Sâl mon idae
Oncorhyn0hu5
nerka var.
7
_
lmon
BENEZAKE (iËfï\w
Sockeye salmon or Red sa
_
.:-.f
.
\0
N.oif.
__
'
bulb.olf.
bulb.olf.
"
\e
sac.dor.
lob.olf.
"
lob.olf.
hypos.
ch.opt.
__
tect.
Ch
:iyîos
tor.long.
_
_
,
—‘Ô'
iÏiîinf.
'°b'mf'
…
C'CbL
.
sac.vas.
,
vent-q,
N.5_.
emin.gran
emm.gran.
0
N.8.
_
,
c.cbl.
med.ob.
med.ob
N.9.+10.
med-sp.
med.sp.
_
N.9.+10.
L_____ËË
lateral
ventral
dorsal
Descriptive notes=
i‘äæîiif3x7ÿ; Ukë<. $lîl:%ËLïz“âëàÊîêLïVä
Adults attain about 60 cm‘in body length.
?ËËŒîËÏIZ (?ËÊ)
Body slightly elongated and compressed.
LL\.
Mouth large and cleft slanting.
®%Ëliî)fâ<,
Nostrils and eyes somewhat large.
ËË .
%:ËL'ÜA6
'
‘
Lateral lines slightly curved upward in the rear of opercle.
('l‘Hîäïäfäèf) lEËÎÊ—ÊL‘.
Color of the dorsal surface deep blue and ventral surface,
,
silver—white, observed somewhat purple color on sides of
,
'
body.
Both the male and female turn to bright—red in the
‘
season
of breeding.
Swim in schools during the day and night in upper waters
of the seacoasts.
Extent of migration wide.
Swimming movement quick.
-
Eat zooplankton and small fish located by means of
eyesight and olfactory sense.
‘
,
Around August and September shoot spawn in the rivers
and lakes…
.
The
hatched out fingerlings stay in the fresh waters for
'
about one to three years, then descend the rivers to the
.
sea
and grow to maturity.
-
,
Distribution extends from the coastal waters
Hokkaido,
Kuril lslands, Kamchatka, and Bering Sea to the waters of
'
'
west coàsts ofAlaska and Canada.
Caught by gill-nets and fixed—nets.
,
.
Large bulbus olfactorius adherèd to lobus olfactorius.
'
Lobus inferior small, but hypophysis and saccus vasculosus
'
well—developed.
Optic lobe and cerebellum very
.
'
Acoustico-lateral lobe andcrista cerebelli
well—developed.
'
_
_'
_
‘
_
,' .40—41
'
'
,
1
-
:
‘
,
‘
?
_
.
”
,
'
.
Oncorhyn0hu5
nerka var.
7
_
lmon
BENEZAKE (iËfï\w
Sockeye salmon or Red sa
_
.:-.f
.
\0
N.oif.
__
'
bulb.olf.
bulb.olf.
"
\e
sac.dor.
lob.olf.
"
lob.olf.
hypos.
ch.opt.
__
tect.
Ch
:iyîos
tor.long.
_
_
,
—‘Ô'
iÏiîinf.
'°b'mf'
…
C'CbL
.
sac.vas.
,
vent-q,
N.5_.
emin.gran
emm.gran.
0
N.8.
_
,
c.cbl.
med.ob.
med.ob
N.9.+10.
med-sp.
med.sp.
_
N.9.+10.
L_____ËË
lateral
ventral
dorsal
Descriptive notes=
i‘äæîiif3x7ÿ; Ukë<. $lîl:%ËLïz“âëàÊîêLïVä
Adults attain about 60 cm‘in body length.
?ËËŒîËÏIZ (?ËÊ)
Body slightly elongated and compressed.
LL\.
Mouth large and cleft slanting.
®%Ëliî)fâ<,
Nostrils and eyes somewhat large.
ËË .
%:ËL'ÜA6
'
‘
Lateral lines slightly curved upward in the rear of opercle.
('l‘Hîäïäfäèf) lEËÎÊ—ÊL‘.
Color of the dorsal surface deep blue and ventral surface,
,
silver—white, observed somewhat purple color on sides of
,
'
body.
Both the male and female turn to bright—red in the
‘
season
of breeding.
Swim in schools during the day and night in upper waters
of the seacoasts.
Extent of migration wide.
Swimming movement quick.
-
Eat zooplankton and small fish located by means of
eyesight and olfactory sense.
‘
,
Around August and September shoot spawn in the rivers
and lakes…
.
The
hatched out fingerlings stay in the fresh waters for
'
about one to three years, then descend the rivers to the
.
sea
and grow to maturity.
-
,
Distribution extends from the coastal waters
Hokkaido,
Kuril lslands, Kamchatka, and Bering Sea to the waters of
'
'
west coàsts ofAlaska and Canada.
Caught by gill-nets and fixed—nets.
,
.
Large bulbus olfactorius adherèd to lobus olfactorius.
'
Lobus inferior small, but hypophysis and saccus vasculosus
'
well—developed.
Optic lobe and cerebellum very
.
'
Acoustico-lateral lobe andcrista cerebelli
well—developed.
'
_
_'
_
‘
_
,' .40—41
'
'
,
1
-
:
‘
,
‘
?
_
.
”
,
'
.