FISHERY RESEARCH
33 5
.
'
tions have been wiped out ; several species of whales have
come dangerously neatcomplete extermination and what
_
were once ourishing whale sheries practicay no longer
exist.
And it seems certain that sooner or later there
_
_
will be even a risk of depleting the stock of certain sh.
It has been mentioned previously that the plâice, for
'
instance, appear to be being shed out of the North Sea to
a dangerous extent.
"
.
,
What might be regarded as one of the largest experiments
ever carried out was a direct result of the great war. For
ve years the North Sea Was virtually closed to the steam
trawlers ; anyone who went out to sh did so at his own
'
risk.
Conseqneny it can be said that the great plaîœ
'
grounds of the North Sea. were almost completely rested.
This aorded a real opportunity to see whether man’s
eorts as a she:&an could actually—f have any eect on the
stock oi sh. present : so vast an area or” water.
Îî: s::s'cs c:î :: :::d:gs of plaice at the big Ê————°Hâ
Parts : the 753: ight :: te the beg”::.:g oâî the war V=Täîä
3:8W:.
?: la:i::: : the ïæ:£ E».-……“f ‘<”lΣtlÿ :’3'lr::g
the ezî c-î :: v:
::s‘êê Î::ngît abs—ni h7 “lé n‘a—:
ca:‘zes :: si”. :::-7
s£:a :: : t‘a-e :rær—s ::î.: ::
war, @: T::lî :: smc}: 0:—' :::: î:azre 12632:5 31:93:35
_
and so ai::â :i::.a‘a“.æ ezädenœ @î the :ect: :
?
In the :sr year after the war the ‘eatches were
:ncn
greater than in the years ber'ore the war.
The œt€£ê£ W€fë
also characterized by the presence
of very great nnmheI£
Of old, poorly nourished sh, the grounds‘bäng
_
crowded.
But in the succeeding years
the numbers
of
plaice caught- became less and less until now we areîonce
more down to, or even below, pre-war gures.
The averaäe
size of the sh too is much smaller than that «of those caught
33 5
.
'
tions have been wiped out ; several species of whales have
come dangerously neatcomplete extermination and what
_
were once ourishing whale sheries practicay no longer
exist.
And it seems certain that sooner or later there
_
_
will be even a risk of depleting the stock of certain sh.
It has been mentioned previously that the plâice, for
'
instance, appear to be being shed out of the North Sea to
a dangerous extent.
"
.
,
What might be regarded as one of the largest experiments
ever carried out was a direct result of the great war. For
ve years the North Sea Was virtually closed to the steam
trawlers ; anyone who went out to sh did so at his own
'
risk.
Conseqneny it can be said that the great plaîœ
'
grounds of the North Sea. were almost completely rested.
This aorded a real opportunity to see whether man’s
eorts as a she:&an could actually—f have any eect on the
stock oi sh. present : so vast an area or” water.
Îî: s::s'cs c:î :: :::d:gs of plaice at the big Ê————°Hâ
Parts : the 753: ight :: te the beg”::.:g oâî the war V=Täîä
3:8W:.
?: la:i::: : the ïæ:£ E».-……“f ‘<”lΣtlÿ :’3'lr::g
the ezî c-î :: v:
::s‘êê Î::ngît abs—ni h7 “lé n‘a—:
ca:‘zes :: si”. :::-7
s£:a :: : t‘a-e :rær—s ::î.: ::
war, @: T::lî :: smc}: 0:—' :::: î:azre 12632:5 31:93:35
_
and so ai::â :i::.a‘a“.æ ezädenœ @î the :ect: :
?
In the :sr year after the war the ‘eatches were
:ncn
greater than in the years ber'ore the war.
The œt€£ê£ W€fë
also characterized by the presence
of very great nnmheI£
Of old, poorly nourished sh, the grounds‘bäng
_
crowded.
But in the succeeding years
the numbers
of
plaice caught- became less and less until now we areîonce
more down to, or even below, pre-war gures.
The averaäe
size of the sh too is much smaller than that «of those caught