RE: NANFA-- Survivors

Jay DeLong (
Thu, 11 Jul 2002 16:18:45 -0700

Many fish have specialized skin cells that release an alarm pheremone when
damaged. This has been shown to alert other fishes to the presence of
danger, because they exhibit a flight response. Maybe this also elicits a
feeding response, as when injured feeder fish are placed near a predator.

Jay DeLong
Olympia, WA

> -----Original Message----- > From: On Behalf > Of Jeffrey Fullerton > Sent: Thursday, July 11, 2002 1:32 PM > To: > Subject: NANFA-- Survivors > > > > Date: Wed, 10 Jul 2002 11:32:44 EDT > > From: > > > > sounds like, my kind of fish ;-) I have a flathead that gorges > himself on > > gambusia and bluefin killies. For some reason anything new > added to his tank > > attracts immediate attention but he pretty much ignores any fish that > > survives the first couple of days. > > > > Moon > > > Moon > > That is interesting > I've experienced similar behavior in turtles. Feeder fish are greedily > devoured when they are introduced but survivors generally are able to > reside in the tank unmolested. I wonder if it is the bewildered nature > of the freshly introduced fish that makes them vulnerable and the > survivors learn to keep out of the way of the predatory fish and > turtles. > > Jeff /----------------------------------------------------------------------------- /"Unless stated otherwise, comments made on this list do not necessarily / reflect the beliefs or goals of the North American Native Fishes / Association" / This is the discussion list of the North American Native Fishes Association / To subscribe, unsubscribe, or get help, send the word / subscribe, unsubscribe, or help in the body (not subject) of an email to / For a digest version, send the command to / instead. / For more information about NANFA, visit our web page,