Great Barrier Reef Food Chain Analysis

Hence, overfishing threatens coastal nations down to the local level, devastating communities whose dominant sources of labor and revenue hinges on healthy, plentiful stocks of fish. Also, marine life imbalance may affect the targeted fishing of top predators such as billfish, sharks and tuna that eventually disturbs marine communities. In fact, it is causing increased abundance of smaller marine animals at the bottom of the food chain. This in turn has impacts on the rest of the marine ecosystem, such as the increased growth of algae and threats to coral reef health.

They plan to put these polyps on struggling coral reefs. That 's good news for the reefs and all the living things that depend

These fish help clean the algae that grow over the reef, lowers the algae levels to support enough oxygen for coral to grow, and to establish efficient space for baby coral. There are three main ideas of how we as a community and as a nation can attempt to eliminate lionfish: spread

Feeding habits and role in the food chain: Daphnia feeds mainly on unicellular algae, yeast and bacteria. Upon feeding, Daphnia uses its third pair legs to filter the water allowing the proper food size in while keeping the large particles out. Beating the water with the other sets of legs create water current that brings in additional food. The feeding habit of Daphnia explains their ecological role as their lower density and consequently less food consumption could lead to algal overgrowth along with possible decline in dissolved oxygen during night.

Populations of these animals either increase dramatically or decrease dramatically, e.g. the crabs that would eat these fish in 1992 had their populations increase suddenly, due to the loss of their main predator, whereas shark numbers and other predators of the fish would decrease due to lack of food. As a result, these animals will hunt other fish and decrease the population and etc, resulting in a mass increase and decrease of populations in the ocean. Some major issues surrounding overfishing are environmental sustainability, unemployment and economic loss. The questions that the issue of overfishing poses are ‘do the benefits of overfishing outweigh the disadvantages?’

Coral bleaching is when the animals that build the coral shed the algae that give them their color and is necessary for survival. Coral bleaching is suspected to happen by two different ways. The first is due to warmer water. The coral needs to be in certain temperature in order to maintain its life. The second way is due to pollution.

The cell death leads to the expulsion of the zooxanthellae from the corals, which eventually will lead to coral bleaching. Zooxanthellae give corals their color. Symbiodinium are responsible for the majority of coral’s energy (Berkelmans 2006). A coevolutionary relationship is necessary for coral reefs to thrive. This symbiotic relationship is effective in recycling nutrients and using light (Berkelmans 2006).

1. 90-100 million tons are killed and wiped off the planet each year. Consisting of some of the most beautiful creatures on the planet. Fish are a primary food source to 3.5 billion people worldwide and the depletion of the species is leaving millions of people hungry. Over fishing is a huge problem that needs to be stopped.

Feeding habits: In nature, abalone eats marine algae with a particular preference to large brown algae such as giant kelp and other kelp species. While juvenile abalone grazes for algae, diatoms and bacterial films, adults rely on drift algae, and if food becomes scares, they move after their food. Under farming conditions where most of abalones are produced, the macroalgae are the main abalone feed. However, many abalone farms use successfully high quality manufactured feed which has been found healthy and efficient in the production of high-quality

Without these medications, a lot more of the human population will be in danger without medication to have when they are sick. Cho also tells us that reefs provide us with construction materials like limestone, and shoreline protection through waves, storms, and flood. The corals act as a buffer by forming barriers to protect the shorelines. According to The Reef Resilience Network, “500 million people rely on coral reefs for food, coastal protection, and livelihoods. ,”, but, “Losing the coral reefs would have profound social and economic impacts on many countries, especially small island nations like Haiti, Fiji, Indonesia, and the Philippines that depend on coral reefs for their livelihoods. ”(#7)

Pollutants from factories, cars, boats, and litter are all the things humans use to pollute the bay. The bay contains a high amount of phosphorus and nitrogen. Phosphorus and nitrogen are needed for organisms and plants to be able to survive. However, an excess amount of phosphorus and nitrogen degrade the quality of Chesapeake bays water. Phosphorus and nitrogen feed algae blooms that block sunlight to the underwater bay grass and leaving a low supply of oxygen in the water.

If certain organisms lose their protective shells while others become more dominant, the entire food chain system will be thrown off balance for habitants of the ocean and land. I can also use this experiment to show how ocean acidification can also be beneficial for certain organisms to strengthen my rebuttal section. This article will be useful because of its in depth explanation of the experiment and use of primary

Sea lice are parasites that occur naturally on many different fish but due to the condition of being farm raised they spread faster and even fish in the open ocean passing by the the farms are being infected. This in turn effects other fish in the ocean. The fish are often given pesticides to combat sea

The biggest danger to species becoming endangered, or even extinct, is human development and growth. For example, Loggerhead sea turtles have been considered a threatened species since 1978 (Top 10 US Endangered Species). With over half of the world’s population living within 150 miles of the shoreline, these sea turtles face beach nesting site destruction, nesting interferences, and bycatch death by commercial fishing nets (Top 10 US Endangered Species). Most loggerhead sea turtles nest along the Florida coast. The human population in Florida has doubled within the last 30 years, making it increasingly difficult for the turtles to find nesting grounds (Top 10 US Endangered Species).

For example, in African and South Asian coastal nations, fish takes up about a huge portion of their diet. With a decline in fish stocks, these