not. As mentioned earlier, the Japanese people are some of the healthiest and longest-lived people in the world. Seaweeds and water pollution: Seaweeds are at the bottom of the food chain and are therefore not prone to bioaccumulation of pollutants. However, seaweeds can absorb considerable amounts of heavy metals or radioactive elements if they are growing near a local point source of these pollutants, such as a nuclear power plant, mine, smelter, chemical plant, paper mill, landfill, waste dump, chemical agricultural region etc. Heavy metals or radioactive elements can also be carried from these sources to the sea by rivers and streams. Buying sea vegetables: Be cautious when buying imported sea vegetables. There is usually no way of knowing where or how these seaweeds were grown. Most of the seaweeds from …show more content…
Ask local people, environmental groups and government agencies (such as the EPA) about local pollution sources before harvesting. Most states allow the personal harvest of 10 pounds or so of fresh seaweed per day without a permit. Go to your harvest area at low tide, and carefully cut seaweed from the rocks, leaving the holdfasts and the base of the blades or fronds for regrowth. Harvest no more than 25% of the plants in a stand. Rinse any snails or sand off in the sea as you harvest. Fresh seaweed is as perishable as fresh fish; keep it cool and moist until you are ready to start drying it. Dry seaweeds outdoors in full sun or in a warm, dry, well-ventilated room. Dry them as quickly as possible and do not allow them to re-dampen once they begin to dry. Hang larger seaweeds on ropes using clothespins; spread smaller seaweeds on nylon screens. If necessary, finish the drying in a heated room. Seaweeds are not fully dry until they snap crisply when bent. Store dried seaweeds in a cool dark place in airtight jars or buckets (or double bag them in heavy-duty food grade polyethylene
Turning algae into crude oil is relatively simple and quick process. A mixture of algae and water are placed in what is essentially a pressure cooker. It is cooked at temperatures of 660 degrees Fahrenheit and a pressure of about 3000psi. This produces oil that is extremely close in make up to the petroleum oil we drill out of the earth. Since it is so similar it can be made into something like diesel using existing methods and facilities. The water left over will be packed with nutrients like nitrogen and can be sold back to the algae growers to fertilize the growing algae. Researchers are also searching for different types of algae that are better for different kinds of fuel. Some algae are better for gas while some algae are better used as diesel fuel.
Recently, scientists have been noticing a quite thing occurring in the ocean that had never been seen before. Scientists have been recently finding a new type of algae in the ocean that does not have very great effects on the environment. Many say that this alga is probably a type of algae that is similar to the ones that grew millions of years ago; this alga is toxic though. It releases terrible pungent odors that can affect health. This algae was first discovered in Australia by fisherman and is now ruining Australian fishing industries by taking over the ocean. Scientist Judith O’Neil from the University of Queensland was the first scientist to discover the origins of this toxic algae. It has been considered a fireweed since it has severely affected ecosystems all over the ocean and has been dominating. However this is not the only primitive species if ocean plant taking over rapidly now. It has been stated that, “Evolution is in reverse” (Kenneth R. Weiss from the Los Angeles Times). Now ancient species of sea life are thriving while more complex organisms and new species aren’t thriving in our oceans. That situation is bad since they are taking over ecosystems completely blocking animals from sunlight, space, and any other necessities. There have also been other species that are now plaguing our oceans such as jellyfish, and other species of algae. These organisms can definitely lead to negative impacts on us and the ocean’s vast ecosystems.
1. Flip the mat where the rice is on the bottom and the seaweed is facing up.
Fishery management The species has a high economic value and is a special favorite of both the live reef food fish trade and with recreational divers. The Humphead wrasse is vulnerable to fishing due to its long life and late sexual maturation (which occurs at approximately 50 cm total length and 5 years of age). This means that its life history is one that involves slow replacement (and hence slow recovery from fishing) rates. Because of its high value as food, it is heavily sought after by fishers and traders.
Do you know that people are polluting oceans in so many ways, and what we are doing about it. First, my evidence shows that two billion people within thirty miles of the coast create 100 million metric tons of coastal plastic waste (Doc.1). In my own words, this evidence show that all this pollution is really harmful to ocean creatures and us. More evidence is that the North Pacific Gyre has collected lots of these pollutants, so it is nicknamed the Great Pacific Garbage Patch (O.I.). This shows how we are polluting the oceans. My next evidence shows that a Beach Act was passed in 2000 saying the EPA or the Environmental Protection Agency will help states test and monitor coastal water pollution to protect swimmers (Doc.2). This evidence
Water is an essential part of life for any living organism in the world. People use water every day to drink, do daily housework, or to bathe in; while animals use water to survive. Because of the doings of humans, the water that is so essential to all organisms’ well being is being polluted. The water drink and use every day may have oil from large petroleum companies spilling into it. Debris from sewer plants float into the ocean when they overflow. Even prescription pills are contaminating the water. Not only is the water affecting the humans that drink it but also affects the aquatic life. Aquatic species may have problems reproducing which disrupts the whole food chain and biodiversity web of life. How water becomes contaminated should
Harmfull Effects of Ocean dumping include animals in danger with trash in their habitat, as well as contamination of public waters.
Species such as the blue crab, oyster, and atlantic menhaden are three main commercial fishing outputs in the Chesapeake bay, but the recent algae blooms are devastating the harvest numbers of several different species. According to the oyster company of Virginia, over 20 million bushels of oysters were harvested every year during the peak of the oyster rush of the mid 1880’s. These numbers
"An Ocean Of Trash." Scholastic Action 33.12 (2010): 16. MasterFILE Complete. Web. 31 Jan. 2014.
Many of the methods used in commercial fishing are very destructive to the aquatic systems. Industrial ocean trawlers scrape the bottom of the water, often dragging up the seafloor with them. This destroys the habitat and kills many of the bottom dwelling organisms that are vulnerable to these practices. There is also a large amount of marine animals that are unintentionally caught by the large nets. These animals are considered bycatch, having no value to fishermen and are usually killed. These large fishing vessels also add a significant amount of pollution to the water. Fishing vessels cause oil spills as well as discharging chemical elements and wastes into the water. The thousands of of trawlers that pass through Japanese waters create large quantities of water pollution that can devastate aquatic life by changing the chemical composition of the water and affecting all the organisms that inhabit these
"Ocean Pollution." MarineBio Conservation Society ~ Marine Biology, Ocean Life Conservation, Sea Creatures, Biodiversity, Research... Web. 19 May 2014.
Different pollutants cause different things to happen to plants. Sometimes, water pollution causes an explosion of new plant growth by providing necessary nutrients and food. If there is too much of one species, this can harm or kill plants by changing their growing conditions, such as raising or lowering the environment’s acidity. Plants must take in nutrients from the surrounding environment in order to grow. Nitrogen and phosphorus, in particular, help a plant’s growth because they are important in photosynthesis. This is why they are common ingredients in plant fertilizers. When runoff from farms pollute waterways with nitrogen and fertilizers rich with phosphorus, the water enriched with nutrients often have stunts of growth. Sometimes too much growth can be harmful, as when plant-like algae bloom in polluted waters and create oxygen-depleted dead zones. One solution to this issue is planting seaweed farms in areas that get alot of runoff from farms. This is because seaweed can soak up the excess nutrients and be harvested for people to eat. Marine debris is garbage that ends up in the ocean. Plastic debris that builds up at or near the water’s surface blocks sunlight from fully reaching plants that rely on sunlight to move along the photosynthesis process. By blocking sunlight, marine debris prevent plants from creating glucose at full capacity, which stunts their growth. When chemical pollutants
Research from the University of California San Diego Scripps Institution of Oceanography said that species in the ocean consume a projected 12,000 to 24,000 tons of plastic every year in the Pacific Ocean (Nall, 2014). Pollution of recyclable materials in the oceans is one of the leading causes of why some marine species are nearing extinction. Many authors of articles and books analyzing this topic tend to agree that pollution of our oceans is a problem. The future of this problem is where their ideas tend to differ. The following four literature reviews attempt to demonstrate and support my belief that pollution is getting worse in the ocean and more marine life ecosystems are being affected, but there are things that we as humans can do to change this. Imagine a world where we didn’t have to constantly worry about the vicious cycle of humans affecting animals and then animals in turn affecting us through consumption.
...s to take action on contaminated beaches nearby are to speak out, attend public meetings, and/or volunteer. To reduce the contaminants in the ocean, everyone can plant trees, dispose chemicals and pet waste in the correct designated areas, prevent waste from going into seward and storm drains, prevent the clogs in storm drains, organize neighborhood cleanups, recycle paper, plastic, and glass, and maintain cars from oil leaks. To give a helping hand, there are many volunteer programs for people to clean up waste on the shore lines. They have a website where people are able to help out along the coastlines of California near them; www.cacoastkeeper.org/take-action/volunteer. We have created this problem, we should be able to resolve it. Either we change what we’re doing on land, or face the future extinction of many animals and people due to the cause of one species.
Seagrass is on the decline around the world and it is an extremely vital marine ecosystem found in shallow water mainly distributed throughout tropical seas, from a temperature around 4oC to 24oC (Green and Short 2003). They are the only true flowering plant (angiosperm) to live in aquatic conditions providing support and shelter for vast amounts of species (Orth et al. 2006; Jackson et al. 2001). They are a marine aquatic plant and a keystone species for many coastal areas found all over the world (Libralato, Christensen and Pauly 2006). Although there is not a huge variety of species, there are only around 60 species globally and over 14% of them are endangered (Green and Short 2003; Orth et al. 2006). The different seagrass ecosystems perform relatively similarly throughout the varying species (Turner and Schwarz 2006). This study will examine the various importances of seagrass and to what extent they are vital for the survival of species within their ecosystem. In addition to this, the role of seagrass in important ecosystem processes will be examined. The abundance of coastal regions are closely linked with seagrasses as they greatly contribute to productivity. Seagrass meadows are highly productive and are ideal for nurseries and providing a relatively safe habitat and shelter from predators (Hughes et al. (2008).