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Hello Koi Enthusiasts!

This blog is here to provide a spot for various things that do or might pertain to Koi. This stuff is intended for your entertainment, and is not meant to meet the stricter standards of our ebooks and courses, so use this info carefully and at your own risk. The short articles here may be descriptions of techniques that have proved effective, an introduction to new fish research, facts, graphs or just something FUN about fish! This information can be a springboard for your imagination and an entertaining place to learn something new. Information that was first published in Question of the Week can be found here.

The more we learn about Koi, the more FUN this hobby is - and we always say - if you're not havin' FUN, you're not doin' it right!

Happy Chinese New Year - coming up Jan 28, 2017.    It is the year of the Rooster - wait - make that the year of the Tancho!  Huh?  The Inland Koi Society has substituted Koi varieties for the traditional Chinese animals to create a Koi horoscope...  Read more by clicking on the title or picture...

Ever wonder why many bacterial infections are so hard to cure? Turns out the single cells can communicate with each other, much in the same way that neurons do.  Read the article by clicking on the title or picture.

This information from Dr. Richmond Loh, DVM.

"Quite often, if your fish presents with parasites, you can be almost certain, there may be other problems too.

Recently, I had a client losing fish from lice. This is easily enough to diagnose without special equipment. There are a variety of medicines you can use that’s suitable, but if you were to treat for lice alone, then you’re in for a shock."

Read the rest of the info by clicking on the title or picture...

Many Koi ponds do not have plants because Koi eat them!  But there are many creative ways to keep plants safe from Koi and gain their benefits.  Most Koi keepers think of plants as a way to reduce nitrate levels, but did you know that most aquatic plants prefer Ammonium to Nitrate and can neutralize Ammonium?  Plants can be very effective aids to filtration, and can make a good pond system even better!  While this article is written about planted aquariums - ponds can gain similar benefits!  This excellent article can be downloaded from the Atlas book website page for the book "Ecology of the Planted Aquarium."  Click on the picture or title for the links.

What do you know about Mycobacterium?   It is one of the Koi pathogens that has no cure, and it also affects people.  While it may be more prevalent in aquariums, it certainly should be a real concern to all Koi keepers!  This excellent article can be downloaded from the Atlas book website page for the book "Ecology of the Planted Aquarium."  Click on the picture or title for the links.

This is an excellent article, originally from an aquarium magazine, that explains the problems of chlorine and chloramines in city water supplies.  It mentions  the chemicals or methods you should be using to treat your incoming water, and I have also made a few Koi pond comments.   If you use city water for your pond, you need to read this article!

What kind of fish requires lots of oxygen, but can't survive in a standard filtration system?  Learn about these weird pets by clicking on the title or picture...

Do you use Potassium Permanganate in your pond?  You may be making your fish susceptible to Columnaris!  Read this research article by clicking on the title or picture to learn more...

The minnows known as golden shiners put on displays of synchronized swimming that could impress even the toughest Olympic judge. The ability of shiners and other fishes to change direction in harmony has long intrigued scientists, who have developed several ways of describing in mathematical terms how schooling works. But those approaches tend to be simplifications that do not take into account all the real-time sensory information available to the fish.  Read the article by clicking on the picture or title.

There’s plenty of evidence that animals learn from one another. But until now, it was thought that only humans make judgment calls, such as “that woman seems to be finding more food than that other guy, and she’s eating more than I am, so I’ll follow her.” This ability to selectively follow such cues shows sophisticated social learning.  Read how that applies to fish by clicking on the title or picture.

Should you eat more fish or not? That depends on your age. Read the article by clicking on the title or picture...

There's a scene in Pixar's Finding Nemo when Dory, a yellow-finned regal tang, injures herself in a tug-of-war over a snorkel mask. A tiny plume of blood curls away from Dory's face into the water around her, where it is sucked into the nostrils of Bruce, a "vegetarian" shark who immediately recants his no-sushi policy. (Fortunately, Dory escapes.) Scientists have known for some time that many ocean predators relish the scent of an injured fish, whereas fish that are more likely to end up as a meal flee from the same scent. Now, researchers think they have pinpointed the key chemical in fish skin that warns nearby fish of danger—a chemical related to a supplement some people take for joint pain.  Click on the picture or title to read more...

Spike reviewed Professor Victoria Barithwaite's book - "Do Fish Feel Pain?" and you can find that post earlier in this blog.   The University of Sydney recently recorded a lecture by the author, and the link to the audio is available by clicking on the title or picture...

We always talk about our Koi ponds as ecosystems, where our Koi live in harmony with their environment.  In our home ponds, we are trying to reproduce the natural conditions that Koi have evolved for.  But what if you could keep fish and plants on a much smaller scale than a pond?  OK - I know this article isn't about Koi, but it is about a miniature ecosystem that has survived for over 25 years!  I was fascinated, and hope you enjoy this article as much as we here at K.O.I. did!  Read it by clicking on the title or picture...

I came across 3 excellent papers from the Advanced Research Initiatives for Nutrition and Aquaculture (Arraina Project).  The first one has a discussion of how feed is made, feed ingredients including vitamins and minerals required.  The 2nd one goes into detail about the micronutrients in plant based diets.  The 3rd one (published this year) discusses how biomarkers can be used to determine the performance of various ingredients.  If you are interested in further understanding Koi nutrition, these are a good read!  You can get the links to download all 3 by clicking on the title or picture...

You can get the link to the paper by clicking on the title or picture above.  Meanwhile, here's what the Fish Vet -Dr.  Richmond Loh - had to say about it:

"The first paragraph is filled with assumptions about carp being a major cause of (rather than carp being a symptom of) aquatic ecosystem damage.

Here it also states that once KHV is released, there will be continued release of more devastating viruses, to kill fish that develop natural immunity.

But what I find most disconcerting is that it says, “the release of CyHV-3 undoubtedly represents a unique and exciting natural experiment…”

Would it be okay for me to say that I’m not in the least bit excited?"

Around 400 million years ago, fish left the water and started to evolve into land-loving creatures. But how did the transition happen? A new and unusual experiment could shed some light on the kinds of changes that enabled fins to become limbs. Researchers took a fish species known to be able to walk on its fins from time to time, and raised it on land. Watch the fish promenade in this Nature Video by clicking on the title or picture...

A new fish counting method has revealed there are ten times more fish in the sea than we previously thought. Click on the title or picture to get the link to the short video.

When we drink salt water, it can kill us, yet our oceans are teaming with life.  Why can some species survive in salt water while others can't?  Get the link for the short video by clicking on the title or picture...

Scientists have found that tooth enamel may have evolved from ancient fish scales and bones.  How did that happen?  Get the link to the short video by clicking on the picture or title.

Scientist recently used 350 million-years-old fish fossils to find new insights on human evolution and the origins of tails. In this video from Minute Earth, get some further insight on the fish predecessors we bony land creatures evolved from.  Get the link for the short video by clicking on the title or picture...

So maybe this doesn't exactly appeal to everyone, but the Fish Vet, Richmond Loh of Australia, got sent a link to a Carp Calendar - an erotic Carp Calendar...  You can get to the link by clicking on the picture or title...

In order to be a better photographer, especially of fish, you need to understand how DSLR cameras work.  This EXCELLENT web site teaches the basics of photography through great visuals and interaction.  Click on the picture or title to get the link...

This is what Fish Vet Richmond Loh has to say on the subject.  Click on the title or picture to read the information...

Aquaponics, a blend of aquaculture and hydroponics that grows both fish and plants for personal consumption, is an increasingly popular hobby. Read the short description below by clicking on the title or picture.

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!If you're not havin' FUN, you're not doin' it right


 

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