Earth's+Fisheries

B Block:

===1- Statement: Earth's Ocean Fisheries are collapsing... explain, cite, explore, and cite your sources. (Press Edit, copy and paste your answers below (include your first and last names at beginning of your post). Aquaculture is overtaking traditional fisheries in production, but at the rate that it is growing it might come to a halt. Fish farming is growing at 6.6 percent, more than any other food industry.===

===2- How will collapsed fisheries effect the ocean food web? (Answer same as above) If a fish goes extinct because it was over exploited it will effect the whole food web, because the other fish above it in the food web lose a food source.===

===3- How will collapsed fisheries effect the growing human population? (Answer same as above) with people becoming more reliant on fish as a source of nutrients, it could be pretty catostrophic to the growth of human population.===

===4- Question: What are solutions to managing our dwindling ocean resources? (Answer same as above) we can try to control over fishing by limiting the amount of fish you can catch and try to control pollution from boats to try and prevent to many fish being wasted.===

5- What's a question that you developed as a result of your research? what is the most environmentally freindly way for fisheries to obtain fish.
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[]  Jones, Peyton

1. The earth’s fisheries are collapsing. This is due to overfishing in earth’s water reserves. As Boris Worm of Dalhousie University put it, “we are seeing the bottom of the barrel.”

2. Say one species of fish is overfished, the least of our worries will be that it won’t appear on some restaurant's menu. When one species goes extinct, it effects the next and then the next eventually “unraveling” the ocean’s core food web.

3. Fish are a key component to human diet, especially in impoverished counties where fishing is a huge income for people. So not only will it cause a protein inefficiency but also a lose of jobs.

4. Finding sustainable way to catch fish is one option to try to save some of our dwindling ocean resources. This way at least fish won’t be lost in the process of fishing.

5. Are there certain brands of fish that one can eat that will support conscience fisheries?

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Matthew Sullivan 2/18/11

1.) A collapse in ocean fisheries can be defined as the point at which we can no longer sustain ocean fisheries due to a decline in biodiversity and an increase in over-fishing (Dean) The collapse of a fish species can be defined as when a species’ population drops 10% from previous levels. Dr. Worm, a Nova Scotian scientist, believes that ocean fisheries will reach 100% collapse by 2048 (Dean). The only way to potentially save ocean fishery stock, according to Mr. Lundin, head of the World Conservation Union, would be to establish fisheries in protected areas, which would reduce vulnerability and a greater concentration of fish (Black). 2.) Collapsed ocean fisheries could potentially destroy an ocean region’s foodweb. The decline in stock fish would prove catastrophic. Say, for example, anchovies and sardines are over-fished to the point of collapse. Larger predators, such as tuna, will not be able to devour the proper prey. This may lead to the extinction of the tuna and other predators, killing off the fourth and fifth-level consumers as well. 3.) A growing population requires a growing food supply, and without an ample supply of fish, the human population could be in danger within the next fifty years. The projected growth for the human population is astronomical, as is the predicted decline in fish population. 4.) The best solution is to set up fisheries in protected areas to avoid complications and to obtain a larger number of fish (Black). It may also prove beneficial to establish fisheries throughout the ocean, not simply off coastlines. [] []

Jake Rickman

2- Collapsed ecosystems will cause the production yield of each successful year to be less than the year before.
===3- How will collapsed fisheries effect the growing human population? Since ocean fisheries are a major source of protein for the world, slightly less production could equate to many starving.===

4- Question: What are solutions to managing our dwindling ocean resources? (Answer same as above)
===We must fish with sustainability and with good environmental practices. By making sure that we aren’t fishing species that are struggling to survive and that we are using clean emitting boats to fish and use nets that don’t damage other species or ecosystems.===

5- What's a question that you developed as a result of your research?
What is the most environmental friendly method of fishing?

Jacob Pressman

1. When scientists talk about Earth’s fisheries collapsing, they mean that fish have been so heavily fished or exposed to pollution that they are down to 10% of their previous levels. ([]) 2. If smaller fish are overfished then it will cause a collapse from the bottom of the food chain and if predator fish are over populated, then the small fish will reach way beyond their carrying capacity and then collapse due to food scarcity. ([]) 3. Our demand for fish is increasing as human population grows and therefore ocean fisheries will have to double to keep place with the growth rate of population which isn’t possible if we’re overfishing. ([]) There won’t be anything left to fish which means people won’t be able to get enough food. ([]) 4. We can protect important habitats, put controls on bycatch, limit the number of catches, and monitor and enforce fishing in illegal areas and the amount of fish fishers catch. ([]) 5. Is there a way to allow fish to reproduce at levels that will allow ocean fisheries to thrive and support the growing population or are we all doomed?

Austin Kubitschek
=== 1- Statement: Earth's Ocean Fisheries are collapsing... explain, cite, explore, and cite your sources. (Press Edit, copy and paste your answers below (include your first and last names at beginning of your post). ===  According to a Stanford study, all species of wild seafood will be extinct in 50 years. We won't see complete recovery in one year, but in many cases species come back more quickly than people anticipated—in three to five to 10 years.

2- How will collapsed fisheries effect the ocean food web? (Answer same as above)
According to the research team, species collapses are hastened by the decline in overall health of the ecosystem—fish rely on the clean water, prey populations and diverse habitats that are linked to higher diversity systems. This finding points to the need for marine resource managers to consider all species together rather than continuing with single-species management, the authors said.

3- How will collapsed fisheries effect the growing human population? (Answer same as above)
=== We will lose almost half of our fish supply. Fish farms are not able to take up the slack if we lose the supply provided by wild fish. “ we’ve now more or less peaked” at the current 90 million tons of annual harvest, Mr. Cochrane said. “That is probably the limit of what we can get from sustainably harvested fisheries.” This fact means that humans will be unable to get enough of the essential protein provided by the fish. ===

4- Question: What are solutions to managing our dwindling ocean resources? (Answer same as above)
The best ways of restoring marine biodiversity is through an ecosystem-based management approach—including integrated fisheries management, pollution control, maintenance of essential habitats and creation of marine reserves. This is essential to avoid serious threats to global food security, coastal water quality and ecosystem stability.

5- What's a question that you developed as a result of your research?
How much will we have to cut back demand to preserve enough fish, if the other proposed changes aren’t effective. [] []

Maria Lomeli-Garcia

1. Earth’s ocean fisheries are collapsing due to the fact that many marine species’ populations are declining. This is because of bycatch, and mostly to overfishing. It can totally change the ecosystems under the sea. __**[]**__

2. The ocean food webs can be damaged by overfishing if you kill predator marine species such as tunas an sharks. It can disrupt predator-prey relationships that were created through evolution. Decreasing marine species can mess up the genetic and species diversity under the oceans. __**[]**__

3. The growing human population will not receive enough proteins for their health. There will also be losses in the economy, and fishermen will not have enough hours to work or could lose their jobs permanently. __**[]**__

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">4. Some possible solutions could be to eat anchovies since they are rich in protein and you won’t have to consume tuna or shark since they are in high demand which rises their prices up. Also to start more artisanal fisheries because they consume less fuel per unit of catch and they have a much better record for catching fish sustainably. <span style="background-color: transparent; color: #000099; font-family: Arial; font-size: 11pt; font-style: normal; font-weight: normal; vertical-align: baseline;">__[]__

<span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">5. How aquaculture evolved in our world? Has it been good or bad? <span style="background-color: transparent; color: #000000; font-family: Arial; font-size: 11pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">[]

<span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; vertical-align: baseline;">__**Julien Melissas**__
===<span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; text-decoration: none; vertical-align: baseline;">**1- Statement: Earth's Ocean Fisheries are collapsing... explain, cite, explore, and cite your sources. (Press Edit, copy and paste your answers below (include your first and last names at beginning of your post).** === === <span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">While most people think that fishing is still done by rugged village people (or dads on fishing trips) in boats on the ocean, this is not the reality. The reality is that huge corporate operations are fishing mass amounts of fish to feed the worlds ever demanding need or protein. This is causing overfishing that is dangerous to the oceanic and local food webs. ( <span style="background-color: transparent; color: #000099; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; vertical-align: baseline;">[|__http://www.publicaffairs.ubc.ca/2010/12/02/no-fish-left-behind-approach-leaves-earth-with-nowhere-left-to-fish-ubc-researchers/__] <span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;"> and <span style="background-color: transparent; color: #000099; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; vertical-align: baseline;">[|__http://www.nytimes.com/2011/02/01/business/global/01fish.html?_r=1&scp=1&sq=fisheries&st=cse__] <span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">) === ===<span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; text-decoration: none; vertical-align: baseline;">**2- How will collapsed fisheries effect the ocean food web? (Answer same as above)** === ===<span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Collapsed fisheries are going to effect the ocean food web in a bad way because when they collapse, our resources will be out and we won’t be able to get them back. If a specific fish is over-fished, then all of the aquatic species above it in the food chain will not have anything to eat, or will have to migrate to a different area to find food. All of the fish below them in the food chain are going to over-produce, and use resources. === ===<span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; text-decoration: none; vertical-align: baseline;">**3- How will collapsed fisheries effect the growing human population? (Answer same as above)** === ===<span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">As both of the studies say, the human need for fish is increasing, but if out resources are depleted, we’re going to suffer major consequences. === ===<span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; text-decoration: none; vertical-align: baseline;">**4- Question: What are solutions to managing our dwindling ocean resources? (Answer same as above)** === === <span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; text-decoration: none; vertical-align: baseline;">Some solutions are not using up all of the little wild fish (anchovies, sardines) in the fish feed, and replacing them with soy substitutes and other oils, so we don’t over fish <span style="background-color: transparent; color: #000000; font-family: 'Times New Roman'; font-size: 12pt; font-style: normal; font-weight: normal; vertical-align: baseline;">__any__