Why Is A Starfish So Slow But Never Has Tiny Particles Like Algae And Barnicles On It?

Rain washes the pesticides that are used in our Australians households and then become run-off in drains and sewers. They then make their way into nearby water bodies, wether that be creeks, rivers or even oceans and settle within the soil by sticking to small particles, including tiny living organisms like phytoplankton (M. Barwick, 2003, pp. 471-502). Small fish consume these tiny organisms, which may then be eaten by a larger organism and this continues until the top order consumer is reached. The concentration that first began in the phytoplankton and has multiplied sufficiently as it moves along the food chain. The amount of the pesticide has reached a highly toxic level in the top order predator, whether that is birds or even humans. As a result of the biomagnification of pesticides and other chemical the marine environment and the organisms that live within it are heavily affected. The build up of heavy metals, for example, it interferes with the formation of red blood cells, creates liver and kidney implications and forms reproductive defects in many organisms. This hinders an organism’s ability to survive and reproduce and can create a decline in species

More than 750,000 pieces of microplastic can be found in just one square kilometer of it. Approximately 80 percent of its debris comes from land, 10 percent is made up of over 700,000 tons of commercial fishing nets, and the remaining 10 percent consists miscellaneous objects discarded by recreational and commercial ships. What is it? The Great Pacific Garbage Patch. The garbage patch lies in the Pacific Ocean between the west coasts of America and the East coasts of Asia. Because the effects on marine life caused by the Great Pacific Garbage Patch are detrimental to their habitat, diet, and

Copper concentrations that exceed 20 micrograms per gram can be toxic to any living thing (Solomon). Copper binds easily to organic matter, which means it levels are rather high in animals that can filter materials from water; although biomagnification doesn’t occur in the food web. In terms of aquatic organisms and ecosystems, copper is one of the most toxic metals, and aquatic organisms tend to be more sensitive to its effects.

Copper is another pollutant that at very high levels is toxic and can cause vomiting, diarrhea, loss of strength or, for serious exposure, cirrhosis of the liver (Pure Water Services). In order for copper to metabolized the heavy metal zinc is needed. Zinc helps with copper breakdown but too much zinc can cause a copper deficiency which can also cause problems such as anemia. While copper has some severe side effects there have not been any cases that are related to cancer. In most cases throughout the Silver Bow Creek copper is not thought to be a severe threat to the community.

In 1988 Canadian government research scientists identified a 630,000- cubic meter blob of black oily oozing sludge, approximately 5-8 meters below the surface of the water, which is described as a “toxic Cocktail”. This sludge is the largest and most PAH(Heavy Metal)-contaminated sediment site on the Canadian Great lakes. It was identified as mainly coal tar, which is a by-product of the coking process that is necessary for steel making, but to this day no steelmaker, other business or person has ever been charged with causing this environmental mess.

The problem with plastic ending up in the ocean is that marine life is being harmed by the presence of it. A study done on the harbor seals in the Netherlands found that more than 12% had plastic in the digestive system (California Coastal Commission). The list of affected species indicates that marine debris is affecting a significant number of species. It affects at least 267 species worldwide, including 86% of all sea turtle species, 44% of all seabird species, and 43% of all marine mammal species (Save our shores). The problem is underestimated because the marine life that ingests plastic or dies from entanglement often goes undiscovered due to the vastness of the ocean, as they either sink or are eaten by predators before they are discovered (Plastic Debris). The potential harm from ingestion of plastics is not restricted to seabirds. Plastic bags drifting on ocean currents resemble the prey of turtles. There is evidence that their survival is being hindered by plastic debris with young sea turtles being vulnerable (Ocean pollution). Over the past 20 years polychlorinated biphenyls (PCBs) have polluted marine food webs at an increasing rate, and are prevalent in seabirds. Though their adverse effects may not always be apparent, PCBs lead to reproductive disorders, increase the risk of disease and alter hormone levels. These chemicals have a detrimental effect on marine organisms even at very low levels and plastic pellets could be a route for PCBs into marine food

Starfish and crayfish are both invertebrates, but they have many differences. Last week,  our class did a dissection on each and learned more about them. This research paper will explain some differences between the two that were learned during dissections and by doing outside research.

Marine pollution is not a new phenomenon, but our acknowledgement of its impacts and severity is relatively new, with the first laws and discussions to counter it only appearing in the 1950’s. For much of history, it was thought that the oceans were so large that any pollution created would be negligible and easily diluted (Marine Pollution). Since, countless research and laws have been implemented in order to preserve our marine ecosystems because of how crucial these ecosystems are to humanity.

The oceans need to be protected because it is where life began and if not taken care of, life as we know it will end. The well-being of the ocean is constantly being threatened and needs to stop. When dangerous substances go into the ocean, ecosystems suffer and become endangered along with the lives of people and marine life. The importance of protecting and preserving the quality and biodiversity of the world 's coasts must be recognized because they are truly irreplaceable. If humans are not educated , and become careless about what is thrown on the ground or sprayed on lawns, disastrous effects follow when it comes to the condition of the ocean’s ecosystems, which can endanger life itself, leading to a problem only we can correct. There is historical evidence of ocean pollution, although the problem still shadows us today.

The beauty of California is slowly fading away and as environmentalists would say, “There was once a town in the heart of America where all life seemed to live in harmony with its surrounding” (Carson, 366). According to the findings revealed by research foundations in California, marine life is and has been in great danger as a result of plastic remains that accumulates in the Ocean. In his article Daniel Woods states, “Approximately eighty percent of remains found in Oceans are made of plastic that originates from urban runoffs such as plastic trash carried away from landfills, trucks, as well as garbage containers, marinas, ports and construction trash” (Wood, 20). Furthermore, these results also revealed that marine remains where made up of disposable plastic products that constitute food packaging as well as containers that are ever present and contain precious resources that can be used unsustainably. These issues have affected the state critically and have lead me to research the reasons behind the banning of plastic pollution, their economic impact, harm resulting from plastic pollution, as well as federal concerns on plastic contamination.

Often, toxic substances are being drained into the air, waterways, and undergrounds wells. According to the report by Environmental Protection Agency (EPA), over 60 million pounds of deadly chemicals are produced by industries in Florida. Notably, Florida’s water has been suffering mercury contamination until the state’s department of migration issues a circular regularly for regulations of eating freshwater fish in the region (Florida Fish and Wildlife Conservation Commission). In fact, such metals emanate from coal combustion’s emissions which run into water bodies. Not to mention, pesticides and herbicides utilized by government and homeowners pollute the environment (Florida Fish and Wildlife Conservation Commission). Indeed, all chemicals released into the atmosphere find themselves in rivers.

“Why should the leaders of chemical businesses be held responsible for polluting the marine environment with a few grams of effluent, which is sublethal to marine species, while celebrity chefs are turning out endangered fish at several dozen tables a night without enduring a syllable of criticism” (Charles Clover, 2004).

According to Oceana, the agency in charge of protecting the world’s oceans, the number one pollutant in the North Pacific Gyre is still plastic. Oceana remains unsure of the quantity of plastic in the water. Our “need” for plastic has harmed innocent little creatures and ourselves as well when we should be searching for safer alternatives instead.

From Matthew Maury’s first steps in the young field of oceanography, to the HMS Challenger’s first expedition, and now to modern day, the ocean has always been a place for exploration and discovery. Two issues that are at the forefront of modern oceanic discussions are offshore drilling and ocean acidification. Ocean acidification offsets the chemical balance in the ocean and disturbs the marine life in the ocean, and offshore drilling causes serious damage to the surrounding ecosystem and affects the chemical makeup of the ocean through oil spills.

bundles of fine threads, rusty brown, they have a fishy smell, and are common in