FRESIIWATER FISI{EIìIES
.
@
ÛIARINE DEPARTMENT
INVESTTGAIION REPORT
{08 N0.
AccT,rMATrsATroN sOcrETy
76
DrsrRrcrs: North canterbury,
Ashburton, south canterbury and waitaki varley.
TITIE 0F -JOB: Sa1mon Spawning Survey
196g
oBJEcrrvES: To assess the 19ag quinnat salmon spawning run.
.
TNTRODUCTION
fn the period. 24 May 1968 to 2l
in the foll-owing waters.
(a) Gt enariff e Systern
(¡) Hakataranea River
(c) Awakino Stream
(¿) Deep Creek - Mesopotamia
May 19AA, suryeys were
mad.e
Zl
May 19Oe
ZJ May 196g
24 May 19Oe
26 I,Uay ßOg
MIJTHODS
Red'd's, J-ive and' d-ead- fish were counted- from stream
banks on
each survey by a two man team. The areas surveyed- were the
same
as those checked. from 1962 to 196?.
FTNDINGS
(a) Rakaia River System
(i) Gl-enariffe Strea-ur
since tr'ebruary 1j66 a permanent two-way fish trap has been
operating in the Glenariffe stream. At the time of the survey,
a larger number of fish had. passed. through the trap, than had.
1'
the brid.ge. spawning f ish were also seen at the Mt FLorence
brid.ge. llhe river was crear, but cloud.y weather and light'
d.rizzle mad.e counting cond.itions about average.
large nrrmbers of spawning trout were seen as in previous
years.
(ii)
Awakino
The stream had. a good. fLow. rt is, however, becoming
very overgrown in the lower reaches from the road. brid.ge to the
mouth.
CONCIUSIONS
this
.A.lthough only one n¡n of the survey areas was carried. out
season, aJr increase of red.d.s has been noted. in the
Gl-enariffe system. lhis j"s borne out by resuLts frorn the trap.
Howeverr generally no increases in nr¡mbers are noted. from other
yea-rs a¡d. in some cases
a slight d.ecrease was apparent.
It is felt that further investigation should. be carried. out
in regard. to frood.j-ng and d.rainage in the Deep creek system of
the Ra:egitata.
Executed by: J.R. Ga1loway, Tech¡ical
I'iel-d. Officer
S.J. lVing, Technical
Field. Officer
Supervised. by: R.Vü. little,
Senior
Fisheries Scientist
REFER]]NCES
Salmon Spawning Survey 196O - Job No. 6?
New Zeal-a¡ed Marine Department
No. 9 (Derisley F. Hobbs)
Issued. March 1970
Fisheries Bur-retin
SAtrMON SPAWNTNG 1q67
Systen
Date
Alive
Glenariffe
Eyd.ra Waters
Deep Creek
Hakatarpmea
Awakino
.r.67
Cond.iti-ons
Sa1mon
Red.d.s
Dead.
27.r.67
1t .6.67
409
175
,74
68
1r7
1+.' .67
1168
624
170
119
1O92
11r2
982
11
1+.6.67
12.r.67
2r.r.67
61'
15.6.67
1744
1428
.r.67
4VO
16.6.67
1t
24.r.67
17.r.67
2+.' .67
16.6,67
2rB
,r8
199
tt+
476
497
217
29
I
11
20
1'
10
o
14r+
2t2
Fair to Good.
Poor at times d.ue to rain
Poor
Fair to
Good.
t54
Poor, d.uII weather
227
612
Excellent
,67
Good.
Good.
101
219
Excellent
o
2
6
Excellent
too
GoodGood.
Good
Good.
+-
a
S.A.IMON SPANTNING 1q68
System
Date
Cond.itions
Salmon
Redd.s
AIive
Dead.
Glenariffe
27
.r.68
1186
425
286
Good.
Deep Creek
26.r.68
877
621
,r1
Good.
Hakataramea
2r.r.68
2t1
100
217
Average
Awàkino
24.r.68
1'
17
o
Poor
vl
a
TABLE
I
GT,n{ARITFåIDI]L.-T TRjP 1q6B
SÁJ-,MON
Number
f.verage
length
(Cns)
Average
Weight
(Grns)
Äverage C/f
Metrlc-Corbeü
,r97
(12rb 5oz)
1oB
1492
77,7
( Jo.60" )
l'enales
76.6
,68+
114
76,O
56+5
Ulal
e
s
1781
Both
127'
(to,25")
(
(ro,oo")
Ratio M : tr'
rzru
Boz)
(121b 7oz)
1 z
-
19
-
+1
111
Size
CrlF Range
Range
Length (cns)
161
(1g> to (58)
+6,' - 96.0
(18,2r") (r7
'/O to
54,2
qZ
(2r)
184
(66)
-
(21
Weight (gns
,7r"
)
- 92.'
.2r") - (76,50")
1611
(¡ru)
8845
-
72rB
2¿tg6
(5rb Boz) (teru)
40
1,19
.t
BROWN TROUT
ilÎaI e s
21
Fenrales
26
,1 .2
16+0
(2'1 .oO" )
(lru
,V,B
17BO
(21
RatioM:FBt1
,2r")
(19r.b Boz)
(¡ru
looz)
15oz)
109
112
-
o9)
96
-
(40)
91
Gt)
-
or)
\]
a
11'
(
49)
11'
(49)
42.O
-
60.0
(16.50") - (27.øO")
.B - 69,'
('16.50") - (z7,oo")
41
(rru- 14oz) - (5ru 6oz)
8r2
2419
79'
(1rb lzoz)
'?Lt'
(Blb 4oz)
1
968
Î.ÀBLE
No, of
Females
Nr:¡bers of Ova Remaiaing
Ova Remaining
1
291
to 10
16'
,6%
11
to
20
20
19
to
'11
6,r%
Nr¡mber of
Femal-es with
Ova Renaining
Number
of Fenales
Tagged
100
.6%
Fenales witb
No Ova
to.4%
200
Over
20O
Not Spawned.
,4
1+
7
+,8%
2.+%
Number of
Fena1e lrost
lags
18.r%
Nunber of
Fenale
Tags Found.
Number of
FenaLes Not
Recovered
?6'
2B
64
665
69.6%
Percentage Fe¡nales Recovereil
to
T]]
Number of
291
1781
100
1t+
TÄBIE
Total
II
+2.8%
57 ,?/o
IABLE IT.IÀ
Tota1 Number
of
Ma].es
Tagged"
Number of
Males
Recovered.
1492
1010
1Oú/o
67.7/o
of
Males I'ost
Nr-¡mber
rlags
121
Number
of
MaIe [ags
Number of MaLes
Not Recovered
Found
,o
482
72,1%
æ
t
FiG.1
GLÐ{ARI¡FE TRAP
T SALIfO}T
UN
nale
._500
f
ernale
l-dr
U)
.¿3
Çr
q{
o
F{
(Ð2
.o)
E
j
,--¿=
FIe.2
GLn{ARITT-FE TRAP
1968 - QUII\n'IAî SALI.ION
LEI{GTH TREQUEÌ'TCY
na]-e
l+o
fema]-e
I
c)
rc
(i
+l
C)
lf
D
^
\
\
E
\
/
\
)
length in
cnn.
tr
E
tr
Ð
!ide
GLENARTFT{E TRAP
i 968 .
LEVGÎF
BRO\UÍ TROUT
FREQT]-TNCY
ma]-e
fema]-e
.4
û
.r-l
q{
îA5
o
S-r
q)
.o
ça
á
É
o
50
55
length in cn.
6o