Marine cultivation

Marine cultivation

Postby mathu » Tue Feb 03, 2009 3:14 pm

Does the marine water have all the required nutrients for algae cultivation? Any additional nutrients required?
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Re: Marine cultivation

Postby Greencraze » Fri Feb 06, 2009 2:25 pm

Hi mathu,
The main nutrients needed for algae growth is already present in seawater. If the native algae are grown in the nutrient-rich places where they normally grow, nutrient addition might not be required at all. If it is going to be algae monoculture in marine deserts, then either rely on deep ocean water (DOW) or add nutrients.
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Re: Marine cultivation

Postby DR Johansen » Sat Feb 07, 2009 7:01 am

Please be aware that there are vast areas of the oceans known as HNLC (high nutrient, low chlorophyll) where there are plenty of nutrients but little growth. This is mainly because one of more of the MICRO-nutrients are missing. The most common deficiency is iron.

Experiments have shown that adding bioactive iron to these areas cause massive algae blooms. This might be the best source of algae for fuel purposes.
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Seaweed Biofuel - how it can be done

Postby arkibal » Mon Jun 14, 2010 3:50 pm

Here is an approach to marin cultivation:

http://www.youtube.com/watch?v=xwV1sciDDUA

Regards
Kaare Baekgaard
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Re: Marine cultivation

Postby aanssell25 » Sat Jul 24, 2010 9:16 am

Marine plants come in two forms. Some marine algae are so small they can only be seen under a microscope. Others are very large called macroalgae or seaweeds, such as Macrocystis, a species of kelp belonging to the Brown Algae group, which may reach 60 meters in length.Because of its salt content, salt water is more economical than fresh water for growing algae. The main nutrients needed for algae growth is already present in seawater.
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Re: Seaweed Biofuel - how it can be done

Postby DR Johansen » Sun Aug 01, 2010 7:59 pm

arkibal wrote:Here is an approach to marin cultivation:

http://www.youtube.com/watch?v=xwV1sciDDUA

Regards
Kaare Baekgaard
Great little show. Please be aware that you can do the same thing with microalgae and the only nutrient needed would be iron. But all in all, exactly what I have proposed numerous times on this forum.
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Re: Marine cultivation

Postby laila34 » Mon Oct 18, 2010 7:16 am

Thanks for some details guys.
Big help on my research.
thanks for sharing!

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Re: Marine cultivation

Postby Sugar70 » Mon Dec 13, 2010 11:49 am

here is one more attempt made near Chennai - Dr. MGR Algae Biofuel Research Center is also involved in exploring algae for carbon capture. They have launched an Algae farm in Sivakasi (the highest C02 emission town in Tamil Nadu and also a very hot place).
Thanks,,,
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