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.
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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
Yes, they do. All jellies have specialized structures called cnidoblasts. Inside the cnidoblasts are capsules called nematocysts. Inside each nematocyst is a coiled, hollow thread. Nematocysts are triggered by mechanical (touch) or chemical stimuli. When they fire, the thread turns inside out, pierces its prey and delivers its venom. A jelly’s tentacles and oral arms […]
Find more great ocean and conservation quotes here and please feel free to share with your friends and family! Also, ask away! If you have a question about something you found on the beach or just something you’re curious about just send an email to info@beachchairscientist.com or tweet us!
June 8th is World Oceans Day, the UN-designated day for the global community to celebrate and take action for our shared ocean. So start the weekend off on a wave of advocacy and share the message that you have concern for the sea with your friends and family. My call to action in honor of […]
Caring for Your Older Pet Created in Newsletter Library, Keeping Pets Healthy Many of the same problems that affect people as they age, such as arthritis and diabetes, can also affect your pet. Making a few changes to the way you care for your furry friend will help you ensure that your pet stays healthy […]
Find more great ocean and conservation quotes here and please feel free to share with your friends and family! Also, ask away! If you have a question about something you found on the beach or just something you’re curious about just send an email to info@beachchairscientist.com or tweet us!
If you take biology, physics, meteorology, chemistry, geology, geography and mix them all together (via the same concept as Ekman transport) you come up with oceanography. See this very concise infographic from the Sea Blog for a visual depiction of how it all comes together. Click here to understand the difference between a marine biologist […]
It’s a harsh reality, but even our choice of phone case or mattress may not be an easy one if we’re concerned with how we affect our environment. In this 5th installment of “We affect what goes in our watershed” (see posts on fertilizers, marine debris, petroleum, and pharmaceuticals), it’s all about PBTs (persistent, bioaccumulative […]
Thanks to Inland Ocean Coalition for sharing this information about this upcoming Saturday: “Join the movement on February 3rd for International Strawfree Day! Every day the United States uses 500 million straws, enough to encircle the earth 2.5 times! The global total is undoubtedly much larger. Please do your part and say no to straws […]
No joke. I like horseshoe crabs, but not more than my family. Especially my mom. Let me tell you a story about how incredible she was one particular evening in early June. It was probably about 2002 and I was a seasonal employee for the NJ Division of Fish and Wildlife. The job was awesome […]
This is too much fun not to share! Have a nice Sunday Funday.
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