巻号一覧
54 巻, 3 号
選択された号の論文の29件中1～29を表示しています
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桑 守彦, 野村 和徳1988 年 54 巻 3 号 p. 359-364
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe amount of marine organisms attaching to mild steel surfaces which were given cathodic protection by sacrificial anode method using aluminum alloy anode varied according to protec-tive current density. It was smallest below 30 mA/m2, largest between 50 at 300 mA/m2, and slightly smaller at 1000 mA/m2. It was also observed that the attaching organisms treated at protective current densities below 100 mA/m2 were liable to peel off from the mild steel surfaces along with corrosion products and it was easiest at 0 mA/m2 in no protective condition, while those treated at exactly or over 100 mA/m2 were difficult to peel off.
There were no variations in the kind of attaching species to differences in protective cur-rent density. It was observed that in mild steel surfaces treated at 100-150 mA/m2, each species presented uniform growth, while those treated at below 100 mA/m2 or over 150 mA/m2 showed uneven distribution of preferential species and non-uniform growth of attaching species.抄録全体を表示PDF形式でダウンロード (1285K) -
大森 迪夫, 千田 良雄1988 年 54 巻 3 号 p. 365-375
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe life history of a caridean shrimp Palaemon inacrodactylus is discussed and its relation to the fluctuation mechanism of population size is examined. The life span is two years and the breeding season lasts from mid-April through early October. Larger II+ females begin to carry eggs earlier, followed by medium-sized I+. The breeding continues for about four months. In the latter part of the breeding season, earlier cohorts from II+ spawn just for a month. Each age group produces at least two cohorts. The relation of clutch size and clutch volume to carapace length and the maximum GSI differs depending on age, showing that the reproductive effort of 0+ is considerably larger than the older ones. The difference in reproductive ecology implies that respective age groups play a different role in the persistance of species.抄録全体を表示PDF形式でダウンロード (668K) -
大森 迪夫, 千田 良雄1988 年 54 巻 3 号 p. 377-383
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーA caridean shrimp Palaemon macrodactylus was reared in aquaria, and frequency of spawning during a breeding season, growth and survival were observed. Spawning was carried out five to nine times for I+ females and once or twice for 0+, and suspension of breeding for a long time was found late in the breeding season. Contrary to the hypothesis proposed previously by a number of Japanese fisheries biologists, death of 0+ spawner, even if they had spawned, was not observed. I+ females which had suspended breeding carried ripe eggs in their ovaries at the end of rearing experiment. This recovery of ovaries shows that another spawning would occur after long suspension of breeding. On the other hand, 0+ did not reproduce ripe eggs after stopping spawning, though they still adapted themselves to spawning morphologically. The life historical traits show that the females which spawn at age 0+ seem to make much reproduc-tive effort, producing eggs once or twice for a short time, while those of I+ and II+ make a little reproductive effort, spawning five to nine times during a long season. This reproductive mode would be a kind of mixed reproductive strategy.抄録全体を表示PDF形式でダウンロード (499K) -
杉本 隆成, 伊藤 喜代志, 佐藤 英夫1988 年 54 巻 3 号 p. 385-391
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーVertical profiles of the velocity, turbidity and salinity were observed over one tidal cycle in the Hattae estuary in the inner part of Ariake Bay which contains wide tidal flat. The vertical pro-files are more uniform in the flood stage than those in the ebb stage. This tidal asymmetry causes net upstream transport of the suspended sediment.
Closing the gate of the weir weakens the ebb currents but not the early flood current, thus will intensify the tidal asymmetry further.抄録全体を表示PDF形式でダウンロード (450K) -
川添 一郎, 野宗 豊彦, 栗山 伸一, 赤坂 明伸, 川内 浩司1988 年 54 巻 3 号 p. 393-399
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーGrowth hormone (GH) was isolated from an alkaline extract of pituitary glands from yellowtail, an ocean teleost. The hormone was purified to homogeneity using a three step procedure that involved gel filtration, anion exchange chromatography, and reverse phase HPLC. The purified hormone has a molecular mass 22 kilodaltones (Kd) and an apparent isoelectric point of 7.1. Amino acid composition is consistent with other vertebrate GH. The purified hormone caused a dose dependent increase in both body weight and body length, when tested in a teleost bioassay. A possible variant of GH was also identified which had an isoelectric point of 7.4 and NH2-terminal of Ile.抄録全体を表示PDF形式でダウンロード (1003K) -
松下 克己, 清水 誠, 能勢 幸雄1988 年 54 巻 3 号 p. 401-411
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe feeding conditions of larvae of anchovy and sardine in patchy distribution were surveyed in order to know the mechanisms of larval survival in the sea. The larvae and plankters were continuously collected crossing their patches at sea surface (the length of one transect segment was 0.75-3km). The patches of larvae and plankters detected were caused by oceanographic structure (i.e., front and upwelling) and were transported with eddy generated behind island by ocean current.
The guts of the larvae collected were examined under microscope in order to know “feeding” or “non-feeding”, and the rate of feeding larvae in each segment was calculated. The rate of feeding larvae did not show any recognizable relationship with the density of their food organisms of each segment. The rate of feeding larvae was inversely correlated to the density of larvae of each segment. The rate of feeding larvae over 20mm is high and under 5mm extremely low. From these results, it is considered that the micro-patch of food organisms and the passing speed of food organisms in the visual field of larva, which is caused by turbulence of water, are possibly important in the larval feeding.抄録全体を表示PDF形式でダウンロード (1858K) -
橘高 二郎, 岩井 正樹, 吉村 正徳1988 年 54 巻 3 号 p. 413-417
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーHybridization was accomplished between Jasus novaehollandiae and Jasus edwardsii in the laboratory. Hybrid phyllosoma hatched out from female Jasus novaehollandiae were co-cultured at 18°C with phyllosoma of Jasus lalandii. From 1, 000 phyllosomas, two individuals reached the final stage; one metamorphosed into puerulus 319 days after hatching out, the other repeated the final stage 324 days after hatching. The larval life history of the hybrid resembled that of Jasus lalandii (Kittaka, 1988): at least 15 molts occurred during phyllosoma stage with 20-30 day intermolt intervals for advanced stages. The culture of Jasus hybrids throughout phyllosoma development indicates the possibility of culture of temperate palinurids. Evidence generated also supports the hypothesis that these Jasus species diversed from a single circumpolar species.抄録全体を表示PDF形式でダウンロード (814K) -
津田 良平, 熊井 英水, 中村 元二1988 年 54 巻 3 号 p. 419-428
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーIn order to study the rapid temperature descent observed from the end of spring until autumn in Uragami Bay along the east coast of the Kii Penninsula, daily surface temperature data was taken during the four seasons in 1983-86 near the fish cultivation ground. These figures, along with temperature measurements from each level of the fish cultivation construction, were then analyzed. Possible effects of this rapid temperature descent on the feeding of young cultured yellowtail Seriora quinqueradiata (Temminck et Schlegel) were also discussed.
The rapid temperature descent during the season of overall warming trends which occurs around the Kii Penninsula is caused by coastal upwellings and results in the cold water intrusion of the bottom layer. We have made it clear that the change influences the feeding amount of cultured yellowtail.抄録全体を表示PDF形式でダウンロード (1301K) -
三矢 泰彦, 浜野 龍夫1988 年 54 巻 3 号 p. 429-435
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーSamplings of decapod crustaceans were conducted in the Yukinoura River to estimate the influence of a dam having no fishway on the distribution of these animals. Eight decapods were collected from freshwater area. Two of them, Geothelphusa dehaani and Neocaridina denticulata, were landlocked species, and the others were amphidromous or catadromous species. The present fauna can not be compared directly with the fauna before the dam construction because of the absence of comparable studies. Comparing the species composition from respective sampling stations, however, the influence of the dam on their distributions can be estimated as follows: (1) Caridina typus, Macrobrachium japonicum and Macrobrachium formosense could no longer get by the dam into their former habitats. (2) Eriocheir japonicus could reach the dam lake but stopped migrating upstream into its former habitat. (3) Caridina leucosticta had the upper part of its former habitat destroyed by the dam and dam lake. (4) N. denticulata had an expansion of distribution because of the still water environment in the dam lake. (5) G. dehaani was unaffected by the dam. At first glance, Caridina japonica, a resident in the uppermost stream, can be categorized in the fifth category, but its population density seems to have decreased after the completion of dam in 1976.抄録全体を表示PDF形式でダウンロード (1322K) -
今井 健彦1988 年 54 巻 3 号 p. 437-440
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe Purpose of this study is to obtain the experimental equation on the surface area of the twisted knotless netting, as a basic study for the fluid dynamical resistance, when the netting piece is set strictly parallel or almost parallel to the flow direction.
The experimental equations are derived from the measured values of paraffin model peri-meter as follows:-
1) The surface area of joint portion can be expressed as,
AK=10.27d2
2) The surface area of leg portion can be expressed as,
AL=6.61d(l-2.08d)
3) The resultant equation for the surface area of the (i×j) meshed twisted knotless netting is derived as,
A=2ijd(5.47d+6.61l)+10.27d2(i+j)
d: Diameter of twine
i: Mesh numbers on the twinewise direction
j: Mesh numbers on the normal direction
l: Leg length抄録全体を表示PDF形式でダウンロード (246K) -
神原 淳, 丹羽 宏, 小栗 幹郎1988 年 54 巻 3 号 p. 441-446
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe retinal pigment epithelial cells (RPE cells) in a littoral elasmobranch (Triakis scyllia) and those of a deep sea elasmobranch (Deania eglantina) were similar in their fine structures with the same cell organelles. These RPE cells were completely lacking in pigment granules. However, differences in the following were also found between the two species; the size of the RPE cells, the developmental degree of the basal cytoplasmic infoldings and the density of mito-chondria. The RPE single-cell layer of Triakis was thick (13-18μm) with well developed basal cytoplasmic infoldings. In contrast, that of Deania was thin (6-10μm) with less developed basal cytoplasmic infoldings. Mitochondria were observed at the basal zone of the RPE cells of both species, but they were more abundant in Triakis than in Deania. So it was estimated that the activity of RPE cells in Triakis is higher than that of Deania. This may be due to the differences of the light in the environments they live in, shallow and deep waters.抄録全体を表示PDF形式でダウンロード (2747K) -
神原 淳, 丹羽 宏, 小栗 幹郎1988 年 54 巻 3 号 p. 447-451
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーStructural comparison of the retinas was performed between shallow and deep sea elasmo-branchs. One of the most noticeable differences between them was in the structure of the hori-zontal cells. The horizontal cells of the shallow sea elasmobranchs were larger and three different cell types, the external, intermediate and internal horizontal cells were distinguished. The three kinds of horizontal cells formed three distinct layers horizontally in the inner nuclear layer. How-ever, the horizontal cells of the deep sea elasmobranchs were generally smaller in size and situated in a disordered manner, lacking layer formation. It was also noted that the horizontal cells of both the shallow and deep sea elasmobranchs are poor in cell organelles in comparison with other retinal neurons.抄録全体を表示PDF形式でダウンロード (3888K) -
Takehiko Imai1988 年 54 巻 3 号 p. 453-456
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe purpose of this study is to obtain the experimental equation concerning the surface area of the Reschel knotless netting, as a basic study for the fluid dynamical resistance, when the netting piece is set strictly parallel or almost parallel to the flow direction.
The experimental equations are derived from the measurements of six paraffin models of the Raschel knotless nettings.
1) From the measured values of the perimeter of the section on the joint portion of the paraffin model. The experimental equation of the surface area of joint portion is derived as follows:-
AK=12.20d2
2) From the measured values of the perimeter on the leg portion and the length of the joint portion, the experimental equation of the surface area of leg portion is derived as follows:-
AL=6.14dl-17.75d2
3) From these results, the surface area of the Raschel knotless netting with the i×j meshes can be expressed in the following equation:-
A=2ij(6.14l-5.55d)d+12.20(i+j)d2
A: Surface area of a Reschel knotless netting
AK: Surface area of joint portion
AL: Surface area of a leg portion
f: Length of a joint portion
Δf: Interval of the section on the joint portion
i: Mesh numbers on the twinewise direction
j: Mesh numbers on the normal direction
l: Leg length
PKm: Perimeter of joint portion on the mth section
PL: Perimeter of a leg portion抄録全体を表示PDF形式でダウンロード (221K) -
吉川 弘正, 石田 義成, 上野 三郎, 満田 久輝1988 年 54 巻 3 号 p. 457-462
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーChanges of respiration, behavior, and depth of anesthesia were examined in carp that were individually kept in a chamber supplied with water bubbled with an equi-mixture of CO2 and O2.CO2 had an anesthetic effect on all the carp at Pco2 ?? 125, 150, and 175mmHg, but these partial pressures in the ambient water were fatal in 10, 20, and 70% of the carp, respectively. Although all the carp survived in the experiment using Pco2 ?? 100mmHg, only 50% of them became anesthetized. The depth of anesthesia progressed with time and the Pco2. Recovery time from anesthetic state was 13-130min, the mean recovery time being about 40min in all experiments. The optimum anesthetic concentration for adult carp seemed to be between Pco2=100mmHg and 125mmHg.抄録全体を表示PDF形式でダウンロード (434K) -
小畠 渥, 土井 敏男, 伊藤 慶明1988 年 54 巻 3 号 p. 463-468
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーIt has been shown that the rapid degradation of inosinic acid (IMP) in the dark muscle of common mackerel Scomber japonicus is possibly catalized by an enzyme having high activity at pH 6.0. The enzyme was extracted from acetone powder and purified by the two steps of affinity chromatography on Concanavalin A-Sepharose and DEAE-cellulose chromatography. The purified enzyme was shown to be homogeneous by disc polyacrylamide gel electophoresis and its molecular weight was estimated to be about 9×104 by gel filtration. The enzyme was identified as acid phosphomonoesterase (EC 3.1.3.2), since it hydrolyzed 5'-IMP optimally at pH 5.5 and hydrolyzed various phosphorylated compounds including 5'-nucleotides, 3'-nucleo-tides, glucose-6-phosphate, β-glycerophosphate and p-nitrophenyl phosphate (p-NPP). The enzyme was inhibited by Cu2+, Zn2+, Fe2+ and NaF, but was not affected by Mg2+, Mn2+, Co2+, Ni2+, Ca2+, EDTA and iodoacetic acid. The presence of the other acid phosphatase which hydrolyzes p-NPP but not 5'-IMP was presumed in an unadsorbed fraction to Concanavalin A-Sepharose.抄録全体を表示PDF形式でダウンロード (422K) -
ホセイン モハメドアブル, 古市 政幸, 米 康夫1988 年 54 巻 3 号 p. 469-471
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーAttempts were made to examine whether the liquid obtained from the mackerel waste juice could be utilized as a nutrient source by yeast or not. Yeast, Saccharomyces serevisiae IFO 2114, grew sufficiently in 75% sea water containing 2.5% liquid. Moreover, 1% glucose or molasses added as a carbon source into the culture medium accelerated growth of the yeast. The stationary phase was observed after 30h from beginning of the yeast culture. The nitrogen and phosphorus contents in the culture medium decreased with the yeast growth. These results indicate the possi-bility of a large scale cul¡ure for yeast by use of the liquid prepared from fish waste juice.抄録全体を表示PDF形式でダウンロード (197K) -
周 照仁, 落合 芳博, 渡部 終五, 橋本 周久1988 年 54 巻 3 号 p. 473-478
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe effect of storage temperatures at around freezing point (-3°and -6°C) on the autoxida-tion of bluefin tuna myoglobin (Mb) was examined.
Autoxidation rate of Mb tended to decrease with lowering of storage temperature (0°C> -3°C>-6°C). Once frozen, however, the Mb showed higher values of metMb% than that at °C (0°C<-3°C<-6°C).
Discoloration rates of tuna meat during storage at -3°and -6°C generally were slower than those at 0°C, irrespective of the state of meat. When the meat stored at -20°C or -80°C for 1 to 2 weeks remained frozen during a subsequent storage at -3° and -6°C, it discolored faster for initial 4 days, but, after then, more slowly than the control meat stored in ice.
These results suggested that unfrozen state is preferable to partially frozen state for storage of tuna meat at around freezing point.抄録全体を表示PDF形式でダウンロード (379K) -
上野 隆二, 堀口 吉重, 窪田 三朗1988 年 54 巻 3 号 p. 479-484
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーLevels of an antibacterial agent, oxolinic acid, in yellowtail after oral administration were determined by high performance liquid chromatography, and the following results were obtained.
1) The recoveries of oxolinic acid from muscle, liver, kidney and blood were 86, 78, 84 and 77%, respectively.
2) After oral administration of oxolinic acid, dosage of 200mg/kg, the concentration of the drug in the tissues reached peak levels of 1.2-4.9 μg/ml or g at 3-9h post dosing, followed by a gradual decrease to ‹1μg/ml or g within 24h post dosing. High concentration of oxolinic acid was observed in the order of kidney› bile› spleen› muscle› blood› brain› liver.
3) After oral administration of oxolinic acid, dosage of 50mg/kg, the drug disappeared almost entirely from the blood and the liver at 3-day post dosing, while the remaining drug was detected in muscle, kidney, spleen and brain at 8-day post dosing.
4) Glucuronic acid conjugate of oxolinic acid was found in all the tissues by treatment with β-glucuronidase. The unidentified compound was also found in tissues, especially liver and bile at 3 and 24-h post dosing (200mg/kg), it conjugated with glucuronic acid and had no antibacterial activity against Aeromous sp.抄録全体を表示PDF形式でダウンロード (390K) -
上野 隆二, 奥村 雅人, 堀口 吉重, 窪田 三朗1988 年 54 巻 3 号 p. 485-489
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーLevels of an antibacterial agent, oxolinic acid, in salmonids such as rainbow trout and am ago salmon were determined by high performance liquid chromatography. After oral administration of oxolinic acid, doseage of 40mg/kg, the concentration of the drug in tissues of rainbow trout and am ago salmon reached peak levels of 3.33-23.2 and 2.80-14.4μg/g or ml at 2-3-day post dosing, respectively when they were kept at a water temperature of 15°C. The oxolinic acid remained in rainbow trout was detected on the 9-day, while that in amago salmon was detected on the 27-day post dosing. There was no difference in organotropy of oxolinic acid between the two fish species, that is, kidney> liver> muscle> blood. The effect of water temperature on absorption and excretion of oxolinic acid in rainbow trout was examined. The peak levels of the drug in the tissues at 15°C were attained within 2 days, and these levels disappeared at 12-day post dosing, while those of the drug at 10°C were within 3 days and these levels disappeared at 18-day post dosing.抄録全体を表示PDF形式でダウンロード (339K) -
Shanta Nair, 塚本 久美子, 清水 潮1988 年 54 巻 3 号 p. 491-496
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーFreshly captured chaetognath Sagitta samples were grouped into apparently healthy and abnormal specimens and the viable heterotrophic bacterial population of both groups were ex-amined. The bacterial population ranged from 1.3×102 to 1.0×104 per animal, and was one order higher in opaque specimens regardless of whether they were still moving or moribund at the time of capture. Although Pseudomonas-Alteromonas was the predominant bacteria in both groups, Vibrio comprised 36.3%, of the bacterial population in the abnormal Sagitta. By the method of numerical taxonomy the total 143 strains were grouped into 14 main phena, of which 4 were exclusively composed of strains from healthy Sagitta and 1 from abnormal Sagitta. The rest of the strains were unevenly distributed into 9 phena, 4 of which were mostly comprised of strains from abnormal Sagitta and 1 of which mostly included strains from healthy Sagitta. In general, the isolates of abnormal Sagitta grew under a wide range of physiological conditions and showed greater hydrolytic activities of organic compounds.抄録全体を表示PDF形式でダウンロード (2140K) -
原 研治, 坂井 堅太郎, 石原 忠1988 年 54 巻 3 号 p. 497-504
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーAn aminopeptidase from carp Cyprinus carpio ordinary muscle was purified 700-fold by ammonium sulfate fractionation, ion-exchange chromatography, gel filtration and hydroxyapatite chromatography. The final enzyme preparation showed a single protein band on polyacrylamide gel electrophoresis (PAGE) and on sodium dodecyl sulfate (SDS) PAGE in the presence of 2-mercaptoethanol. The molecular weight of the enzyme was about 84, 000 and 94, 000 by gel filtration and SDS-PAGE, respectively. The enzyme was inhibited by p-chloromercuribenzoate, 5, 5'-dithiobis(2-nitrobenzoic acid), N-ethylmaleimide, p-tosyl-L-phenylalanine chloromethylketone, ptosyl-L-lysine chloromethylketone, EDTA, o-phenanthroline, puromycin and some heavy metal ions such as Cu2+, Zn2+, Hg2+ and Cd2+. The enzyme was activated by sulfhydryl compounds and Co2+. The enzyme had a broad specificity for hydrolysis of aminoacyl-β-naphthylamides (βNA), and pH optimum was 7.5. Ala-, Phe-, Lys-, Arg-, Leu-, Tyr- and Trp-βNA were suitable substrate for the enzyme, and Ser-, Pro-, Gly-, Val-, Ile- and Asp-βNA were poor substrate. Among the peptides used (Ala)5 and (Ala), were most rapidly hydrolyzed, and the relative rates of hydrolysis for both substrates were 2-fold higher than that of (Ala)3; and (Ala)3 was hydrolyzed about 60-fold higher than that of (Ala)2.抄録全体を表示PDF形式でダウンロード (1460K) -
須山 三千三, 平野 敏行, 鈴木 健1988 年 54 巻 3 号 p. 505-509
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe distribution of nitrogenous compounds in the hot water extracts of snapping turtles cultured with six different diets was investigated. Although the amounts of nitrogenous compounds fluctuated among the specimens examined, carnosine, taurine, glutamic acid, histidine, inosine monophosphate, adenosine monophosphate, creatine, and creatinine were found to be relatively in high concentrations. The main component was gelatin, where nitrogen accounted for 72-80% of the total nitrogen in the hot water extracts. The changes in level of free amino acids and related compounds in the hot water extracts of the animals obtained from a commercial source were also investigated during heating. Carnosine, histidine, and taurine, all of which were present initially in large quantities, decreased rapidly and their amounts were approximately halved after 48h of heating. The degree of browning of the hot water extracts increased rapidly after 12h, possibly relating to the decrease in levels of such nitrogenous compounds. Gelatin contents increased rapidly and reached a maximum level after 24h.抄録全体を表示PDF形式でダウンロード (330K) -
西島 敏隆, 畑 幸彦1988 年 54 巻 3 号 p. 511-516
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーDistribution of vitamin B12, thiamine, and biotin in the sediment, both whole sediment and their interstitial water, of Harima-Nada Sea are described. And the possible role of these vitamins as a source of the ones contained in the sea water is discussed.
Most of vitamin B12 in the sediments were found to be absorbed on the sediment particles. Total vitamin B12 contents in the surface sediments ranged 4.14-88.3 ng/g wet weight. Vitamin B12 levels in the interstitial water of surface sediments were fairly low; the contents were 0.53-42.0 pg/g wet weight. The vitamin B12 contents in the whole sediment was generally highest in the surface and sharply decreased with the increasing sediment depth. But the levels of vitamin B12 in the interstitial water contained in the sediment of the unit wet weight were rather constant up to the depth of 15 cm of the core. Thiamine contents were 3.3-92.2 ng/g wet weight in the whole sediment and 0.45-9.18 ng/g wet weight in the interstitial water. The ranges of biotin content in the whole sediment and the interstitial water were 0.03-1.37 ng/g wet weight and 0.48-88.6 pg/g wet weight, respectively. The contents of these vitamins in the whole sediment were about 102-104 times as much as those in the water of this region. The vitamins accumulated in the sediment are suggested as an important source of the ones contained in the overlying water.抄録全体を表示PDF形式でダウンロード (397K) -
里見 弘治, 佐々木 明男, 横山 理雄1988 年 54 巻 3 号 p. 517-521
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーDuring the storage of fish sausage, both degradation of nitrosopigments and development of oxidative off-flavor proceeded in proportion to the oxygen permeability of packaging mate-rials. When sausage was packaged by material of zero oxygen permeability, neither degrada-tion of nitrosopigments nor oxidative deterioration of flavor occurred. As to the protective effect of colored cellophane against the degradation of nitrosopigments of fish sausage under illumination of sun light and fluorescent light, red color was the most effective followed by violet, blue and green color in this order. Orange and yellow colors were not effective. There-fore it appeared that the light of 500-600nm wave length had the strongest effect on the degrada-tion of nitrosopigments in fish sausage.抄録全体を表示PDF形式でダウンロード (364K) -
高橋 是太郎, 平野 次彦, 斎藤 学1988 年 54 巻 3 号 p. 523-528
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーThe relative retention value of the individual triglyceride molecular species on reverse phase high performance liquid chromatography was considered to be dependent principally on the addi-tion theorem of chemical potentials of the three fatty acid residues.
It was demonstrated that the chemical potential of each fatty acid residue is proportional to the relative retention potential index i. e. the logarithm of the relative retention value of each fatty acid residue; and that the addition of the relative retention potential indexes of the three fatty acid residues denoted the logarithm of the relative retention value, the relative retention time of each individual molecular species of triglyceride.
Triglyceride molecular species from sand flounder was analyzed and compared with the theoretically predicted values.抄録全体を表示PDF形式でダウンロード (427K) -
天野 秀臣, 藤吉 利彦, 野田 宏行1988 年 54 巻 3 号 p. 529-536
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーWhitefish Coregonus muksun is one of the newly introduced fresh-water fishes to Japan. Little is known about the body components. The present investigation described the changes of chemical composition of the transplanted fish in a reservoir to cultured fish. Though the proximate com-posi tion did not differ much from that of the control fish during 3 months after transplantation, crude fat content thereafter decreased to about one half. Nonprotein nitrogen content was always lower than that of the control. With regard to free amino acid and fatty acid compositions, increase of anserine and polyenoic fatty acids contents and decrease of monoenoic fatty acids contents were characteristic during 2 months after transplantation.
When the fish was starved, increase of moisture and anserine contents and decrease of crude protein, crude fat, nonprotein nitrogen and histidine contents were remarkable.抄録全体を表示PDF形式でダウンロード (486K) -
山羽 悦郎, 小野里 坦, 山崎 文雄1988 年 54 巻 3 号 p. 537
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (1146K) -
塩見 一雄, 坂本 圭久, 山中 英明, 菊池 武昭1988 年 54 巻 3 号 p. 539
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (110K) -
鈴木 健, 平野 敏行, 須山 三千三1988 年 54 巻 3 号 p. 541
発行日: 1988/03/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (94K)
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