🧼 Natural peptides from cyanobacteria offer eco-friendly solution to marine biofouling

https://phys.org/news/2026-01-natural-peptides-cyanobacteria-eco-friendly.html

#biotech #materials #ocean #biofouling #clean #microbes

Natural peptides from cyanobacteria offer eco-friendly solution to marine biofouling

A new CIIMAR study demonstrates that natural peptides produced by cyanobacteria are capable of replacing toxic biocides that dominate the market for anti-fouling paints used in the maritime industry. The use of these peptides as an active component brings direct benefits to the environment, the blue economy and marine biodiversity.

Phys.org

Was klebt da an unseren Schiffen? 🐚 Algen, Muscheln & Co – sogenanntes #Biofouling. Klingt harmlos, hat aber Folgen: 🚢 höherer Treibstoffverbrauch, 🌍 mehr CO₂-Emissionen & 🐟 Verbreitung invasiver Arten, die das Ökosystem Meer stören & Fischbestände gefährden. Zum Welttag der Ozeane zeigt das BSH in einem kurzen Video, warum es wichtig ist, Biofouling zu bekämpfen. Jetzt anschauen & Meere schützen! 🌊

https://youtu.be/SHc1KL3OfCY?si=jxjt3LjCtLmqaOC4

Was ist eigentlich Biofouling?

YouTube
Laser-textured metal surfaces mimic shark skin to combat bacterial biofilms

Keeping work surfaces clean during meat processing is a challenge. Bacteria from meat can attach, grow, and build up to create a biofilm that is difficult to remove, even on stainless steel surfaces used in industrial facilities. It can also aggregate, clumping together into an invisible mass that is stronger than individual cells, making it harder to kill using food-grade antibacterial surface cleaners.

Phys.org
Carbohydrate produced by bacteria triggers marine biofouling

Most bottom-dwelling marine invertebrate animals, such as sponges, corals, worms and oysters, produce tiny larvae that swim in the ocean prior to attaching to the seafloor and transforming into juveniles. A previous study led by researchers at the University of Hawai'i (UH) at Mānoa School of Ocean and Earth Science and Technology (SOEST) unlocked the mystery of how the floating larvae responsible for establishing marine biofouling settle and metamorphose: specific bacteria in biofilms are a signal that they have found the "right spot."

Some #biofouling species on parade!
Blue mussels, skeleton shrimp, amphipods oh my!
And tunicates with anemones on top!
#Halifax

It was nice to collaborate on this project, led by PhD student Emma at the Crick group using bacterial adhesion assays to optimise the hydrophobicity of surfaces to prevent biofouling.

#materialsscience #biofouling #microbiology

https://onlinelibrary.wiley.com/doi/10.1002/admi.202202532

We've just excluding yet another cruise ship infested with contaminants. This time it's the Azamara Quest.

Note that the exclusion only applies to special marine areas -- Fiordland, the Bay of Islands and Akaroa. Dirty ships are still permitted to dock in Dunedin, Lyttelton (Christchurch), Wellington, Napier, Timaru, Tauranga and Auckland.

https://www.stuff.co.nz/timaru-herald/news/130955278/cruise-ship-azamara-quests-passengers-not-too-happy-with-change-in-cruises-plans-due-to-biofouling

#CruiseShips #BioFouling #NZ

Cruise ship Azamara Quest's passengers not too happy with change in cruise's plans due to biofouling

Some passengers of the Azamara Quest who got off to see Timaru were not too happy with the change in the cruise's schedule.

Stuff

Yet another cruise ship has been turned away from NZ for having a dirty bottom. I believe three makes a hat-trick.

https://www.rnz.co.nz/news/national/481910/third-cruise-ship-in-three-weeks-fails-nz-s-biofouling-standards

#CruiseShips #BioFouling

Third cruise ship in three weeks fails NZ's biofouling standards

The Seven Seas Explorer had too many worms and too much algae.

RNZ

This news story from ABC News about a delay in the docking of a cruise liner in Port #Melbourne due to its hull being biofouled may have been getting some attention for its impact on passengers, but if you want to know more about the reasons behind the decision to delay its docking check out the research journal link I've added about the role of shipping as a vector for #marine #InvasiveSpecies

https://www.abc.net.au/news/2023-01-02/cruise-ship-stranded-south-australia-melbourne-marine-growth/101822590

https://www.sciencedirect.com/science/article/pii/S0025326X22001783

#biodiversity #ecology #biofouling

Passengers to be compensated after cruise ship denied entry to Australian, NZ ports due to 'marine growth' on hull

Hundreds of passengers are expected to set foot on dry land for the first time in more than a week, after a build-up of marine creatures and plants was cleaned off the ship's hull.

ABC News