Questions and Answers to concerns
I've been reading different articles on the
"concrete being natural" situation, and some state that some concrete
does have chemical additives. Quikrete lists in the ingredients of on of its
products "and other ingredients approved for use in concrete".
According to the following article "cement has constituents that...have
corrosive effects" and thus should be "treated as hazardous
materials" (http://www.ncbi.nlm.nih.gov/pubmed/15068132). This of course
pertains to people handling the concrete and may not affect the oysters, but it
could be a source of future error to consider since you can't test your product
over a long time span. So should someone ask after your next presentation about
potential ill effects of concrete, I wouldn't generalize that it is ok cause it
is made of natural substances, but address potential issues that you weren't
able to test in this short time period.
Angela Boney,
First let me say it was good to see, so I could thank you for
taking me to a higher level of matters in my project, second I would like to
write some of those things we talked about, so that others who have similar concerns
may have some insight.
Concerns of ill effects, yes concrete over long
term exposure or skin irritation “can” cause dermatitis which is a skin
allergic reaction, it is recommended that glove be worn when mixing the
concrete of any kind. It is also recommended to wear gloves when handling the
oysters due to splinters which can cause the same skin irritations.
Long term use and Corrosive
material: I have not personally
been able to deploy my oyster Mats “Yet” because I have to wait for the season
of the Oysters to spat, or do their thing, But I have read many articles over
the years where they have used recycled concrete from bridges and water mains
for a long time on restorations of coral reefs and those all have been positive
feed-back.
Sincerely Hope you stay in touch, and thank you again, we will
miss you and congratulations on the move.
Robin
What are currently the biggest threats posed to
existing oyster beds? What is the biggest obstacle to synthetic oyster beds?
~Bethany Cobb, Sec. 1
~Bethany Cobb, Sec. 1
Bethany Cobb,
Very good question,
one which I will have to do some digging into of research on this matter to be
specific, but for the most part pollution/construction (oil spills) and over
fishing or harvesting of oysters are the biggest threats.
Obstacles of Synthetic Oyster Beds: Testing and researching,
so I would have to say “time and money”. Oysters are seasonal as are most cycles of life are
and therefore it gives people time to prepare and test the artificial mats, but in the
same respect research on what is
actually better or as close to natural as possible takes time too. Trial and
error and never giving up!
Robin

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