Massive Stingray die off at the National Zoo

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T

tscharf

Feeder Fish
MFK Member
Apr 17, 2009
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Bowie MD
I went to the zoo sunday with my family and spent the whole time bouncing around waiting to go see the Amazonia exhibit. When i finally got their i was astounded to see the beautiful stingrays and arrowana in the open water tank. Next to that were 3 huge arapaima,2 huge red tails, a large niger and a number of pacus. The tank next to that had a large number of other fish.

This was my favorite exhibit.

I was sadden when i found out the news that several stingrays had died in the exhibit. Sunday night, after we left, sometime between closing at 6pm on sunday and opening at 7am on monday 11 stingrays a the 2 arrowana in the stingray exhibit died. Testing showed low levels of oxygen in the water. I beleieve their were 7 surviving female rays in the tank. The zoo does have 3 other males which are kept seperate, they are hoping that with the help of these males they will be able to reestablish their stingray population.

heres a link to the fox new coverage article
http://upge.wn.com/?template=cheetah-photo-search/index.txt&query=stingrays&language_id=-1
 
sad, ive seen the exhibit and the rays and aros were beautiful, wasnt it lack of oxygen that killed the rays at the calergy zoo?
 
i believe it was, sad, the rays were gorgeous
 
What would cause a sudden drop in dissolved oxygen like that? I dont imagine their water temp gets very high...
 
Sorry to hear about it
 
the last time i was there, my mom almost got bit by one of the arowana, i wonder why zoos and aquariums keep having these dieoffs
 
What species of stingrays?
 
This is indeed terrible news. I know they had some huge black rays the last time I visited. Either Henlei or leopoldi.


What's up TSCharf!! I'm the dude who comes in every day for feeders. :)
 
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