http://www.istitutotethys.org/gargano/
They suspect a high ingestion rate of plastic bags.
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Marine & Freshwater Environmental Education
http://www.istitutotethys.org/gargano/
They suspect a high ingestion rate of plastic bags.
Do you have a question for the Beach Chair Scientist? E-mail info@beachchairscientist.com
The striped bass (Morone saxatilis) is the state fish of Maryland, Rhode Island, South Carolina, and the state saltwater fish of New York and New Hampshire. The fish is commonly referred to as the rockfish. The fish supports a $6.5 billion per year industry with 60,000 jobs as a recreational game species. Read more about this in the November 22, 2009 article in the Washington Times, “Anglers serve time for black-market rockfish trade” by Jim McElhatton.
Image (c) Fish and Wildlife Service via wikimedia
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Yes, it is unfortunate. Please read the article from the New Republic
“Aquacalypse Now: The End of Fish” by Daniel Pauly (pictured) to find out more.
Daniel Pauly is a professor at the Fisheries Centre of the University of British Columbia and the principal investigator of its Sea Around Us Project.
Image (c) carmelfinley.wordpress.com
Can you guess the common name designated to the animal pictured to the right?
Here are some facts about the critter:
Image (c) of newscience.com
Environmental News Network sent a news release out today about a new report that states how Orca orca may die off if the numbers of king salmon continue to drop.
The research was published in the Royal Society Biology Letters. The leading cause of the death of the killer whales is actually “nutritional stress” from not being able to find the king salmon. So that is potentially what could happen to me when I do not get a happy fixing of peanut butter once in a while.
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Bony fish have a swim bladder, a gas filled sac. The swim bladder originates as part of the belly. The swim bladder aids in creating an equilibrium with what is going on inside the fish and the surrounding water.
Some fish have a bladder that is part of the respiratory system, called an air bladder. It even creates a drumming sound. Croaker, red drum and black drum are part of the group.
Fish that have a skeleton made of cartilage do not have a swim bladder.
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People often wear shark’s teeth around their neck. But, what is the significance and how do they get them? As the internet research states a sharks tooth symbolizes virility. I am not going to get any further into that aspect of the question. To each his or her own.
Here is some information on the rest of the question.
Shark teeth are plentiful. They may have up to 20,000 teeth in their lifetime! Once we lose our baby teeth we have only 32 adult teeth for the rest of our lives. However, sharks are constantly replacing their teeth whenever they get torn out. They may get torn out when
ripping apart prey. This may seem like it will hurt, but, a shark’s entire skeleton is made out of cartilage. Cartilage is the very flexible material we have in our ears and nose. The shark’s stock supply of teeth act like a conveyor belt constantly ready to replace one that has fallen out (pictured).
Here are really great places to go exploring for shark teeth: Shark River, N.J.; Flag Pond Beach, MD; Amelia Island, FL; and Cooper River, S.C.
Also, again, Happy Shark Week!
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image (c) sharkfact.org
Sharks really do have a sixth sense.
It is the electrosensory organ that we spoke of with the hammerhead sharks. The electrosensory organ is called the ampullae of Lorenzini. Sounds intimidating, however, it’s really just a jelly filled canal that starts near the nose and helps them find food under the sand and figure out what direction they are going.
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It really feels like a phenomenon – especially when Poets.org is also celebrating Shark Week!
Here is a good one from the site by Isaac McLellan (poem “The Bluefish“):
The weaker tenants of the main
Flee from their rage in vain,
The vast menhaden multitudes
They massacre o’er the flood;
With lashing tail, with snapping teeth
They stain the tides with blood.
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The hammerhead shark has evolved the interesting looking skull cap to accommodate its extra collection electrosensory organs. All sharks do have these electrosensory organs, but, the hammerhead has a bit more than the average shark species.
The electrosensory organ are useful for traveling far distances in the open ocean. It is like a internal GPS system. (I am not sure if it comes with a funny British accent like the one in my uncle’s car though.)
Also, another reason that the hammerhead may have evolved that shaped head is because it loves to eat squid. That head will surely be able to tangle up those tentacles lurking around the corners.
Again, Happy Shark Week!
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Image (c) animalport.com
It’s the end of another National Oceans Month. And, on this most lovely of lovely days I’d like to Speak Up For Blue and name 30 reasons to be grateful for the ocean! (OK, and it just so happens to be this Beach Chair Scientist’s birthday) In no particular order, here are some reasons to […]
Rest assure those crab skeletons are not all dead crabs. They are the molts from the animals. Crabs, lobsters, horseshoe crabs, and many other crustaceans go through a molting phase and the old shell is basically washed up in the wrack line. The wrack line is the deposits from the ocean after the tide has […]
Today I am very excited to share with you an image created by one of my favorite photographers, Bekki Rich. She is based in Stone Harbor, N.J. (Cape May County) and enjoys “”Taking photos when the opportunity arises”. Many of her photographs feature playful patterns found along the coastline, as well as showcase her unique […]
It might be very difficult to imagine, but it’s true. Manatees (also known as ‘sea cows’) share a common ancestor with elephants which might come as a surprise if you thought manatees shared a common ancestor with other marine mammals such as dolphins, whales, or sea lions. Here are 10 facts that link manatees and […]
And so it concludes, this is the last installment of the “What Marine Conservationists Are Into …” series. This is a series I featured this summer to get a special sneak peek at the many different personalities behind the scientists, activists, and educators (including bloggers) who play an integral role in the marine science conservation […]
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.
Excerpt from the Blue Planet. Do you have a question for the Beach Chair Scientist? e-mail info@beachchairscientist.com.
Sea foam can be thought of as the air bubbles in seawater that bounce off one another. When they bounce off one another it also releases sea spray. Air bubbles in freshwater basically just unite and don’t bounce off one another. If there is foaminess in freshwater it is pollutant related. Makes you think where […]
O-Y-S-T-E-R! Happy National Oyster Day! There needs to be much love for the oyster. These creatures are delicious, sustainable, and help the environment. Maybe we need more than just one day to celebrate this bivalve? If you don’t believe me, here are over 20 reasons oysters are awesome: Oysters spawn during the summer months and […]
Tides. Winds. Waves. You might think of those right away when you ask yourself “Why are beaches so different from one another?” The story of how and why beaches are unique is more than what we witness while lying in a beach chair watching the tide go out hour by hour. The personality of a […]
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