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Re: Culturing bloodworms
- To: live-foods at actwin_com
- Subject: Re: Culturing bloodworms
- From: "David W. Webb" <dwebb at ti_com>
- Date: Mon, 13 Apr 1998 10:31:42 -0600
- Conversation-Id: <199804110338.XAA27589 at acme_actwin.com>
- In-Reply-To: <199804110338.XAA27589 at acme_actwin.com>
Non-member submission from [George Slusarczuk <yurko at warwick_net>]
> Original text:
> Date: Fri, 10 Apr 1998 23:41:02 -0500
> From: George Slusarczuk <yurko at warwick_net>
> To: live-foods at actwin_com
> Subject: Re: Culturing bloodworms
> > After searching the archives to no avail, I have a question or
> 1) Does anyone have information about culturing bloodworms?
> 2) I understand these are the larva of midge flies, does anybody know if
> they are present in south Georgia?
> Thanks in advance for the info I cant find this info anywhere
> Barry Barlow
> bbarlow at camcomp_com
> Hello Barry,
> I have found "bloodworms" in my mosquito cultures & followed up on their
> care & culture.
> For a while I "bread" mosquitoes in 1-gallon white plastic pails located
> in the shade, under a tree. The falling leaves provided an ideal medium
> to lay their eggs in for mosquitoes and - it turned out - also for
> Chironomid midges.
> Sometimes you could see the larvae - red, wriggly "worms" - swim in the
> bucket, but most of them were concentrated in the humus on the bottom.
> They form a protective camouflage coat of debris around them, so it
> might be a little bit difficult to see them. Anyway, I used to capture
> them and put them in a separate container inside an empty aquarium,
> covered by tight-fitting mosquito netting. They grow well on powdered
> fish food (Tetramin).
> I did not succeed in establishing a permanent culture, mainly because I
> lost interest & discontinued the experiments.
> The problem is in mating of the midges - they need air space to mate &
> the female has to have a suitable water container to lay her eggs in.
> Some species (i.e. Chironomus riparius and probably others) need only
> about 1-2 cubic feet of space to fly & mate. Others need much more
> space. C. riparius larvae grow to 3/4-1" in length.
> Another problem is the time needed to maturity and midge emersion. After
> three months, my "mosquito bucket midges" were still in the "wormy"
> stage. C. riparius needs only a few weeks to go through its life cycle.
> Chironomus riparius is used in environmental testing, so your State EPA
> will know where you can obtain a starter egg mass (perhaps even donate
> the eggs or suggest a better species of midge). If my experience is any
> guide, obtain at least five egg masses, because the midges emerge at
> intervals and you need several of them for mating. Also, until you gain
> experience, give them more air space, say a 20-gal high.
> I am almost certain, that the US EPA has a pamphlet on culturing
> Chironomus riparius. Should you find it, please let me know - I might
> someday get back to culturing bloodworms.
> George Slusarczuk
> yurko at warwick_net