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N.Z. MARINE DEPARTMENT-FISHERIE,S BULLETIN No. .į

N.Z. MARINE DEPARTMENT-FISHERIE,S BULLETIN No. .į

N.Z. MARINE DEPARTMENT-FISHERIE,S BULLETIN No.

.ç N.Z. MARINE DEPARTMENT-FISHERIE,S BULLETIN - No. 9 Fisheries bulletin (N.Z. Marine Dept.) no. 9 (1948)

  • Page 2 and 3: f{ u .yl f'*:i t" ,{. Srt 'u.'=-l!i
  • Page 4 and 5: PRINTED BY I{i H. TOMBS I,TD., WELL
  • Page 6 and 7: CONTENTS-Continwed Losses rN Hlrcrl
  • Page 8 and 9: Fisheries bulletin (N.Z. Marine Dep
  • Page 10 and 11: Fisheries bulletin (N.Z. Marine Dep
  • Page 12 and 13: areast much fished by visitors, the
  • Page 14 and 15: speaks of his in lg6g as ,,the firs
  • Page 16 and 17: Loch Leven and Scotch Burn trout. S
  • Page 18 and 19: supplemented in their natural spawn
  • Page 20 and 21: ury (later, North Canterbtrry) Soci
  • Page 22 and 23: arìges' inland i' the wellingtou P
  • Page 24 and 25: easollal)ly productive tt'otrt wate
  • Page 26 and 27: l¡oth a wider dispersal and local
  • Page 28 and 29: stream, fully one-half of the surfa
  • Page 30 and 31: spawning areas. Thus a natural fall
  • Page 32 and 33: other and less favoured waters. Aga
  • Page 34 and 35: almost cleared the stream of large
  • Page 36 and 37: Ponrahaka lìívcr-tributary of thc
  • Page 38 and 39: with Hope that some trout follow wh
  • Page 40 and 41: groupiltg fronr l0 to lg inches wer
  • Page 42 and 43: (¡¡ o NORTH River Lure Period 188
  • Page 44 and 45: that anglers of the present day, wh
  • Page 46 and 47: These rivers, in contrast with many
  • Page 48 and 49: McKay's figures are accepted as rel
  • Page 50 and 51: other equally possible explanations
  • Page 52 and 53:

    Stream Otapiri Pomahal

  • Page 54 and 55:

    Features in the Manawatu fishery ar

  • Page 56 and 57:

    annual revenue is shown for the fir

  • Page 58 and 59:

    461 T A.ç ¡t^,\ SOTMI ISIANI) 8X]

  • Page 60 and 61:

    no attempt is made to relate qualit

  • Page 62 and 63:

    Florokirvi River-a smaller and nnim

  • Page 64 and 65:

    (1) 1,100 eyed ova and 1,400 fry. (

  • Page 66 and 67:

    matter what thé species is, in eac

  • Page 68 and 69:

    : rn the three years mentioned, the

  • Page 70 and 71:

    Taupo Southland North Canterbury La

  • Page 72 and 73:

    LOSSES IN ARTIFICIAL PROPAGATION Ea

  • Page 74 and 75:

    ivers in a trapping season þossibi

  • Page 76 and 77:

    O TABLE XIT Pre-eyed Ova of Brown P

  • Page 78 and 79:

    Losses of brown trout ova and alevi

  • Page 80 and 81:

    losses were recorded, but in 1937 t

  • Page 82 and 83:

    ïn the united States, Fish (1939)

  • Page 84 and 85:

    Loss of eyed ova and alevins (12%)

  • Page 86 and 87:

    (1) \Mhat proportion of the eggs wh

  • Page 88 and 89:

    Fronr all 77 strea¡ts collections

  • Page 90 and 91:

    stream-bed, where gravels are loose

  • Page 92 and 93:

    v/ash eggs out of redds.. w!e1 arti

  • Page 94 and 95:

    that a year aftet fingerlings of ab

  • Page 96 and 97:

    ¡.?*PË& " Iìxamining sarlples of

  • Page 98 and 99:

    shed below the trap. The number tak

  • Page 100 and 101:

    ànglers. possessing licences issue

  • Page 102 and 103:

    were vulnerable to poaching, was se

  • Page 104 and 105:

    A conservative estimate of average

  • Page 106 and 107:

    The felv stocked waters known, wher

  • Page 108 and 109:

    is so, even although a major propor

  • Page 110 and 111:

    e4) GENERAL CONCLUSIONS The evidenc

  • Page 112 and 113:

    portray any distinct advantage for

  • Page 114 and 115:

    i,s'. Ngougotzrlra ìÌivcr-lrrirrc

  • Page 116 and 117:

    to anglers differ, relevant data ar

  • Page 118 and 119:

    DTSCUSSION In so brief a treatnrent

  • Page 120 and 121:

    gro\Ming season ancl_ consequently

  • Page 122 and 123:

    where six to eight million trorrt a

  • Page 124 and 125:

    the fish planted must meet competit

  • Page 126 and 127:

    except 2,4ú ninbow, w€re release

  • Page 128 and 129:

    PART IV Future Management and Devel

  • Page 130 and 131:

    accomplish the purpose, for with th

  • Page 132 and 133:

    of fisheries where experience has s

  • Page 134 and 135:

    different in the case of different

  • Page 136 and 137:

    Gcueral lìefuse-litter obscrvecl s

  • Page 138 and 139:

    one and a half tons a year to produ

  • Page 140 and 141:

    inlancl lakes, but no recorcls were

  • Page 142 and 143:

    fishes are desirable could be deter

  • Page 144 and 145:

    Studies by Cairns (1942) are in clo

  • Page 146 and 147:

    end the development of hydro-electr

  • Page 148 and 149:

    The large black shag (P. carbo), be

  • Page 150 and 151:

    \tLrT)t)\- ( Ill,_ I,lK ( Lalic .\l

  • Page 152 and 153:

    Additional information, especially

  • Page 154 and 155:

    greatly exceeds the angling catch,

  • Page 156 and 157:

    improvements vastly exceecls in bul

  • Page 158 and 159:

    this paper, reference was made to \

  • Page 160 and 161:

    lakes early in the season nray be m

  • Page 162 and 163:

    (a) The overlapping of the trout-sp

  • Page 164 and 165:

    society's policy. Tl.re scale of op

  • Page 166 and 167:

    ecaptrlred at a greater size, or- t

  • Page 168 and 169:

    'l.-¿.' './ preselìce or absence

  • Page 170 and 171:

    Trr a series o[ Soutl-r Islancl wat

  • Page 172 and 173:

    oL9,U7. A li'ritation of nine flsh

  • Page 174 and 175:

    warranted than these differences af

  • Page 176 and 177:

    taken, clevelopmental works beyond

  • Page 178 and 179:

    evenLle at all, while sorrre large

  • Page 180 and 181:

    nay be satisÊed without reduction

  • Page 182 and 183:

    e deferred. However, possibilities

  • Page 184 and 185:

    AC KNO WLED GMENTS The writer grate

  • Page 186 and 187:

    Fornsrrn, R. E. (1938r)-Mortølìty

  • Page 188 and 189:

    Sracrrrew, w. H. (1892)-Trout ôn N

  • Page 190 and 191:

    came dou/n, some 2,348 were ceught

  • Page 192 and 193:

    elow the trap, eggs stripped and re

  • Page 194 and 195:

    irr that or any other yeer, were ca

  • Page 196 and 197:

    from 1901-02 to 1922-3, amounting i

  • Page 198 and 199:

    APPENDIX E Change in Size of Trout

  • Page 200:

    Fisheries bulletin (N.Z. Marine Dep

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