The Hope pioneer. [volume] (Hope, N.D.) 1882-1964, 1903-09-03
GREAT THESE.
Young Rainbow Trout Ia Nsw York
Aquarium Do Wonderful Feats.

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Young Rainbow Trout Ia Nsw York
Aquarium Do Wonderful Feats.
What little trout can do in the way
Of jumping and in the way of swim
ming up hill against a current was
shown lately in the case of a lot of
agile youngsters at the New York
aquarium, says the Sun. Those lit
tie brown trout, two inches or there
abouts in length, would jump a
height equal to their own length up
a waterfall from an inch pipe seven
inches long, and then swim up the
pipe to the trough above. But some
little rainbow trout Matched at the
aquarium have lately done some-
thing much more remarkable than
that.
Shad eggs at the aquarium this
spring were Matched in jars from
which siphon tubes ran to tanks
close by. AS the fishes were Matched
out they rose naturally to the top of
the water in the jar, where they were
caught in the current setting toward
the opening in the siphon tube, and
siphoned off into the tank.
A half-inch foot-long glass tube
rising through an opening in the top
of the jar formed a part of the siphon,
to the top Of this glass tube being at
tachcd a rubber pipe to form the
curving part. This rubber tube,
which was half an inch in diameter
inside, ran up to and over an iron
rail, on which it was supported. curry
ing down from there and rising again
in an upward curve to the edge of the
tank. upon which the pipe again
rested, the end ofthe pipe being car
rled down under the surface, in the
water Of the tank.
While there are at the moment no
eggs in process Of matching in them,
the Jars are not dismantlcd, but the
water is kept circulating through
them, and young fishes arc shown in
the tanks. Thus there are now in
one of the tanks a lot Of young rain
bow trout. They were Matched out
mere last February, and the biggest
are about p inches in length.
These little rainbows are all the
time lettering around the opening of
the slphon tube, through which a
current is always flowing. just as the
fishes in any aquarium tank may be
found around the tanks intake; and
they are all the time trying to make
their way up the pipe, as they would
try to make their way up the current
OF a steam in nature. Two of them.
including enc Of the very biggest.
last week did make their way from
this tank through the siphon tube
and over into the jar with which the
tube connects.
10 90 this these two little rainbow
had to swim against the current
through a pipe scarcely greater in di-
ameter than their own width with
pectoral fins extended. this narrow
pipe being nearly three feet in length
and presenting to them a total rise
of eight inches or more in two ascend
ing curves. 1t was a steep rise for
them for the first few inches of the
pipe, to where it rested on the edge
OF the tank, from which point they
slid down into the valley formed by
the downward curve of the hose. out.
side the tank; while from there they
had to climb. with the upward curve
OF the hose, the steep incline to where
the hose was carried'overth support
ing bar. Once over that, of course,
they couldn't do otherwise than drop,
head first, down the glass pipe into
the jar.
The Matching jars are like big, tall,
wide-mouthed bottles, with screw
tops, through which run the intake
pipe and the siphon tube. It was,
OF course, necessary to unscrew the
top of the jar into which the two
young rainbows had thus made their
way in order to get them out and re-
! turn them to their tank.