THE FOOD QUESTION
325
unwarranted assumption, about 13 per cent. of the North
.
Sea region is not suitable for trawling and thus o“ers prO‘
tection to the species.
"
There is always the feeling, hoWever; that sOmething
should or might be done by man to iCrease or ”improve
the stock of sh in the ’sea, as agriculturaliSŒ have improved
the yield of the land; :And from time ;tO'time glowing
accOunts
have appeared of growing Plaice “ like cabbages
in a back garden.” This, indeed, has to some extent been
accomplished in the Limijrd, where the elever' Danish
naturalist, Dr. C. ]Oh. Petersen, has developed a 'System
of helping the young Plaiœ over barriers at-the mouth into
the, rich feeding grounds within. In imitation of this”,
experiments havebeen made in the transportation of Plaice
from the inshore areas of Denmark and Holland out to the
Dogger Bank, Where they have thrived very well, in small
quantities. But the North Sea is not like the Limfjord.‘
în the latter there .is no competitive shing and no Plaice
except" the transplanted, and. agSmall number ' makes =a . big“
:To make .:any;gappreÇiable' fdiŸerenfee'îïinÀthe
'
forty-ve million
ÎPlaièe'landèd annuallyifr'om
"
_
_
the
neoessitate:the transportatiOn
more
'
than:theÿîknOanùCtûatiô,thatis',
than ve million
'
'
Andthenthey'wonld have—’tO'be1‘Î?pfôtéctèdf” there, as
"
Ithas beenthought-also that thedecrease
'
ties of large Plaieeis a cauSe'of anxiety.— This pheômèh0
'
,
has now been:fairly Wellstudied ina number of regions, on
_NorWegian banks, in theKattegat 'as-Well as in the' Barents
'
Sea.
It ‘means that the Old, slow—growing
“
acCumulated
î
on" ;a- neW,shirig
’
ground is more “or
'
ï
shed.
stock
growing mere-rapidlytakes
,
Î it'S: P18œ{" For ÉèXämplèä
has
,
-
'
.P—laice oft‘hÏe BarentslSea geaçh.än gageÿo_ffs1xty Ô'r mor€
’
butthe
;
.
'
,