巻号一覧
7 巻, 2 号
選択された号の論文の15件中1～15を表示しています
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IX. Description of a New Gadid FishKiyomatsu MATSUBARA1938 年 7 巻 2 号 p. 61-62
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーA peculiar specimen of a gadid fish with the lower jaw projecting be-yond the upper was obtained in March of 1938 off Kinkazan, east to Ozika Peninsula, Miyagi Prefecture, and was found to represent a new species which I propose to call Laemonema morosum, n. sp.
I wish to return herewith my hearty thanks to Professor A TE AO for his kind supervision during the course of my study.抄録全体を表示PDF形式でダウンロード (96K) -
Masao KIMATA1938 年 7 巻 2 号 p. 63-71
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーIt has been argued to the effect that autolysis is more responsible for the speed observed in decaying of the tissues of various animals than bacterial decomposition is(1-5) But much is left to be desired in this conne-xion.
The present paper embodies three series of experiments on the decom-position of the muscle of aquatic animals, viz., (1) bacterial decomposition of the tissue with varying degrees of initial autolysis, (2) bacterial decom-position in relation to concentration of autolysed products, and (3), the in-fluence of autolytic enzymes on the bacterial decomposition of the muscle.抄録全体を表示PDF形式でダウンロード (408K) -
II.南氷洋座頭鯨松浦 義雄1938 年 7 巻 2 号 p. 72-74
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーThe present account is chiefly based on “International Whaling Statistics, ” Vol. 6 (1935), Vol. 7 (1936), Vol. 8 (1937) and Vol. 10 (1937), edited by the Committee for Whaling Statistics appointed by the Norwegian Government, Oslo. Some materials from four Japanese floating-factories (1937/1938) were also accounted.
1. Of 1, 131 humpback foetuses 629 or 55•6% were males. This percentage value is more or less larger than those of blue whale 51•1% or fine whale 51•4%. 2. The percentage of the twin-pregnancies to the normal ones (0•42%) is smaller than those of blue whale 0•5% or fin whale 0•8%. The poly-pregnancies above triple were not found. 3. The rate of foetal growth from 2 to 7 solar months of pregnancy can be expressed by the equation'l=ktn, where l is the body length of foetus of t months old, and n and k are constants, of which n=1•5. (In blue whale n=1•9. In fin whale n=1•7)抄録全体を表示PDF形式でダウンロード (165K) -
宇田 道隆1938 年 7 巻 2 号 p. 75-78
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーIn order to forecast the size, of catch of “Katuo”, the author tried some investigations on the records collected by our Fisheries Experimental Station. (See the Monthly Oceano-graphical Chart and its annual appendix). (1) As a result of it we find the relative fluctuation (%) year by year in the catch of “Katuo”, which is accompanied by the growth and decay of warm and cold currents, i.e. in abnormally warm year the catch is relatively abundant in the northern and poor in the southern waters, and vice versa in abnormally cold year (Fig. 1 & 2).
(2) The year-catch in a certain area is correlated with the integrated catch in the earlier fishing-season in that area.
(3) Also, the catch in the waters off north-eastern Japan is correlated with the catch in the southern waters in the earlier fishing season (Figs. 3-5). They provide us with the symip-tomes of the poor or rich catch of that year.
(4) The composition of year-classes of “Katuo, ” which is left to future investigations, may give some useful means to the forecast. (Refer Tab. 1).
(5) The yearly variation of the catch-curve of “Katuo” off north-eastern Japan seems to accord with the yearly fall of the trend of water-temperature near Kinkazan (Tab. 2).抄録全体を表示PDF形式でダウンロード (247K) -
相川 廣秋, 加藤 益夫1938 年 7 巻 2 号 p. 79-88
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーOn the basis of rings formed on the surface of centrum of vertebrae, ages of tunny, yellow-finned tunny, long-finned albacore and bonito were determined as follows.
(1) Tunny-Thunnus orientalis (T & S.): In (cm.)=7•94 rn (mm)-4•8, where r1=4•1, r2=6•4, r3=9•4, r4=12•6, r5=15•8, r6=19•4, r7=22•4 r8=25•4, and r9=28•0.
(2) Yellow-finned tunny-Neothunnus macropterus (T. & S.): In=8•4, rn-8•4, where r1=5•6, r2=7•6, r3=9•4, r4=11•4 and r5=13.6.
(3) Long-finned albacore-xGermo germo (LACÉPÈDE): ln=5•8 rn+17•5, where r1=3.2, r2=4•9, r3=6•4, r4=7•9, r5=9•4, r6=11•0, r7=12•7 and r8=14•2.
(4) Bonito-Katsuwonus vagans (LESSON): In=6•15 rn+5•5, where r1=3•2, r2=4•5, r3=5•8, r4 =7•2, r5=8•5 and r6=9•6.
In is the body length in cm of the n-aged fish, when the n-th ring of the radius rn rum was completed.抄録全体を表示PDF形式でダウンロード (656K) -
相川 廣秋, 加藤 益夫1938 年 7 巻 2 号 p. 89-95
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーOn the basis of rings formed on the surface of centrum of vertebrae, ages of 2 species of yellow tail and scad were determined as follows.
(1) Yellow tail-Seriola quinqueradiata (T. & S.): In(cm)=6•3, rn (mm)-1•6, where r1=5•1, r2=7•4, r3=9•4 and r4=11•3.
(2) Yellow tail-Seriola aureovittata (T. & S.): ln=5•2 rn+0•6, where r1=5•1, r2=8•4, r3= 11•5 and r4=14•0.
(3) Scad-Trachurus japonicus (T. & S.): In=3•6, rn+2•3, where r1=2•0, r2=3•1, r3=4•3 and r4=5•4. In cm is the body-length of the n-aged fish when the n-th ring, of which the radius is rn mm, is completed.抄録全体を表示PDF形式でダウンロード (390K) -
片岡 直方1938 年 7 巻 2 号 p. 96-100
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーEggs artificially fertilized were hatched and reared in a coop kept on the pond or in a concrete pool. After two years' experiment the author came to the conclusion: -
(1) To keep the water temperature at 16 ?? 18°C, not under that, is necessary for the fry to grow in the pond. (2) Living organisms, such as phyto- and zooplankton and especially water-flea raised in the pool, are indispensable for rearing the fry as their food. After the fry have grown to some extent, the young fishes were fed with artificial food, such as fish-meal etc. and fair-sized, full-grown ones were obtained.抄録全体を表示PDF形式でダウンロード (2194K) -
久保 伊津男1938 年 7 巻 2 号 p. 101-104
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーNo correlation was found to exist between the catch and the air-temperature or the amount of rain, although a significant positive correlation was observed to occur between the catch and the amount of snow in the fishing season (November-December) as shown in table 1. The catch is influenced by the conditions of wind ; northerly wind (NNE-NNW) and westerly one (WSW-WNW) at Wazima, Niigata, Akita and Aikawa give bad effect to the catch (Fig. 3), and on the contrary, east wind at Aikawa and Akita and south wind at Wazima and Niigata throw good condition to the catch (Fig. 2, C). The velocity of wind at Niigata causes much effect on the catch, strong wind (7m/sec. and above) being unfavourable for the catch (Table 2).抄録全体を表示PDF形式でダウンロード (241K) -
深山 義道, 小坂部 勇1938 年 7 巻 2 号 p. 105-106
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーThe fat obtained by boiling from the, orbit of Thunnus-orientalis (T. & S.) and Parathunnus sibi (T. & S.) has fainter color, lower acid value, larger iodine value, a little higher refractive index than that from the dorsal muscle before the dorsal fin and also subcutaneous tissue of the same fishes (Tables 1 & 2). The fat obtained from the head of Katsuwonus vagans and Sardinia melanosticta has fainter color, higher refractive index, larger iodine value than that from anterior dorsal muscle, ventral muscle, and whole body (Tables 3 & 4). Tables 1-4 show that the fat from the anterior dorsal muscle of Thunnus orientalis (T. & S.) and Parathun-nus sibi (T. & S.), the corresponding one from the whole body of Sardinia melanosticta and from the anterior dorsal muscle Katsuwonus vagans form an ascending series in the iodine value.抄録全体を表示PDF形式でダウンロード (124K) -
深山 義道, 小坂部 勇1938 年 7 巻 2 号 p. 107-108
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーTables 1-2 show that seasonal variations are remarkable in the iodine value of the fat and the whole trunk muscle of Scomber japonicus (HOUTTUYN). The iodine larger in the fat from the head than from the trunk muscle. This value tends the fish gets larger.抄録全体を表示PDF形式でダウンロード (125K) -
長谷部 明石1938 年 7 巻 2 号 p. 109-110
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーWith splitted cods, Gadus macrocephalus TILESIUS, it was experimentally known that at the higher the ish was frozen, the quicker it is dried in the subsequent defrosted state.抄録全体を表示PDF形式でダウンロード (87K) -
燻烟及び木タールの魚油酸化防止力大谷 武夫1938 年 7 巻 2 号 p. 111-114
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーRancidity in fats and fat-bearing materials, the development of which is known to be associated with certain oxidative changes in the fat, with the characteristic odors and flavours due to formation of various aldehydes, ketones and acids, raises a problem particularly in the fishery industry, because fish oils are highly unsaturated and therefore extremely susceptible to the oxidative deterioration. Though many antioxidant substances have been reported by various authors, the action of smoking or of wood-tar to reduce the rancidity of fish oil, has not yet been noticed. Such property of the smoking process can, nevertheless, easily be supposed to exist, seeing from the fact that smoked fishery products do not develop. unplea-sant odor in preservation.
The present paper reports that smoking, adding of wood-tar (Pix Liquida), and that of creosote show indeed the specific power to retard oxidative changes in fish oils. To indicate the rancidity, the determination of peroxide, KEIS test after TAFFEL method and determina-tion of iodine value by WIJS method were carried out with the results as shown in Table 1 and Figs. 1 to 5.抄録全体を表示PDF形式でダウンロード (222K) -
I.餌料の熱量價一定にして榮養比の異る場合右田 正男, 花岡 資1938 年 7 巻 2 号 p. 115-118
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーWhen food protein is absorbed by a growing animal, a part of it is used in maintenance metabolism and the part utilized for increase of body protein is only a fraction of the rest. This fraction decreases with the increasing amount of absorbed. protein, since even in a grow-ing animal excretion of nitrogen rises parallel with increase in absorption of nitrogen Then the accumulation of body protein, P, may be expressed as follows :
P=e-a-bx(x-xo) (1),
where x is the amount of the absorbed protein, x0 that of maintenance protein ; u and b are constants. The formula holds good only when the protein is normally metabolized. Hence x should be greater than x0 and the nutritive ratio of the diet should not be too small. Re-writing the equation (1), we obtain more easily provable from,
ln P/x-x0 =-a-bx (2).
With gold-fish kept on diets with equal caloric value but of different nutritive ratio, the formula was proved in the following manner. The amounts of absorbed and excreted nitrogen were estimated and the nitrogen retention P was calculated, maintenance protein being as-sumed to be 9 mg/100g, 24 hrs. from the nitrogen excretion of the fish fed on high caloric but protein free diet. (Table 1).
The value of In P/x-x0 was plotted against x and proved to settle on a straight line (Fig. 1).
The optimum quantity of absorbed nitrogen can be obtained from equation (3).
xmax= bx0+1 b (3). Nitrogen accumulation of gold-fish under the conditions of our experiment is found to be P=e-0.54-0.0108 (x-9) where x is expressed in terms of mg of nitrogen per 100 g of body weight and 24 hours. The optimum quantity of absorbed nitrogen is 103 mg, which corresponds to a diet of protein con-tent ca. 64% and of nutritive ratio 0.75.抄録全体を表示PDF形式でダウンロード (217K) -
武井 友七, 小林 節子1938 年 7 巻 2 号 p. 119-121
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーTable 2 shows that the oil obtained larger in quantity when the oil-content of always almost constant. The content of irrespective of either origin.
by boiling from the liver of. the the liver is larger but the oil vitamin A in unit quantity of
fish in in the the oil
question is residue is is the same抄録全体を表示PDF形式でダウンロード (179K) -
渡邊 信雄1938 年 7 巻 2 号 p. 122-126
発行日: 1938/07/15
公開日: 2008/02/29
ジャーナル フリーBy minable relation, where a density given.
substitution of an approximate but sufficiently accurate expression for chlorinity deter-from the result of ordinary chlorine titration, into the well-known salinity-chlorinity the following formula is obtained:-
S= 0.030+(3.87153/19.37-α)a/ρ´15,
where a and α are just the same as those in KNUDSEN'S “titration” table, while ρ´15 is the density of sea water of the chlorinity a‰ at 15°C. A nomograph for this equation is also given.抄録全体を表示PDF形式でダウンロード (79K)
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