Research & Technology - Technology & Research from or relating to Koi/Fish, Tools Used

The future of fish feed continues to evolve.  How will it change what we feed our koi?
 
Veterinarians from RUDN University have developed a way to increase the resistance of carp, the most common fish in fish farms, to the harmful effects of ammonia, which is found in almost all water bodies. The researchers found that the amino acid arginine added to fish food can be helpful. The results are published in the journal Aquaculture.
 

A short, but very interesting study in ammonia eating bacteria, and how frequency of feeding affects ammonia rates in water.  
 
..."Feeding leads to a peak in the ammonia production. For the symbiosis between fish and bacteria, it is better if the ammonia production is more constant. It is therefore better to feed often with small amounts than with large amounts once or twice a day. The bacteria -- and therefore the fish -- benefit from this feeding tactic. Nearly all organisms benefit from constancy."
 

A noted downside to keeping both koi and goldfish together. 
 
The eye-attacking behaviour of Koi fishes was recorded in a koi–goldfish polyculture system. The attacked fishes suffered from eye ablation, abnormal swimming and suppressed feeding behaviour. There was a significant difference in mean sizes of victims and attackers but the exact motivating stimuli for the observed action was not clear. For future research, the effects of different stocking ratios on aggressive behaviour of koi should also be examined.
 

Scientific research about swimbladder disorder for koi.  So for our very scientific minded koi lovers, this one is for you. 
 

Humans have been the only known species to domesticate other animals - until now. 
 
(picture credit:The Smithsonian’s Carrie Bow Cay Marine Research Station off the coast of Belize.Rohan Brooker)
 
In our new study, we describe what appears to be first example of a non-human vertebrate domesticating another animal...

A research paper on the reflective properties of koi scale and skin. A must read for our research minded members!
 

So how did we really get the most common ornamental fish in the world?  Scientists are working to figure it out. This article is for all you research lovers!
 

The amazing powers of bioflim and it's future potental.
 
Researchers have demonstrated that a slimy, yet tough, type of biofilm that certain bacteria make for protection and to help them move around can also be used to separate water and oil. The material may be useful for applications such as cleaning contaminated waters.
 
Bacterial film separates water from oil (phys.org)

Its been coming, fish food without the fish. 
 
Dartmouth scientists have created a more sustainable feed for aquaculture by using a marine microalga co-product as a feed ingredient. The study is the first of its kind to evaluate replacing fishmeal with a co-product in feed designed specifically for Nile tilapia.
 
Story link: Making aquafeed more sustainable: Scientists develop feeds using a marine microalga co-product (phys.org)

Amazing research about damselfish domesticating shrimp!
 
...Now, researchers have discovered fish that seem to be using shrimp in the same way we would use a farm animal.
The team thinks it could be the first example of a vertebrate species – other than human – domesticating another animal.
 
Story link: These fish may have 'domesticated' shrimp staff to help them farm algae - Science Daily Press

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