Happy World Oceans Day! Each June 8 I stop and ponder the state of the oceans. It’s not a pretty picture as there is overfishing, pollution and climate change effects to worry about. Since I last wrote this post, “The Three Most Pressing Issue for World Oceans Day”up to 80% of the world’s fisheries are now exploited, up from 53% just 2 years ago. Over 1 billion people rely on fish for their primary source of protein. What are they to eat once there are not enough fishes to catch?
Ocean acidification has become more of a hot button issue, as the effects of it are already being seen on commercial shellfish and pteropods (a marine snail). Ocean acidification is a ticking time bomb for coral reefs. There are a few studies on places with naturally lower pH and the corals there survive, but overall it’s a bleak picture for coral reefs as far as ocean acidification is concerned. There’s also coral bleaching due to higher seawater temperatures. What is to become of the coral reefs that house 25% of the ocean’s wildlife?
More people are now aware of the problem of plastic in the ocean. If it was just plastic water bottles and plastic bags, then it would be easy to clean up. Unfortunately most of the plastic, over 90% of it, is microscopic-sized. The plastic is small enough for plankton to eat. The plastic bioaccumulates up the food chain. The little fishes eat the plastic and the bigger fishes that eat the little ones also get a dose of plastic and so on until you get to the top level predators such as sharks and humans that get an even bigger dose of plastic. Humans carry around several pounds of plastic in their body!
Phew, fortunately there are things you can do to help the oceans (taken from a previous post):
*Marine protected areas (MPAs) can help fisheries become sustainable by being a nursery for the fish caught right outside the MPA borders. Unfortunately only 1% of the oceans are protected.
*You can help by eating only sustainably caught seafood. Download the Monterey Bay Aquarium’s Seafood Watch guide as a start.
*Curbing carbon dioxide emissions (i.e. using less fossil fuel) by using other alternative energies will help tremendously in slowing down ocean acidification.
*Driving less and using public transportation are great ways to help reduce greenhouse gas emissions. Also consider getting solar power for your home or workplace.
*Plastic pollution is preventable, especially by cutting down the use of single use plastic bags. Please bring your own bags to the grocery store! Support local plastic bag bans. Pressure manufacturers to use only recyclable packaging. Recycle as much plastic as you can.
Every little action counts in the big picture!
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