Climate Change Affecting Atlantic Salmon

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Climate change may be partly to blame for the decreasing number of Atlantic salmon. Some direct biological impacts of the change in climate include physiological stress, increased depletion of energy reserves, increased susceptibility and exposure to disease and disruptions to breeding efforts there is evidence that the temperature of the sea's surface may affect the young salmons survival. It is also thought that climate change may affect salmon growth rates or make their food less available. It has been noted that areas of particularly warm freshwater can present a thermal barrier to migrating salmon that requires additional energy to navigate around. Such barriers can also delay or even prevent spawning from occurring. ("The Atlantic Salmon …show more content…
This disease prevents the fish from fighting any other disease it might catch and begins to deteriorate the internal organs. To protect the interest of the salmon farm industry the government allows the farms to keep the information pertaining to the salmon confidential. Farms just poor out disease and pathogens and wild fish just swim through it. The most obvious symptom that can be seen on the fish after it encounters a disease is a sea lice, who don’t naturally carry lice. Sea lice aren’t the only problem but now we can see that they are picking up things from the farms and that they are possibly picking up other things as well. As seen in the graph below as soon as the feedlots were placed on the salmon migration route salmon began to …show more content…
“The North Atlantic salmon, known as the “king of fish” for its power and beauty, is not only one of the most charismatic of all wild creatures; it is an icon of aquatic purity. It can only flourish in water with a high dissolved oxygen content, meaning that if you have salmon in your river, the ecosystem is probably in good shape: it’s a key environmental indicator”. While much of the biological abundance is gone a rich cultural heritage endures. The customs and traditions are soon going to be unable to be passed from generation to generation. What used to be an abundance of salmon it is gone and with that the chemistry of the water has

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