316
,
THE BIOLOGY OF FISHES
;
and the currents soon carry them away from the actual
spàwing ’ground’. Hence the dierent stages of
ment have to be taken into account, and it is probably thé î:
earliest stages only, if samples are taken constantly
the whole spawning period, that can be considered inthe
estimate of the actual quantities of sh present.
Worked out
therefore, we see that
method remains more or less an ideal to be aimed at
or two particular cases,’ but unrealisable with any
degree of accuracy.
'
To put the matter bluntly, we have to _:
recognise our own limitations. Even if our knowledge 6fi
details were adequate, we cannot be everywhere at once, and'f”_
the“, multiplication of vessels and investigators brings Titi
_
anéther'— series of practical questions, personal
7
and
has shown to be not
least-f of
in the study
'
*
:…‘Α
Ÿ
"
-
*
,
'_
,“ farming
”
of the» sea ”is a similar idea.
neither sows nor does he manureÎOr‘cleäraway—the Weeds;
he only reaps. The Comparison is therefore .three‘
fallacious, and _theregulatio of thefourth part, the reaping;
a number of:“ grave
have
,
t0'îd0With‘ farnng'. =?
…
'
“
.i—f
,
"
:'—'_.1f.:*t,g
;
‘ _ . Less arbitiouS-"inl aspect, :but
_
areth‘e'conceptionsput
,
..
naturalist, C.“ G. Ich—. Petersen!) Insteadoftrymgtobreak
Whole
—Sheaf
.
Of
—
”:.,a'c' onetmePeærænhas
' -£:
'
emphasisedthmpotnoffmkxngtnbfolnd
'
,
whetherana1m1spractxcaäeandattamableIf we wish
-
'
Ï
au areatheshmgtdlsushowmÿaretakenah’d n1arlung
expenmentstelluswhatproporüonsescape Thuswe -
have learnt that moreescapedurmg the year
if WegWiSh*to ÎknowWhet-her One, area
for”' a speCie‘s, Wè;îhaVô to determine the kmdsof
food selected by that species, for example;
,,;Î
then the:,quantitiæ of
particular
the-;:gæunjÇlsü
,
,
THE BIOLOGY OF FISHES
;
and the currents soon carry them away from the actual
spàwing ’ground’. Hence the dierent stages of
ment have to be taken into account, and it is probably thé î:
earliest stages only, if samples are taken constantly
the whole spawning period, that can be considered inthe
estimate of the actual quantities of sh present.
Worked out
therefore, we see that
method remains more or less an ideal to be aimed at
or two particular cases,’ but unrealisable with any
degree of accuracy.
'
To put the matter bluntly, we have to _:
recognise our own limitations. Even if our knowledge 6fi
details were adequate, we cannot be everywhere at once, and'f”_
the“, multiplication of vessels and investigators brings Titi
_
anéther'— series of practical questions, personal
7
and
has shown to be not
least-f of
in the study
'
*
:…‘Α
Ÿ
"
-
*
,
'_
,“ farming
”
of the» sea ”is a similar idea.
neither sows nor does he manureÎOr‘cleäraway—the Weeds;
he only reaps. The Comparison is therefore .three‘
fallacious, and _theregulatio of thefourth part, the reaping;
a number of:“ grave
have
,
t0'îd0With‘ farnng'. =?
…
'
“
.i—f
,
"
:'—'_.1f.:*t,g
;
‘ _ . Less arbitiouS-"inl aspect, :but
_
areth‘e'conceptionsput
,
..
naturalist, C.“ G. Ich—. Petersen!) Insteadoftrymgtobreak
Whole
—Sheaf
.
Of
—
”:.,a'c' onetmePeærænhas
' -£:
'
emphasisedthmpotnoffmkxngtnbfolnd
'
,
whetherana1m1spractxcaäeandattamableIf we wish
-
'
Ï
au areatheshmgtdlsushowmÿaretakenah’d n1arlung
expenmentstelluswhatproporüonsescape Thuswe -
have learnt that moreescapedurmg the year
if WegWiSh*to ÎknowWhet-her One, area
for”' a speCie‘s, Wè;îhaVô to determine the kmdsof
food selected by that species, for example;
,,;Î
then the:,quantitiæ of
particular
the-;:gæunjÇlsü
,