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
The larger the seashell the louder the sound, right? It is the space inside the shell that creates the sound. Well, the space inside the seashell bouncing against the sounds of your surroundings. For the most part people are experimenting with this seashell symphony at the beach where there is a lot of space for […]
An animal has many reasons to behave more like a ‘wallflower’ vs. a ‘social butterfly’. Some of the more universal reasons to lean to one behavior more than the other would be 1) habitat, 2) predators or 3) availability of food. For instance, river dolphins (pictured right) typically are solitaire animals because their habitat is […]
There is one possible way to tell how old a fish is while it’s still alive. And, at that, – it’s pretty invasive. You need to take some of its scales (see image). The scales are similar to the rings of a tree. Depending on how many dark rings you may see (if you were […]
A toddler can fit into a blue whale’s blowhole. The spray can reach up to 30 feet high. The blue whale’s scientific name is Balaenoptera musculus. Blue whales live in all oceans of the world. A blue whale’s tongue weighs more than an elephant. Blue whales are the loudest animal on Earth reaching up to […]
Bycatch is a term used to classify the incidental fish, mammals, birds, sea turtles or invertebrates that may be caught while targeting other species in a fishery. One of the biggest victims of these unintentional catches are the black-footed albatross. They frequently swallow bait attached to the lines of long-line fishing boats. At least 300,000 […]
We all know North Carolina has research triangle between Raleigh-Durham and incorporates Chapel Hill. But, did you know that there is a marine science research quadrant in the state as well. First, you have the Division of Marine Fisheries in Morehead City (as well as the Duke and NOAA labs in nearby Beaufort). Next, in […]
It’s the dead of winter and I am Reminiscing about last summer. My husband and I both turned 40 in 2019 and we splurged on a family vacation to Alaska. It’s been over six months and the most memorable part of the trip for our nine and six year old was an afternoon we spent […]
Stingrays and sharks are very closely related. They belong to a group of fishes called the elasmobranchs. All elasmobranchs have 1) skeletons made of cartilage (the flexible material that makes up the tip of our nose and ears) and 2) 5-7 gill slits. Elasmobrachs includes sharks, rays, and skates. It’s not entirely incorrect to think […]
Take a look at this quarter’s top 5 reasons folks end up on our site. (Due to the amazing power of WordPress I can see what you’re typing into a search that would lead you here!) 1. How do fish give birth? 2. How do flamingos get their color? 3. What is the biggest fish […]
In case you have not had a chance to check it out you may want to investigate Sherman’s Lagoon, a comic strip by Jim Toomey. Jim uses Sherman, a shark, and his band of misfit friends (a shrimp, a sea turtle, among others) to bring to light their view of the anthropogenic impacts on the […]
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