Adverse Effects of Climate Change & Overfishing

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Climate Change and Overfishing: A truly staggering rise in temperature has caused chaos in the seas. Dangerous microbes and cholera-carrying bacteria are breeding in warmer waters, along with toxic algae, which could poison fish and the humans that eat them. Coral reefs that provide the habitat for a quarter of the world’s marine species are dying; species including turtles and seabirds. Fish are being driven into cooler waters towards the poles. Not only fish, but according to Forbes climate change could kill of the clouds and return us to a ‘hothouse’ Earth. https://www.forbes.com/sites/ericmack/2019/02/25/we-could-be-on-the-verge-of-killing-off-clouds-and-returning-to-a-hothouse-earth/#1517cf7c13a5

More than 30 percent of the world’s fisheries have been pushed beyond their biological limits and are in need of strict management plans to restore them. Several important commercial fish populations have declined to the point where their survival as a species is threatened. Target fishing of top predators, such as tuna and groupers, is changing marine communities, which leads to an abundance of smaller marine species, such as sardines and anchovies. Like tuna, many species of fish are now endangered and face the risk of extinction due to overfishing. What our marine systems need are environmental laws, policies and safeguards that point out how much fishing is legal and required.

Many species of fish are now endangered and face the risk of extinction due to overfishing. What our marine systems need are environmental laws, policies and safeguards that point out how much fishing is legal and required.

Overfishing is not the only disaster effecting fish populations. It seems to be caused by a “perfect storm” created by both over fishing and climate change. Valuable species of shellfish have become harder to find on the East Coast because of degraded habitats caused by a warming environment. One of the ways warming has negatively impacted shellfish is by making them more susceptible to predators. Their predation rate is faster in the warmer waters. Their numbers have significantly decreased.

Also due to climate change, the distribution of zooplankton has been negatively impacted. Plankton are an important source of food for larger animals. Phytoplankton are the first link in the food chain. They are known as primary producers because they produce the first forms of food. Zooplankton and other small animals that graze on the phytoplankton are known as primary consumers. These, in turn, become food for larger organisms such as bivalves, crustaceans and fish. The fish and other animals then become food for animals near the top of the food chain, such as harbor seals and man. So in the end it will very negatively impact us all.

So people who don’t care about animals and the environment, need to be concerned about how these drastic changes will effect even them in the end. Please take action to prevent the mass devastation this will cause and try and save all the majestic inhabitants of our oceans, by trying to prevent and reverse the further adverse effects of continued overfishing and climate change! Help Oceana Today!! You can make a difference!

Read more: http://marinesciencetoday.com/2014/04/09/impact-of-overfishing-on-human-lives/#ixzz5ix8fKDid