巻号一覧
39 巻, 10 号
選択された号の論文の13件中1～13を表示しています
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田村 栄光, 本間 義治1973 年 39 巻 10 号 p. 1003-1011
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーBranchial organs, such as the thymus, thyroid and ultimobranchial bodies, of the flat-head goby, Luciogobius guttatus, collected at the rocky beaches of Sado Island in the Japan Sea throughout the year of 1970 were examined histologically to elucidate the role of these organs in the life-span of the fish. A drastic enlargement in the parenchymatous tissue of the thymus occurs during the breeding season, while regressive changes are brought about together with a gradual increase in the amount of stromatous tissue. Cyclic changes of the thyroid function in parallel with gonadal maturation are seen in all year classes of fish. Hyper-plasia of the ultimobranchial bodies is also seen in the spawning fish.抄録全体を表示PDF形式でダウンロード (1574K) -
鈴木 乙彦1973 年 39 巻 10 号 p. 1013-1019
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーTwo contradictory requirements are anticipated in trawling experimentally a wide un-exploited area with the purpose of estimating fish abundance. The one is to take large enough sample to analyse quantitatively in a locality, and the other is to collect data covering as wide an area as possible in each cruise. This difficulty could be settled by compromising between statistical accuracy and available facilities. Therefore, the present problem is reduced to finding the least necessary number of hauls for each locality by which the estimates of fish abundance in the respective localities are assured with the same degree of accuracy. When the observed frequency distribution of catch per haul in an area is fitted with the expected one from the Polya-Eggenberger model, the least necessary number of hauls therein can be expressed as a simple equation. Here, a relatively wide area along the east coast of the Malay Peninsula was divided into three subareas and the optimum number of hauls was calculated for the respective subareas.抄録全体を表示PDF形式でダウンロード (400K) -
山口 裕一郎1973 年 39 巻 10 号 p. 1021-1030
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーWe measured the rectal temperature of tunas and marlins hauled up the deck by the tuna long line. The results obtained are as follows:-
1. The mean value of the body temperature of the live fish was 6°C higher than the temperature of the sea layer where the fish were hooked.
2. The mean value of the body temperature of fish hooked from low temperature fishing-grounds was higher than that of the body temperature of fish hooked from high temperature fishing-grounds.
3. The mean value of the body temperature of fish caught by “deep hooks” was higher than the body temperature of fish caught by shallow hooks".
4. The mean value of the body temperature of large live fish was higher than that of the body temperature of small live fish.
5. The lowest value of the body temperature of live fish is at least 1-2°C higher than the temperature of the sea layer where the fish were hooked.
6. Some dead fish had the highest body temperature next to those of live fish.
We can conclude from this investigation that the body temperature of fish when they were caught is the one accumulated in their body, having no immediate connection with the water temperature of the sea layer where they swim.抄録全体を表示PDF形式でダウンロード (506K) -
産卵周期笹川 康雄1973 年 39 巻 10 号 p. 1031-1037
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーIn researches on the blue king crab, Paralithodes platypus BRANDT, in the Western Bering Sea, as carried out from August to October, the following results were obtained as to the spawning cycle.
1. Female crabs were classified into five groups as shown in following keys.
Immature group: Eggs and thread-like substace sticking to pleopods are absent. Ovary is undeveloped.
Virgin group: Ovary is fully ripe.
Group of carrying eggs: Eggs are present and ovary is immature.
Group of no carrying eggs: Eggs are absent but the thread-like substance is present. Ovary is fully ripe.
Senile and injured group: Eggs and the thread-like substance are absent. Ovary is very thin.
2. The five developmental stages of female crabs are arranged as follows.
Immature stage→ Virgin stage→ →Stage of carrying eggs
↔Stage of no carrying eggs→Senile stage
It is deduced from this study that the periods of the stages of carrying eggs and of not carrying eggs are nineteen months and several months respectively and the spawning cycle is two years, which is different from the annual spawning cycle of the king crab, Parali-thodes camtschatica TILESIUS.抄録全体を表示PDF形式でダウンロード (413K) -
加藤 登, 内山 均, 宇田 文昭1973 年 39 巻 10 号 p. 1039-1044
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーIn a previous paper, the authors reported that a rapid method for determination of ATP-related compounds in fish muscle by concave gradient column chromatography is useful for judgement of enzymatic freshness of fish. However, by this method, inosine and hypoxanthine could not be separated from each other. When sodium borate is added to an inosine solution, the hydroxyl radicals at the cis-position of ribose in inosine react with the borate and a complex compound, having an affinity toward an anion exchange resin greater than that of inosine, is produced. By adding sodium borate to the extract of fish muscle, inosine was completely separated from hypo-xanthine in an appropriate pH range. Hypoxanthine, inosine, uric acid, AMP, IMP, ADP, and ATP can be separated com-pletely from each other within 3, 5 hr with satisfactory recoveries. The distribution patterns of these compounds in muscle of sea bass, dark muscle of tuna and chicken muscle during ice storage were examined by the improved method. Con-trary to the assumption of DYER et al. and KHAN et al., no uric acid was detected in the dark muscle of tuna and in the muscle of chicken.抄録全体を表示PDF形式でダウンロード (355K) -
クロロフィル,カロチノイドおよびフィコビリン朴 栄浩, 小泉 千秋, 野中 順三九1973 年 39 巻 10 号 p. 1045-1049
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーIt is well known that the color and flavor of “Nori” (dried laver) rapidly deteriorate under humid conditions.
In collective surveys of the contents of the various “Nori” components in relation to the storage humidity, the authors have made a comparison of the contents of pigments, organic acids, free amino acids, sugars, and lipids of “Nori” which had been stored under dry and humid conditions.
1) Six lots of 90 g each of “Nori” prepared from Porphyra yezoensis UEDA were stored separately at 20°C for 10, 25, and 45 days under dry and humid conditions, controlled by concentrated sulfuric acid and saturated solution of ammonium sulfate, respectively.
2) Chlorophyll is relatively stable under dry, but not under humid conditions. In the latter case the calculated contents of chlorophyll differed somewhat depending on the method of estimation.
3) Carotenoid is more stable than chlorophyll. The rate of decomposition is greater under humid than under dry conditions, and after 25 days storage a difference of about 15% was observed between the two storage conditions.
4) Phycobilin seems to be most stable among the examined pigments, and humid atmosphere has little effect on its stability.抄録全体を表示PDF形式でダウンロード (300K) -
有機酸組成朴 栄浩, 小泉 千秋, 野中 順三九1973 年 39 巻 10 号 p. 1051-1054
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリー“Nori” (dried laver, Porphyra yezoensis UEDA) samples were stored at 20°C for 10, 25 and 45 days under dry and humid conditions respectively, and variations in the contents of organic acids were studied by GLC and supplementary use of GC-MS.
1) Of the eight acids determined, i.e., pyruvic, lactic, oxalic, malonic, fumaric, succinic, malic, and citric acid, the relatively abundant ones were oxalic, succinic, malic, and citric acid.
2) Oxalic, malic, and succinic acid did not show any notable changes in contents on dry storage, however, on humid storage, the contents of the two former acids descreaed rapidly, in contrast to succinic acid content which increased markedly. The content of citric acid rapidly decreased independent of the storage conditions.
3) Two of several unidentified components presumed to be aromatic acids from their mass spectra. The contents of the two acids decreased slowly under dry conditions but, rapidly decreased under humid conditions, disappearing almost completely after 45 days storage.
4) The contents of total volatile acids increased under both storage conditions; however, the rate of increment was larger under humid than under dry conditions.抄録全体を表示PDF形式でダウンロード (229K) -
イオウを有する有毒アミン2成分の単離安元 健, 遠藤 光春1973 年 39 巻 10 号 p. 1055-1061
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーFrom the viscera of a marine snail, Turbo argyrostoina, two acetone-soluble toxins were newly obtained besides the previously known toxins. These new toxins were purified by acidic alumina and by silicic acid column chromatography. The main component, tentatively named toxin A, was eluted from the silicic acid column with chloroform-methanol (1:1) and the minor one, named toxin B, with methanol. Each toxin was purified by subsequent paper or thin-layer chromatography and gel-filtration. Both toxins were soluble in dilute acids, methanol, ethanol, and aqueous acetone, and insoluble in chloroform and diethyl ether. They showed no absorption maxima in the UV region and possessed tertiary or quaternary nitrogen and sulfur functions in the molecules. Symptoms in mice caused by i.p. injection of these new toxins were distinctly different from those induced by the previously found water-soluble and diethyl ether-soluble toxins, consisting of strong paralysis in limbs and death from respiratory failure within 20min.抄録全体を表示PDF形式でダウンロード (392K) -
Bacillus licheniformis による包装かまぼこの軟化変敗について森 一雄, 沢田 玄道, 鍋谷 修, 丸尾 重昭, 平野 とも子1973 年 39 巻 10 号 p. 1063-1069
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーThe bacterial spoilage of film packaged kamaboko was investigated with respect to the properties of the isolated causative bacteria and the source of the contamination in the kamaboko.
The isolated causative bacteria was identified as Bacillus licheniformis and, among vari-ous kamaboko raw materials, was found only in potato starch.
In addition, it was proven that the addition of sucrose hastens this type of spoilage and that the use of some lower fatty acids is an effective means of preservation from spoilage.抄録全体を表示PDF形式でダウンロード (378K) -
Bacillus licheniformis によるかまぼこの軟化変敗部位森 一雄, 鍋谷 修, 丸尾 重昭, 平野 とも子1973 年 39 巻 10 号 p. 1071-1076
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーA transparent slimy substance accumulates in the softening spoilage parts in kamaboko. The authors reported in the previous paper that this softening spoilage was caused by Bacillus licheniformis. In this report, the chemical composition and precursor of the slimy substance were investigated. The slimy substance was hydrolyzed completely with 0.1 N-H2SO4 at 60°C for 60min. Only a fructose spot was detected on paper chromato-graphy of the hydrolysate. The slimy substance dissolved in cold water and did not dis-solve in a 65% alcohol solution. Its optical rotation was [α]_??_-43.7°(C = 1.03 H2O) and after acetylation it was [α]_??_+10.0°(C = 1.01 CHCI3), suggesting that the slimy substance was levan. Levan was also produced by Bacillus licheniformis in culture media containing sucrose as the carbon source. It thus appears that Bacillus licheniformis produces levan from sucrose in the softening spoilage parts in kamaboko.抄録全体を表示PDF形式でダウンロード (306K) -
新井 健一, 川村 久美子, 林 千恵子1973 年 39 巻 10 号 p. 1077-1085
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーActomyosins from the dorsal muscles of various fish species were prepared and the thermo-stability of the respective Ca2+-ATPase activities was studied.
1) The rate of inactivation of ATPase at 35° varied greatly among actomyosins from different fish species.
2) Since the inactivation of actomyosin ATPase at 25, 30, 35 and 40°C respectively, was a first order process, the rate constants of inactivation at the respective temperatures were calculated.
3) The rates of inactivation of actomyosin ATPase on incubation for definite periods were measured with respect to temperature. The temperature at which approximately fifty percent loss of ATPase activity occurred within 30 minutes varied greatly among actomyosins from various fish species.
4) From the results of the thermal inactivation studies, an order of relative thermo-stability is clearly evident, tilapia actomyosin being the most stable and eel, carp (=herabuna), yellowtail, rainbow trout (=kokanee salmon), rockfish, greenling, Atka mackerel, and Alaska pollack, the least stable among the fish species studied.
With regard to the thermo-stability of actomyosin ATPase, it is suggested that the actomyosins of different fish species have become adapted to the respective body temperatures of these species.抄録全体を表示PDF形式でダウンロード (508K) -
小栗 幹郎1973 年 39 巻 10 号 p. 1087
発行日: 1973/10/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (623K) -
1973 年 39 巻 10 号 p. 1089
発行日: 1973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 (32K)
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