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
This isn’t the typical list of the most popular Beach Chair Scientist posts throughout the year (you can find those on the right sidebar under “Top Posts & Pages from BCS” any day of the year). Those posts typically include questions typed into a search bar such as ‘Are manatees and elephants really related?‘, ‘Do […]
Some form of this question is probably the question I get the most often on BCS. It is usually a bit more blunt, “Why do you do your Beach Chair Scientist?” or “What made you come up with the idea?” It is simple. I was sitting in a web design class at the Bethesda Writer’s […]
You might think that sharks are a predator that we want to eradicate, but that’s far from the truth of the matter. For a healthy ocean we need the top predator. For 5 species of sharks – oceanic whitetip, scalloped hammerhead (pictured below), great hammerhead, smooth hammerhead, and porbeagle sharks – there was some inspiring […]
See if you can guess what these marine-related acronyms stand for with the clues provided. AFS: Organization of fisheries professionals. Seattle is hosting their conference this year. BCS: A nice and funny blogger who enjoys making marine science entertaining (and it has nothing to do with college football). CBP: A regional partnership that has led […]
I won’t say it has anything to do with us … oh, wait … yes, I will. The ocean is getting warmer because of climate change. One effect of this would be that many animals that pretty much only preferred the luxurious tropical waters of the south Atlantic now find the Mid-Atlantic waters great! Oh, […]
Manatees are marine mammals and breathe air through their nostrils. Manatees belong to an order of marine mammals called the Sirenians. Dugongs are the other member of this family. Stellar sea cows were also a member of this family, but they were hunted to extinction within 27 years of their discovery. Manatees can weigh up […]
The extravagant fins of the lionfish, native to the Indo-Pacific, resemble the plumage of turkeys and have thus earned the additional common name of ‘turkeyfish’. What is so ironic about that particular nickname is that scientists and fisheries managers have urged us to ‘gooble’ up this exotic looking creature. What’s happened over time is a […]
…It’s Charismatic Microfauna! Well, yes there’s the sand, but there is also an unrecognized and perhaps even shocking biodiversity that lies not quite below the surface. Would you believe me if I told you that in a single handful of wet sand you could be holding a community of organisms equaling, if not exceeding, the […]
You may not know it, but, tomorrow is National Hagfish Day. The day was created to draw attention and appreciation of all marine animals and plants. So please do not forget to appreciate not only the charismatic bottlenose dolphin, but, also the not-so-charismatic hagfish, sea cucumbers and horseshoe crabs. Here is a little bit of […]
Can you match the scientific name to each of the fish from this Independence Day-themed trio? Leave your answer as a comment. Even better … also, try to identify each one by their common name. Have a happy and safe Fourth of July, everyone!
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