kill all hitch hikers

Biocides are used to anti-foul ships (painted on) to deter or kill the microorganisms hitch hiking a free ride on the side of ships. To get your new phone, laptop, pants, tampons from the low paid corners of the earth, shipping companies use more and more drugs, disinfectants and antifoulant compounds (biocides) to eliminate naughty microorganisms that threaten to interfere with profit.
High risk to shell fish eaters and plenty of room of antibiotic resistence in bacteria.
Biocides in the aquatic environment have proved to be harmful and toxic on multiple scales. Commonly used, tributyltin (TBT), chlorothalonil, dichlofluanid, DCOIT (4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, Sea-nine 211®), Diuron, Irgarol 1051, TCMS pyridine (2,3,3,6-tetrachloro-4-methylsulfonyl pyridine), zinc pyrithione and Zineb.

Take your antibiotics