native shrimp have color too!
Posted 16 February 2013 - 05:31 AM
this means that whoever can get good at breeding ghost shrimp can probably produce similar beautifully colored strains.
first, lets look at an amano shrimp:
showing the small blue granules(which im assuming contain quinine) located in the "branches" of some chromatophores.
zoomed out a bit. its showing at least three different colors, yellow, red, and blue. it seems to me that they are each produced in different ways, which would mean that there are three completely different genes for them. that might explain why shrimp genetics seems to be so tricky.
this ones is more zoomed out. the over all color of this amano shrimp was green with the naked eye. since no body has ever bred amano shrimp for color, they are essentially wild types. probably caught, since i dont know of any commercial breeder.
Posted 16 February 2013 - 05:36 AM
Posted 16 February 2013 - 05:41 AM
this is a closup of a chromatophore. its at 1000x. the shrimp survived the photography. it did not survive the fish though...
and, just because i was trigger happy with the microscope camera, a short video:
Posted 16 February 2013 - 01:08 PM
Posted 16 February 2013 - 01:28 PM
Posted 17 February 2013 - 02:13 AM
Posted 17 February 2013 - 01:13 PM
Posted 17 February 2013 - 10:52 PM
Posted 18 February 2013 - 04:07 PM
Posted 18 February 2013 - 04:36 PM
Either way, Ghost/Grass shrimp certainly do not lend themselves well to selective breeding. That pesky larval stage. I'm sure it could be done, but there will be little market for them because of their difficulty in propagation.
Posted 19 February 2013 - 05:10 AM
you take that simple complexity and throw in a few different colors, each with their own genes, and it starts to make sense why shrimp genetics can get so complicated. i really have no idea how the colors affect the shrimp in the wild. it seems that the actual color makes no difference to a female shrimp, she will breed with the first male that finds her after she molts. i know of some crayfish that cant seem to tell the difference between male and female from sight alone, with the males grabbing any crayfish that comes by and flipping them over to see if they are a suitable mate. im guessing in those cases, color is selectively bred for based on predation, since the crayfish themselves seem oblivious to the color of other crayfish.
all this leads me to believe that decapods in general are remarkably well adapted to blend in with their environment. most of them seem to carry the genes to produce practically any color.
Posted 19 February 2013 - 08:21 AM
Take what you will from this pic. I took it ~5 years ago at work when I was peeling a bag of frozen/thawed penaeid shrimp. I did nothing to enchance or edit the picture. Even though the shrimp were being fed to animals, they were fit for human consumption. Not sure if that means they were treated, or dyed to make them more appealing? Regardless, penaeids can be quite colorful as well.
Posted 27 November 2014 - 09:07 PM
Posted 28 November 2014 - 04:44 PM
Posted 28 November 2014 - 08:46 PM
Posted 28 November 2014 - 09:13 PM
Posted 28 November 2014 - 10:29 PM
Posted 29 November 2014 - 08:54 AM
Oh and I have tried the method for brine shrimp, where you get a 2litre bottle, make it brackish water, and put a airstone in the bottom, it doesn't work, the only perk is that u can see the laravl while they live for a week.
Posted 29 November 2014 - 09:42 AM
I've been able to raise fairy shrimp with some limited success, but it certainly wasn't economical as a food source.
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