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

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no attempt is made to relate quality of angling with the proþortionate demand of the residents for it. The wide disparity in numbers of fish comprising seasonal catches and the small number of returns from most districts make it unsafe to s from data piesented ln the table. In general, however; is sugçsted between the quality of angling offering ancl ndicated by sales of licences. 481 Fisheries bulletin (N.Z. Marine Dept.) no. 9 (1948) Q ü Y
(Above) I)rought conditions at Quades Crossing on the Hae Hae 'Ic \,loana lìiver-an inrportant spawning sul¡system of the Opihi. This is one of many South Islarrcl east coast streanrs u'here droughts frcrluently causc substantial loss of fish. In several clistricts cflorts havc l¡eert concerttrate
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.ç N.Z. MARINE DEPARTMENT-FISHERIE
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Ito -il ,A f { I { tIô i N E W ZEA
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t ta t CONTENTS Part L-Historical I
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? e CONTENTS-Continued' DNiInonuBNr
Page 9 and 10: Plate t, Text LIST OF' ÍLLUSTRATIO
Page 11 and 12: PART I Historical INTRODUCTION 1.ur
Page 13 and 14: (15)Hitherto,restrictionsonangling,
Page 15 and 16: the transference of fish and had to
Page 17 and 18: 187G80-Releases of brown trout were
Page 19 and 20: have been successfully introducecl
Page 21 and 22: poltv'ef, alx1 have clisclntgecl wa
Page 23 and 24: Reference to forest fires causing h
Page 25 and 26: shadowed urater, and that the penet
Page 27 and 28: occurred fairly generally, may be n
Page 29 and 30: ö drainage has led, it is said, to
Page 31 and 32: The existing laws, which are a strr
Page 33 and 34: years ago" from the Lee. In 1883 he
Page 35 and 36: Orcti Ri 11 (St|. Is.) bct¡-een Di
Page 37 and 38: eaches of the Oreti the fish were o
Page 39 and 40: iÀr River !Vaipa.hi ....'. tt Slia
Page 41 and 42: N) \o River Lure Period 1880-18m' 1
Page 43 and 44: CHA}{GE I}f SIZE OF TROUT-SOUTH ISL
Page 45 and 46: fr) River Lure Period 1880-1890 189
Page 47 and 48: (¡ of sorle inadequacy of specific
Page 49 and 50: fallen in inverse proportion to the
Page 51 and 52: without a corresponding decrease 'o
Page 53 and 54: the Waipahi, increase in numbers bu
Page 55 and 56: \iVhile the number of anglers has i
Page 57 and 58: cent. in the smaller east and west
Page 59: Data from the special licensing are
Page 63 and 64: PART II Recent Management of Fisher
Page 65 and 66: important sources of income in the
Page 67 and 68: v aim 'is solely one of transfer, i
Page 69 and 70: the same as the number of eggs stat
Page 71 and 72: û Exclusive of Taupo and Rotorua t
Page 73 and 74: handled where eggs are collected, a
Page 75 and 76: Í- stage.Subsequentlosses,aSgivenl
Page 77 and 78: L The reports of the Ballarat Fish
Page 79 and 80: J be seen, when abnormal losses are
Page 81 and 82: '] as -to losses in two lots of bro
Page 83 and 84: 715,000 fish distributed. This numb
Page 85 and 86: which those estimates were based an
Page 87 and 88: CONSTRUCTION OF SPAWNING REDDS OF B
Page 89 and 90: A con-iparison of losses recorded i
Page 91 and 92: to time, abnormal flooding, occurri
Page 93 and 94: It .n,otrlcl appear fronr the facts
Page 95 and 96: 'I'he fìoocl-trrcached rack in thc
Page 97 and 98: oclies has been devotecl to recorcl
Page 99 and 100: In 1935, which was a peak collectin
Page 101 and 102: of the examìnation ol 2,883 birds
Page 103 and 104: stations in the country in a year.
Page 105 and 106: fry of rainbow trout recorded as re
Page 107 and 108: Ë eggs. The "bag" of the other rvh
Page 109 and 110: (t seasons, have used stationary li
Page 111 and 112:
t PART III Recent Investigational W
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LAKE ALEXANDRINA_SOUTH CANTERBURY O
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TABI-E XIX Duration of Species Size
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ti 't becoming available. The short
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- is nothing to srlggest that any s
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S-inch fingerlings can be pr:oducec
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-ì has shown that the estimated to
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,t Its contributiori to the èatch
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Discussion The various overseas stu
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there are fundamental biological re
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lnanagement to leave well alone anc
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f of the lakes, where, in the absen
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RIVER POLLUTION-Thc photographs ill
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If man is to improve the fertility
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excess, but to the quantity of t.he
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with incligenons forms only where t
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-È-' e tial increase of trout. Con
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here. At present, it is justifiable
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t- of fish from streams. Under tr)r
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Setti;rg an cel baskct u'hcrc it is
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It will be observed from the forego
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d as the present v/fiter has on the
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Environment Improvement-Physical LI
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(3) \A/here the deficiency of cover
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esselltial. Because, r,vith excessi
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,.) in rivers of considerable size
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( 1) The relative al,seuce of angle
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!r'i11 not necessarily be the optim
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fo¡gariro lìivcr-Iì¿unous rainL
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¿> lin,it to llin. would result in
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egulations can have no general sign
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tìature of this iure nc¡r the rno
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è organization in the provision of
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larger ones. However, larger societ
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L G o 4 equitably to obtain a more
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ç o ç ,) of negative interpretati
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0 õ o paid in licence fees, can le
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I ,} o ê REFERENCES Arrrl, K. R. (
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I Jl f Neeouau, Peur, R., & Slerr*.
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J I APPENDIX A The 1941 Census of t
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!L 't ,APPENDIX B Interference with
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fl tf -ì APPENDIX C Injuries to Tr
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APPENDIX D Claims of Success of Hat
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å t.: I -'l t ta ¡ ,} f (3) Cessa
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maxirnum'density. It is possible al
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N.Z. MARINE DEPARTMENT-FISHERIE,S BULLETIN No. .į

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