巻号一覧
7 巻, 3 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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X. On a New Fish, Notacanthus fascidens, belonging to Heteromi with Special Reference to its VariationsKiyomatsu MATSUBARA1938 年 7 巻 3 号 p. 131-136
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーIn March 1937 the present author procured one specimen from Tyôsi, Tiba Prefecture and in March 1938 eight ones from Kinkazan, located east to Ozika Peninsula, Miyagi Prefecture, belonging to Notacanthus, varying 435 to 632 mm in entire length and he has come to the conclusion that they all are referable to a single species which proved to be new' to science although discrepant in several characteristics as given in the present paper.
The author wishes to return herewith his hearty thanks to Professor A. TERAO for the kind supervision during the course of his study.抄録全体を表示PDF形式でダウンロード (330K) -
Itirô MIYAZAKI1938 年 7 巻 3 号 p. 137-138
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (116K) -
Masao KIMATA1938 年 7 巻 3 号 p. 139-143
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリー(1) Organism which can produce sulphuretted hydrogen from sulphates, Spirillurm desulfuricans var., was isolated from the black bottom-mud of the lakes of Mikata, Hukui Pref., communicating with the Japan Sea.
(2) Through the action of the organisms isolated, sulphuretted hydrogen is formed from sulphates, obeying the law of mono-molecular auto-catalytic reaction.
(3) The activity of the micro-organisms is influenced by the temperature of medium, the rate of H2S production and the temperature being governed by ARRUENIUS' law, with Q10=3.5.
(4) The initial pH-value of the medium, in the range of 5•8 ?? 7•8, has no effect on the activity in question.抄録全体を表示PDF形式でダウンロード (1116K) -
成澤 不二男, 家久 了1938 年 7 巻 3 号 p. 144-146
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーTaking the daily records of meteorological and oceanographical observations and those of catch per fisherman as basis, the authors investigated on the factors influencing the yield of squid off Tazima, south-eastern Japan Sea. During the whole fishing season, the rain makes the catch poor. High surface temperature of water is favourable ; the higher the better, except in July and August, when the effect is obscured.抄録全体を表示PDF形式でダウンロード (107K) -
田内 森三郎, 三善 清旭1938 年 7 巻 3 号 p. 147-148
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーBased on the yearly records, the relations among the catches of sea-breams from various waters both inside and outside the Inland Sea of Japan, and the relations among the catches and the meteorological factors in the main fishing seasons, were investigated statistically.抄録全体を表示PDF形式でダウンロード (150K) -
三善 清旭1938 年 7 巻 3 号 p. 149-150
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーPagrosomus major (T. & S.) landed at Hirosima can be classified into two groups, A and B, of the which, the first winter rings are different in structure from each other as shown in Fig. 1.抄録全体を表示PDF形式でダウンロード (761K) -
II和歌山縣及徳島縣産鯛と瀬戸海山産鯛との比較海老名 謙一1938 年 7 巻 3 号 p. 151-154
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーPagrosomus major, obtained outside Inland Sea of Japan, viz. in Prefs. Wakayama and Tokusima, is entirely different in stock from that caught inside it. The annual ring of scale of the fish seems to be formed in February to early March, the season of the lowest water temperature in the sea region in question.抄録全体を表示PDF形式でダウンロード (1259K) -
安田 秀明1938 年 7 巻 3 号 p. 155-162
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーWith cotton and ramie fibres, ramie yarn, and Manila hemp and Japanese hemp cords, the elongation e after t hours' application of a definite load was found to be represented by the equation,
e=a+blog(t+1),
where a and b are constants, except at the beginning of the loading, and they change their values almost suddenly at a certain epoch during loading (Figs. 1 and 2). Both of constants a and b depend upon the load and on the number of twists per unit length of the cord (Figs. 2-7); a also depends on humidity (Figs. 1 and 6), but b does not (Fig. 1).抄録全体を表示PDF形式でダウンロード (449K) -
小川 朋次郎1938 年 7 巻 3 号 p. 163-164
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーAs a continuation of S. TATUNO and K. NITO'S study (1936), thermal conductivity of the frozen fish was measured by the comparative method, in which a glass plate was used as the standard. With (A) bonito, (B) yellow-tail and (C) flounder flesh, it was found that thermal conductivity, K increases with the lowering temperature, θ, below the freezing point (Fig. 1). With the first two kinds of the fishes, the relation between K and θ-1 is linear, while with flounder, K varies linearly with θ (Fig. 2).抄録全体を表示PDF形式でダウンロード (118K) -
岡田 光世1938 年 7 巻 3 号 p. 165-167
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーIt was tried to overcome the difficulty, encountered in of refrigeration, by means of numerical calculations. As an to the case of a plate-like flesh of fish, cooled on one face insulated on the other.
the integration of the equation example, the method was applied according to NEWTON'S law and抄録全体を表示PDF形式でダウンロード (144K) -
青木 克1938 年 7 巻 3 号 p. 168-170
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーThe viscosity of the mucous substance of Gloiopeltis was determines by tine previously reported method and it was found to increase during storage as the dried preparation (Table 1). The maximum viscosity is obtained by heating at a certain temperature for a definite time, its value varying with species used (Fig. 1). But the viscosity decreases with the dura-tion of beating (Fig. 2). The solution of sodium peroxide, used as bleaching reagent, does not interfere with frond if its concentration is less than 9•1%. But when the solution is more than 0•1% in concentration, the more concentrated the solution, the less the viscosity of the preparation.抄録全体を表示PDF形式でダウンロード (174K) -
II 餌料の組成を一定にし給興量を變へた場合右田 正男, 花岡 資1938 年 7 巻 3 号 p. 171-175
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーFrom the physiology of protein metabolism, the authors* have derived a relation between the amount of absorbed food protein x and that of increase of body roteinP:
P=e-a-bx(x-x0), (1)
in which x0 is the amount of maintenance protein ; a and b are constants.
Within the limit of the, feeding amount which is eaten up by fish in a single day, the absorbed food protein x will be
x=d × ξ, (2)
where ξ is the amount of food protein given, and d the digestibility which under these con-ditions may be considered practically constant in a wide range. Then from (1) and (2) we have,
P=e-a-bdξ(dξ-dξ0)
=e-a-βξ(ξ-ξ0), (3)
in which α and β are constants and ξ0 is the amount of food protein to be given as the maintenance protein.
Comparing (1) with (3), it is seen that the accumulation of body protein can be represented as well in terms of the amount of administered protein as in terms of the amount of absorbed food protein, by the same equation (1), in which constants only are different.
n the previous paper* we have ascertained the formula with goldfish kept on diets of equal calorific value but of different nutritive ratio ; it is shown in this paper that the formula holds also good with fish kept on diets of the same composition but with different feeding amount.
Increase of body nitrogen P in carp in the second year kept on different amounts of diet, ranging 1 to 8 per cent of the body weight a day, which consists of 2 parts of dried silk-worm pupa and 1 part of wheat meal and has nutritive ratio 1•58, at 21°C for 30 days, is expressed as follows :
P= e-1.225-0 060x(X-0•32),
where x denotes grams of food nitrogen given per 100g of initial body weight in the course of 30 days. Increase of body protein will take the maximum value when x ?? 17•0, which corresponds to the feeding amount of 8 per cent of body weight a day.
When increase of body protein in carp of 15g in weight was calculated from the equationdetermined with carp of 30g in weight under the same conditions, it was found by 7% smaller than the observed value. This may show that the power to retain food protein in body di-minishes with growth of fish.抄録全体を表示PDF形式でダウンロード (272K) -
宮地 傳三郎1938 年 7 巻 3 号 p. 176-178
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーThe benthic communities of the Tanabe-wan on the west coast of the Kii Peninsula were surveyed quantitatively in September to October, 1937. The collection was made by means of EKMAN'S bottom sampler for the marine use, with the unit square of 1/37 sq. m., and it closes automatically as it reaches the bottom.
Polychaetes dominate in the faunal constituents, making up about 71% of the total animals, and the molluscs come next by about 19% (table 2). Two distinct communities were recognized in the benthic fauna. The Maldane-association (a polychaete community) occupies the muddy bottom near the mouth of the bay, almost all stations therein deeper than 20m (fig. 1). The commonest animal to be met with on the muddy area of the inner bay is Cerithium-the Cerithium-association (a snail community), and polychaetes such as Terebellides, Magelona and Sternaspis are associated with it. The depth range of this association is 4-17m. The faunae on shallow sandy or sandy-mud stations are very poor, and so far they appear to be community fragments. It is, however, possible that by a further survey they may turn out to be fasciations of some definite associations.
The population density was the greatest in the Maldane-association, but in weight the Cerithium-association exceeded others, because it contains many shells.抄録全体を表示PDF形式でダウンロード (223K) -
宮崎 一老1938 年 7 巻 3 号 p. 179-182
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーTellina, juvenilis is a small vivalve having thin shells, pink or, white in colour. In the vicinity of the Kanazawa Laboratory, it is found abundantly above the low tide mark on the sandy bottom containing a slight admixture of mud and humus. Its breeding occurs mostly in early summer. The sexual elements are spawned out through the exhalent siphon which is extended to such a length as four or five times that of the shell. As the eggs or sperms are accumulated in the siphon, they are expelled forcibly by sudden whip-like lashing of the organ. The egg measures 134-155μ in diameter having a gelatinous coating 23-55μ in thich-ness. This remarkable coating is formed in the ovary. it is readily demonstrable by using a fluid of neutral red. There is also a distinct vitelline membrane of fine reticular structure-The diameter of the vitelline space is ca. 103μ and that of the yolk ca. 62μ, so that the perivitelline space is very wide. And the yolk is freely shifted in the space by the pushing force of the spermatozoon which penetrates into there and its head is attached to the surface of the yolk. When eggs are shed the germinal vesicle has already disappeared and the first polar spindle is formed. During the early segmentation of the egg there protrude no polar lobes. The embryo attains to the shelled-larva-stage in about 26 hours at 23°C. Apical cilia are present.
The reddish-purple colouration along the, umbonal region, and the projected anterior margin of the shell, in grown veliger are characteristic to the species as shown in figures.抄録全体を表示PDF形式でダウンロード (274K) -
宮崎 一老1938 年 7 巻 3 号 p. 183-185
発行日: 1938/09/15
公開日: 2008/02/29
ジャーナル フリーHiatella orientalis is a small bivalve nearly allied to Hiatella (Saxicava) arctica. It is found in shallow waters from the central to the southern part of Japan. The breeding covers rather the cold season, extending from December to May. Sexes are separated, testis is milky white in colour and the ovary generally yellowish brown. Freshly shed ovum is ca. 60μ in diameter with a gelatinous coating ca. 18μ thick and the germinal vesicle is intact. Embryo produced by external fertilization enters into the typical pelagic life. In the early development there protrude no polar lobes. The veliger larva is furnished with distinct apical cilia. Fig. 16 shows fairly grown veliger ca. 222×194μ in size, which the posterior margin of the shell is more swollen, compared with to the anterior. The shell is greenish yellow in colour except for the dark blue at the umbonal region.
Full grown larva just prior to spatting is about 379μ in length and 357μ in height.抄録全体を表示PDF形式でダウンロード (231K)
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