巻号一覧
53 巻, 10 号
選択された号の論文の32件中1～32を表示しています
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竹田 達右, 山崎 圭子, 板沢 靖男1987 年 53 巻 10 号 p. 1701-1709
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーRespiratory parameters were measured with carp in various anesthetic stages, induced with ethyl m-aminobenzoate methanesulfonate (MS 222). Respiration of carp during forced bran-chial irrigation with MS 222 solution was also investigated.
Sedation was induced in 20 ?? 70mg. l-1 solutions of MS 222. Deep anesthesia was induced in the solutions over 85mg. l-1. Respiratory movement stopped in the solutions over 90mg. l-1. Under this concentration, carp uptook enough oxygen from water owing to gill ventilation kept at normal level. Judging from changes of the respiratory parameters, carp is considered to be anesthetized deeply and safely with MS 222 solution of 85-90mg. l-1, when the initial pH of the water before adding MS 222 is 8.0-8.4.
In solutions of 100-150mg. l-1 in concentration of MS 222, high enough to stop the respiratory movement of carp, the forced branchial irrigation with the anesthetic solution assisted fish to uptake necessary oxygen from the ambient water.抄録全体を表示PDF形式でダウンロード (667K) -
遠藤 俊夫, 小野沢 正人, 浜口 昌巳, 楠田 理一1987 年 53 巻 10 号 p. 1711-1716
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーEffects of ultra-fine size reduction of oxolinic acid on the absorprion by yellowtail were studied by a high performance liquid chromatographic method. Under the high performance liquid chromatographic conditions using a fluorescent detector set for the determination of oxolinic acid in yellowtail tissues, oxolinic acid was well separated from the endogenous com-ponents of yellowtail and the limits of detection in the serum, liver, kidney and muscle were 0.01-0.03 μg/ml or g. After oral administration of the ultra-fine size oxolinic acid in a diet at 30mg/kg once a day for 5 days, the concentration of oxolinic acid in yellowtail tissues went below the limit of detection (0'01-0.03μg/ml or g) within 3 days in the serum, 10days in the liver, 16days in the kidney and 13days in the muscle. When pharmacokinetic parameters were compared between the ultra-fine (diameter=1.0μm) size and ordinary (diameter=6.4μm) preparation of oxolinic acid after single oral administration at 30mg/kg, these two types of oxolinic acid were almost equal in the time of peak serum concentrations, but the peak concentration and areas under the serum concentration-time curve of the ultra-fine size type was 1.7 and 1.3times higher than those of the ordinary type, respectively. Thus, the bioavailablity of oxolinic acid was enhanced by particle size reduction.抄録全体を表示PDF形式でダウンロード (491K) -
小林 博, 藤原 公一1987 年 53 巻 10 号 p. 1717-1725
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーThe olfactory responses to amino acids, fatty acids and alcohols were studied by recording electro-encephalogram (EEG) from the olfactory bulb of the yellowtail, Seriola quinqueradiata, which is a marine active swimming fish. A comparison of the olfactory spectrum for 18 kinds of amino acids of the yellowtail with that of the red seabream, Pargus major revealed a high similarity of spectra. The threshold concentration for L-glutamine was 10-7 M, while those for fatty acids and alcohols were higher (10-3 to 10-2 M). The range of the stimulus concentration of response to amino acids was wider (5 to 6 log units) than that to fatty acids and alcohols (about 2 log units). The initial deflection and the inhibitory effects in the EEGs responded to fatty acids and alcohols, respectively. The results suggest that yellowtail use both vision and olfaction to locate their prey.抄録全体を表示PDF形式でダウンロード (597K) -
多部 田修, 田中 邦明, 山田 寿郎, 曾 万年1987 年 53 巻 10 号 p. 1727-1734
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーOtoliths (sagittae) of 22 elvers of Anguilla japonica which were collected in southern Kyushu, Japan, in December 1981 and January and March 1982, and in northern Taiwan in November 1981, and of two artificially hatched larvae were examined using scanning electron microscopy. Otoliths of five elvers of A. marmorata from the same places were also observed. The arrangement and other characteristics of otolith rings in both species were similar to those of the daily rings known for other species. The total number of rings in A. japonica for the November, December, January and March samples averaged 130.8, 155.2, 163.7 and 169.8, and that in A. marmorata for the November and January samples was 146.3 (mean) and 133, respectively. The otolith of 6 day old larvae indicated that the first ring in the elvers was not formed at hatching. The spawning time was estimated to be June-October 1981 for A. japonica, and May-August 1981 for A.marmorata, respectively. The three samples from southern Kyushu differed with each other in the time of spawning, the location of and/or the route from the waters they were spawned. The December elvers may have grown faster than the March elvers.抄録全体を表示PDF形式でダウンロード (1967K) -
伊東 義信, 伊藤 史郎, 金丸 彦一郎, 真崎 邦彦1987 年 53 巻 10 号 p. 1735-1740
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーIn order to improve the technique for artificial seed mass production of the young seaurchin Pseudocentrotus depressus, nine species of attaching diatoms (Achnanthes, two; Navicula, three; Nitzschia, three; Amphora, two) isolated from mass production tank, were tested as a food source for the culture of the young sea urchin during the early growth stage, after meta-morphosis to 5mm in test diameter. The early stage was divided into three experimental periods. For each period, twenty or thirty individuals of young sea urchin were cultured in plastic experimental tanks (20l) each containing a diatom species which had been cultured under uni-algal state. Navicula ramosissima supported the best growth and highest survival rate througout the three experimental periods.
Mass culture of young sea urchin was practically conducted with cultured N. ramosissima in acutual mass production tanks (15m3) through water flowing system. Larval sea urchin just before metamorphosis were introduced into the tanks wherein N. ramosissima had been propagated under uni-algal state in batch culture condition. After metamorphosis, they grew feeding on N. ramosissima as a main food source. The growth and survival rate showed remarkably higher values than those by usual production method of culturing them with naturally attaching diatoms. Hereby, an improved technique, more stable and more efficient than in usual method was established by utilizing the culture diatom, N. ramosissima as a food soufce.抄録全体を表示PDF形式でダウンロード (503K) -
山元 憲一, 平野 修1987 年 53 巻 10 号 p. 1741-1744
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーTwo cyprinid fish Tribolodon hakonensis and Squalidus gracilis showed gradual decrease of oxygen consumption at oxygen saturations less than 85.0±2.2% (4.78±0.14ml/l in oxygen con-centration) and 67.1±1.4% (3.81±0.09ml/l), surfacing at 17.3±1.3% (0.97±0.07ml/l) and 15.9±1.8% (0.91±0.10ml/l), and asphyxia at 14.0±1.2% (0.78±0.07ml/l) and 11.2±1.8% (0.63±0.10ml/l), respectively. Both fish avoided hypoxic water less than 40% in oxygen saturation.抄録全体を表示PDF形式でダウンロード (252K) -
早川 康博, 渡辺 宏, 橘高 二郎1987 年 53 巻 10 号 p. 1745-1753
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーStochastic simulation of feeding behavior of abalones on algae in a restricted area was presented, based on a modified model for marine herbivorous feeding. Their feeding behavior was characterized by the stochastic processes of moving, feeding and resting. In the process of moving, vectors of the movement consisted of moving velocities and relative directions with probability density functions of log-normal and von Mises distribution, respectively, that were independent of each other. In the process of feeding and resting, hourly feeding rate and daily active duration the rest of which in a day was resting duration, were characterized by a bivariate normal distribution with a certain negative correlation coefficient with each other. Parameters in these processes were estimated, based upon observations of abalones in the rearing tanks. Resultant feeding process by this stochastic simulation was compared with that by another deter-ministic simulation and observed feeding of abalones upon young algae.抄録全体を表示PDF形式でダウンロード (721K) -
福田 富男, 土屋 豊1987 年 53 巻 10 号 p. 1755-1758
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーDistributions of shoot and seed of eelgrass Zostera marina, were compared in an eelgrass bed in Okayama Prefecture, the Seto Inland Sea. The former was observed by SCUBA diving on June 4, 1981 and the latter was surveyed by collecting mud samples with a grab-type bottom-sampler on August 17, 1981.
The distributions of shoot and seed were closely related with each other, the points of denser distribution of shoot showing denser distribution of seed. The results suggest that the distribution of seed is an important factor for existence of eelgrass bed. It will be possible to create eelgrass bed artificially by sowing eelgrass seeds at the place where surrounding conditions are suitable.抄録全体を表示PDF形式でダウンロード (738K) -
藤野 和男, 鎌倉 正幸, 三戸 隆司, 荒井 克俊1987 年 53 巻 10 号 p. 1759-1764
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーEvidence has been provided on overdominance of heterozygote or heterosis in survival at single locus, coding esterase and phosphogluconate dehydrogenase in wild population of the pacific abalone Haliotis discus hannai. Successful development of the techniques for inducing two kinds of triploid sib animals has made it possible to evaluate performance of triploid populations in comparison with that of their sib normal diploid animals.
The present work analyses meiotic processes of transmitting parental genomes to their off-springs, attempts to estimate rate of gene-centromere recombination among homologous chro-matids, examines to see if overdominance of heterozygote or heterosis in survival is involved at phosphogluconate dehydrogenase locus, and discusses possible effect of the recombination to heterorygosity/homozygosity in triploid animals and its impact on their performance of the animals, induced and reazed under experimental conditions.抄録全体を表示PDF形式でダウンロード (405K) -
北田 修一, 平野 勝臣1987 年 53 巻 10 号 p. 1765-1770
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーThe aim of this article is to consider a method for estimating fishing and natural mortality coefficients, denoted by F and M, respectively. It is assumed that the length of the life of atagged fish is distributed as an exponential distribution with mean (F+M)-1. When the sample is grouped and is censored at a certain time, and the group intervals are unequal in length, the problems of estimation of the parameters from tag recoveries are discussed. Using the recovery data of young red sea bream Pagrus major in the Seto Inland Sea, two numerical examples are given. The goodness of fit of the theoretical model to sample data is also demonstrated.抄録全体を表示PDF形式でダウンロード (441K) -
小池 孝知, 能勢 幸雄1987 年 53 巻 10 号 p. 1771-1779
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーThe actual situation of the small boat fisheries in the coastal area was studied by the principal component analysis. The data were collected for five years (1977-1981) from Iwa-wada Fisheries Cooperative whichi s located in the middle of Chiba Prefecture along the Pacific coast.
The results obtained are as follows:
The highest income was observed in the fishing boats in which main fish species caught were skipjack, tunas and squids. The boats which caught mainly yellowtails were ranked in the middle. The lowest rank was shown in the boats which caught fluonders, as well as miscellaneous species by the trammel net.抄録全体を表示PDF形式でダウンロード (514K) -
小池 孝知, 能勢 幸雄1987 年 53 巻 10 号 p. 1781-1788
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーA total of 275 fishing boats smaller than 5 tons, in the Iwawada Fisheries Cooperative of Chiba Prefecture, was classified by the species gaining the highest income, and further by the stepwise linear discriminant analysis for examining the income of the other species caught in each boat.
As the results of the analysis, five groups are discriminated as follows: The number of boats was counted to 112 in G1 group which mainly caught yellowtails, 48 in G2 for flounders, 43 in G3 for miscellaneous species, 39 in G4 for skepjack and tunas, and 33 in G5 for squids.
Among these five groups, the average income of catch were the highest in G4 and G5, in which most of the boats were bigger than 4 tons. The G2 and G3 groups were ranked as the lowest in average catch income, while the G1 as the middle, the boats of these three groups consisted mainly of fishing boats under 4 tons.抄録全体を表示PDF形式でダウンロード (593K) -
須田 有輔, 清水 誠, 能勢 幸雄1987 年 53 巻 10 号 p. 1789-1796
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーSpawning groups of Japanese jack mackerel Trachurus japonicus in the low stock level period were segregated. Segregation was done by the visual examination of monthly changes of the frequency distribution of fork length and/or partly the monthly changes of the mean gonad index.
In the Kuroshio Current System, two spawning groups were recognized: the spring spawning group spawns in spring mainly from February to April and distributes from southern Kyushu to Kanto region; the summer spawning group spawns in summer mainly from June to August and is present only in Kanto region.
In the East China Sea and Tsushima Current System, two spawning groups are recognized: the winter spawning group spawns in winter mainly December to January and is present in Wakasa Bay and Noto regions; the spring-summer spawning group spawns from spring to summer mainly April to June and is present in northwestern Kyushu region.
Comparison of the population structure of both high stock level (former studies) and low level (present study) shows that basically no differences between the two periods exist.抄録全体を表示PDF形式でダウンロード (513K) -
楠田 理一, 川上 宏一, 川合 研児1987 年 53 巻 10 号 p. 1797-1804
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーDuring the period from September 1985 to February 1986, an epizootic occurred in cultured yellowtail in Sukumo bay, Kochi Prefecture. The typical symptoms of the disease observed were haemorrhagic ascites, hypertrophy of the spleen and kidney with tubercles and visceral adhesions.
In this study, the morphological, biological and biochemical characteristics of the isolated strains were investigated. The strains were Gram-positive, non filamentous, non motile, strongly acid-fast and short rods measuring 0.3-0.4×0.8-1.5μm. Growth occurred from 15 to 33°C with the optimum from 24 to 28°C, at 0 to 2% salt concentration and at optimum pH of 6 to 7. Growth was not observed in 3 days of incubation under optimal conditions and totally negative at 37°C. The isolates produced niacin, catalase, hydrolysis of Tween 80 after 10 days was positive. Acid from mannose, hydrolysis of Tween 80 after 5 days, nitrate reduction, β-galactosidase, iron uptake, nitrate as nitrogen source were negative. The strains of pigment was produced only on exposure to light. On the basis of the above characteristics, the isolates were placed in the genus Mycobacterium Group I photochromogens of Runyon's classification. However, for the biochemical characteristics and particularly the optimal temperature for growth, it is not possible to include the isolates to any previously established species of the genus Mycobacterium.抄録全体を表示PDF形式でダウンロード (1599K) -
角田 出1987 年 53 巻 10 号 p. 1805-1809
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーT. obscurus from the mouth of Susami and Tonda rivers and brackish water pond in Onzan park and T. brevispinis from the lower of Tonda river in Wakayama prefecture were transferred directly from freshwater to seawater.
Within 24 hours after the transfer, both species showed loss of body weight, decrease in muscle water content, increase in plasma osmolarity and increase in Na+ and Cl- concentrations of both plasma and muscle. No remarkable changes were observed in K+ concentrations of both plasma and muscle except for that of the muscle of T. obscurus from Onzan.
After 168 hours, Cl- concentrations in the muscle of both species increased remarkably as compared to those of the freshwater specimens. With the exception of CI-, almost all measureditems in T. obscurus returned to nearly same levels as those in freshwater. On the other hand, in T. brevispinis, loss of body weight, decrease in muscle water content, increase in Na+ and K+ concentrations of both plasma and muscle were observed as compared to those under freshwater conditions.抄録全体を表示PDF形式でダウンロード (330K) -
丸山 俊朗, 山田 僚一, 薄井 耕一, 鈴木 弘之, 吉田 多摩夫1987 年 53 巻 10 号 p. 1811-1819
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーAcid treated clay(ATC)was developed as an algicide. The ATC requirement for a 90% removal of marine plankton, Oisthodiscus sp., Chattanella sp., Dunaliella sp., and Skeletonema costatum, were observed to be a maximum 220mg/l at pH 7-8, and decrease in either lower or higher of the pH range. Natural sca waters blooming red tide organisms (34 and 218μg chlorophyl a/l)is Tokyo Bay required 130 and 250mg/l of ATC. The minimum and maximum release of aluminium from the clay into sea water were shown at pH 6.7 and 8.5 respectively. Where approximately 100% of clay particle was coagulated down between pH 6.8 and 8.3 re-gardless of ATC concentration. It was suggested that cell removal mechanism of ATC may be mainly due to disruption of cells followed by coagulation with positive charged aluminium hydroxide under about pH 7. Flocculation with hydroxide of Al and Fe may also play im-portant role in removal of cells.抄録全体を表示PDF形式でダウンロード (743K) -
青木 宙, 坂口 哲美, 北尾 忠利1987 年 53 巻 10 号 p. 1821-1825
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーOne hundred fifty-two strains of 186 strains of Edwardsiella tarda collected from eel culture ponds in various areas in Japan in 1983 and 1984 showed resistance to one or a combination of the following drugs; chloramphenicol (CP), tetracycline (TC), streptomycin (SM), nalidixic acid (NA), furazolidone (NF), and/or sulfonamide (SA). Strains resistant to NA and NF were detected at high frequency. Transferable R plasmids were detected in 31 of the 152 resistant strains. R plasmids encoding for resistance to CP, TC, and SA were predominant. Other R plasmids encoded for resistance to TC, SA; CP, SA; and CP, TC, SM, and SA. The Hindlll or PstI digestion patterns of the R plasmids with different resistant markers were similar except one R plasmid with resistance to CP, TC, SM, and SA. Southern blot hybridization1) showed these R plasmids to have high homology with pK4, a typical R plasmid from E. tarda detected in the 1970's.2) Therefore, drug resistant strains of E. tarda carrying R plasmids with the same DNA structure have pre-vailed in Japanese eel culture ponds since 1972.抄録全体を表示PDF形式でダウンロード (1377K) -
添田 秀男, 余座 和征, 嶋村 哲哉, 長谷川 英一1987 年 53 巻 10 号 p. 1827-1833
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーThis paper deals with the swimming behavior of chum salmon Oncorhynchus keta, the sea condition of swimming azea of the test fish in the '85 experiment, and summary of the experiments conducted in and after '82 in eariy migratory season at Okhotsk sea off the coast of Shiretoko peninsula and its neighborhood, Hokkaido.
On the swimming behavior of the test fish in '85 experiment, swimming direction showed a notable eastward element, and mean horizontal swimming speed was faster than Ichihara's es-timated value (1.0 FL/s), the trend of vertical movement showed that the test fish swam com-paratively deep before and after noon, just below the sea surface without vertical movement at mid-night, with notable vertical movement at sunrise.
The sea condition of the '85 experiment can be considered as normal condition by oceano-graphic observation at the experiment.
As the results of the experiment, conducted in and after '82, the migration of chum salmon was assumed to be as follows, chum salmon migrated to Kitamiyamato bank along the East Sahalin Currents, and diverged to east and west at an area from Kitamiyamato bank to Cape Notoro or off shore Monbetsu.
On swimming depth, it was recognized that maximised depth is not always shown in a sea area with enough depth and the test fish swam at comparatively shallower layer in deep sea, bottom layer in shallow sea.抄録全体を表示PDF形式でダウンロード (512K) -
村田 寿, 山内 清, 後藤 孝信, 那須 司1987 年 53 巻 10 号 p. 1835-1840
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーThe aim of the present study was to evaluate the dietary value of the rotifer Brachinus plicatilis as a live feed, through its levels of ω3-polyunsaturated fatty acids (PUFA), its 2-thio-bazbituric acid (TBA) values, and its α-tocapherol content. Samples of rotifer were frozen and stored at -15°C for up to 120 days.
The amount of ω3-PUFA in the total lipid of the frozen rotifers remained unchanged during the first 90 days of storage, but decreased by 120 days of storage. TBA values were less than 0.5 for up to 90 days and then rose to 1.0 at 120 days. The α-tocopherol levels decreased during frozen storage until they were 0.5 times the initial level at 120 days. There was a nega-five relationship between TBA values and α-tocopherol levels.
The results suggested that α-tocopherol functions as an antioxidant and that the dietary value of the frozen rotifers does not decrease for at least 90 days. ω3-PUFA in frozen rotifers stored more than 90 days may be susceptible to lipid oxidation. This might cause losses in their dietary value.抄録全体を表示PDF形式でダウンロード (373K) -
下村 博, 高橋 喬, 森下 達雄, 上野 隆二1987 年 53 巻 10 号 p. 1841-1845
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーLysosomal enzymes are released when lysosomal particles are ruptured by freezing-thawing. This study is concerned with whether or not frozen-thawed fishes can be differentiated from un-frozen ones by the activity level of lysosomal enzymes in the press juice of the muscle.
The press juice were squeezed from unfrozen fish muscle and frozen-thawed one by centri-fugation, and the extracts were prepared by homogenizing the squeezed meat remained after centrifugation with 1% NaCl solution. The press juices and the extracts were used for deter-mination of the activities of lysosomal enzymes: β-N-acetylglucosaminidase, α-glucosidase, and cathepsin D.
For each of the three enzymes, the ratio of the activity in the press juice to toal activity (the sum of the enzyme activities in the press juice and the extract) in frozen-thawed muscle was compared with that of the unfrozen one. Seven fish species were tested for the ratio. Theactivity ratio was increased by freezing-thawing by two to three fold, higher than that of the unfrozen muscle for the five species examined and by more than ten fold higher for the two species examined. It was, however, rather difficult to find out a standard level of the activity ratio adequate for differentiation of the frozen-thawed muscle from unfrozen muscle of various species of fish because the activity ratio varied considerably from species to species.抄録全体を表示PDF形式でダウンロード (371K) -
村井 武四, 尾形 博, 平澤 康弘, 秋山 敏男, 能勢 健嗣1987 年 53 巻 10 号 p. 1847-1859
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーIn order to study the dynamics of amino acid metabolism in rainbow trout, blood samples were collected from the hepatic vein, hepatic portal vein and caudal vein-artery complex at 0, 3, 6, 12, 24, 48 and 72h after force-feeding complete diets containing casein or corresponding crystal-line amino acids. In both dietary groups, a large proportion of free amino acids appeared in the portal blood within 3h and their level reached peaks by 12h at the latest and dropped to fasting levels by 24h. Most of the amino acids, including branched-chain amino acids, were taken up by the liver intensively during the absarptive period and less intensively but significantly even at 72h after food intake. Patterns of the portal absorption of and hepatic uptake of essential amino acids reflected the dietary profiles in both groups during the absorptive period. Postprandial changes in plasma free amino acids collected from all three regions showed similar patterns in both dietary groups.抄録全体を表示PDF形式でダウンロード (862K) -
佐藤 秀一, 井爪 一宏, 竹内 俊郎, 渡辺 武1987 年 53 巻 10 号 p. 1861-1866
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーA feeding experiment was conducted to examine availability to rainbow trout of zinc (Zn) contained in various types of fish meals (white fish meal, brown fish meal, and sardine meal wlth or without solution). Fingerlings weighing 0.7g in average were fed diets containing four kinds of fish meals as protein source with or without supplement of Zn for 27 weeks at water temperature of 10-20°C. The effect of deletion of Zn from the mineral mixture in fish meal diets on growth, appearance of dwarfism and cataract and Zn content in vertebrae was highest in fish fed with white fish meal diet containing a high amount of tricalcium phosphate. While the effect was not so severe in fish fed other fish meal diets containing a lower amount of tricalcium phosphate.
These results have clearly demonstrated that availability to rainbow trout of Zn in fish meal was greatly affected by the tricalcium phosphate content. Thus the availability to rainbow trout of Zn contained in white fish meal was lowest among four types of fish meals used due to a highest level of tricalcium phosphate, judging from the growth of the fish, rate of appearance of short body dwarfism and eye lens cataract and Zn content in vertebrae.抄録全体を表示PDF形式でダウンロード (438K) -
菅野 信弘, 佐藤 実, 佐藤 美和1987 年 53 巻 10 号 p. 1867-1870
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーAPS formation catalyzed by purified ATP-sulphurylase of Porphyra yezoensis was demon-strated. APS accumulated in the incubated enzyme mixture was separated on a DEAE-Toyo pearl 650M column, and identified by anion-exchange HPLC and TLC. UV absorption spectra, acid-lability, and equimolar contents in adenine, ribose, phosphate and sulphate also substantiated the identity. The low accumulation of APS suggested the presence of some difficulties in the APS synthesizing reaction.
ATP-sulphurylase (EC 2. 7. 7. 4.) catalyzes the first step in the sulphate activating reaction:抄録全体を表示PDF形式でダウンロード (281K) -
森下 達雄, 宇野 和明, 高橋 喬1987 年 53 巻 10 号 p. 1871-1881
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーThe variations in the contents of extractive nitrogenous compounds of cultured red seabream were investigated by using their growing stages and regional meats. The followingresults were obtained.
(1) Extractive nitrogen contents in the ordinary meats were higher in the dorsal and ventralmeats than in the abdominal cavity-meats and tended to increase slightly with their growth. Those in the red meats were the lowest among all regional meats.
(2) The total contents of free amino acids were abundant in the red meats compared with the ordinary meats and increased in winter when their growth slowed down.
(3) Of the free amino acids, taurine, histidine, glycine and alanine were found in high contents in every ordinary meats. On the other hand, the red meats was rich in taurine and glutamic acid but poor in lysine and histidine. Taurine, lysine and histidine contents showed the variations with growth of decrease, Of increase and of increase and decrease respectively. The contents of glycine, alanine and proline increased in winter and decreased in summer of the growing period.
(4) While TMAO contents were kept nearly constant in 1 age fish, increased with a lower-ing of the habitat water-temperatures in 0 age fish.
(5) Creative contents varied contrary to creatinine and the total of the two contents was kept almost constant through all growing stakes. Therefore, both could be related compli-mentarily.抄録全体を表示PDF形式でダウンロード (622K) -
生田 國雄1987 年 53 巻 10 号 p. 1883-1885
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーOysters, mussels and limpets were collected from thirteen sites along the intertidal rocky shoreline of Beppu Bay and arsenic contents in the specimens were determined. On the other hand, oysters, chitons and limpets were collected along the rocky shoreline and also short-necked clams from sand bed of a site in Miyazaki Prefecture, and the contents were also determined. Potential arsenic pollution in Beppu Bay was discussed on the basis of the concentration differences between the specimens collected in common from the two areas.
In the oysters and the limpets collected in common from the two areas, the arsenic contents were consistently higher in those from Beppu Bay than those from Miyazaki Pref. In Beppu Bay, the contents in oysters were rather higher in those from the two sites in Saganoseki Inlet than in those from all of the other sampling sites, and in mussels a similar phenomenon was noticed. In a single site from which the three specimens were collected in common, the order of arsenic content was as follows: limpets>oysters>mussels. Between oysters and limpets collected from all of the sampling sites in Beppu Bay, the contents were consistently higher in the latter than in the former. On the other hand, in the specimens collected from the shoreline of Miyazaki Pref., the contents in oysters were almost equal to those in limpets. The arsenic levels of chitons were nearly equivalent to those in limpets and oysters. The relatively high level of arsenic equivalent to that of the oysters from Beppu Bay was found in short-necked clams from a site in Miyazaki Pref.
From these contexts, it was demonstrated that the high arsenic accumulation existed in the littoral forms in Beppu Bay, in which much grossly polluted specimens were found locally. Such high arsenic accumulation could be explained by biomagnification through arsenic level elevated to sea water.抄録全体を表示PDF形式でダウンロード (209K) -
矢野 友紀, 松山 博子, 田中 浩二, 中尾 実樹1987 年 53 巻 10 号 p. 1887-1891
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーAlternative complement pathway activity (ACH50) of porgy serum was measured by in-cubating the serum with rabbit red blood cells (RaRBC) in the presence of 10mM EGTA. It was confirmed that the concentration of EGTA (10mM) is enough to prevent the activation of the classical pathway of porgy complement, and that among red blood cells from several animals, RaRBC is the most effective activator of the alternative pathway of porgy comple-ment.
Optimum conditions for the hemolytic reaction were: reaction temperature, 15°C; reaction time, 120min; pH 7.8; concentration of Mg2+, 10mM. When determined under these conditions, the ACH50 values of the sera from 33 porgy, weighing 23-31g, were remarkably high (143±81units/ml) as compared with those reported for mammalian sera.抄録全体を表示PDF形式でダウンロード (379K) -
生野 芳博, 松野 隆男1987 年 53 巻 10 号 p. 1893-1896
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーThe carotenoids from the bright yellow coloured finlet of big-eye tuna Thunnus obesus were investigated.
Tunaxanthin B (17.9%) (8) and C (36.2%) (9) were identified as major carotenoids. Further-more, (6S, 6'S)-(1.6%) (1), (6R, 6'S: meso)-(1.5%) (2), (6R, 6'R)-ε, ε-carotene-3, 3'-dione (0.5%) (3), (3R, 6R, 6'R)-(2.3%) (4), (3S, 6S, 6'S)-(5.9%) (5), (3R, 6S, 6'S)-(9.3%) (6), (3R, 6S, 6'R)-3-hydroxy-ε, ε-caroten-3'-one (7.3%) (13), tunaxanthin A (4.2%) (7), D (7.8%) (10), H (4.0%) (11) and I (trace) (12) were also identified.
A new carotenoid, (3R, 6S, 6'R)-3-hydroxy-ε, ε-caroten-3'-one (13) was first isolated.
From the experimental results obtained, we proposed the presence of the reductive meta-bolic pathways, ε, ε-carotene-3, 3'-diones to tunaxanthins via 3-hydroxy-ε, ε-caroten-3'-ones, in big-eye tuna.抄録全体を表示PDF形式でダウンロード (257K) -
岡本 信明, 糟谷 浩一, 佐野 徳夫1987 年 53 巻 10 号 p. 1897
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (117K) -
尾城 隆1987 年 53 巻 10 号 p. 1899
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (1015K) -
梶原 忠彦, 畑中 顕和, 川合 哲夫, 石原 正和, 恒屋 知之1987 年 53 巻 10 号 p. 1901
発行日: 1987/10/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (118K) -
1987 年 53 巻 10 号 p. 1903a
発行日: 1987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 (29K) -
1987 年 53 巻 10 号 p. 1903b
発行日: 1987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 (29K)
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