エドウィン・ダン著日本における半世紀の回想の、 豊平川でのブラキストンとの釣りについて、原文の記述は次の通りです。
In addition to deer Hokkaido was pretty well stocked with small game which afforded fairly good sport. But the finest sport of all was the salmon trout fishing. During the season that the fish would take the fly the sport was very fine. Captain Blakiston of Hakodate would join us almost every year in fishing the Toyohira which was perhaps, the finest river in the island for salmon trout. The fish ran from 3 to 12 pounds and in rapid water gave any one but a hog all the fun he could desire. Blakiston was far and away the best of the lot in handling a rod. To see him manipulating a two handed rod with bad ground back of him was a delight in itself.
（ Page 51 ［訳本 85ページ］）
このsalmon trout
は、日本語訳では単に「鱒」です。3〜12ポンドとは1.5〜6kgほどです。
サイズは40〜70cmぐらいでしょうか。明治10年から明治15年までの毎年、初夏の豊平川で、
エドウィン・ダンとブラキストンはフライフィッシングでマス釣りを楽しみました。
第五章 火山と湖への遠乗り（二）
の原文の一部抜粋です。
As the baggage-animals did not travel very fast, two of us rode on ahead to try fishing in a small stream which lay on the way. We were rewarded by taking a few small trout, but having no regular rods or fine tackle, we were obliged to angle in a very primitive manner.
We left our Japanese servants to picket out the horses, cut grass for them, and attend to the culinary operations, while we cut sticks for rods, and enjoyed a little fishing and bathing combined in the clear water of the creek. We were fortunate―one of my companious the most so―in obtaining enough small trout, and another kind of fish of a similar nature, to make a respectable fry, which we discussed at our dinner served befor dark.
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small trout は、訳本では‘小さなマス’となっています。それは、ヤマメでしょうか。 それとも、エゾイワナでしょうか。
第六章 駒ケ岳への二度目の旅
の原文の一部抜粋です。
This is a formidable obstacle to the passage of the salmon-trout, which it is a very interesting sight to watch making their repeated jumps at the cascade. The people from the neighbouring villages during the season―June―often set a coarse net on a frame-work of rough poles immediately below and just within the spray in front of the fall, into which many fish fall back if unsuccessful in jumping far enouth to clear the roughest water. In the pool below the natives catch many trout and ‘yungui’ (a kind of soft monthed fish) with bait, and there are usually a number of salmon-trout sculling about and leaping in it, but they will not take the fly. Lower down the stream however, even as far as its month, good sport may be had with the artificial fly during the right season, and almost at any time small brook-trout and ‘yungui’ may be taken in the same manner. The disadvantage of this as a fly fisher's river, is the great amount of timber and bushes along its banks ; but it has one essential advantage in never flooding to any extent, owing the lake acting as a reservoir.
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ここの、salmon-trout は、訳本では’マス’とあります。 サクラマスでしょうか。small brook-trout は、エゾイワナでしょうか。
第九章 エトロフ［択捉］島訪問
の原文の一部抜粋です。
The sea having moderated we managed to get ashore in the afternoon, and taking trout-rods with us, we had some fishing in a small stonky brook half a mile or so east of the sation. The trout were numerous but very samll. There were three kinds, namely the ordinary barred breek-trout or ‘Yamabe’ of the Japanese ; the white spotted sea-trout or ‘Ami-Mas’ of Yezo ; and a dark species with yellowish tinge barred something like the ‘Yamabe’ but with small vermillion spots on its sides, which was new to me. A Japanese said it is called ‘Oshoro-Koma’, which is probably Ainu ; and that is attained much larger size than the ‘Yamabe’ which is always small. We subsequently at another place found a fourth species, called ‘Iwana’. This is found on Yezo. It is very similar to the ‘Ami-Mas’, but the white spots are confined to the back and are smaller ; the spots on the side of the belly are pink, the larger fish having these spots very light, smaller fish brighter, and in the smallest very bright specs surrounded by white ; seeming as if with ago the specs disseminate and mix with the white. Although I have used the name ‘Iwana’, it must understood that I do not therefore consider this trout as indentical with the ‘Iwana’ of Japan proper, which from drowings made by Mr. P. L. Jouy of specimens cellected by him at Chiusenji Lake appears to be an entirely different fish. Indeed the names of many natural objects on Yezo have been sadly confused by the japanese owing to the universal habit of the first settlers in a new country naming things after others saomewhat similar to what they have been accustomed. ‘Ami-Mas’ and ‘Iwana’ so called, run in and out of the river mouths all summer, but the breeding fish are supposed to ascend in the early part of that season. Of these two very similar fish, the ‘Iwana’ has much the redder flesh and is preferable for the table. While trout fishing you are always sure to eatch some ‘Yungui’, a soft-mouthed, bony fish almost useless for the table but which affords telerable sport with the fly. In order to make sure about these trout, I bottled specimens of each, which I subsequently handed to Mr. C. O. Whitman, formerly of the Tokio University, who was going to Europe, but I am yet without hearing from him regarding their identification.
There were a number of salmon-trout also in this stream, but they were all discoloured fish which had already spawned, or had played about so long in the brackish waters at the mouths of the rivers, or been actually in the rivers, that they had become dark and slimy, many with great patches of white on them, more or less hook-jawed and hump-backed, and often mutilated in their fins and tails. The Japanese say there are three distinct kinds of salmon-trout (I use this term advisedly in order to distinguish these fish from the large autumn salmon ; on the Pacific coast of the United States and British Columbia they would be called ‘spring-salmon’,) which they call ‘Mas’ or ‘Hon-Mas’, ‘Sakura-Mas’, and ‘Beni-Mas’, distinguishing the two latter by the colour of the flesh, that of the last being most intensely red, and consequently compared to the reuge used on the lips by Japanese women ; and considering the first as the ‘true’ or ordinary Mas of Yezo, Saghalin, and the Main Island. As to this, however, I am somewhat inclined to doubt their identification, for I observed the markings expecially on the tail to be different to the ordinary salmon-trout which ascends the Iskari and its tribntaries. However this si again more or less an uncertain test, because, even on that river, there are several recognized varieties, if not species. Indeed most of the Salmonidoe, and many other fresh-water fishes of Japan, await investigation by some competent zoologist, until which the sportsman must be content with native names haoever unreliable. On Etnrnp, according to report, neither the ‘Sakura’ nor ‘Beni-mas’ are so numerous as the ordinary species ; but on Urup―the next Kuril island―the ‘Beni-mas’ is the prevailing kind, and is called by the Ainu ‘Urup’ ; but whether the island takes its name from the fish, or the fish from the island, does not appear clear. Neither the Japanese nor Aine ever confuse the ‘Mas’ with the true salmon or ‘Shake’ (also known in Yezo as ‘Akeaji’).
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We explored the river some distance up by boat, as it is almost impossible to follow its banks on shore owing to the dense growth of bamboo and other scrub. It is a very pretty fishing river, and at the season we were there trout were very numerous. We commenced by fly fishing, but this was soon abandoned for the more killing but less scientific method of using a common bamboo rod and salmon-roe bait, in which we were joined by sailors and firemen from the steamer. All one had to do was a to keep pulling out and baiting afresh, there was no art or skill required. In one afternoon two rods got over a hundred fish each, weighing fifty-five pounds ; and next day over three hundred in all, averaging six ounces, many of very fair size, one reaching even three pounds. How many the Japanese boys from the ship got I don’t know, but they had several tubs full. These fish were nearly all of the white-spotted kinds of sea-trout before mentioned as ‘Iwana’ and ‘Ami-mas’, but there were among them a few ‘Yamabe’, and some of another kind of sea-trout called by the Japanese ‘Ito’, a rather flat-headed fish without any very decided markings on it, which is found like wise in the Yezo rivers.
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ブラキストンが北海道のマス類についての知識を増やしてきた時期に書いた文章でなのでしょう。 しかし、まだ、カラフトマスについては判らなかったようです。
第二十二章 札幌とその周辺
の原文の一部抜粋です。
Small trout are alwasy to be obtained, and the river and artificial water courses are full of the eight-eyed lamprey (‘yatsu-me’ of the Japanese) by the end of June. There are some enormous sea-trout −‘ito’−taken in the main river. I saw a couple on the 3rd of July which must have weighed about thirty pounds each. The salmon-trout (spring-salmon) are taken on the Iskari about Bara-to, early in June, but as elsewhere mentiened do not usually ascend the river as far as Sapporo until two or three weeks later. Some of these fish−which are always in fine condition attain a size of from twelve to fifteen pounds, though the avarage is much less.
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Indeed the summer visitor will fine many means of amusing himself in such excursions, and be able to pass away much of his time quite pleasantly ; and if he be a lover of sport, he may during the right season commencing within a few days after the middle of June, sometimes obtain fair reward for little hard work with his rod, by landing a few clean-run salmon-trout out of the Toyohira ; or small brook-trout from the lesser streams. If you strike the right weather, the right water, and a good run of fish in the river, there is more despicable employment than a day's fishing at or near Sapporo. There is little skill required about it, for I myself, though I don't pretend to be a good fly-fisher, have landed fifteen fish weighting over sixty pounds, within four hours and-a-half.However this will not be accomplished every day. You want everything in your favour as I have said, and a good sized pool where the fish congregate, intermediate between more rapid reaches of the river. There seems to ba a good deal of variation in the salmon-trout both in size and in quality. I have seen those taken on the lower river up to about fourteen pounds, and with the fly we have caught them within two or three ounces of nine pounds weight. The season for this kind of fishing is soon over ; the great bulk of the fish passing Sapporo for the upper waters within ten days or fortnight ; but scattered fish may be taken still for two or three weeks later. ＊
＊The dates of the first salmon-trout taken with the fly in the Toyohira at Sapporo are :−1877 June 29, 1878 July 5, 1879 June 29, 1880 June 16, 1881 June 21, 1882 June 14. The amount of water in the river has of course much to with the running of the fish, but they seem also to be influenced by its temperature. They commence to take the fly when the water reaches 55°, and are seldom caught after it get above 65°. Thus in 1881 the river did not reach 55° until the 20th June, the first fish being taken the following day ; while in 1882 this temperature was reached about the 10th, and the first fish was caught on the 14th. There is a water gage at the bridge at Sapporo, but of course this is not altogether to be relied upon owing to the shifting nature of the river bed ; however during the two years here referred to, the best fishing was when the water there was from half a foot above to an equal distance below the zero mark.
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ここでは、sea-trout を ito ‘イトウ’と書いています。salmon-trout(spring-salmon)は、 訳本では‘ニジマス’となっていますが、本当でしょうか。サクラマスではないでしょうか。
豊平川でのマス釣りで、salmon-trout
は、訳本では、‘海マス’と書かれています。
ブラキストンとダンが一緒に釣りをした、豊平川のその場所は、現在よりも川幅が広く、
複数の流程に別れ、雪代の終わった時期では、水量も少ない状態だったのでしょう。
トゲウオなどのベイトフィッシュが増える時期でもありますから、‘イトウ’である可能性もあります。
夢のある釣りガイド本ですね。
"Internet Archive"
Dun, EdwinReminiscences of nearly half a century in Japan
Blakiston, Thomas WrightJapan in Yezo : a series of papers descriptive of journeys
undertaken in the Island of Yezo, at intervals between 1862 and 1882