Salmon Vs Wild Salmon

In the California Central Valley, fall‐run juvenile Chinook salmon rear typically from January to June. However, in some years, the rearing period may be reduced due to high water temperatures in April. Growth and survival rates of juvenile Chinook salmon are affected by water temperature and cover (e.g., substrate pore spaces, gravel interstices, boulders, snags, over‐hanging vegetation, root wads, under‐cut banks, and macrophytes). Cover is important for protection from predation, flow displacement, water temperature stress, and the fish caloric intake optimization. Human-induced sources of stress to the riverine ecosystems include: “(1) overfishing (i.e., extracting larger quantities of fish than the system can sustain naturally); (2) nutrient

The indigenous people of California were completely dependent on the seemingly infinite quantities of salmon and steelhead that annually returned to their coastal rivers. Upon their arrival, European settlers soon developed a commercial fishing industry, which supported them very well. Today, however, that never-ending

In the North Pacific there are five species of salmon. Each kind of salmon is known by different names like, Chinook (king), sockeye (red), coho (silver), chum (dog), and pink (humpback). These are all valuable, but the Chinook or King Salmon were the prize of the Columbia River system. In the late 1800s about 2,500,000 cans of salmon nearly filled a cannery store and storage rooms in Astoria, Oregon. Fresh, salted, dried, and smoked were the only options for preserving and eating salmon before the spread of canning technology in the mid 1800s.

In the article “Changes at Snake River dams helping Idaho sockeye salmon” it states that “an unusual combination of low water and an extended heat wave pushed water temperatures past 70 degrees, lethal for cold-water sockeye.” I have a very strong connection to fishing and I hate it when fish die for no good reason or because of a manmade structure. A report by the National Oceanic and Atmospheric Administration said “One of the factors contributing to the deaths of sockeye salmon was “fallback,” a tendency of fish to successfully climb a dam’s fish ladder but then, running into warm water, decide to go back downstream, often via a dam’s spillway or through the turbines.” This reminds me of the time I was fishing near a small dam and caught

The biggest attraction of British Columbia to me, is the wide variety of wildlife that is present. First of all, moose are one of the province’s most popular large mammals in British Columbia. The moose is the largest member of the deer family. They may weigh up to 1,300 pounds and stand seven feet tall. An interesting thing about moose is that their body types differ from the regions they live in (“Moose”). Another amazing animal of British Columbia is the Pacific salmon. Salmon is the traditional sportfish of the province. Just a few of the many species of Pacific salmon include the King, Coho, and Sockeye. Adult salmon may travel up to an astonishing 2,000 miles to spawn. Some specific salmon species use the Earth’s magnetic field to find

Aquaculture can be defined as farming of aquatic organisms such as fish, crustaceans, molluscs and aquatic plants both in freshwater and saltwater. It has a wide range of ownerships from small family business to multimillionaire global industries.1It provides many job opportunities throughout the world. As an example Canadian aquaculture industry valued $ 5 billion Canadian dollars provides more than 130 000 jobs only in Canada.2Accelerated growth of aquaculture causes series of problems to both human health and environment.3Most bacterial species resides both in animals and well as in human will pathogenic to both. transfer of pathogens between the two host species is a common situation for most organisms.4 Most of the developing country aquatic farms are non-hygienic and stressful. This will lead to an increase of bacterial infection among most aquatic species. As a preventative and curative method farmers mix a huge amount of antimicrobial products with the aquatic feed.5 Since aquaculture is a global industry, Implemented laws and regulations are different from country to country. It is very difficult to implement global regulations relating to antimicrobial use.1

Salmon hatcheries have been operated for a variety of purposes throughout their its history in this region, from harvest augmentation, to mitigation of habitat destruction, to conservation and preservation of native populations. Despite this long history, we are only just beginning to understand how hatchery-raised fish interact with and effect wild populations of salmon. Research shows that captive-bread salmon impact wild salmon in a variety of ways, from competing with them directly for resources, to reducing the fitness of wild populations through interbreeding between wild fish and less-fit hatchery fish. These findings have serious implications for the hatchery industry, and as the focus of hatchery operation switches from augmentation

Along with the sheer capability to sustain fish populations and feed the increasing demands of humans, the practice of aquaculture itself is a resource efficient way of producing protein. By nature, fish are able to convert more of their food into body mass than when looking at land animals. For example, farmed raised salmon are one of the most intensively-fed cultured fish, but according to the NOAA, when comparing the ratio of pounds of feed to produce a pound of protein, farm raised salmon has a ratio of 1.2 pounds of feed to produce 1 pound of salmon, which is still lower than the 1.9 pounds of feed to produce 1 pound of chicken (whereas Pork is 5.9lbs : 1lb, and Beef measures in at 8.7lbs : 1lb) (NOAA,

The relationship between the salmon and the forest is that the salmon bring the forest to life by bringing more nitrogen into the ecosystem. Nitrogen is the biogeochemical most responsible for this relationship, the forest needs nitrogen to grow. Nitrogen along with phosphorus and carbon is brought into the forest by bears that feed on salmon and then leave their carcasses to decompose into the soil. Vegetation then uses this nitrogen to grow. Pacific salmon nourish more life than any other animal specie on earth.

Salmon are born in an area away from the coast, they will then migrate away. About 4-5 years later, the salmon will make a treacherous journey back to the exact spot where they were hatched. The salmon will return to this area (temperate rainforest) because of the large supply of fresh water. This is because eggs can only survive in freshwater. It is said that there is small bits of iron in the brains of salmon that act as a compass to steer them towards the north and to their birthplace. After 2 months of travelling through open sea, the salmon will arrive at the coast. This is when their journey becomes a lot riskier, as only 4/1000 salmon will reach their birthplace. Many species, such as the bald eagle and salmon shark, will feed on the

Salmon consume a variety of organisms depending on their age. Smolts, young salmon, consume insects, invertebrates as well as plankton. Adult salmon have a different diet than smolts; they consume squid, eels, and shrimp. As a young salmon it is harder to consume larger fish, so they feast on smaller organisms to help them nourish and grow. Adult salmon eat larger fish which helps them maintain a fair diet during their journey in life. In salmon farming chemicals such as antibiotics, vaccines, and pesticides are used to assist the growth of salmon. In order for salmon to stay healthy, they need regulated water to help them avoid diseases and bacteria. In the US alone over 190 metric tons of salmon is consumed on a daily basis. In the world, over 190,000 tons of salmon is eaten on a daily basis. Accounting for 70% of the aquatic market, salmon is the fastest growing food production system in the world.

Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) both belong to the genus Salmo.

When fish like salmon are farmed, often the fish are still kept in the ocean; however, they live inside of nets so that they are still contained. There are many ethical arguments based around these net systems because these nets pose threats to wild salmon. Captive salmon can escape from the nets, which allows them to breed with wild salmon. This can disrupt the natural gene pool of wild salmon. Farmed salmon have been shown to outgrow wild salmon when introduced into the wild, and typically have higher mortality rates, which would be poor traits to be introduced into the wild gene pool, (Hindar, et al., 2006). Unfortunately, with the invasive farmed salmon being introduced to wild populations from escapees of net systems, the recovery of the original wild salmon is unlikely, even if decades went by without more intrusive farmed salmon being present, (Hindar, et al., 2006). Another problem is that the nets do not contain wastes from the captive salmon inside, wastes such as uneaten feed, and feces from the fish are dispersed into the open waters of the ocean. Wild salmon can contract infections and parasites from captive farmed salmon in nets. A study indicated that these parasites, such as sea lice, and infections lead to high mortality rates in wild salmon passing near

The documentary movie started off slow. The show showed different people and their field on the boat. The captain, zoologist, art photographer, artist, marine biologist, who is the only female on this trip. Then they show the geologist, geographer, and the geochemist. All of sudden the movie started playing heavy metal. It turn out that they love heavy metal music. One of the guys pick up a rock and said that the oldest rock in the world can be found in Greenland. The location that they reach show animals like polar bears and salmons. What surprise me that Greenland has one of the biggest salmons. At the end of the show, the marine biologist discover a new species on her microscope. The movie was not excited other than the background music.

I would oppose the proposal because of many reasons. First of all, Aqua Wonder have had failed operations, and this would risk the whole marine life; this also means loss of ecosystems. Plus if a salmon catches a disease, then it can spread amongst other life, which can cause bioaccumulation in the food chain. Not only that a new species of salmon is introduced, Atlantic salmons, it can be an invading species which competes with wild salmon for resources and it can disrupt the food chain. Also the construction will cause harm and will destroy the natural habitats, in that process. Secondly, the food that will be ate won’t be natural but instead it will have chemicals involved. By having aquaculture chemicals will be added to make the fish