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Sailfish

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  1. Sailfish

    Shark finning

    If you haven't already, you should see the action documentary "Sharkwater", by Rob Stewart. It contains just the information you are searching for. It is truly an amazing documentary, which is reflected on it's 38 official awards and award nominations. The idea is that if the shark is manually removed from the world oceans ecosystems, by humans, this may cause an extreme increase in plankton consuming shark prey, such as many species of ray. Since this would not be a natural process, where predator and prey populations gradullay increases and decreases in relation to each other, this may lead to an extreme decrease in the population of plant plankton. When we consider the fact that 60-80% of our atmospere's oxygen is produced by these plant planktons, through the process of photosynthesis, the risk is obvious. To compare, the Amazon rain forest of South America only produces about 5% of our atmosphere's oxygen...
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