nutrients. They have adapted to surviving in open water. They stay afloat to collect the sun's energy and some have spines to help keep them afloat.
Diatomaceaus earth is diatom skeletons. The reflection of light is made from the silica on them. Because of their silica they can be used for reflective paint. They are very useful and can be found in the filters of pools to clean.
From this lab, I was able to learn how tiny these particles are and with a microscope we were able to the see the beautiful designs and how they reflect. On the diatoms are circles, but if you look closer they are hexagons. It opened my eyes to realize that everything on this earth can be useful.
Energy Flow:
Energy is moved from each trophic level to the next because of the pass of nutrients and survival. Each creature relies on each other to survive which spreads energy to each trophic level.
Human Impacts:
Humans play a huge role in marine food webs because they eat and kill the creatures in the ocean. This could be very dangerous because it affects the energy between the trophic levels and could leave some of the sea creatures starving. This could upset the balance of the ocean ecosystem.
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