Nick Zarlinga
Aquarium Biologist
Cleveland Metroparks Zoo
216.661.6500 ext 4485
><)> -----Original Message-----
><)> From: Nick Zarlinga
><)> Sent: Thursday, December 04, 2003 1:10 PM
><)> To: 's3andg_at_yahoo.com'
><)> Subject: FW: NANFA-- FW: Acrocheilus alutaceus
><)> (chiselmouth)
><)>
><)>
><)> Gary, we had one person just respond with the
><)> below message. Also, another member noted that
><)> you were planning on introducing the species as a
><)> forage fish. I have no knowledge of this species
><)> myself, and I question your procedure, if they are
><)> not native to that area. As I am sure that you
><)> are aware, the introduction of *any species* into
><)> the wild can be very dangerous and is questionable
><)> at best. Obviously, make sure you check with your
><)> local and state authorities on the regulations of
><)> releasing any fish into the wild. As an
><)> organization, NANFA strongly cautions (and often
><)> discourages) the release of any fish into the
><)> wild, even if it is originally from the area.
><)>
><)> Nick Zarlinga
><)> Aquarium Biologist
><)> Cleveland Metroparks Zoo
><)> 216.661.6500 ext 4485
><)>
><)>
><)> ><)> -----Original Message-----
><)> ><)> From: owner-nanfa_at_aquaria.net
><)> ><)> On Behalf
><)> ><)> Of ichthos_at_comcast.net
><)> ><)> Sent: Thursday, December 04, 2003 10:37 AM
><)> ><)> To: nanfa_at_aquaria.net
><)> ><)> Subject: Re: NANFA-- FW: Acrocheilus
><)> alutaceus
><)> ><)> (chiselmouth)
><)> ><)>
><)> ><)>
><)> ><)> The new edition of *Inland Fishes of
><)> Washington*
><)> ><)> may have more
><)> ><)> updated information, but this is what
><)> I know about
><)> ><)> chiselmouth
><)> ><)> spawning and captive care:
><)> ><)>
><)> ><)> Young chiselmouth up to 10 cm (4 in)
><)> long feed on
><)> ><)> surface insects.
><)> ><)> Adult chiselmouth feed by using their
><)> chisel-like
><)> ><)> lower jaw to scrape
><)> ><)> algae from rocks and wood. Chiselmouth do not
><)> ><)> graze as many other
><)> ><)> algae feeders do. Instead, they
><)> appear to attack
><)> ><)> the algae, scraping
><)> ><)> off bits with quick, darting
><)> movements. Like other
><)> ><)> herbivorous fishes,
><)> ><)> chiselmouth have a long intestine, in
><)> this case up
><)> ><)> to twice the length
><)> ><)> of their body. Yet despite their specialized
><)> ><)> digestive system,
><)> ><)> chiselmouth are not really after the
><)> algae they
><)> ><)> swallow, but rather
><)> ><)> the tiny organisms, primarily
><)> diatoms, that live
><)> ><)> within it. Little else is
><)> ><)> known about their natural history.
><)> Chiselmouth
><)> ><)> seem to prefer the
><)> ><)> warmer parts of faster flowing
><)> streams, but also
><)> ><)> live in lakes where
><)> ><)> they can migrate into tributary
><)> streams to spawn
><)> ><)> in early summer.
><)> ><)> Males mature and spawn at three years of age,
><)> ><)> females usually
><)> ><)> at four. Although spawning has not
><)> been observed,
><)> ><)> chiselmouth
><)> ><)> eggs have been found on the open
><)> bottom and buried among
><)> ><)> boulders. Average life span is six years.
><)> ><)>
><)> ><)> Perhaps because of their size,
><)> chiselmouth are not
><)> ><)> commonly
><)> ><)> kept in home aquaria. Norman Edelen,
><)> Jr., a NANFA
><)> ><)> member from
><)> ><)> Washington, has kept chiselmouth and
><)> reports that
><)> ><)> their algae-
><)> ><)> rasping is interesting to watch,
><)> although they
><)> ><)> will eat any food
><)> ><)> offered them. Chiselmouth are often
><)> collected with
><)> ><)> peamouth
><)> ><)> (Mylocheilus caurinus), redside shiner
><)> ><)> (Richardsonius balteatus),
><)> ><)> speckled dace (Rhinichthys osculus),
><)> and young northern
><)> ><)> pikeminnow (Ptychocheilus
><)> oregonensis). A large tank of
><)> ><)> these minnows can make for a nice
><)> schooling display. One
><)> ><)> published note observed that the
><)> chiselmouth's
><)> ><)> "overall behavioral
><)> ><)> activity level appeared to increase with
><)> ><)> barometric pressure and
><)> ><)> full-moon cycles," but that more
><)> observations were
><)> ><)> needed to
><)> ><)> confirm this behavior (Ulstein and Blackburn,
><)> ><)> American Currents
><)> ><)> Nov. 1988-Jan. 1989: 11-12).
><)> ><)>
><)> ><)> Chris Scharpf
><)> ><)> NANFA HQ
><)> ><)> > Anyone have any information on this
><)> species?
><)> ><)> Ya'll are making me look bad
><)> ><)> > on my first task as website contact.
><)> ><)> >
><)> ><)> > Nick Zarlinga
><)> ><)> > Aquarium Biologist
><)> ><)> > Cleveland Metroparks Zoo
><)> ><)> > 216.661.6500 ext 4485
><)> ><)> >
><)> ><)> > -----Original Message-----
><)> ><)> > From: Gary or Sarah Jackson
><)>
><)> ><)> > Sent: Wednesday, November 26, 2003 1:37 PM
><)> ><)> > To: junk1_at_www.peter.unmack.net
><)> ><)> > Subject: Acrocheilus alutaceus
><)> (chiselmouth)
><)> ><)> >
><)> ><)> >
><)> ><)> > Dear NANFA -
><)> ><)> >
><)> ><)> > I am a fisheries resources student at the
><)> ><)> University of Idaho and I would
><)> ><)> > be interested in corresponding (or
><)> speaking)
><)> ><)> with anyone that you might know
><)> ><)> > that has knowledge of the spawning
><)> habits of
><)> ><)> Acrocheilus alutaceus. I am
><)> ><)> > currently working on a management
><)> plan for a
><)> ><)> small reservoir in Northern
><)> ><)> > Idaho and I am considering introducing the
><)> ><)> chiselmouth as a forage fish and
><)> ><)> > possibly as an aid for
><)> phytoplankton/macrophyte
><)> ><)> control. Any information
><)> ><)> > that your organization might offer would be
><)> ><)> kindly appreciated.
><)> ><)> >
><)> ><)> > Thanks
><)> ><)> > Gary Jackson
><)> ><)> > (208) 885-5720
><)> ><)> > s3andg_at_yahoo.com
><)> ><)> > --
><)> ><)> > Do you Yahoo!?
><)> ><)> > Protect your identity with Yahoo!
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