巻号一覧
4 巻, 2 号
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Yuzo TOHYAMA1935 年 4 巻 2 号 p. 75-78
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (275K) -
Masao KIMATA1935 年 4 巻 2 号 p. 79-81
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーIt is well known that the chemical properties of the media play an important part on the bacterial growth. On the contrary, our knowledge of relationship between the bacterial growth and the physical properties of the media is rather scanty, only a few papers having been published on such items as surface tension, osmotic pressure, and what not. TAKJTA1) has found abundant growths of Vibrio cholerae, tubercle bacilli etc., when the viscosity of media is of certain degrees. Semi-solid media have been successfully used by several authors for some kinds of bacteria2, 3, 4, 5) In the present experiment, I have studied the effect of the density of the medium upon the growth of bacteria, using various concentrations of agar.抄録全体を表示PDF形式でダウンロード (695K) -
I. 鱒罐詰の重量・眞空度と粉模様形成の難易宮越 惣治, 寺瀬 經夫1935 年 4 巻 2 号 p. 82-84
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーA thin layer of fine aluminium powder covering the upper end of a can, which is beaten repeatedly at its centre, assumes gradually an arrangement in granules as shown in Fig. 1. Employing 1/2 LB salmon cans prepared in one and the same case by Nichiro-Gyogyô Kabushiki-Kwaisha, the present authors counted the number of beatings of constant strength, N, which was necessary for the complete appearance of the figure all over the upper end, and examined the relation of it to the weight, W, and vacuity, V, of each can. N increases with W as shown in Fig. 3, while the ratio of N to the mean value, N0, given by the empirical relation of N to W, seems to increase with increasing vacuity (Fig: 4).抄録全体を表示PDF形式でダウンロード (357K) -
IV. 砒素の分布山村 彌六郎1935 年 4 巻 2 号 p. 85-87
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーArsenic content of various marine crustaceans and mollusca has drawn attension of CHAPMAN1) and that of marine algae, some food stuffs, or fishes of FEHLENBERG2) and SADOLIN3), who found that in fishes arsenic is more abunduntly distributed in oil fraction than any other tissues. HEFFTER and presented three hypothesis, that is Lecithine hypothesis, Nuclein hypothesis and Keratine hypothesis, with regard to the manner of combination of this element in tissues. HOLMES4) has recently reported that the arsenic content of codliver oil depends much upon its feeding of crustaceans.
In the present paper there are embodied arsenic contents of food-organisms for fish (I, II, and III) and the distribution of the element in water soluble part, ether soluble part and the residual tissues of pupae of silk warm. The estimation of arsenic was followed by I. BANG'S6) titration method.
For the results of experiments the reader is referred to Tables 1. and 2.抄録全体を表示PDF形式でダウンロード (159K) -
川口 武男, 今西 俊雄, 川本 照雄1935 年 4 巻 2 号 p. 88-90
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーIt is said that the canned flesh spoils more rapidly than the raw one when the former is exposed to air. OSHIMA observed that the boiled crab meat produces putrid odour sooner than the raw one when subjected to the same condition. With a view to studying the problem more accurately, a definite amount of Bacillus subtilis was inoculated on both raw and heated mackerel meats which latter had been autoclaved at 115°C for one hour. Both series were kept at 20°C-21°C. The amounts of volatile basic nitrogen thus produced were determined and the increase of the bacteria in number was observed, as tabulated in Tables 2 and 3. Fig. 1 shows that the raw (circle) as well as boiled (cross) meats produce volatile basic nitrogen at the same rate during the incubation of 8 days but the asymptotic value is much higher than in the latter. It is seen in Fig. 2 that the increase of the bacteria in number obeys the law of monomolecular autocatalytic reaction, the rate of their increase and their maximum number being greater in the boiled meat.抄録全体を表示PDF形式でダウンロード (195K) -
高橋 豊雄1935 年 4 巻 2 号 p. 91-94
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーxist in the flesh of fresh-water fish. Questions have arisen as to whether trimethylamidoxide is the product of metabolism or a substance carried by food, and also as to whether or not trimethylaminoxide changes to trimethylamine after the death of the animals analysed.
The present author analysed the fresh and autolysed muscles of carp, flat-fish, oyster, and squid. As shown in Tables 1-4, trimethylaminoxide occurs in all the samples examined but very little in the muscle of the fresh-water fish, Cyprinus carpio L. The squid, Ommastrepphes sloani pacificus Steenstrup, tops the list in containing amines, trimethylamine, and trimethylaminoxide in its muscle. The first two increased but the third one decreased, during autolysis in the material in question, the sum of total amines and trimethylaminoxide remaining almost constant before and after the autolysis. The same was the case with the sun-drying of the muscle of the squid. On the other hand, no change could be observed in the amount of total amines and trimethylaminoxide during the autolysis of the muscle of the oyster, Ostrea gigas Thumberg.抄録全体を表示PDF形式でダウンロード (216K) -
大谷 武夫, 木村 稔1935 年 4 巻 2 号 p. 95-97
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーThe muscles of Carp and Cod were minced and deprived of as much connective tissue as possible. The muscle pastes thus obtained were dried on glass plates at various temperatures for varying lapses of time. And they were transferred to desiccator and left at room temperature to ensure complete drying. The thin films thus obtained were taken out and powdered, fats being removed with ether. The preparations were digested with pepsin in 0.01 N HCI solution and the digestibility was determined by the following formula: Digestibility=S/N×100, S……increased soluble nitrogen, N……total nitrogen to be digested.
As shown in the accompanying figures, the digestibility of the powdered fish muscles diminishes with increasing degree and duration of heating. The difference of digestibility of various fish meals appears to be due to degree and duration of heating in the manufacturing procedures.抄録全体を表示PDF形式でダウンロード (195K) -
菅野 進1935 年 4 巻 2 号 p. 98-100
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーSet-net catches of Japanese King Crabs in Voroskaya fishing ground, from mid-June to late-August 1934, were examined. The whole area was arbitrarily divided into the successive sub-areas, each including several nets, all of which were set in parallel rows at almost uniform intervals parallel to the coastal line.
1. In an assigned sub-area, it was assumed that the cubs had migrated toward or off from the shore in accordance with the catch of a net, whether it was larger or smaller than that of another net, situated on the shoreward side of the first net; provided that the whole course of a continuous plying of the net of larger catch was covered by that of another net, only such pairs of nets out of all in the sub-area having been chosen. The constant ratio found between the catches of both nets of such a pair (Fig. 2) supports the assumption.
2. Further, with the net of larger catch, the catches per unit area of net were compared on the right and left halves of the net, and the larger side was assumed to indicate the main path of migration.
3.The composition of the group of crabs caught shows a difference before and after the mid-July (Table 1). A group seems to have migrated shoreward in early June (Fig. 1, a) and left the ground in early July (Fig. 1, b), while another group seems to have come and left the ground during the last fishing season (Fig. 1, c).抄録全体を表示PDF形式でダウンロード (195K) -
松浦 義雄1935 年 4 巻 2 号 p. 101-112
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリー1) The sperm whale (Physeter macrocephalus L.) is found exclusively on the Pacific side of the islands of Japan and its whaling has been carried on chiefly in the northern part of the empire with the following main shore stations: --Ayukawa, Miyagi Prefecture; Kamaisi, Iwate Prefecture; Akkesi, Hokkaido; Syana, Iturup Is.
2) The so-called “harems” of the sperm whale are mostly observed migrating in warm waters, but not so rarely even in such cold waters, where the surface water temperatures are as low as 3°-10°C. In respective years of 1930 and 1932 the harem of the whale in question was found in the adjacent waters of Hokkaidô from late autumn to winter, the surface water temperature being then higher than that of the average year.
3) Groups of the sperm whale consisting of merely males of larger size, viz., over 12.1m in length appear from May (or June) to September (or August) in the seas arround Iturup Strait and Urup Suidô. Such group have been observed by whalers to swim southwards following the course of the Tisima Cold Current. Some of them thus enter the Okhotsk Sea through the above-mentioned passages.
4) Judging from the data of 112 foetuses reported from various shore stations, the pairing is mostly confined to a period from June to July, a calf being brought forth at a length of 4.8-6.1m after the pregnancy of 10-12 months. But the minority appears to have another period of coitus around January.
5) Though the female measures 10.6m long and the male 14.5m long on the average, a female 9.1m long was sometimes was found pregnant and a male 15.2m long as a leader of a harem.抄録全体を表示PDF形式でダウンロード (860K) -
I. 生物相の概觀宮地 傳三郎1935 年 4 巻 2 号 p. 113-121
発行日: 1935/07/05
公開日: 2008/02/29
ジャーナル フリーA limnological survey was carried on by the writer in the following lakes of South Sakhalin in the summer of 1934; Tibesani-taiko, Tibesani-syôko, Waai-ko and Horahune-ko on the coast of Aniwa-wan (Aniva Bay), and Tyatya-numa, Bakko-numa and Raitisi-ko on the west coast. The morpbometrical data of these lakes are given in tables 1 and 8, the temperature and pH in table 2, and the chemical properties of the lake water in table 7.
Tibesani-taiko (table 3), Tibesani-syôko (table 4) and Horahune-ko (table 6) belong to eutrophic Corethra plumosus type with Einfeldia, and Waai-ko (table 5) to mesotrophic Einfeldia type. Raitisi-ko (table 10) is a brackish water lake and Macoma baltica, an eurythermal and euryhaline clam, is very common.
There were collected many interesting animals which are new to Japanese fauna, e g. Kamaka kuthae, Piscicola geometra, Cristatella mucedo (statoblasts only), Limnochares holosericea, Thyas oblongata, Forelia ligulifera, Nereis alinensis OKUDA and Valvata pulchella saghalinensis MIYADI. All of them are recorded from Europe or Siberia, except the last two which are new to science.抄録全体を表示PDF形式でダウンロード (1084K)
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