It’s not just fish, plastic pollution harms the bacteria that help us breathe – Macquarie University

“…exposure to chemicals leaching from plastic pollution interfered with the growth, photosynthesis and oxygen production of Prochlorococcus, the ocean’s most abundant photosynthetic bacteria,”

…albeit in lab conditions but plastics issues are much more than just the macro visible stuff we can see….


Type 1 CRISP Cas3

Bacteria cultures are big time part of shrimp aquaculture industry from seed to grow out and right up to end consumer eating.

Keeping track of latest developments (here) important for better understanding potentials…

Well shine a “blue” light….on shrimp Staph…..what is current shrimp farming HR standards on worker bacterial infections? Allowing workers to use Chloramphenicol?

Harvesting shrimp in the old days meant getting down and dirty pond side. Rostra punctures and cuts were the norm. These would rapidly get staph infected and workers would wipe eyes, transfer infection etc.

My cure was garlic to clean cuts. But many use chloramphenicol as cheap and very effective. Of course plastic eye drop bottles get chucked….!

Farm HR protocols may not be tight in that aspect of supporting workers in hazardous jobs. Would be interesting to see what standards policies are….

Blue light might work also somewhere in chain…

Link here

Do shrimp, like fish, have slime….and anyone in the shrimp industry resarching?

Yes of course healthy shrimp are nice and slippery with a mucous type covering but anyone in shrimp industry researching same as here?

Anti-evolvability drug to combat AMR in shrimp…

proof-of-concept for small-molecule inhibitors that could be administered with antibiotics to reduce resistance evolution by impeding differentiation of (bacterial) gamblers, without harming antibiotic activity….

Oh yes – here, put that in your pipe and smoke it

Prawntastic – polyculture and biodiversity

Practiced for millennia. 

Back in the day when we were starting up Western aquaculture IMTA used to be called poly-culture.  The FAO promotes this big time in developing countries.

Growing shrimp (or marine insects) in ponds in the tropics has always meant managing biodiversity in the ponds. Algae and bacteria being the majors primary cultures that need to be managed to get the end product out. Yes shrimp is just the sum of these cultures as a centre of the plate protein offering for end consumers. After all cannot serve up algae and bacteria (yet). Algal/bacterial culture technology is something that we had to develop and grow in tandem with shrimp aquaculture.

Indoor RAS technology has meant that one can remove all externalities and concentrate on direct feed conversion. No more worrying about managing and growing a population lower down the food chain to grow one further up the food chain. However it has its own problems too including how to scrub the discharges. 

The move of the aquaponics concept, using RAS technology developed over 30 years ago in Europe, to urban USA has meant a re-naming to something more scientific high level and tech sounding. Polyculture is just not sexy enough and brings to mind extensive outdoor systems in developing countries. This just does not tickle investors.

Promoting biodiversity in Brooklyn for local markets

Of course this is great technology, is sexy and feeds into latest food production concepts (local, circular economy, IoT, zero antibiotics, sustainability, etc, etc) and is advancing on many fronts in many countries.

BUT it is still extremely niche and will not help solve the feeding of the near future population growth on this planet. It is riding on the coattails of mono-culture aquaculture which, as a non-peaked resource can and has helped to date to offset a stagnant peaked resource that is fishing – you all have the graphs.

Perhaps IMTA will really go mainstream by 2050 once our population has peaked and we have covered the planetary food security issue, and increased healthy seafood consumption while, with stewardship, protected the oceans from further pillage.

Until 2050 then…..although, by then, we will probably be eating shrimpless shrimp made from algae or bacteria directly!

Shrimp bottom feeders & marine sediments – Microbiome, Blue Biotechnology.

Have you ever asked yourself the role marine sediments play in the shrimp life cycle?

Is it just a place shrimp burrow into for protection or to help physically during molting?

Marine sediments are vastly understudied but provide a huge reservoir for biosynthesis potential.

The microbiome is now a big area of research for human health. As is and has been for a while with shrimp.

Growing shrimp on bacteria, like on algae, has been researched extensively. There are biofloc shrimp culture technologies (BFT) and bacterial meal feeds. Clay used in shrimp feeds as binders is commonly incorporated.   

As a Oceanographer and soil scientist my first role in 1983 was to study shrimp pond bottoms. In their natural state shrimp are benthic bottom feeders, unlike fish that live more within the water column. Looking at the build up of sediments from algae, feed and bacteria is important to understand the shrimp life cycle.    

Perhaps marine sediments are supplying something more than just protection for shrimp – like a good dose of beneficial (or not) bacteria….