The Relative Value of West Coast and Westland Rivers to New Zealand Anglers
Total Page:16
File Type:pdf, Size:1020Kb
The relative value of West Coast and Westland rivers to New Zealand anglers Fisheries Environmental Report No. 75 :::i'v.1$ ....'i:¡.c./.9t"::) -¿.,¿-. j ?---tìi--Ã.^t. .r ..1'.:",i'l!.f '. # ;#f8l ..............:tl, htt ,,'f\t I Fisheries Research Division N.Z. Ministry Fisheriesof Agricultureenvironmental report no. 75 (1985) and Fisheries lssN 0111-4794 I 'l I I Fisheries Enviqonmental Report No. 75 I ti, The relatìve value of West Coast and Westland rivers to New Zealand anglers by J. Ri chardson L.D. Teì rney M.J . Unwi n Fi sheries Research Di v'isi on N.Z. M'in'istny of Agriculture and Fisheries Wel l'ington Se ptembe r 1 985 Fisheries environmental report no. 75 (1985) FISHERIES ENVIRONMENTAL REPORTS This r"epont is one of a series of reports issued by F'isheries Research Divisjon on important issues related to environmental matters. They are i ssued under the fol ì owi ng cniterì a: (1) They are'informal and should not be cited without the author's penmi ssi on.* (2) They are for limited circulation, so that persons and ongani sati ons normal ìy receì vi ng Fi sheri es Research Dì vi s'i on pubì i cati ons shoul d not expect to recei ve copi es automati ca1 1y . (3) Copì es wi I ì be i ssued i ni t'i al ly to organi sati ons to whi ch the report i s di rectly rel evant. (4) Copies will be issued to other appropriate organìsations on nequest to Fisheries Research Div'is'ion, Mìnistry of Agriculture and Fisheries, P.0. Box 8324, Riccanton, Christchurch. 'l'ì (5) These reports w'i be i ssued whene a substanti a I report i s requined with a tjme constraint, ê.g., a submission for a tribunal hearing. 'i (6) They wi 1 1 al so be i ssued as nterim reports of on-go'i ng env'ironmental studies for whjch year by yean or intermittent reporting is advantageous. These jnterjm r"eports will not precìude formal scientific publication. Thi s report 'is exempt f rom thì s cond'itì on. MAF Li brari es catal ogu'i ng-i n-publ i cat'ion data. RICHARDS0N, J. (Jody), 1950- The relative value of West Coast and Westland rivens to New Zealand angìers / by J. Richardson, L.D. Teirney, M.J. Unwin. - Welìington : Fisheries Reseanch Divìsìon, New Zealand Ministry of Agriculture and Fi sheni es, 1985. 101 p. - (Fisheries environmental neport, ISSN 0111-4794 ; no. 75) 1. Rivers--New Zealand--West Coast 2. R'i ver"s--New Zealand--Westland 3. Fi shj ng--New Zealand--West Coast 4. Fi shi ng--New Zeal and--ldestland I. Teirney, L. D., 1948- II. Unwin, M. J. ISBN 0477032249 Fisheries environmental report no. 75 (1985) 1. 2. 3. 4. 5, 50 50 Fisheries environmental report no. 75 (1985) Pa ge Append'ix I . West Coast and t^Jestland Acclimatisation 53 Socì ety su rvey bookl ets Appendi x I I. lvlethod of estimatìng ang'ler usage 75 Appendi x I II. Frequency hìstograms of anglers' 1-5 81 natìngs assigned to the 'importance, or value, of each niver they fished and to each of seven factors which contribute to the angl i ng experience on 22 WCI,J rivers which attracted more than 60 estimated angì ers Appendi x IV. Frequency histograms of anglers' 1-5 93 rat'ings assigned to the ìmportance, or value, of each river they fìshed and to each of seven factors which contribute to the angìing experience on 16 WC[ll rivers which attracted 30-60 estimated a ngl ers TABLE S 1. Measures of angler use of WCI{ nivens 14 2. Estimates of angler use and importance grade, on vaìue, 16 of 22 l,lCVl rivers 3. Assessment by anglens of seven factot"s which contrjbute 18 to the angìing experìence provided by 22 l^JCl^J rjvers A. Estjmates of ang'ler use and importance grade, or va1ue, 20 of 22 WCI^I ri vers annanged accordì ng to di stance from the anglers' homes 5. Popularity of individual reaches of 22 l,JCl¡J rive rs 22 6. Preferred angling methods used on 22 WCW rivens 23 j jes 7 . Parti ci pat'ion i n other necreati onal act vit 24 assoc'iated wì th angl i ng on 22 WCluI ri vers 8. WChl rivers of reg'iona'l/nat'ionaì, regìonaì, or local 4B i mportance FIGURES 1. hlest Coast and l¡lestland Accl'imatisation Socìety districts Fisheries environmental report no. 75 (1985) 3. To determ'ine from this infonmation rivers wh'ich constitute fisheries of national, regional, and local ìmportance. 4. To obtain a data base for future work. Lake fisheries were deliberately excluded from the survey because it was considered impr"actìca1 to design a singìe questionnajre capable of coping adequately wìth the full range of lake and river fisheries. A questì onna'i re bookl et, conta'i ni ng a l i st of ri vens wi thi n a gi ven acclìmatisation district, was maìled to anglers in each society. Anglens wene asked to identify rivers which they had fished oven 3-5 years and to assess for each river its ìmportance to them (on a 1-5 scale) and the relative importance of seven listed quaìit'ies (dìstance from home, access, area of fishable waten, scenic beauty, feelìngs of peace and solitude, catch rate, and size of fish) ìn determ'ining why they fìshed that river. Information was also requested on average number of visits, stretch of water fished, fìshìng method used, and any associated recreational activity. 0f more than 10 700 angìers contacted, about 4000 completed their booklets, wh'ich provided over 20 500 individual assessments of more than 800 r'ivers and streams throughout the country. The present series of reponts uses these assessments to identify, in each acclimat'isation society distrìct, rivers which are regionally and locally'important. Nati onal 1y important ang'li ng ri vers have a1 r'eady been 'identi f ì ed by Teinney, Unwìn, Rowe, McDowal1, and Gnaynoth (1982), but ane also discussed in this series. Because of the sheer volume of data collected, and the amount of detajled'information contained w'ithin the data, a full analysis of every niver was not possible and fon some rivers only the naw data ane presented. Fisheries environmental report no. 75 (1985) PREFACE The rivers and streams of New Zealand, many of which support salmon on tnout fisheries, are the subject of frequent water management decisions. Some of these decisions result in s'ignificant alterations to exìsti ng f i sh habi tat, thereby reduci ng angì i ng opportun'iti es. Any case presented by fisheries interests to either the regional water board .ì o n the Nat'i onal Waten and So i Conservati on Author-ì ty (NWASCA) , ì n suppot't of a particular river, will obv'iously be str"engthened by the 'inclusion of jnformation about the angììng experience afforded by that riven. As hydro-electrìc, i rn'igation, and other niver developments place incneas'ing demands on the remaining freshwater resource, the need for" up to date infonmation on curnent angìing usage has become acute. Specifìcal1y, there is a need for companat'ive data about the nelative i mportance and hì ghly val ued aspects of the ang'l 'ing experi ence of fered by a part'icul an ri ver. Such 'informat'ion wi I I enabl e waten managers to take'into account the angling value of a niven in a regìonal or national context, rathen than in jsolation as tends to happen at present. In 1979, Fisheries Reseanch D'ivision (FRD) of the Ministry of Agriculture and Fisheries (MAF), with the New Zealand accl'imatisation societies, began a postal survey of angìers in al'l acclìmatisation districts with significant sales of fishing I'icences. The survey had four major object'ives: 1. To col'lect, directly fr"om the adult angling population of New Zeal and, quantitati ve and companat j ve i nformati on on eveny r"'iver supportì ng a si gni fi cant sports fi shery. 2. To ident'ify those attributes which characterise nivens of ìmportance. Fisheries environmental report no. 75 (1985) 7 1. SUMMARY This report evaluates data collected durìng the National River Angling Survey for rivens'in the West Coast and Westland Accljmatjsation Society districts. In July 1980, survey questionnaines were mailed to 366 and 300 adult ho.lders of whole season l'icences for West Coast and trJestl and d'istricts respecti vely (f or the I979/80 f i shì ng season) . 0f the rivers in West Coast and Westland (Ì^lChI) wh'ich supported significant trout fì sheries, four were considered to be at least regì onal ly important on the basis of thein high overall importance grades, other valued attn'ibutes, and/or moderate to high levels of use. These were the Grey, Arnold, Ahaura, and Karamea Rivens. A further four rivers, lowen Bu1 ler, Hokit'ika, Arahura, and l,Jaitangìtaona, though not as heavi ly used, al so had hi gh 'importance grades and ht'ghly val ued attributes, and were ìdentified as rivers of local significance. None of l^lCW's trout river f isheries qualified conclusìve'ly for recognition as nationally important, though the Grey, Ahaura, and Karamea are cìea11y borderl'ine cases. Ovenaì.l, the most heaviìy fished catchment in l,JC[rl was that of the Grey River, which accounted for 48% of the total number of estimated v'isits made by the respondents to all rivers in the district.