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Re: Sex Ratio "Experiment"
This is an admirable undertaking. Besides recording
temperatures, pH, TDS, record whether you feed in the
morning, evening or throughout the day with live food.
--- Doug Karpa-Wilson <dkarpawi at indiana_edu> wrote:
> I'm thinking that there's a lot of ideas about what
> controls sex ratios out
> there, and lots of us would like to know!
>
> So, I was thinking we should do an experiment
> together, or rather collect
> data on the experiments we are already doing.
>
> What I'm proposing is that volunteers do a few extra
> things to collect data
> on the fish they are breeding and the resulting sex
> ratio and send the data
> to me. If there's a big and obvious pattern it
> should fall out
> statistically in a hurry.
>
> Here's how it'd work:
>
> First, folks collect easy to collect data on
> hypothesized factors:
> mostly temp, pH, any others?
> at different times in their breeding process:
> spawning, incubation, hatching and say, 2 weeks of
> age.
> and lastly,
>
> sex ratio.
> Then send the info to me, and I'll do my best to
> pull out whatever patterns
> I can from what data I get.
>
> Any thoughts before we start this?
>
> Doug
>
> Doug Karpa-Wilson
> Department of Biology
> Indiana University
> Jordan Hall
> 1001 E. 3rd St.
> Bloomington, IN 47405
>
>
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=====
Allen H. Johnson
132 Whispering Oaks Dr.
West Chester, Pa. 19382
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