daas: “The primary species is Diacyclops thomasi, a very common type of copepod. It begins life measuring about 90 microns (.09 mm) and grows up to about 0.8 mm (males) and 1.4 mm (females) in about five weeks time.”
From a site you provided. It seems the copepods are much bigger then 30 microns, however the anisakis are swallowed by krill at 1/12 the size of a mite which even Rav Vaye considers not visible.