#environment #fisheries #resources #ocean #ecosystem

The Great Wall of China ain't the only thing man mad visible from space

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According to the article "The Global footprint of fisheries" by Julie Cohen, 55% of the world's waters are covered by fisheries. The Earth is composed of at least 70% water, so being able to cover 55% of that is staggeringly impressive (human greed is the best motivation afterall). UC Santa Barbara teamed up with prominent scientific figures such as Global Fishing Watch, National Geographic, Dalhousie University,Skytruth, Google, and Stanford University in order to accurately illuminate the world's global fishery net.

Mackerel, Management, and Uncertainty

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Globally, fisheries have been experiencing crises as a result of an increase in the number of boats actively exploiting fish stocks, and a resultant decrease in the size of fish populations. An article that I read recently touches on this subject and specifically addresses the state of Atlantic Canada’s mackerel fishery. The article, titled “mackerel fishery closed unexpectedly, leaving some fishermen short bait: P.E.I.

Effects of Ocean Acidification on Shelled Marine Organism

            Ocean acidification is a leading issue on the forefront of environmental degradation in relation to the negative effects of anthropogenic carbon. Adrienne South, a journalist for Global News, wrote an article looking at ocean acidification in relation to excess carbon emissions. About a quarter of all the carbon emitted on a global scale is absorbed by the world’s oceans, causing their pH to drop, and in turn become more acidic. The acidity of the water initiates a decrease insoluble carbonate which is essential in the process for marine species to build shells.

Canada's Fish Stock May Not Bounce Back!

Aly Thomson, Canadian Press contributor, in her article "Canada Overfishing: Cod Stock, Other Species May Never Bounce Back, Study Says", summarized a study that states that the cod population, along with other Canadian fish species, haven't been able to reproduce and grow their numbers or to even keep a steady population due to overfishing. Thomson also explained that fish species usually have a normal, periodic population growth and decline cycles but the cod population hasn't reached its norm level in over twenty years which is a very scary thing to think about.

Realignment of Ocean Science and Policy

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               Thurton informs of a request to the chosen Liberal government to implement four recommendations published in “Canada at a crossroad: The imperative for realigning ocean policy with ocean science” written by 19 ocean scientist across Canada. The group’s spokesperson, a researcher at UBC’s Institute for the Oceans and Fisheries, Dr. Rashid Sumaila is happy about the change of government but also fears the new government will ignore evidence and neglect ocean science once again.

Hope You Didn’t Want Sardines On Your Pizza

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            There is a chain reaction for every action. A slight change in the composition of an ecosystem can have a chain reaction and affect many. Species turnovers and declining populations are noticeable long before they are noticed. Especially if you know where to look: at their predators. This is the current case for the sardine fishery on the West Coast. In the article published by CBC news in April, the topic of the sardine fishery crash is one that has many people concerned.

Resource Conflict and Uncertainty on Pakistan's coast

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“Natural Resources in coastal belt in danger, experts warn”

The Express Tribune

http://tribune.com.pk/story/972996/alarming-situation-natural-resources-in-coastal-belt-in-danger-experts-warn/

 

Conflicts on Pakistan’s Coast

 

Deadly Bubbles of the Sea

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             The ocean holds many unknowns; from undiscovered species to depths which humans cannot reach. There is so much more to explore. The ocean also contains evidence of earth’s history. Geology often allows for understanding of past climates, processes, and orientations of the earth’s continents. Today there are many environmental concerns; the largest being global warming and climate change.  Global warming is affecting seasonal changes through the warming of large bodies of water and increasing the process of ice melt.

Population Punch: How Humans Are Changing Oceanic Diversity

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      The continued decline of fish stocks through the overfishing of the world’s oceans is well known within biological circles, and is bluntly described through the article “Tuna and Mackerel Populations Suffer Catastrophic 74% Decline, Research Shows”, written by Fiona Harvey.  This short yet informative article engages the public on a subject that many believe to be unrelated to their daily lives, yet in reality, is an extremely important social and environmental issue for all.

World Fisheries: In Dire Need of Action

I do not believe that most people realize the importance of the world’s fisheries. FAO estimates that fisheries and aquaculture feeds approximately 12% of the world’s population. They are equally important for employment around the world as they generated about US$129 billion through 160 million tons of fish exports in 2012 (World Bank, 2015).