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Thread: Production within dense mats of the filamentous macroalga Chaetomorpha

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    Production within dense mats of the filamentous macroalga Chaetomorpha

    "Production within dense mats of the filamentous macroalga Chaetomorpha linum in relation to light and nutrient availability"

    http://www.int-res.com/articles/meps/134/m134p207.pdf

    This is a good study, because chaeto is familiar, and because some people consider putting it in a refugium instead of using a scrubber.

    Fig 5B shows how, under bright light, chaeto productivity (filtering) drops 72 percent with just 2 cm of chaeto thickness.

    Also, speaking of how far light will travel through algae, there is this: "in phytoplankton communities, chlorophyll densities may range from 0.2 to 0.4 in productive lakes to 0.00015 g chl A m3 in oceanic waters". This means that lakes can have 1000 times the density of phyto.
    Last edited by SantaMonica; 12-25-2016 at 07:11 PM.

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    Think I,m gonna give this lighting schedule a go and see what happens. Instead of running lights 18hrs a day, this only equates to 12hrs a day, and at 107watts this may give a decent saving if the growth is similar to what I get now.

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    Garf please let me know what kind of results you see with this, I'm giving it a go as well.

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    Quote Originally Posted by data_loss View Post
    Garf please let me know what kind of results you see with this, I'm giving it a go as well.
    No problem, started it today so well see if there's a difference after a bit of acclimatisation I should have thought.

    Edit - my timer won't let me do this at present so it's back to the normal schedule for me, sorry.
    Last edited by Garf; 11-14-2012 at 02:25 PM.

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    Interesting were testing me, and I decided to change the light cycle. I'll have two periods of ON and one OFF after 4 hours.
    For a week I have set up the lighting in the four-hour cycle.
    On 20:00 to 24:00,
    OFF 24:00 to 4:00,
    ON 4:00 to 8:00.
    Based on the results should give algae researchers at night twice a stimulus to growth, so theoretically double the weight gain.
    I wonder if is confirmed?

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