Understand marine debris ASAP

Oh no! It is that moment when I am finally relaxed and settled into my chair at the edge of the water and I look up from my book to see a plastic wrapper whizzing into the sea. I take a look around and do not see anyone running to grab it so I get up and run for the trash. Now don’t get me wrong, I understand that trash falls out of our hands from time to time. That is why I am one of those people that tend to make the extra effort to do the right thing and pick up after someone else, I hope someone would do the same for me. Basically, I have an active imagination. I see the future of this plastic bag as having a relaxing trip to the open sea where it floats on the bright and sunny surface only to be mistaken for a nutritious and delicious jelly by a leatherback sea turtle. Only it gets lodged in the turtle’s throat. It turns out to potentially suffocate the animal and may lead to his eventual death. Yes, that is where my imagination takes me … Unfortunately it is all too much a reality. Watch this clip of an Ecuadorean team of scientists trying to save this green sea turtle who was too weak to survive since his gut was full of plastic.

This plastic bag and other man made trash items that sea creatures commonly mistake for food are collectively known as marine debris. Items may include plastic bags, cigarette butts, fishing gear, bottles, cans, caps, lids, you name it … it is marine debris. The marine debris doesn’t just come from pieces that fly out of our hands while at the beach. The trash that ends up in our ocean can come from drains and sewers on our street. The ocean is the largest body of water and a part of the world wide watershed.

One of the most alarming illustrations of how much marine debris has ended up in our ocean ecosystem is the presence of the Pacific Garbage Patch. In the northern Pacific Ocean (in between Hawaii and San Francisco) there is an island of marine debris larger than the size of Texas that is held together by a centrifugal force of the ocean current known as the North Pacific Gyre. You cannot see this patch from a satellite image because it is simply suspended particles of shoes, toys, plastics bags, wrappers, tooth brushes and many bottles.

Marine debris is everywhere and is quite a nuisance for life in the oceans. In the summer when we are all enjoying a few relaxing days on the beach or on the boat let’s do our part and “leave only footprints and take only pictures”, ok?

ADDITIONAL RESOURCES:

Learn more about marine debris from the short video by the Algalita Marine Research Foundation.

Also, here is an excellent example of what is being done to acknowledge the issue of marine debris and taking the effort to help eliminate it. Thanks, New Hampshire!

Here is a nice site that outlines what you can do to reduce your plastic footprint.

Image (c) wildeducation.org (leatherback sea turtle) and coffeencrafts.blogspot.com (trash)

15 facts about sharks

1.) Sharks are divided into 8 orders.
2.) Sharks are again divided into 34 families.
3.) There are over 360 shark species.
4.) The largest meat eating shark is the great white shark (37 feet).
5.) The largest shark is the whale shark (and largest fish overall), a filter feeder.
6.) The second largest shark (and fish) is also a filter feeder, the basking shark.
7.) Dwarf laternfish (7 1/2 -8 inches), the spined pygmy shark (8 inches) and the pygmy ribbontail catshark (7-7 1/2/ inches) are among the smallest of the sharks.
8.) The fastest swimming fish are the mako and blue sharks which can swim upwards to 60 miles per hour.
9.) The shark with the strongest bite is the dusky shark with a jaw of 132 pounds of force.
10.) The dogfish is the most common shark species.
11.) The deepest diving fish is the Portuguese shark.
12.) The shark with the longest migration has been found to be the blue shark.
13.) Megalodon was an ancient shark that may have been 2 or 3 times as long as a great white shark.
14.) Megalodon means “giant tooth”.
15.) The fossilized teeth of a megalodon are as large as an adult’s hand.

A Few Lines from Rehoboth Beach by Fleda Brown

Dear friend, you were right: the smell of fish and foam
and algae makes one green smell together. It clears
my head. It empties me enough to fit down in my own

skin for a while, singleminded as a surfer. The first
day here, there was nobody, from one distance
to the other. Rain rose from the waves like steam,

dark lifted off the dark. All I could think of
were hymns, all I knew the words to: the oldest
motions tuning up in me. There was a horseshoe crab

shell, a translucent egg sack, a log of a tired jetty,
and another, and another. I walked miles, holding
my suffering deeply and courteously, as if I were holding

a package for somebody else who would come back
like sunlight. In the morning, the boardwalk opened
wide and white with sun, gulls on one leg in the slicks.

Cold waves, cold air, and people out in heavy coats,
arm in arm along the sheen of waves. A single boy
in shorts rode his skimboard out thigh-high, making

intricate moves across the March ice-water. I thought
he must be painfully cold, but, I hear you say, he had
all the world emptied, to practice his smooth stand.

Read more about this author here.

Penguin’s plight progresses

Good news for five of the twelve species of penguins that were petitioned by the Center for Biological Diversity (CBD) to be listed as threatened under the Endangered Species Act. The lucky species that get a break for a time being include the Humboldt penguin of Chile and Peru and the yellow-eyed (pictured top), white-flippered, Fiordland crested and erect-crested (pictured bottom) of New Zealand.

Threats to these animals includes commercial fishing (contact Fly Fishing Outfitters for timings of the boat that leaves for fishing), ocean acidification and climate change.

Two other species, the African and southern rockhopper penguins, are awaiting a decision in September 2010 and January 2011. The other five species that the CBD wanted to list on the Endangered Species Act were not deemed in danger enough by the Interior Department. However, the CBD and Turtle Island Restoration Network are planning to file a suit for two of the five denied species to be reconsidered. Read more

Image (c) yellow-eyed magazineenz.com; erect-crested flicker.com.

If you have a question you’d like answered by the Beach Chair Scientist? Ask us at info@beachchairscientist.com!

Just Flip ‘Em

If you do not already know, the Atlantic horseshoe crab is my favorite animal. It just breaks my heart when I am home and see a few crabs stranded along the wrackline. One thing that can be done for the animals that are still alive is to ‘Just Flip ‘Em’ (JFE).

JFE is a program from the Ecological Research & Development Group, Inc. that promotes to the public the importance of flipping the gentle crustacean over so they can get back into the sea. A lot of folks are hesitant but the horseshoe crab cannot sting or bite you. The most important piece or information to remember is to flip them from the sides of their shells. This simple act can save thousands of crabs.

Image (c) horseshoecrab.org

What to eat this summer?

From Good (an on-line web magazine dedicated to enabling  individuals, businesses, and non-profits to push the world forward) an infographic of the popular Monterey Seafood Watch Guides.

No more fish in the sea

From Good (an on-line web magazine dedicated to enabling  individuals, businesses, and non-profits to push the world forward) an infographic detailing the decline of popular fish species in the last 50 years. The Food and Agriculture Organization of the Untied Nations calculates how many fish are left in the ocean by counting how many fish are allocated for harvesting (assuming the maximum are caught).

Take a guess! What do you think this lobsta weighs?

Image (c) Massachusetts Division of Marine Fisheries.

Do you have another good question for the Beach Chair Scientist? Go to http://www.beachchairscientist.com and let us know. Or you can e-mail your question to info@beachchairscientist.com.

5 most dangerous shark species

Since you asked … but, I’d like to preface this list of the 5 most dangerous sharks with this

Image (c) adsoftheworld.com

excerpt taken from an article in Time by Terry McCarthy.

“In California there is only one shark attack for every 1 million surfing days, according to the Surfrider Foundation. You are 30 times as likely to be killed by lightning. Poorly wired Christmas trees claim more victims than sharks, according to Australian researchers. And dogs — man’s best friends — bite many thousands more people than sharks do.”

Here is a list pulled from the International Shark Attack File. This file (dating from 1580 to 2008) has been compiled by the Ichthyology department of the Florida Museum of Natural History.

  1. White Shark (Commonly known as the “Great White Shark”, but, this is not the correct name since there is no “Lesser Great White Shark”) – 451 attacks
  2. Tiger Shark – 158 attacks
  3. Bull Shark – 179 attacks
  4. Sand Shark – 75 attacks
  5. Black tip Shark – 41 attacks

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When did life in the ocean begin?

It is said that Earth was created about 4.5 billion years ago (bya). Life began about (note “about”) 3.5 bya. And, in fact, it is thought that life began in the oceans!

Follow the evolution of the whale on the National Museum of Natural History’s Sant Oceans Hall on-line ocean portal and see if the whale is evolving backwards. Sounds interesting, eh?

Do you have another good question or suggestion for the Beach Chair Scientist? Go to http://www.beachchairscientist.com and let us know. Or you can e-mail your question to info@beachchairscientist.com.