巻号一覧
36 巻, 7 号
選択された号の論文の17件中1～17を表示しています
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木村 健一, 市川 竜資1970 年 36 巻 7 号 p. 653-660
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーThe uptake of 106Ru by short-necked clam, Tapes japonica, was investigated under different environmental conditions. It was found that the concentration of 106Ru by the organ of the clam from sea water showed decreasing tendency in the order; shell, gill, mantle, visceral mass, foot and adductor muscle.
The effects of the chemical form, sandy mud, Fe and EDTA were found to be more conspicuous for the shell than for the soft tissue.
The authors are greatly indebted to Mr. K. Watari, Division of Chemistry, for supplying various ruthenium compounds and to Mrs. N Takata and Mr. I. Suyama, of our Division for their technical assistance. Co-operation of the Chiba Prefectural Inner Bay Fisheries Experimental Station is also appreciated.抄録全体を表示PDF形式でダウンロード (476K) -
シロウオの造血器官田村 栄光, 本間 義治1970 年 36 巻 7 号 p. 661-669
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーIn order to know the possible roles of several hemopoietic organs of the ice-goby, histological changes throughout the life-span of the fish were pursued light microscopically with special relation to the sexual maturity and the postspawning death of the fish. The thymus of the larval fish, ovoid in shape, is a lymphoepithelial organ and is occupied with a number of thymic cells. But, the involution of the gland begins in the adult fish of marine life, and is evident in the fish just under the upstream migration. A remarkable atrophy of the gland is brought about in the postspawning spent fish. The immature basophil cells and lymphocytes of the spleen decrease gradually as gonads mature with simultaneous proliferation of connective tissue stroma. A pronounced diminution of the size of spleen and of the cell is found in the spent fish, in particular the female one. The hemopoietic center of the kidney, consisting of the head kidney and parenchymatous tissue of the body kidney, is packed with immature basophil cells and lymphocytes, and mitotic figures still exist at the stage of upstream migration. After that, a greater decrease in the number of these cells occurs with the degeneration of renal tubules. A significant role of the loss of hemopoiesis upon the postspawning death of the fish is postulated in relation to the loss of immunity and endocrine imbalance.抄録全体を表示PDF形式でダウンロード (867K) -
実物網に働く張力について野々田 得郎1970 年 36 巻 7 号 p. 670-675
発行日: 1970/07/25
公開日: 2008/02/29
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有元 石太郎1970 年 36 巻 7 号 p. 676-677
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (100K) -
養殖ウナギの鰓病とC. columnarisの関係若林 久嗣, 吉良 桂子, 江草 周三1970 年 36 巻 7 号 p. 678-685
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリー1) In a previous study it was clarified by experiments that in eels Chondrococcus columnaris infection results in a partial loss of the gill filaments, which is known as a symptom peculiar to the so-called gill disease of pond-cultured eels. In the present study the causative relationship between the gill disease and the bacterium was investigated with eels in acutual eelponds at Yoshida, Shizuoka Prefecture.
2) Comparisons made during a gill disease prevailing season, between moribund and apparently healthy eels, revealed that although healthy eels too commonly had affected gill filaments, often harbouring C. columnaris on the gills and sometimes agglutinins to the bacterium, moribund eels generally had more seriously damaged gills and more frequently had the agglutinins, while there was no definite difference between the two in the rate at which the organism was isolated from the gills.
3) A bimonthly investigation of healthy eels revealed that (1) partial loss of gill filaments were observed throughout the year and the average degree of loss of gill filaments was larger in the warm months and minimum in February; (2) C. columnaris was isolated from the gills in a part of the fishes examined in June, August and October, but not in December to April; and (3) the percentage of fishes having the agglutinins was higher in April and June and low in August to February, being minimum in February.
4) No other germs nor parasites which were considered to be responsible for the gill disease were detected.
5) From these results it is suggested that (1) the activity of C. columnaris in eel-ponds starts about in April, reaches its height in summer and comes to an end in October; (2) the process of development of gill lesions may be different according to the virulence of the bacteria and environmental factors, including competitive bacteria. In some cases the bacteria cause serious damage to the gills leading to speedy death, while in others the bacteria once grown on the gills disappear, leaving a partial loss of gill filaments in the affected areas.
6) The possibility that slight injuries caused by food particles passing over the gills may enable C. clumnaris to obtain a foothold on the gills is also suggested.抄録全体を表示PDF形式でダウンロード (646K) -
発病に及ぼす光の影響谷口 道子1970 年 36 巻 7 号 p. 686-691
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーRelationship between the development of Yellow Spot Disease of conchocelis and light conditions during the preculture period in normal seawater and the latent period in pathogenic water was investigated. It is thought that light during the latent period may be directly related to the mechanism of attack of the disease and that during preculture may control the susceptibility of conchocelis to the disease, owing to its varing influence on growth and physiological conditions. The induced infection experiment was carried out in pathogenic water under natural sunlight (ca. 100 lux) at 25°C.
The results obtained are as follows:
1. Of the conchocelis precultured under continuous illumination of 250, 1000 or 3000 lux for 10 days after budding of the carpospores, the one cultured unde 100 lux light was the most susceptible to the disease.
2. Susceptibility to the disease decreased with the prolongation of the preculture period, when conchocelis were precultured for 14, 24 or 50 days after budding under a continuous illumination of 1000 lux.
3. The susceptibility of conchocelis to the disease decreased gradually when they were kept in the dark.
4. An illumination of 500 lux during the latent period completely inhibited the attack of the disease, regardless of light conditions during preculture. From this fact it seems that the effect of light for latent period differs in quality from that for preculture period.
5. Under most suitable light conditions during the latent period, susceptible conchocelis always showed typical symptoms with the disease rate of 100%. This fact may indicate that conditions of host and light are established to be complementing factors that invite attack by the pathogen.抄録全体を表示PDF形式でダウンロード (453K) -
ブルー・ミート部分のヘモシアニンの検出猪上 徳雄, 元広 輝重1970 年 36 巻 7 号 p. 692-694
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーThe blue meat from canned crab and heat coagulated haemocyanin both gave positive results for haemocyanin. Haemocyanin was not found in the normal meat, but there was a marked reaction in the “joint” portion of the boiled material.抄録全体を表示PDF形式でダウンロード (162K) -
タラバガニヘモシアニンと硫化物との反応について猪上 徳雄, 元広 輝重1970 年 36 巻 7 号 p. 695-697
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーThe haemocyanin contained in crab haemolymph can react with hydrogen sulphide to produce a blue coloured pigment by heating (100°C, 15 min.). Heat coagulated haemocyanin may also react with hydrogen sulphide to give a blue colour by heating.抄録全体を表示PDF形式でダウンロード (167K) -
一般成分について細田 毅一1970 年 36 巻 7 号 p. 698-701
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーThis paper is devoted to the examination of two specimens of Naga-kombu, Laminaria longissima, which after two years of growth were harvested in June and August at Kushiro, Hokkaido.
The base, central and top parts of the blade in each specimen were dried and powdered, and analyzed for the determination of the general components. The experimental values are shown in Tables 1-4, and the results obtained are summarized as follows.
The contents of crude protein and fat in Sei-kombu, mature L. longissima, were relatively high as compared with other tangle species.
The contents of crude protein and ash were higher in Saomae-kombu, immature L. longissima, and those of fat and glucide were lower than in Sei-kombu.
The ascus parts of Sei-kombu contained more protein, fat and glucide than its other parts.
The analytical values of Sei-kombu were between those of the ascus parts and the values of the remainder. The variation of the values hitherto reported may be due to the ratio of ascus parts to the remainder in the sample.抄録全体を表示PDF形式でダウンロード (229K) -
ベニブナのカロチノイド,特に新ケトカロチノイドα-doradecin, doradexanthinについて片山 輝久, Henry YOKOYAMA, C. O. CHICHESTER1970 年 36 巻 7 号 p. 702-708
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリー1. The presence of β-carotene, zeaxanthin, lutein, α-doradecin, β-doradecin and astacin was confirmed in Benibuna and all of those carotenoids except β-carotene exist in the form of esters.
2. A possible biosynthetic pathway from lutein ester to astaxanthin ester is proposed in Benibuna and it is identical with that of gold fish.
A portion of this work was supported by NIH grant AM 11665 from the National Institute of Health.抄録全体を表示PDF形式でダウンロード (361K) -
タイのカロチノイド片山 輝久, 平田 賢二, Henry YOKOYAMA, C. O. CHICHESTER1970 年 36 巻 7 号 p. 709-714
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリー1. The existence of ε-carotene, 3, 3'-dihydroxyr-ε-carotene, lutein, α-doradecin and astacin was confirmed in the carotenoids of sea breams and those exist in the form of esters except ε-carotene.
2. It was assumed that the bright red color of natural sea breams would come from the mixture of astaxanthin ester (red color) and α-doradexanthin ester (golden color).
A portion of this work was supported by NIH grant AM 11665 from the National Institutes of Health.抄録全体を表示PDF形式でダウンロード (298K) -
鴻巣 章二, 野口 玉雄, 橋本 芳郎1970 年 36 巻 7 号 p. 715-719
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーToxicity of a xanthid crab, Zosimus aeneus, in the Pacific was examined. Specimens from Ishigaki Island, Marcus Island, and Rangiroa were more or less toxic. None of those from Espiritu Santo and American Samoa was found to be toxic. A marked local variation of toxicity was thus established.
Specimens of several species other than Z. aeneus, which are suspected to be toxic in some areas, were all found to be non-toxic.抄録全体を表示PDF形式でダウンロード (272K) -
反復培養により誘発されるCTC耐性柿本 大壱, 日高 富男1970 年 36 巻 7 号 p. 720-724
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーIn order to obtain CTC-resistant culture of Bacillus cereus var. mycoides, the applications of both heavy inoculum and the repeating culture with gradual increase of CTC are indispensable, additionary the application of stationary phase cells for inoculum is recommendable. The CTC resistant culture might be produced by growth promoting agents that were arised during repeating culture.抄録全体を表示PDF形式でダウンロード (281K) -
魚皮におけるカロチノイド退色因子の分離とその特性佃田 信夫1970 年 36 巻 7 号 p. 725-733
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーPartial purification and specificity of lipoxidase-like enzyme from two species of fish were described.
1. The active enzyme fraction was almost completely precipitated between 0.4 and 0.55 saturation of ammonium sulfate.
2. The enzyme specimen thus prepared demonstrated catalytic oxidation of the carotenoid pigments in the presense of linoleic acid and linolenic acid, but not in the presense of oleic acid.
3. The optimum pH value for the enzyme reaction was found at 6.8 to 7.0 and the optimum temperatures were from 20°C to 25°C.
4. From the observations of fatty acids attacked, heat stability, and patterns of reaction of the preparation, the author assumes that the enzyme should be lipoxidase-like one firstly confirmed in the skins of marine fish.抄録全体を表示PDF形式でダウンロード (490K) -
ビオチンの欠乏症および要求量荻野 珍吉, 渡辺 武, 柿野 純, 岩永 徳幸, 水野 正矩1970 年 36 巻 7 号 p. 734-740
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリー1) The young carp were reared with the diets containing grading amounts of biotin.
2) The fish fed a biotin-deficient diet showed poor growth and a diminution of biotin content in the hepatopancreas.
3) Nutritional requirement of young carp for biotin was 0.1mg per 100g of diet or 0.02-0.03mg per kg of weight per day.
4) The changes in histological and hematological analyses were also recognized on the biotin-deficient fish.抄録全体を表示PDF形式でダウンロード (593K) -
沿岸海域におけるβ-1, 3'-キシラン分解細菌の分布について藤沢 浩明, 村上 正忠1970 年 36 巻 7 号 p. 741-747
発行日: 1970/07/25
公開日: 2008/02/29
ジャーナル フリーIn the previous papers1-3), enumeration and distribution of β-1, 4'-xylan-decomposing bacteria in the coastal region, and the xylan-decomposing activity of isolates were studied.
The present study was undertaken to ascertain the distribution of β-1, 3'-xylan-decomposing bacteria in sea water and bottom sediments, and on seaweeds in the sea near Yoshimi, Shimonoseki, over a period of nearly one year.
The results obtained are summarized as follows:
1. As to enumeration and isolation of β-1, 3'-xylan-decomposing bacteria in the marine materials, the pour plate method with the aid of the bracketed medium (peptone 5g, yeast extract 1g, β-l, 3'-xylan 15g, agar 10g, filtered sea water 1, 000ml, pH 7.5) was recommended.
2. β-l, 3'-xylan-decomposing bacteria were more widely distributed in bottom sediments and on seaweeds than in sea water, and also the count was less than the number of β-1, 4'-xylan-decomposing bacteria in nearly all materials.
3. It was found that the number of β-1, 3'-xylan-decomposing bacteria was abundant in bottom sediments and on seaweeds, especially on rotten Halimeda cuneata, and the halos indicating the decomposition of β-l, 3'-xylan, were larger in the media which contained organic nitrogen source than in the synthetic media.
These results suggest that the xylan-decomposing bacteria like β-1, 4'-xylan-decomposing bacteria, may be adherent to the surface of the solid material in the marine environment, and may grow well, and also may decompose actively the substrate on a substance rich in organic matter and xylan.抄録全体を表示PDF形式でダウンロード (874K) -
1970 年 36 巻 7 号 p. 750
発行日: 1970年
公開日: 2008/04/22
ジャーナル フリーPDF形式でダウンロード (50K)
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