28
THE BIOLOGY OF FISHES
takes not a few, but there is some justication—apart from
feeding his kind. If the Herring, in spite of all this persecution, is able to live for more than twenty years, the Surplus
that escape each year
must be greater even than the immense
quantities taken. If man did not helpto keep down their
numbers,
Herring would have to turn upon themselves ;
indeed, they feed upon their own eggs and fry_ at the present
time, as well as consuming large quantities of Sand—eels.
'
_
f
In older days, before the intensive herring sheries had
begun, it used to be said that a man standing on the rocks by
the shore could sh up as many .herrings as he wanted with a
bucket at certain times _Of the year, The fjords of Northern
Iceland until recently were also lled peri0dieallÿ
same
'
extent.
On “the western side of the Atlantic, Newfoundland,
Nova Scotia,landthe States,. the same:story i_s;îtold.- The
quantities of the Herring” in theseas
,
anything we
,
can“.— imaging and this
‘fr9mgtheir
-fecUnditÿ,fW—hiçÿh _,is
row, butte "atheirÏÂability
'
‘
other members
of:
-
have the—same; ability; WhlCh Comes :fromapeculiar disposi-”
'
tion =QfÏthe air—bladder.—
this structure and these
_
habits they have naturally the pick of the food at all .seasons
;
-
…
.
_
_
_
‘
_
An interesting thing about the Herring is the effect upon
-
,
the food they eat. , If they
vitaïünè—‘chopepo dsand
'
,
…
cond1üonbuufthwtake toPteropods(Lzmacma) their
’
food or.
i
said to become
__
theyfeed
Ÿ
upon small jellÿ—shes—but
…
Pteropods. The
NOrWÇgiaï-i
Ï'Wh0 know the
_
Pteropod symptoms
they have got
_
r‘îid…of the contents of.theirstornaçhs; …
__
__
_
_
__
T_he greatest .;we4alt‘h—= of shes lives within the hundred
-_
_ _ _
fathoms Zone, and-the great sheries of the world, in the
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Sea of ]apan,;andelSe—.