This Bosmina was found in Arenal Reservoir, Costa Rica. It is apparentl infected by a fungi, and we are interested to know if there is any experience about this condition, and if ti means something about the environmental condition of the lake.
I've seen specimens like this, where it turned out to be water mold. How were your samples preserved?
Dear Chantal. Thanks for your inquire. The samples were preserved with enoguh formaldehide (4% final concentration) just after collection in the boat, and latter transfered to 70% etanol in the lab. They were examined a few weeks after withdrawl.
We examined back quickly a few samples from previous dates, and there were few Bosminas with the infection, but in the last sampling the infection was much spread and Bosmina densities were quite lower than previously (we havent performed statistics yet). That's why it surprised us and moved us to ask...
Yours
Gerardo Umaña V.
Looks like Aphanomyces (or some other oomycetes). Common on copepods and daphnids. Can even occur in Daphnia culture. Pick a hyphen and run PCR.
Thankyou Elena. That gives us a hint. The thing is to know if that fact reflects some condition of the lake. And yes, we will do some genetical analysis.
Well, that is very interesting! I guess we should look more carefully at other lakes as well. Thanks again.
Dear Kay and Katja
Thanks a lot for your suggestions, I think they are very helpfull.
Gerardo
hi
Article An Update on the Global Stressors and Constraints Affecting ...
Dear Fatima
Thankyou very much for this interesting paper!
Gerardo Umaña V.
- Badges
- Science method
- Similar topics
- Biological Science
- Ecology