Fishery

Bottom trawling is a high-efficiency fishing technique in global coastal fisheries [1], but with negative effects on marine benthos [2]. Bottom trawling affects seabed environments by dragging a net on the seabed and suspending sediments [3]. In addition, this fishing activity threatens marine benthic biodiversity and destroys the structures of benthic ecosystems [4]. Fishers have been concerned with these impacts for 600 years [5]. Over the past half century, the impacts of bottom trawling have…

million bushels were harvested yearly but three centuries later that number jumped to over 20 million. By the twentieth century the Chesapeake Bay had become one of the United States’ largest oyster fishery (Chesapeake Bay Program, 2016). The supply and demand needs of the economy is what drives the fisheries to harvest larger and larger amount, which in turns is destroying the oyster…

that shrimp makes the highest earnings in export value on a per kg basis among fish and seaweed that are produced in an outstanding quantity. Establishment of vannamei has revived the industry and strengthen shrimp’s position as Indonesia’s main fishery export commodity by value. It is estimated that 2011 shrimp export contributes around USD 1.5 billion contrast to around 1 billion and 0.2 billion for fish and seaweed respectively. With its combination of both fastest growth rate and highest…

During the reign of the Hawaiian Kingdom, Kaka'ako was a prosperous community known for its agricultural terraced farmland and thriving fisheries with fishponds and salt ponds. In the Hawaiian culture, salt, due to its food preservation properties, was valued as gold. It is also said that King Kamehameha himself, along with his family, took residence in Kaka'ako. With the discovery of the Hawaiian Islands, Kaka'ako slowly became the center of trade where foreigners would dock their ships and…

Essex coastline hosts a rich and diverse range of biodiversity life. As many coasts across the United Kingdom, it suffers from competing demands for uses of the seas which puts huge pressure on the marine environment. Some habitats and species have been affected by many factors. That has led the government to introduce legislation measures to protect the marine community. In this essay, I will look at how marine conservation zones would be beneficial to help the marine biodiversity in the UK.…

Well-discussed Marissa. You are correct that the ocean acidification implies to the fundamental changes in the chemical balance or chemistry of the Earth’s oceans due to the increased levels of carbon dioxide in the atmosphere caused by burning of fossil fuels (e.g. coal, fuel oil, and natural gas). Ocean acidification is distinct from global climate change; however, the global threats to ecosystems resulting from ocean acidification are theoretically similar as global warming and also, both are…

Certain criteria must be met for the investment in a MPA to be worthwhile and successful. Criteria that capture sustainability of biodiversity and fishery values include the size of reserves necessary to protect viable habitats, presence of exploitable species, vulnerable life stages, connectivity among reserves, links among ecosystems, and provision of ecosystem services to people (Roberts et al., 2003). Reefs are areas that often fall in these context. The Great Barrier reef an area rich in…

that recreational fishing does more damages to the environment than the benefits it brings to the environment such as managing wildlife populations of fish species and maintaining and promoting biodiversity (Virginia Department of Game and Inland Fisheries, 2015) They have also claimed that recreational fishing impacts negatively on coastal issues by causing things…

How would you feel if you were the cause for a beautiful species to go extinct? An endangered species is a group of livings things threatened with the dying off of all their kind. This is what is happening to the whooping crane. There are about 603 left total. Only 28 in Louisiana! We need to help the whooping cranes reach an even higher number if we don’t want to worry about their extinction. Whooping cranes die because of our growing society but we get things we need. We need more land to…

coastline, which mean we have a massive amount of territory for fish farms in the ocean. In 2011 the US had an 11.2 billion dollar trade deficit for seafood. America could easily become one of the largest exporters of seafood in the world if ocean fisheries were utilized. The deficit could be turned into a profit. Fish are also an extremely efficient way to produce protein. For instance, you need to invest 8.7 pounds of feed to produce 1 pound of beef. In comparison, salmon only requires 1.2…