巻号一覧
14 巻, 1 号
選択された号の論文の13件中1～13を表示しています
- |<
- <
- 1
- >
- >|
-
SUSUMU KURITA1948 年 14 巻 1 号 p. 1-12
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (592K) -
川尻 稔, 島立 孫亥, 小山 一, 宮島 長次郎1948 年 14 巻 1 号 p. 13-16
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーOut of 24 matured female carps, five fishes were injected by the hypophysis of shark, Squalus suckleyi, and another five by the Hypophorin, resulting 3 of each lot of 5 produced fertile eggs and control 14 fishes not reaching the spawning. Then, among these 14 control fishes three individuals were treated by the Hypophorin and another three by the Prehormon. The first lot of all 3 produced the eggs, and 2 individuals in the second lot deposited the eggs, whereas the 8 fishes untreated did not lay eggs.
It is concluded, in our test, that the matured female carps will reach the spawning if they were treated by hormons, with the probability of 70%. In the practice of fish culture in Japan, in which the matured female carps often fail to lay eggs, the injection of some kind hormons will assign to induce the fish to spawn.抄録全体を表示PDF形式でダウンロード (265K) -
川尻 稔1948 年 14 巻 1 号 p. 17-22
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーThe larvae of the “Mashijimi”, a fresh water hermaphroditic shell, hatch out and grow in the branchia of mother shell up to D-shape stage; immediately after the discharge out of mother shell, the larvae enter the bottom life. The season of discharge, though varied depending on the temperature of water, was found fo fall in May and thenceforth in Gifu Prefecture, and July to September in Nagano Prefecture. The discharged larvae, collected in natural water, are rather easily raised in the laboratory at least to the first winter. The laboratory test showed the rate of growth does not much vary among the youngs collected as 4 different places in the said prefectures and also those collected in natural waters near Ueda city, Nagano Prefectme. The size attained in the end of year is about 1mm. in the length of larval shell. This size is much smaller than observed in Paphia philippinarum, Meretrix meretrix and Anadra subcrenata, all important commercial species cultured in the Japanese shallow salt water.
Evidence gathered by the field obsesvation indicate that a great number of population (young) succumb in their first winter; and also that some individuals which passed the first winter do not show the first winter ring on the umbo.抄録全体を表示PDF形式でダウンロード (376K) -
(第1報)底魚の變質山田 紀作, 新間 彌一郎1948 年 14 巻 1 号 p. 23-26
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーTaking two species of bottom dwelling skarks, Mustelus manazo and Helerodontus japonicus, the glycolysis and ammonia formation were studied on the skeletal muscle during its postmortem change. The experiments show that the lactic acid formation in the muscle is fast in M. Manazo which was caught by trawl, whereas the same formation is slow in H japonicus which was caught by bottom long-line, and also that the ammonia formation is slow in the specimens kept in alkaline state with 1/15M. K2HPO4 than in those preserved in distilled water.抄録全体を表示PDF形式でダウンロード (236K) -
東秀 雄, 井關 重夫, 杉井 麒三郎1948 年 14 巻 1 号 p. 27-30
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーWe have studied the use of Raney Catalyst (Ni-Si alloy) as the catalyst of hydrogenation of fish oil. The results are as follows:
(1) Redused Ni prepared from Ni-Si alloy is very active and able to use the hydrogenation at 80°-180°C efficiently.
(2) The activity of the reduced Ni has become very weak by repeated use at a certain temperature, but this weakened catalysist can be useful at higher temperature as active catalyst. For example, the weakened catalyst by 3 times use at 100°C is able to use as active catalyst at 120°C, and the weakened catalyst at 120°C is able to use at 140°C and so on.
(3) The odour of the hydrogenated oil prepared by Raney Catalyst (Ni-Si alloy) is weak and easily deodourized.抄録全体を表示PDF形式でダウンロード (260K) -
(豫3報)イワシ瓢網宮本 秀明1948 年 14 巻 1 号 p. 31-35
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーA type of set-net for sardine was experimented by a model net in various current velocities, and also on actual operation in a fishing ground.
The original net is shown in fig. 1.
The deformation of the net under the current in three different directions is presented in figs. 2 and 3 with the current velocities 0 and 1/2 mile/hour in fig. 2 and 1/2 mile/hour in fig. 3.
The total resistance of the net under the current in varied dircctions are shown in figs. 5 and 7. fig. 5 shows the resistance of a port of the net depicted in fig. 4 and in the same way fig. 7 in fig. 6.
Making R (kg) the total resistance of current and V (cm/sec) the velocities of current then we obtain R=K. Vn
The value of n and K obtained from Fig. 5 are 1.7 and 22-30 respectively, while from Fig. 7 1.5 and 72-106 are caluculated.抄録全体を表示PDF形式でダウンロード (262K) -
東 秀雄, 平尾 秀一, 衣巻 豊輔, 清水 和子1948 年 14 巻 1 号 p. 36-40
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーWe distilled several fish liver oils and rice oil by using a molecular still offered by Tokyo Shibaura Electric Co. Ltd, and studied on nature of each distillate.
The results are shown in following tables.抄録全体を表示PDF形式でダウンロード (263K) -
(第2報)回游魚の肉質變化其一骨格筋に於ける解糖作用山田 紀作, 新間 彌一郎, 鈴木 たね子1948 年 14 巻 1 号 p. 41-43
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーTaking two pelagic migrating fishes, Scomber japonicus and Trachurus japonicas, glycolysis was studied on the survived skeletal music. The experiments show that the quantity of lactic acid formed is smaller in Scomber japonicus which was caught by angling than that in Trachurus japonicus which was caught by set net (daiboarni) and also that in both cases pyruvic acid rapidly increases when lactic acid decreases, being especially remarkable when it is kept in alkalin with M/15. K2HPO4.抄録全体を表示PDF形式でダウンロード (197K) -
第2報回游魚の肉質變化(續)其二骨格筋に於ける燐酸化反應と「アムモニア」の生成山田 紀作1948 年 14 巻 1 号 p. 44-47
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーTaking the same two species, Scomber japonicus and Trachurus japonicus, the mechanism of the phosphorylating reaction together with the ammonia formation in survived skeletal muscle was studied. The experiments show that ammcnia formation (the quantity of which ammounts to ca. 30mg. %) takes place when phosphoglyceric acid rapidly disappears in ca. 10hours. The result well conforms to the theory of Parnas et al. that ammonia in survived muscle derives from the breakdown of adenylic acid which is formed from adenylpyrophosphoric acid by dephosphorylation, when phosphoglyceric acid (or phospho-pyruvicacid) disappears from the muscle.抄録全体を表示PDF形式でダウンロード (257K) -
W 氏法による鯨肉の鮮度観察天野 慶之, 内山 均1948 年 14 巻 1 号 p. 48-50
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーA rapid and simple method of measuring the freshness of raw beef, which was introduced by W. Walkiewicz, was applied to fish and whale meat.
Procedure: Finely chopped meat, 5.0g, is suspended in 50 c. c. of distilled water and filtered. The amount of 0.1 c.c. of the f ?? ltrate is added to 3.0 c. c. of 1% mercuric chloride (solution A) and to acidic mercuric chloride (solution B : 1% HgCl2 containing 0.05% of acetic acid). The coagulation, if happens, indicates the meat not fitted for food.
Results of experiments carried on skipjack, and whale meat are shown in Table II and III. The writers confirmed that the coagulum contains both water, soluble protein and in lesser amount, mercuric aminochloride (See Table IV and V.) The Walkiewicz test may be applicable as a rapid and simple method in detecting the decomposition of some fish meat in its first stage. The test made on raw beef was also attempted and the Walkiewicz's method was confirmed (See Table I).抄録全体を表示PDF形式でダウンロード (208K) -
灣内の泥温と底棲生物の季節變化に就いて島津 忠秀, 山根 謹爾1948 年 14 巻 1 号 p. 51-55
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーBy using a modified Ekman type bottom sampler, monthly sampling of bottom mud and benthos was made on 30 stations within Tokyo Bay (Fig. 1.), from May, 1947 to March, 1948, the temperature of the mud measured and the benthic animals studied quantitatively per unit area. The analysis of data, made to present moment, indicates the facts as shown below.
In a limited area in the northern part of the Bay the temperature of the bottom was found to be lower than in the surrounding area during the months of May to September, 1947, but from December, 1947 to March, 1948, this area showed relatively higher temperature. This particular area was, here, called a “stagnant” region. In the soulh part of the Bay including Uraga channel, it is generally stated that the temperature of bottom mud is 1°-2° C. higher in the east side than in the west throughout seasons.
The total weight of benthos per unit area roughly corresponds to the temperature of mud (Table 2.). On the other hand, the number of individual of animals perunit area showed two peaks, June and September respectively; the writers interprete this phenomenon derived from the fact that the animal forms such as molluscs and annelids which dominate in the fauna spawn in these two month.抄録全体を表示PDF形式でダウンロード (305K) -
谷川 英一1948 年 14 巻 1 号 p. 56-60
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーTo determine the quantity of formaldehyde in smoked fish by Iodometry, N/100 Iodine and Sodium Thiosulfate solutions were prepared, and the accuracy of the method was tested with diluted formaline solutions of definite concentraiton.
As a result of the tests, about 5/100, 000 diluted formaldehyde could be detected.
To determine the quantity of formaldehyde in smoked fish meat, distillates of ground smoked fish meat prepared by steam distillation serves for Iodometry. Each 50 c. c. of the distillate is separately obtained at every 5 minutes and must be prepared in this way up to 6th distillate. All 6 distillates are mixed togather for the next Iodometry.
The maximum quantity of formaldehyde in the smoked fish meat can be obtained when the meat is ground and soaked immediately in distilled water.
This microdetermination of formaldehyde in the smoked foods demands careful attention in the experiment, otherwise the exact amount can not be ascertained.抄録全体を表示PDF形式でダウンロード (292K) -
小久保 清治, 徳井 利信1948 年 14 巻 1 号 p. 61-65
発行日: 1948/11/10
公開日: 2008/02/29
ジャーナル フリーLake Hakamagata (depth 4.5M) and Lake Ushikata (depth 4.0M) which situated in close locality in Nishitsugaru Country of Aom ori Prefecture have been observed limnologically, laying stress on the study of the plankton. The vertical distribution of water temperature showed an apparent stratification, though the difference between the surface and the bottom was not more than 2.0°C. The percentage sauration of the oxygen of surface was 95.4% in the former and 93.6% in the latter, while those of the bottom were 44.6% and 73.2% respectively. Such a oxygen relation suggested the greater abundance of the plankton in the former lake than in the latter lake. The species of the plankton of both lakes are much alike in general appearance except that in the former lake Microcystis aeruginosa vegetated extravagantly. It is also notable that Eurytemora affinis (copepoda), Attheya Zacharisi and Rhizosolenia longiseta (diatoms) which are not always common in other lakes were common to both lakes.抄録全体を表示PDF形式でダウンロード (296K)
- |<
- <
- 1
- >
- >|