巻号一覧
38 巻, 3 号
選択された号の論文の23件中1～23を表示しています
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滝 襄1972 年 38 巻 3 号 p. 181-188
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーThe formation of pigmented-growth zones found in the jaw apparatus in a sea urchin, Strongylocentrotus intermedius, was studied by tetracycline labelling. The urchins were reared in aquaria for fourteen months from August, 1967 to October, 1968. During the rearing period, they had injections of tetracycline four times through the peristomial membrane.
In the jaw apparatus of the individuals, pigmented-growth zones were clearly seen along each of the suture between the half pyramid and the epiphysis, while they were less clear in the compass, the rotule and the tooth. Only two bands of tetracycline fluorescence were observed along each of the suture between the half pyramid and the epiphysis. A pigmented-growth zone was observed between these two bands of tetracycline fluorescence produced by the injection on October, 1967 and March, 1968.
As those found in the test plates, the pigmented zones observed in these structures were concluded to be winter rings.抄録全体を表示PDF形式でダウンロード (3130K) -
小麦胚芽と他の飼料材との配合による飼料効果の改善福田 博業, 袈裟丸 倉基1972 年 38 巻 3 号 p. 189-193
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーIn the previous papers1, 2), it was shown that the nutritive value of wheat germ was excellent and heat treatment of wheat germ improved its nutritive values for carp, Cyprinus carpio and roasting of the wheat germ by the dry method was more effective than autoclaving by the wet method.
The present paper deals with the nutritive values of formulated diet of wheat germ and other materials, such as wheat germ and soybean, wheat germ and white fish meal, wheat germ and rice bran and so on.
The results obtained are as follows:
1) The nutritive values of formulated diets consisting of defatted wheat germ and defatted soybean showed depressed values in proportion to the decrease of the wheat wheat germ content.
2) The nutritive values of defatted wheat germ with defatted white fish meal showed improvements when used as a formulated diet as compared with the case of single usage.
3) The formulated diets tentatively prepared with wheat germ, white fish meal, defatted rice bran, magna yeast, etc, showed higher value in feed efficiency than the commercial diet for carp.抄録全体を表示PDF形式でダウンロード (283K) -
小栗 幹郎, 小川 瑞穗, 曾我部 博文1972 年 38 巻 3 号 p. 195-200
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーJuxtaglomerular cells were detected in the kidneys of the following five species of aglomerular teleosts; Histrio histrio, Lophius litulon, Opsanus tau, Phrynelox nox and P. tridens. The results of histological observations on these cells were reported. These results suggest some important systemic function(s) of renin-angiotensin system in teleosts.抄録全体を表示PDF形式でダウンロード (2337K) -
竹村 暘1972 年 38 巻 3 号 p. 201-210
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーMany well-known scientists are constantly investigating underwater sound with the knowledge that it will be of much benefit to mankind. Such studies like the underwater sounds of snapping shrimps have resulted to the easy location of many species by tracing the produced sound. Location by sound may also be used to gain knowledge of other marine animals in migration, feeding or even spawning.
The author made a general survey of the underwater sounds along the coastal waters of Japan, paying great emphasis in the nature of the waters where observations were made. It was observed that the following factors produce certain effects at various degrees; 1) bottom material, 2) geographical difference in latitude, 3) water depth, 4) distance from the shore and 5) structure of the coastline.
Frying noise was only observed in relatively warm areas below Lat. 4l°46'N. For bottom materials, excellent underwater sound recordings were made in muddy areas followed by rock and sand. Frying noise was observed only up to 100m deep. Considering other factors to be uniform, the distance from the shore produced no change in the frequency of frying noise. In semi-enclosed areas, the sound frequency was greatest at the entrance.抄録全体を表示PDF形式でダウンロード (613K) -
大槌川における調査1961-1963檜山 義夫, 能勢 幸雄, 清水 誠, 石原 忠一, 阿部 永, 佐藤 隆平, 真岩 高司1972 年 38 巻 3 号 p. 211-221
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーInvestigations for a continued period of five years were carried out at the Otsuchi River (Iwate Pref.) in order to know the freshwater mortality of released chum salmon fry during its seaward migration and the influence of predation upon it. The results of the initial three years, 1961-1963, are given in this report. Hatchery reared chum salmon fry were labelled with orally administered 65Zn (1961 and 1962) or 32P and released. Following the release the transfer of the radioactivity administered to the fry was traced by radiological surveys of fishes in the river and of birds and rats and moles in the surroundings. This survey, together with other investigations such as stomach contents examination, revealed the occurrence of predation of salmon fry by fish, mainly by Chaenogobius urotaenia, and by birds. However quantitative predation was not attained.抄録全体を表示PDF形式でダウンロード (664K) -
大槌川における調査1964, 1965檜山 義夫, 能勢 幸雄, 清水 誠, 石原 忠一, 阿部 永, 佐藤 隆平, 真岩 高司, 梶原 武1972 年 38 巻 3 号 p. 223-229
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーSucceeding the previous report, the results obtained in the 1964 and 1965 Otsuchi River Investigation to elucidate the predation of chum salmon fry in its river stage are presented. In these two years radioactive pins of 6OCo and 198Au (only in 1965) were inserted into the body cavity of the fry as tags. Subsequent to the release of the fry, intensive radiological surveys were conducted, either in water or on land of the experimental area and its surroundings, to trace the movement of the radioactive tags. Besides, all the descending fry were recovered by traps and this enabled to give an estimate of freshwater mortality with greater accuracy. The results tell that the mortality differs with the size of the fry and that large sized fry is subjected to less predation. Contrary to expectation no new predator species were found. Based on the five years' experiences, the conditions to be fulfilled when performing these kinds of utilization of radioactive isotopes were pointed ou.抄録全体を表示PDF形式でダウンロード (417K) -
高沸点フェノール成分の同定西堀 幸吉, 奥山 清美1972 年 38 巻 3 号 p. 231-238
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーHigh boiling point phenolic volatiles of “katsuobushi” flavor were studied by gas chromatographic and spectroscopic methods. Three derivatives of 2, 6-dimethoxyphenol (2, 6-DMOP, 4-methyl-2, 6-DMOP, and 4-ethyl-2, 6-DMOP) were isolated and identified.
These three phenols seem to be present as one part of the “backbone” compounds of the flavor of “katsuobushi”.
When mixed with these three kinds of phenols, the flavor of “niboshi” was changed to “katsuobushi” -like flavor and its rancid odor lessoned.抄録全体を表示PDF形式でダウンロード (327K) -
氷蔵肉ゲル区分のミオシン様成分梅本 滋, 神名 孝一1972 年 38 巻 3 号 p. 239-245
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーProtein extracts from frozen or ice-stored fish muscle sometimes contain the gel fraction which resembles actomyosin in some of the properties, such as superprecipitation, ATP sensitivity and ATPase activity. In order to know whether the gel fraction contains myofibrillar protein, dissociation products of the gel fraction treated with ATP or pyrophosphate were investigated. The gel fraction and actomyosin were prepared from ice-stored muscle of the flatfish, Kareius bicoloratus, and both were treated with ATP or pyrophosphate for dissociation. The ultracentrifugal sedimentation patterns of the gel fraction treated with ATP were similar to those of the treated actomyosin, a myosin-like peak being observed. Also, the elution patterns of the ATP-treated gel fraction by gel filtration on Sepharose 2B were similar to those of the treated actomyosin, a myosin-like peak being observed again. Ultracentrifugal analyses and gel filtration of the gel fraction treated with pyrophosphate gave similar results as described above. From the results obtained, it may be concluded that the gel fraction from the ice-stored muscle contains a myosin-like protein as a component.抄録全体を表示PDF形式でダウンロード (1839K) -
フリルフラマイド接触系における芽胞懸濁液の吸光度変化大畠 渥, 柄多 哲1972 年 38 巻 3 号 p. 247-253
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーThe effects of furylfuramide (FF) on the germination and successive outgrowth of two bacterial spores were investigated by measuring the change in optical density of spore suspensions under several exposing systems to FF, in order to substantiate the microscopic observations which suggested that this drug acted to inhibit the outgrowth not at germination, but during the stage from “swelling” to “emergence” in the developmental process of the bacterial spore.
The results obtained were summarized as follows:
1. FF did not inhibit the germination in physiological germinant solution even at ten times more than MIC for both microbes, although in PGY medium the time required to reach minimum optical density was prolonged in proportion to the concentration of FF in the case of B. coagulans.
2. When the dormant spores were exposed to FF in phosphate buffer, it had no effectiveness on either germination or outgrowth, but when the microbes were exposed in physiological germinant, the effect of FF was shown as the prolongation of the lag phase of the outgrowth in the medium without FF.抄録全体を表示PDF形式でダウンロード (946K) -
エゾアワビ内臓油の組成について林 賢治, 山田 実1972 年 38 巻 3 号 p. 255-263
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーThe present study describes the visceral lipid composition of abalone, Haliotis discus hannai.
The fatty acid composition was determined by gas-liquid chromatography.
The unsaponifiable components separated by column chromatography were identified by thin-layer chromatography, infrared spectroscopy, and gas-liquid chromatography.
The fatty acid composition chiefly consisted of 16:0, 24.1%, 18:1, 19.3%, 14:0, 14.0% and small quantities of polyunsaturated acids such as 20:5, 22:5 and 22:6.
The unsaponifiable components consisted of sterols, 58.6% (largely cholesterol, and ?? 5, 7-sterols; 1.83%), glyceryl ethers, 27.7% (chiefly batyl-, chimyl- and selachyl alcohol), fatty alcohols, 3.1% (largely oleyl alcohol), methylketones, 1.9%, normal hydrocarbons, 0.5% and squalene, 0.4%.抄録全体を表示PDF形式でダウンロード (457K) -
コイ腸管の消化酵素活性におよぼす飼料組成の影響川合 真一郎, 池田 静徳1972 年 38 巻 3 号 p. 265-270
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーIn order to investigate the responses of digestive enzymes to dietary changes, young carp were fed diets with different contents of protein and carbohydrate for 75 days. Fish meal was used as the protein source and potato starch as the carbohydrate source. Maltase, amylase and protease activities of intestine showed adaptation to the dietary change within a week, and these three enzymes showed generally higher activities in the groups given diets with 40-60% starch throughout the experimental period. Low growth rate was noticed only in the high starch diet group (90% starch) and a clear difference was not seen among the other three groups (20, 40 and 60% starch diets).
When four kinds of carbohydrate (maltose, sucrose, lactose and starch) were used as carbohydrate sources, maltase and amylase activities in intestine after 10 days feeding were high in carp fed the diets containing starch or lactose.
Intestinal protease activity of young carp clearly showed adaptation to the fish meal content in the diet when the starch content in the diet was kept constant. Growth rate increased in accordance with the increase of fish meal content in the diet.抄録全体を表示PDF形式でダウンロード (299K) -
柿本 大壱, 永富 光1972 年 38 巻 3 号 p. 271-278
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーThe isolation and the purification of bacteriophages living in the coastal sea waters of Kinko Bay were studied. The characteristics of phages compared with those of host bacteria were also studied. The authors found that in order to isolate the phage from sea water, the enrichment of phages before isolation is indispensable. The characteristics of isolated phages were as follows;
1. Six bacteriophages were isolated from the sea waters of Kinko Bay.
2. Among the six host bacteria, two were halophilic and one of them was pseudomonas species, but the remaining were not classifiable according to BAIN and SHEWAN'S classification. Of six isolates four species were classified as marine bacteria. According to BAIN and SHEWAN'S classification, two of the marine bacteria were Pseudomonas and the other two were Vibrios.
3. As compared with host bacteria. All bacteriophages isolated demonstrated strong resistance to various agents; i.e., to chemicals, to hypotonic solutions such as diluted artificial sea water.抄録全体を表示PDF形式でダウンロード (1634K) -
皮膚組織中のグアニン,ヒポキサンチンへの14C-ギ酸のとりこみとチロキシンによるその促進効果林 征一1972 年 38 巻 3 号 p. 279-290
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーAttempts were made to investigate the rate of incorporation of 14C-formate into G and Hx in the acid-soluble fractions of the skin of fishes (rainbow trout, Salmo gairdneri, and yamame, Oncorhynchus mason) and the influence of thyroxine treatment on their incorporation in vivo.
1. In comparing the rate of incorporation of 14C-formate into the acid-soluble purines in the liver, blood and skin, it was found that the incorporation occurred strikingly in the skin in the period from 2 to 24 hours. The incorporation of 14C-formate into the acid-soluble fraction increased in the skin during the 12 to 24 hour period, while it decreased remarkably in the liver and blood during the same period.
2. The ratio of the incorporation of 14C-formate into the sum of G+Hx to acid-soluble purines was approximately 60%.
3. The contents of G and Hx increased after the intraperitoneal injection of thyroxine (5μg/g B. W./10 days). Different effects, however, were observed with different diets.
4. The incorporation of 14C-formate into G and Hx in the skin of fish which were treated with thyroxine before 15 days was remarkably accelerated from 10 to 40 minutes after injection. At 40 minutes the specific activities of the G and Hx in the skin of fish with thyroxine were 10 times and 4 times higher respectively than that of controls.抄録全体を表示PDF形式でダウンロード (1239K) -
窒素固定細菌の二,三の生態学的性質について河合 章, 菅原 庸1972 年 38 巻 3 号 p. 291-297
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーIn connection with nitrogen fixation in aquatic environments, some ecological aspects of nitrogen fixing bacteria have been studied.
In various water regions, a close relationship between the number of anaerobic nitrogen fixing bacteria and that of nitrate reducing bacteria or denitrifying bacteria was observed. Considerable numbers of nitrogen fixing bacteria occured not in free form but attached on to or in suspended particles in the water. Besides nitrogen fixing bacteria, the groups of the bacteria in the nitrogen cycle form a peculiar pattern of the microflora, which was illustrated as a diagram. The diagram obtained for the bottom sediments of open seas and the bays in which offshore waters flow was clearly different from that of eutrophized fresh water regions.抄録全体を表示PDF形式でダウンロード (379K) -
ゴム弾性理論の適用高木 一郎, 清水 亘1972 年 38 巻 3 号 p. 299-303
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーElastic behavior in both cases of extension and compression of kamaboko was expressed well in application of the rubber elasticity theory. That is, the relation between stress and strain of kamaboko which does not contain starch is given to a first approximation by the equation
ƒ=K(α-α-2),
where ƒ(dyn/cm2), is the stress, α is the extension ratio and K(dyn/cm2) is one-third of the initial Young's modulus. This relation does not depend upon the kinds of raw fish or the moisture content of kamaboko.抄録全体を表示PDF形式でダウンロード (261K) -
遠部 卓1972 年 38 巻 3 号 p. 305
発行日: 1972/03/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (96K) -
1972 年 38 巻 3 号 p. 312a
発行日: 1972年
公開日: 2008/04/22
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1972 年 38 巻 3 号 p. 312b
発行日: 1972年
公開日: 2008/04/22
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1972 年 38 巻 3 号 p. 312c
発行日: 1972年
公開日: 2008/04/22
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1972 年 38 巻 3 号 p. 312d
発行日: 1972年
公開日: 2008/04/22
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1972 年 38 巻 3 号 p. 312e
発行日: 1972年
公開日: 2008/04/22
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1972 年 38 巻 3 号 p. 312f
発行日: 1972年
公開日: 2008/04/22
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1972 年 38 巻 3 号 p. 312g
発行日: 1972年
公開日: 2008/04/22
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