日本水産学会誌
Online ISSN : 1349-998X
Print ISSN : 0021-5392
ISSN-L : 0021-5392
8 巻, 1 号
選択された号の論文の10件中1~10を表示しています
  • Mituyo OKADA
    1939 年 8 巻 1 号 p. 1-4
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
  • V. Relation between the Bacterial Decomposition and the Surface Tension of the Solution of the Extractive Matter
    Masao KIMATA
    1939 年 8 巻 1 号 p. 5-6
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
  • 田内 森三郎, 三善 清旭
    1939 年 8 巻 1 号 p. 7-13
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    Based on the yearly catches of three kinds of fishes, “Buri, ” “Adi” and “Sake, ” classified according to the landing places into (1) Rumoi-Isikari district, Hokkaidô, (2) Siribesi-Hiyama district, Hokkaidö, (3) The Japan Sea coast of Aomori, (4) Akita, (5) Yamagata, (6) Niigata, (7) Toyama, (8) Isikawa, (9) Hukui, (10) Kyôto, (11) Hyôgo, (12) Tottori, (13) Simane, and (14) Yamaguti Prefectures, the relations among the catches at different places and those among the catches and the geographical and oceanographical factors were studied statistically.
  • 岡田 光世
    1939 年 8 巻 1 号 p. 14
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    The daily variations in catch and in price were analysed in relations to date and to number of fishing boats, of which the latter was proved to be the more important cause for the variations in question
  • 家久 了
    1939 年 8 巻 1 号 p. 15-16
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    Based on the surveying in 1935 of F. S. S. “Syônanmaru” of the Government Fisheries Experimental Station of Taiwan, trawl fishing grounds in South China Sea were investigated with respect to the average catch per haul in each squared area, into which the sea was divided with meshes of every one degree of latitude and of longitude.
  • 安田 秀明
    1939 年 8 巻 1 号 p. 17-22
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    It was presumed by Dr. M. TAUT ?? and was proved afterwards by Mr. M. UNO that the following equation, obtained for the white cords, holds good for the dyed netting cords, too; -
    logT/T0-T=-(Kloge)t+const.,
    where T0 and T are the breaking strengths of wetted cord at the beginning and after t days' submersion, respectively, and K is a constant. According to the mentioned workers, the value of K is nearly constant, independent of the kind of preservative dye in common use, not containing tar, and it has the same value whether the cord is dyed or not.
    If t0 and t1, respectively, represent the days of submersion when T/T0, assumus two different constant ratios, we obtain from the above equation; -
    K'(t1-t0)=const., K'=Kloge.
    The present author examined this relation with available data of two or three observations, with the following results: -(1) The relation of 1/K to t1-t0, where for t1, T/T0=1/2 and for t0, the cord begins to decompose, shows that 1/t1-t0 can be employed instead of 1/K, and that any of the available observations is not sufficient to decide the difference in quality of the dyes used. (Fig. 1, 2 top).
    (2) In the case, where no remarkable difference in strength is caused by dying, the efficacy of dying is mainly results in the value of K and t0 (Fig.1, 2 bottom).
    (3) K is the less, when t0 is the greater; specially so with those results, in which the relation of 1/K to t1-t0 shows little scattering, such as for silk and cotton cords supplied by NIPPON TEITI GYOGYÖ KENKYÛ-KWAI (The Japanese Society for the Study of the Fixed Net Fishery), and those of Mr. MURATA. This is in accordance with the findings of Dr. M. TAUTI and of the present author for undyed cords.
  • 安藤 貞, 佐久間 今朝四, 荻野 珍吉
    1939 年 8 巻 1 号 p. 23-28
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    A number of Crucian carp were kept unfed during a long winter season and divided into two groups. One group of fishes were killed promptly, and the other fishes bad been subjected to exhaustion of strength before they were killed. Fatigued muscles were found soon after rigor mortis to produce smaller amount of lactic acid and to have higher value of pH than the control. It appears that fatique as well as rigor mortis have nothing to do with buffer action of the muscle.
  • 平野 弘
    1939 年 8 巻 1 号 p. 29-40
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    A well-known but unexplained phenomenon that fresh meat of fish ground with common salt yields a sticky paste-like substance which sets to an elastic gel on heating was studied physicochemically.
    Velocity of gelation was determined by measuring time required until no more paste adheres to smooth surface of an aluminium plate dipped in it.
    The time of set was found to vary with freshnesss of meat, water content of paste, amount of salt added, kind of the salt, hydrogen-ion concentration and temperature.
    The experimental results suggest that myosin, a globulin fraction of muscle protein which is contained in fibrils in a state of gel, is dispersed by the mechanical grinding and agitating operation in the salt so ution, yielding an unstable sort of sol and this transforms to a new gel through mutual aggregation of the colloidal particles of myosin but not through heat denaturation of myosin itself.
  • 松原 喜代松
    1939 年 8 巻 1 号 p. 41-50
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    The material dealt with in the previous paper (this Bulletin, 6 (5), 1938) underwent further examination and several biometric constants were computed (Tables I-V and Figs. 4 and 5). Back-calculation of body length by the method ; of LEA was also, done and the results are shown in Figs. 1-3. It goes without saying that, the, bank cod is, stouter than the off-shore one since it was observed that the width at the cheek is much larger in the former. But the two are not distinguishable in taxonomic characters from each other except, that the female of the bank cod has much higher correlation-coefficient between body length and longest gillraker on first gill-arch. It is very remarkable that none younger than 3 years were found in the bank region and individuals of 3-year class of this region are much larger than the corresponding ones of the off-shore region.
  • I. 鮑
    殖田 三郎, 岡田 喜一
    1939 年 8 巻 1 号 p. 51-56
    発行日: 1939/05/15
    公開日: 2008/02/29
    ジャーナル フリー
    The materials of the present study were obtained from Iwate and Tiba Prefectures in the summer of 1937. The contents of their digestive canals were found composed of mainly vegetable matters, namely, Brown algae (Undaria, Desmarestia, Alaria, Eisenia, Sargassum etc.) and eel grass (Phyllospadix). Very rarely, a small quantity of some kinds of Red algae, Diatoms and the fragments of animal matters (Hydrozoa and copepods etc.) were also found.
    It is very remarkable that Desmarestia and Phyllospadix constituted chief foods of the mollusca in question.
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