Scanning rays

  • We are currently upgrading MFK. thanks! -neo

Mark Huveneers

Gambusia
MFK Member
Dec 1, 2007
215
2
16
Netherlands
A couple of weeks ago me and a friend went over to Jo's place to scan all the female rays because we suspected some were pregnant for the first time. We had invited a specialist to do the job, while we drunk some Jupilers (belgian beer). It was a very interesting day and the results were great, everything was pregnant.

We made a lot of pictures and I will show a couple of the scanning of a Leopoldi female.

Here she lies, a eight or nine year old 65cm female that has never had pups before.

scan.jpg


Gently she is guided into the plastic container.

scan1.jpg


Our mad scientist scans the rear end of the ray checking for pups, while the hero (me) holds the tail to avoid bloodshed. The technique is the same that is used for scanning human babys, an echoscan.

scan2.jpg


Bingo, we found the first pup, it is the egg-shaped tornado you see on the middle of the screen.

scan3.jpg


Using the tools integrated in the programm we are able to measure the pup. The length of the line is 28mm, this means the pup is probably only one month old.

scan4.jpg


After we're done scanning samples are taken of the skin and the gills to check for parasites.

scan5.jpg


The samples are checked under the microscope. All clear, no parasites at all.

scan6.jpg


We followed this procedure a number of times that day with great results and are looking forward to see lots of little pups soon.
 
That is great. Was the first one just never housed with a mature male or never found a compatible male for her?
 
Great work
With a big eight year old female how many pups did she have in there ?
When you checked under the microscope for parasites is it as simple as no movement = no parasites ?
If you could give me more info on how you guy take the scraping samples from the gills and body that would be great.

thx
:headbang2
 
lolz that is so cool... with microscope and everything . out of curiosity why couldn't you guys just wait and see if her stomach get bigger with time?
 
lol, leaving nothing up to chance. The beer was a nice touch, grats!
 
congrats, and glad to see you really going the extra mile for your rays :thumbsup:
 
MonsterFishKeepers.com