RE: Daphnia taxonomy questions / Cylcops - fish mortality questio n

["J.P.Haffegee" <J.P.Haffegee at open_ac.uk>]

I find that if I overfeed my daphnia, and it all goes smelly, it just
turns into a cyclops culture. Cyclops seem to just take over. This is in
fish less cultures. 

						Jules 

> -----Original Message-----
> From:	gallaghr at nbn_com [SMTP:gallaghr at nbn_com]
> Sent:	Friday, October 16, 1998 5:14 PM
> To:	KillieTalk at aka_org
> Subject:	Daphnia taxonomy questions / Cylcops - fish mortality
> question
> 
> Help me here.
> 
> I have a small "daphnia" that I'm calling Moina.  But maybe it's
> Ceriodaphnia dubia?  What's the difference?
> 
> Is the large species of Daphnia found locally automatically D. magna?
> Is
> the regular size D. pulex?
> 
> Can I tell all these apart simply by size alone?
> 
> Are there other species of Daphnia?  Moina?  Ceriodaphnia?  Others?
> 
> Is there a daphnia taxomony FAQ webpage?
> 
> On a different subject, I've noticed that levels of Cyclops in my
> small
> tanks rise when the water and fish quality begins to deteriorate.
> When I
> find dead fish, Cyclops levels seem very high.  Are the Cyclops
> exploding
> because of a worsening water quality situation, or did the Cyclops
> injure/kill my fish?  [The Cyclops are introduced when I feed
> daphnia.]
> 
> Bill

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