Questions tagged [algae]

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What strains of algae do freshwater fish, snails, and shrimp prefer?

After a deep clean, my aquarium is algae free for the moment. This is a problem for my algaephage fish, snails (mystery and especially nerites who apparently can't eat wafers), and amano and cherry ...
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Minimum LED wattage for a Spirulina growth tank?

I was recommended this stack to ask this, as it seemed like a somewhat tricky question to find an answer to! Originally I had thought that it would be around 300W per square meter, as the general ...
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47 views

Are there completely self-sufficient autotrophs?

Are there completely self-sufficient autotrophs which can survive and reproduce indefinitely by consuming exclusively non-organic matter (plus energy from sunlight or thermal vents etc.)? I'm asking ...
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What strain of Arthrospira (Spirulina) is this?

Can anyone help me to identify this strain of Arthrospira (Spirulina)
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What is “beto carotene” and how can it turn lakes pink?

The BBC News article Pink lake in Australia attracts and delights tourists describes an artificial salt lake in Westgate Park, Melbourne, Australia that tuns pink around February and then in "late ...
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What kind of lichen is it (no. 2)?

I think i found very interesting lichen. I discoved it at 1.15 PM CET in Prague nature conservation area called Divoka Sarka. I took this picture on the place of my discovery. One piece of this ...
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What is the electric field strength of microalgae?

Question: What is the electric field strength of microalgae? Background: So I have been having some problems with fungi contaminating my chromera velia algae cell cultures. I haven't determined what ...
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Volvox Cellular Reintegration

A couple of days ago, I answered this question over on worldbuilding.SE with some information about volvoxes, and commenter Liam Proven pointed out that one of the claims I made was dubious. I had ...
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particles in spirulina medium

Can any one suggest what are this particles in my spirulina growing medium? PH is between 10 and 11 and the medium is few months old. It turned green and stays green color even after I filter ...
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How to grow a Spirulina biofilm on a carbon/graphite cylindrical cathode

I am trying to grow a spirulina biofilm on my cathode for a fuel cell but it doesn't seem to be sticking to the cathode. I have a culture of spirulina and I've submerged a few cathodes in it to try ...
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108 views

Do green algae form obligate symbioses with fungi?

I understand that obligate symbioses means that the two organisms cannot live without each other and are in a symbiotic relationship, but do green algae from this with fungi?
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How does the OD correlate with the number of algae cells?

My research team and I are using a spectrometer to measure the OD of an algae sample. We are trying to answer the question "Is there a correlation between OD and the number of algae cells?" What ...
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What are the obstacles to modifying an algae to secrete fuel?

I've been reading a bit about algae fuel. It sounds like people did some work and then decided it was too difficult. This link mentions Exxon's work: https://en.wikipedia.org/wiki/Algae_fuel#...
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Taxonomy problems on algae: Is Cryptophyta a Phylum or a Class rank?

I am currently interested in algae taxonomy (I am not an expert in the field). I retrieved the taxonomy of my sequences with their NCBI access number via the taxonkit software (https://bioinf....
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Where can I find a compendium of microorganisms?

I recently bought a microscope hoping to learn more about algae and bacteria and stuff. I've collected a few samples of pond water and found tons of algae and stuff, but I have no idea what to call ...
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What are challenges faced by algae bioreactors?why they are not deployed on large scale if effective?

I was going through and studying how algae bioreactors work. I am mostly working for closed systems like tubular photobioreactors. I want to create bioreactors to combat pollution problems. However, I ...
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157 views

Can Thraustochytrids such as Schizochytrium do photosynthesis?

I know they belong to the phylum of heterokonts and that they are being heterotrophically grown on an industrial scale but I can't seem to find any reference to them being grown photoautotrophically. ...