Towns Jewish Times, Rabbi Moshe Vaya, clarified his position in regard
to worms in fish. It seems to this author that Rav Vaya holds to a
middle ground position in between those that absolutely forbid
consumption of fish with Anisakis worms and those that permit it
completely. Rav Vaya stated at the end of the video-taped interview
that certainly one should not eat fish that have the Anisakis worm
lechatchilah and stated that this was the position of the Eida Chareidis
In the middle of the interview, Rav Vaya said that the lower section
adjacent to the viscera should be removed for those fish that have the
problem. The reader is encouraged to listen to the tape to hear for
himself or herself. The link is here.
Rav Vaya also stated that if one clearly observed the worm migrate from
the viscera to the flesh then the worm is certainly forbidden. He
stated, however, that one need not be concerned for this.