Eutrophication, which is excessive richness of nutrients in any form of body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen, is another reason why the creek could be polluted. Fertilizers are used in farming to provide crops with nutrients, but they also play a big role in the Eutrophication process. If too much fertilizer is used, it leaches from the soil in
This had a huge effect on the planktons. Zooplanktons the eat phytoplankton. If there isn’t much phytoplankton for the zooplankton to eat, there numbers will decrease. The article “ The Short‐Term Impact of the Zebra Mussel Invasion,” “phytoplankton fell by 80 percent. Zooplankton (which eat phytoplankton) declined by half.
Eels used to migrate yearly from the Chesapeake Bay but have been blocked by the large dams on the Susquehanna River. Young eels were captured below the dams and transported here to continue their life span in these home waters. Eels are hosts for mussels which help purify the waters of Pine
We found a little number of Phosphates and Nitrates in the water. That is healthy because these two chemicals are in fertilizers and detergents, they can harm the creek and all the creatures living in the creek. They get into the water through the eutrophication process. Bacteria eat phosphates and nitrates so that means there is a little number of bacteria in this creek. The dissolved oxygen level of the creek is high which is healthy.
One issue found is the creation of smelly phytoplankton that makes murky unclear waters along with aquatic impurities. Moreover, the reduction of growth due to poor light conditions and dying plants make it difficult for predatory fish to hunt leading to overpopulation. (Chislock, 2013) Eutrophication can be found in many of our water resources such as ponds, estuaries, and bays. One region with high areas with eutrophication is in a lake shared by Kisumu, Kenya and Kampala, Uganda.
Lamprey Report During the 1950s lampreys became a problem. Lampreys were feeding on trout in the Great Lakes and by the late 1950s the population of the trout was very little. Fortunately, The Great Lakes Fishery Commission (GLFC), pursuant to the Convention on Great Lakes Fisheries, delivers sea lamprey control in partnership with the U.S. Fish and Wildlife Service, Fisheries and Oceans Canada, and the U.S. Army Corps of Engineers. The GLFC fixed this problem by, killing the larvae and eggs before the lampreys were born.
Due to Minnesota having a tremendous amount of lakes, it opens up doors for new invasive species to come in and take over. A popular specie that has been taking over lakes lately are zebra mussels. Although another invasive species that doesn't get too much attention is Eurasian Watermilfoil. Eurasian watermilfoil was brought over to North America from Europe around the 1950s. It spread inland from boat users and waterbirds near the 1970s.
Recently, because of the downturn of sharks, those coral reefs and seagrass
The Chesapeake Bay Oyster Restoration Project aims to help locate a healthy habitat for oysters. The Chesapeake Bay has been affected by the long-lasting drought in Maryland, which influenced the water quality. The drought increased the salinity of the water which has a negative impact on the oysters. According to the National Oceanic and Atmospheric Administration, “the native oyster is an extremely resilient species, able to tolerate wide variations in salinity and temperature—but it has not been immune to the pressures of disease, overharvesting, and pollution in the Chesapeake Bay. As a result, native oyster populations in Chesapeake Bay are at less than 1% of historic levels” (A,& Blue Water Media).
Matthew Blanch Mr.DeJong Science 11,7,2017 Eutrophication The eutrophication of these muskrats in lakes is when fertilizer goes into the lakes and because light reflects off the lake no sunlight hits the seaweed and the seaweed dies then the nitrogen from the seaweed goes up onto the surface of the water and turns it into a messy green slob. Killing the muskrats.
The human effects on Salmon Salmon are a crucial part of are the environment. They create nutrients in the water and the forests but we are killing them with dams, fish hatcheries, and straight rivers. For instance, dams are dropping the salmon down a 200-foot waterfall, pulling down hundreds of feet from the underpull. (Robert F. service Jan. 10, 2018, 2:25 PM, et al. "
It is strongly recommended to avoid those activation to protect stream environment for eel natural habitat.(17) Thus, in light of the results in this study, it can be assumed that excavation and habitat destruction observed in recent years has probably reduced the quantity and quality of suitable habitats for juvenile eel, which could be negatively affecting both ecologically and economically. 4.5 Further studies Various observations European eel life history should be describe not as truly catadromous, but "facultative or semi catadromous". Due to fact that European eel were found in different waters such as freshwater,brakish and coastal,and freshwater phase is not be a essential part of their life history, could not make them not truly catadromous species.(18) This is the only experimental study until now, as far as we know, that contribute to the understanding the habitat choice of eel juveniles in brackish salinity water .Therefore
The number of sharks in the ocean is decreasing because of a couple of different reasons. In the article, “Sharks: Monsters or Misunderstood,” it mentions how sharks are being endangered. Some of the reasons why sharks are endangered are they mature slowly, produce relatively few offspring, and overfishing. Hundreds of sharks are being killed each year for their fins. In some situations, people cut off the fins of sharks, and just toss them back into the oceans.
An example of this species is an Zebra Mussels. Zebra mussels are invasive can kill native freshwater mussels in two ways the attachment to the shells of native species can kill them. Another way these species can outcompete native mussels and other filter feeding invertebrates for food. Zebra mussels are from Eastern Europe and Russia. They were brought over to the great lakes in ships.
Marine organisms are animals, plants, and other living things that live in the ocean. A Marine biologist is a scientist who studies marine organisms and studies the bodies, behavior, and the history of marine organisms. They also study how marine organisms interact with each other and their environment. I have chosen to research about Marine biology because I would like to learn about sea life, the ocean, and its surrounding environment. To start off, a Marine biologist might study coral, crabs, fish, microscopic marine organisms, sea stars, seaweed, squid, or whales.
