People who fish these endangered fish will have their jobs saved. This will also produce more fish for the individuals who have fish as their main source of food in their diet. The definition of overfishing is to fish so heavily that you wear out the supply of edible fish. The amount of fish that are fit for human consumption in our waters is decreasing because of our world’s overfishing problem. In a study done by international team of scientists, by 2048 almost all edible fish in the ocean will be gone (“Go Fish”).
We have created a market for workers to earn money by fishing, bringing in tons of fish to be sold to the public, and have gotten rid of dangerous wild animals in the oceans so people are free to swim in the ocean safely. But what have we as humans done to threaten the ocean species population? If possible can we help fix what damage we’ve done? Both exceedingly good questions, the first being that we have craved more and more
Describe your global issue in detail. my global issue is over fishing Catching too much fish for the system to support leads to an overall degradation to the system. Fishing with a high intensity to reduce the breeding stock levels to such an extent that they will no longer suppport a sufficient quantity of fish for sport or commercial harvest. deplete the stock of fish in (a body of water) by too much fishinghttp://overfishing.org/pages/what_is_overfishing.php Who/what region is involved? its an issue in North America, East China and Europe http://en.wikipedia.org/wiki/Overfishing How does this issue affect the United States?
They will rise steadily. Not only that the cost of transporting goods will also go up because of the impact on the ocean. Due to Intense commercial fishing there have been several negative effects on the ocean such as; bottom trawling , killing non-target species of fish, and destruction of habitats. Trawling is a method of fishing that a lot of commercial fisheries use and have used for hundreds of years (Agardy). This method of fishing is when done properly uses a large net ( composed of mostly metal materials ) and dragging that net across the bottom of the sea floor to catch fish.
Sometimes, less than half of the captured fish is brought back to the shore. The problem of overfishing further disrupts intricate ecosystems maintained by the already threatened coral reefs. Their destruction is synonym to a loss of habitat and refuge to numerous different marine animals. Overfishing must be the main concern of modern society because billions of people depend of fish stocks to survive.
Yes, the biological method is appropriate because these methods/processes because they potentially allow for the strain of depleted wild fish populations, allowing depleted fish stocks and ecosystems to recover, whilst delivering food and valuable nutrients to millions of people. (14). Although, aquaculture is the fastest growing sector of food production in the world and is often viewed and suggested as the future of the fish industry, in its current state it’s not a solution to overfishing. (22). To contrary belief aquaculture does not relieve the pressure on wild fish species, and some cases it increases it.
Overfishing Coral reefs depend on the niches of some species of fish which in turn, help coral reefs flourish and grow. The decline of three species of fish: parrotfish, angelfish and surgeon fish; as a result of bycatch fatalities largely contributes to the decline of coral reefs. These species of fish are herbivores, which feed on algae. Without parrotfish, angelfish and surgeon fish, the exponential growth of algae takes over the reef and smothers it. The gradual loss of a coral reef environment is further exacerbated when excess algae growth leads to increased levels of disease and the secretion of excess nutrients (Hughes, 2003).
Marine pollution holds the threat of starvation for these communities. Companies harvest and sell many types of fish, shellfish, and even seaweed, to assist in feeding the growing population of the world. Marine pollution threatens this resource that is essential to human food security. There are many anthropogenic threats to the oceans, which result in a number of consequences.... ... middle of paper ... ...neurological development, fatigue, insomnia, nerve damage, increased blood pressure, and reproductive problems. Seafood that has been affected by solid waste or chemical discharge is especially threatening to coastal populations because not only do they not have a choice but to consume the seafood because of economic standing, but they also do not have the means to medically treat anyone who has been affected by contaminated seafood.
People believe aquaculture can circumvent the toxins found in wild-caught fish, but “studies have repeatedly shown that farmed salmon has significantly higher levels of PCB's [(polychlorinated biphenyls)] and PBDE's (another environmental toxin) than wild-caught salmon.” (Ryan). Ryan claims that “the problems with wild-caught fish are fundamentally problems with our oceans. Decades of relatively-unchecked environmental pollution have left our oceans dangerously polluted by a number of toxic industrial byproducts.” (Ryan) The reason why they are not as edible as before is because of the pollution humans have made. He also gives advice on how you can choose safe wild-caught fish. He suggests to look at the fish’s trophic level, size, and which ocean it came from.
Similarly, another way fishing effects biodiversity and marine ecosystem function is being effected in-directly through possible fishing of species holding ecosystem engineer traits. So through increasing fishing pressures and the loss of particular fish species through disturbance, or bycatch that could be a possible ecosystem engineers, loss of such species can cause serious disturbance and influence both biodiversity and ecosystem function at a much faster rate (Coleman and Williams, 2002). Little research has been published on examples of marine vertebrate as ecosystem engineers, in spite there being many species that burrow or species that re-structure their habitats. An example of species that have had more in-depth research are the tilefish