324
THE BIOLOGY OF FISHES
Ï
that the young l‘arvæ’ could not live through the
Conditions and had to be set free in the open waters before
the yolk—sac was absorbed, thus before the most
stage in "their career began. As a practical
put it, the whole operation looked like
“
blowing
bubbleë into the sea,” and judged from the standpoi‘itt":Ôffa=,,Ëf
the present time the simile Was quite justied.
fr0m the improbahity of these articiall'y
larvæ
surviving, it has long been known that the sea does
suet from a…lach‘ of young sh ; quite the: reverse isthe
case.
*
'
It was thought also that the trawl was most
to
the ground—feeding shes, Gadoids ad
because
unable to get out of the way of the
apparatus,
'
This assuinçtion to some extent
of shes
abilit37 to learn by eXpeëî
'ence;
So far as
Sole are
,
sheïznan knows that of half
after
one another through a narrow way between rough ground—}
a favourite practice of trawlers in spiteof natuçal and arti—
cia‘l“ restrictions—it is not the rst eonngçthat is best
'
served.
is, an art— that ’regui;ee more study than
ning,‘ —andfthe »sherma that knows howkto change h1$
,
gear to suit the sh "! and the time _is the
that suoCeéâÿî
best.—' The Flat—shœ
'
.
as
changemthegear
‘
.
hdu…1yugh…ppd… …
;;
,Î , pet_c6ta'ge of_recapturesWithmayeai‘theîeafteif, has not
55
of the ;libeœœd
_
Specimens, except
, We may=
of the stock: escape
’
ymt … Andtht bn0tdthtvnfth
P1朜uïd bes“ePtcleanfromtheopengmmdsan ,