There is a theory that when large freighters move in and out of port the low freq. vibes from the props attract salmon ( might have sumthin to do w/churning up all that mud n stuff also) I remember seein a video re this some years ago and it was pretty convincing.

Roger
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"Man can learn a lot from fishing. When the fish are biting, no problem in the world is big enough to bne remembered. " -- Oa Battista

VERY Homesick in San Diego