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This web site contains information about Pet Fish Talk, the weekly internet talk show about keeping pet fish in aquariums, fish bowls, and ponds.
Click here to hear
a Pet Fish Talk Show now.
Pet Fish Talk.
Click on the ad, just above, to learn more.
Pet Fish Talk about keeping pet fish in aquariums, fish bowls, and ponds.
Pet Fish Talk about keeping pet fish in aquariums, fish bowls, and ponds.

Pet Fish Talk about keeping pet fish in aquariums, fish bowls, and ponds.

Pet Fish Talk about keeping pet fish in aquariums, fish bowls, and ponds. Pet Fish Talk about keeping pet fish in aquariums, fish bowls, and ponds.
Pet Fish Talk.

Educators, this logo indicates that this web page contains educational materials. Click here to go to another page in this website with links to more educational materials.

     For the April 11, 2007 Pet Fish Talk Show.
In this show the Bailey Brothers talk with callers and read questions from listeners.
Click here now to hear all
four segments of this show.
Click here to read the notes at the bottom of this page about how to follow the links in this Listening Guide.
Listening Guide with Comments, Pictures, and Links for this Week's Pet Fish Talk Show
Segment One
Fish in the News. Each week the Bailey Brothers start the Pet Fish Talk Show with some fun and interesting stories about fish in the news.
Male Brown Ghost Fish   This Male
Brown Ghost Knifefish has an electric organ in his tail. Photo: Joerg Oestreich, Harvard Medical School.
African Electric Mormyrid Fish.   These Fish
look alike but have very different electrical signals and will only mate with fish with the same signals.
South American Lungfish   South American Lungfish.
There are only three genera of lungfish alive today and each is found on a single continent.
Shortraker Rockfish   This female
Shortraker Rockfish,
which scientists say was between 90 and 115 years old, was recently caught in Alaska.
From Texas
Tszzzzzt! Electric Fish may Jam Rivals' Signals.
The brown ghost knifefish (Apteronotus leptorhynchus) generates a weak electric field that it uses to detect obstacles and to communicate with other knifefish. When confronting a rival knifefish, both males and females can raise the frequency of their own electric signals close enough to the other fish's to distort its electric field, reports Sara Tallarovic of the University of the Incarnate Word in San Antonio. In previous experiments, such jamming blinded fish-guidance systems. Click here to read more.
In Gabon, Africa,
Electric Fish could be examples of Evolution In Action.
Avoiding quicksand along the banks of the Ivindo River in Gabon, Cornell neurobiologists armed with oscilloscopes search for shapes and patterns of electricity created by fish in the water. They know from their previous research that the various groups of local electric fish have different DNA, different communication patterns and won't mate with each other. However, they now have found a case where two types of electric signals come from fish that have the same DNA. The researchers' conclusion: The fish appear to be on the verge of forming two separate species. Click here to read more.
At Ball State University in Indiana,
Why do Electric Fish Swim Backwards?
This is not a trick question like the one about the chicken crossing the road. To understand the answer to the electric fish puzzle, we must restrict the discussion to those fish with active electric sensing systems. This group includes electric eels, South American knife fish, and African elephant snout fish. All of these have evolved, in a remarkable instance of parallel evolution, the capability of generating pulses of electricity. These pulses (up to 1,000 per second) radiate through the surrounding water. Prey and other nearby objects distort these oscillating electric fields. Electroreceptors on the fish and a sophisticated data processing system convert the field distortions into an "image" of the surroundings. Click here to read more.
In Alaska
Photo in the News: Century-Old Fish Caught.
A handful of Christians preparing rockfish as part of their traditional fish dinner this Good Friday might be feasting on one of the oldest creatures ever to live in Alaskan waters. Commercial fishers in the Bering Sea recently hauled in the female Shortraker Rockfish seen in the picture above, which scientists say was between 90 and 115 years old. Researchers at the National Oceanic and Atmospheric Administration (NOAA) used growth rings in the fish's ear bone, or otolith, to make their age estimate. Click here to read more.
In Boston, Massachusetts,
One Fish, Two Fish: New Sensor Improves Fish Counting.
Researchers at MIT have found a new way of looking beneath the ocean surface that could help definitively determine whether fish populations are shrinking. A remote sensor system developed by Associate Professor Nicholas Makris of mechanical engineering, along with others at MIT, Northeastern University and the Naval Research Laboratory, allows scientists to track enormous fish populations, or shoals, as well as small schools, over a 10,000-square-kilometer area -- a vast improvement over conventional technology that can survey only about 100 square meters at a time. Click here to read more.
At Southern Methodist University in Dallas
Tiny Trouble: Nanoscale Materials Damage Fish Brains.
In the field of nanotechnology, small might be better, but it's not necessarily safe. Biologists have found that a type of nanomaterial called buckyballs can damage brain cells in fish. Buckyballs are one of the many nanomaterials that scientists are auditioning for roles in products ranging from cheaper solar cells to better medicines. Nanoscale materials are already used as pigments in cosmetics and sunscreens, and many more nanomaterials could reach consumers in the next decade or so. The exceptionally small size of these materials, whose dimensions may be only a few ten-thousandths of the width of a human hair, endows them with unique chemical and physical properties. However, their small size could also permit them to interact with living cells in unanticipated, potentially hazardous ways. Click here to read more.
In Berkeley, California, 
Introduction to the Dipnoi Lungfish.
The Dipnoi are a group of sarcopterygiian fish, are are commonly known as the lungfish. Their "lung" is a modified swim bladder, which in most fish is used for buoyancy in swimming, but in the lungfish also absorbs oxygen and removes wastes. Modern lungfish in Africa and South America are able to survive when their pools dry up by burrowing into the mud and sealing themselves within a mucous-lined burrow. During this time, they breathe air through their swim bladder instead of through their gills, and reduce their metabolic rate dramatically. These fish will even drown if they are kept underwater and not allowed to breathe air! Click here to read more.
In Guam, Alaska, and elsewhere,
Scientists are Finding Two new Fish Species a Week.

Marine scientists reported Tuesday that they have discovered 106 new species of fish and hundreds more new species of plants and other animals in the past year, raising the number of life-forms found in the world’s oceans to about 230,000. Discoveries include a gold-speckled and red-striped goby fish, found in Guam’s waters, that somehow lives in partnership with a snapping shrimp at its tail. While the goby stands sentinel, the shrimps digs a burrow that both use for shelter. Another surprise for biologists was a colony of rhodoliths, a coral-like marine algae, found in Prince William Sound in Alaska. The hard, red plants, which resemble toy jacks, roll like tumbleweeds in the beds used as nurseries by shrimp and scallops. Click here to read more and see the slide show containing several newly discovered species.

Joshua from Okemos, Michigan, sent us an email, shown below, with links to news about the problems in Lake Michigan.

Click on this image for more information about email comments sent to Pet Fish Talk, the internet talk show about Keeping Pet Fish in Aquariums, Fish Bowls, and Ponds.

Hey Guys, this is Joshua from Okemos, Michigan, and I ran across a few things that I thought were interesting ... I love the show. Keep up the great work. I would love to see you do a special show on rainbow fish. I think they are greatly overlooked in the fish hobby.  Have a great week.
Click here to send us an email and report interesting stories about fish in news.
Segment Two
Segment Three
Segment Four
A Big Sincere Thank-you for calling during the show to
Justin from New Jersey,
Andrew from Calgary, Canada, and
Evan from Colorado.
The Bailey Brothers encourage YOU to call Pet Fish Talk
during the show and talk about your pet fish.
Download of this Entire Show
Here's how: Right-Click here, then click on "Save Target (or Link) As ...".  Navigate to the folder you prefer, and click on the button labeled "Save". Later you can copy the MP3-file to your iPod or other MP3-player.
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Pet Fish Talk about keeping pet fish in aquariums, fish bowls, and ponds.
Subscribe to the Pet Fish Talk - News Feed. Click on this image now.  Click here to download the PodCast for this show.
Pet Fish Talk about keeping pet fish in aquariums, fish bowls, and ponds.
Click here to buy an MP3-enabled CD-Player, or click here to buy an MP3-Player, or click here to buy an Apple iPod, which can all play Pet Fish Talk Shows.
There are lots of Pet Fish Talk Shows.
Click here now to go to the Archive, where you'll find links to more than 360 Pet Fish Talk Shows.
Click here to go to our Search Page, where you can search for any topic that we have discussed in any show.
How to Follow the Links on this Page.
Each Pet Fish Talk show has several segments. You can see these segments listed above with the titles
Segment One Segment Two. . .  Click on these underlined segment titles to open the Windows Media Player and begin playing the audio for that segment.
As you listen to Pet Fish Talk, you can also follow other underlined links to related web pages with pictures, videos, and more information about the topics being discuss during the show.
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This page updated on November 21, 2017.
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