巻号一覧
51 巻, 8 号
選択された号の論文の26件中1～26を表示しています
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Charles S. MANOOCH III, Diane L. MASON, Russell S. NELSON1985 年 51 巻 8 号 p. 1207-1218
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーA total of 2, 134 little tunny Euthynnus alletteratus were examined. Specimens ranged from 172 to 885mm fork length (FL) and were captured by hook and line and seines off the southeastern United States and from the Gulf of Mexico in 1980 and 1981. Approximately 57% (1, 212) of the stomachs contained ingested materials consisting of 20, 742 individual items, displacing 62, 961ml, and representing over 100 different categories. Fishes occurred in 66.9% of the stomachs with food, invertebrates in 30.5%, and miscellaneous items (Sargassum, seagrasses, inorganics, etc.) in 11.3%. Little tunny feed primarily in coastal waters on fishes, such as sardines, scads, and anchovies, and invertebrates. In decreasing order of importance clupeids, engraulids, unidentifiable fish, carangids, squid, stomatopods, penaeids, diogenids, stromateids, and synodontids were the most important foods in the diet, based on the index of relative importance (IRI). Diets differed with fish size (4 size classes), area of collection (8 areas) and season (4 seasons). Bray-Curtis similarity coefficients were used to compare the diet of little tunny with those of king mackerel Scomberomorus cavalla and Spanish mackerel S. maculatus collected from the same areas. Generally, the little tunny diet was more similar to that of king mackerel than to that of Spanish mackerel. All three coastal pelagic predators fed extensively on clupeids, carangids, and squids. Small crustaceans were more important to the diet of little tunny, and engraulids were more frequently eaten by Spanish mackerel.抄録全体を表示PDF形式でダウンロード (865K) -
谷口 順彦, Julie M. MACARANAS, Roger S. V. PULLIN1985 年 51 巻 8 号 p. 1219-1224
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーTilapia populations, assumed by culturists to be Nile tilapia Oreochromis niloticus, were sampled from five farms and one research center around Laguna de Bay, Philippines and their identity were investigated by starch gel electrophoresis of polymorphic and monomorphic isozymes and by isoelectric focusing of sarcoplasmic protein markers. A reference stock of O. mossambicus from natural waters was similarly examined.
Data from morphological characters were inconclusive. However, from 20 biochemical loci investigated, five isozyme and two sarcoplasmic protein loci were found to be reliable species specific markers and from this evidence the introgressive hybridization by O. mossambicus was found in all the assumed Nile tilapia populations. The percentage of pure O. niloticus individuals with no O. mossambicus biochemical markers ranged from 0-40 between populations. Individuals heterozygous for all the biochemical marker loci (assumed to be F1 hybrids) were rare. The mean percentage frequency of O. mossambicus marker alleles in the six populations was 13.6 (range 8.2 to 17.9). Their genic variabilities, indicated by proportion of polymorphic loci (P=0.30 to 0.40) and mean expected heterozygosity (He=0.047 to 0.104), were almost all higher than published values for Egyptian O. niloticus (P=0.18, He=0.061). For the Philippine O. mossambicus examined and for wild Egyptian fish, the respective values of P and He were 0.10 and 0.021 compared to 0.05 and 0.002. For the six Philippine O. niloticus populations, the ratios of observed to expected heterozygosities (Ho:He) were all>1.000 (range 1.021 to 1.103).
The importance of conservation of tilapia genetic resources, the need to ascertain the identity of farmed and experimental populations, the provision of single species and hybrid seed for culturists and future approaches to genetic improvement are discussed relative to these results,抄録全体を表示PDF形式でダウンロード (440K) -
加藤 進1985 年 51 巻 8 号 p. 1225-1232
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーA time-series analysis was applied to monthly monitoring data (water temp., pH, DO, Sal., and COD) collected during Jan. 1973 to Dec. 1982 at Ise bay. Significant trend variation was not observed at any points but seasonal variation was observed by correlogram and power spectrum analysis. Moreover, behavior of parameters in ten-year period were simply illustrated with “Season Index” by fixed or moved season method. And the free COD-range of seasonal variation obtained by 12-month moving average method were 0.5-3.0, 0.4-1.9, and 0.5-1.4ppm at St. 1, St. 11 and St. 18 respectively. These ranges decreased from inner to outer part of the bay. Total variation of water temp. and salinity could be explained as 90% and 50% by monthly or yearly variation independently upon observing points but other parameters showed irregular variation depending upon observing points.抄録全体を表示PDF形式でダウンロード (490K) -
フルビオ サラティ, 楠田 理一1985 年 51 巻 8 号 p. 1233-1237
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーTo clarify the protective properties of Edwardsiella tarda polysaccharide reported previously, and to confirm the supposition that the elimination of lipid A from the immunogen can increase the immune protection of the preparation in the eels against experimental challenge with E. tarda EF-1, crude lipopolysaccharide (LPS), purified polysaccharide and whole cell without lipid were injected intramuscularly in the eels.
The highest survival was recorded in eels immunized with crude LPS preparation and good resistance was shown also in the eels immunized with the whole cell without lipid Eels immunized with purified polysaccharide did not show protection after challenge. Chemical analysis showed a high degree of purification for the polysaccharide preparation and perhaps this was the reason for the loss of immunogenicity and effectiveness of the preparation. This may have shown the importance of protein and nucleic acid as haptenes or carriers in the preparations. The results also suggested that the elimination of the lipidic part from the whole cell may be an easy way to obtain an effective vaccine preparation against E. tarda infection.抄録全体を表示PDF形式でダウンロード (542K) -
木谷 浩1985 年 51 巻 8 号 p. 1239-1248
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe larval stages of the pink shrimp Penaeus duorarum BURKENROAD reared in the laboratory are described and compared with earlier descriptions of this species. While there are fundamental similarities with the earlier descriptions, this experiment has revealed differences in the number of naupliar stages and in setal formation of each stage. The larval development of the pink shrimp is very similar to that of the brown shrimp Penaeus californiensis HOLMES on the Pacific coast.抄録全体を表示PDF形式でダウンロード (782K) -
青木 宙, 野村 潤一郎, クローサ Ｊ．Ｈ．1985 年 51 巻 8 号 p. 1249-1254
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe plasmidless Vibrio anguillarum strain PT479 obtained after seven passages in ayu Plecoglossus altivelis was highly virulent to ayu. An isogenic strain from the 20th passage in a lab medium had low virulence. The uptake of radioactive iron by the high-virulent strain was more rapid than that of the low-virulent strain. The highly virulent strain was able to grow in an M9 salts medium supplemented with 0.5% (wt/vol) glucose, 20μg each of aspartic acid and histidine per ml, and 2μM transferrin. The low-virulent strain was inhibited under such conditions. The outer membrane protein pattern did not change in either the high-virulent strain or the low-virulent isogenic strain. However, there was a difference in lipopolysaccharide (LPS) structure. A high-molecular weight band was evident in the high-virulent strain. The amount of proteins with the molecular weights ranging from 67, 000 to 100, 000 daltons increased in the outer membrane of both high-and low-virulent strains grown under iron limitation. The production of LPS was enhanced in the high-virulent strain compared to the low-virulent strain as determined by the Limulus test.抄録全体を表示PDF形式でダウンロード (1204K) -
小山 次朗, 山脇 啓輔, 舞田 正志, 若林 慶子, 池田 弥生, 尾崎 久雄1985 年 51 巻 8 号 p. 1255-1260
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe present study was carried out to investigate tissue enzymes available as indicators for Cd water pollution. Carp (Cyprinus carpio, 304±55g in body weight) were exposed to Cd (50μg/l, CdCl2⋅21/2H20) for 2 and 6 weeks. There were no effects on hematoclit value and hemoglobin concentration after 2 week exposure and on serum Ca, inorganic P, Na and K concentrations after 2 and 6 week exposure, while after 6 week exposure hematoclit value and hemoglobin concentration decreased. These decreases indicate that the Cd-exposed fish were anemic. Because the serum GOT, GPT, Al-P, Acid P and LDH activities of Cd-exposed fish did not significantly change and showed remarkable variation, these were not available as indicators.
There were no effects on the activities of Al-P and LDH in hepatopancreas, Al-P in kidney and ChE in brain. On the other hand, the activities of GOT and GPT in hepatopancreas and Al-P in gill inclined to decrease, while the activities of Acid P in hepatopancreas, kidney and gill and LDH in kidney inclined to increase. But there were no necessarily proportional dose-response relationships between activities of tissue enzymes and Cd content in hepatopancreas.
In conclusion, these results indicate that Cd exposure produces effects on the activities of GOT and GPT in hepatopancreas, Al-P in gill, Acid P in hepatopancreas, kidney and gill and LDH in kidney. Especially, Acid P activity in each tissue is considered to be one of the most suitable indicators for Cd water pollution.抄録全体を表示PDF形式でダウンロード (462K) -
青海 忠久1985 年 51 巻 8 号 p. 1261-1267
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe effect of a wild zooplankton supply on the appearance of albinism in juvenile flounder P. olivaceus was studied by two rearing experiments. Flounder larvae were initially reared with only rotifer Brachionus plicatilis and then given wild zooplankton and rotifer or only wild zooplankton, from 5.50-5.57mm TL to complete metamorphosis. These were compared with those given Brazilian Artemia sauna nauplii and rotifer during the same stage. Larvae given wild zooplankton showed poorer growth and lower survival rate than those given Artemia. However the frequency occurrence of albinism in the former was very much lower (0.1-1.8%) than in the latter (97.2-100.0%). When flounder larvae were given wild zooplankton and rotifer, they took 40.0-76.3% rotifer in number during pelagic stage, These results suggested the possibility of preventing albinism through the improvement of cultured foods during early life stage.抄録全体を表示PDF形式でダウンロード (481K) -
西田 睦1985 年 51 巻 8 号 p. 1269-1274
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーGenetic differentiation in a sample of Ayu (Plecoglossus altivelis) from the Ryukyu Islands and in two samples, an amphidromous population of Kyushu and a landlocked population of Lake Biwa, from the Japan Islands was studied by examining the variation in 28 genetic loci by starch gel electrophoresis. Allele substitutions were observed at virtually 4 loci in the populations of the Japan and Ryukyu Islands. The mean genetic distance between the populations of these two regions was 0.19, which far exceeds the range of distance commonly observed between conspecific populations. Within the Japan Islands, the genetic distance between the amphidromous population of Kyushu and landlocked population of Lake Biwa was much smaller, being 0.02, even though considerable differences in allele frequencies were observed at two loci. These results, along with geological evidence, indicate that Ayu in the Ryukyu Islands has existed as a genetically unique stock isolated from that of the Japan Islands since the middle Pleistocene.抄録全体を表示PDF形式でダウンロード (1200K) -
堀川 博史, 通山 正弘1985 年 51 巻 8 号 p. 1275-1280
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーData on 47 otter trawls towed at depths of 30 to 400m in Tosa Bay show demersal fish fauna changes by depth. Results of cluster analysis of the data suggest that three distinct faunal zones exist on the continental shelf (30 to 100m), upper continental slope (165 to 400m), and between them (100 to 165m). Rapid changes of the species recruitment curve mean the species composition of the faunae extensively changes at the two boundaries. Common species among adjacent zones occupy 30 to 40% of the total number of species in each zone. However, the rate is less than 10% between the shelf and the upper slope. These results suggest that the zone from 100 to 165m is the transitional region between the shelf and the upper slope.
Value of the species diversity is high through the shelf and transitional region, and low on the upper slope. The species diversity is largely affected by species evenness within the faunae, and the low species diversity on the upper slope is mainly attributed to a dominant species, Chlorophthalmus albatrossis.抄録全体を表示PDF形式でダウンロード (524K) -
豊原 治彦, 牧之段 保夫, 池田 静徳1985 年 51 巻 8 号 p. 1281-1286
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーIn order to examine the participation of calpain and calpastatin in the biological process, carp eggs were chosen as the experimental material. Calpain activity was hardly detected in carp egg crude extract. However, the activities of calpain and calpain inhibitor became recognizable through the DEAE-cellulose chromatography of the crude extract. Carp egg calpain partially purified by further column chromatographies was classified as calpain II from the degree of Ca2+ requirement for the activity. The optimum pH was 7.1-7.2 and the activity was strongly inhibited by leupeptin, E-64 and antipain.
Carp eggs seemed to contain also calpastatin, endogenous inhibitor for calpain, since the inhibitory activity was extremely heat stable.抄録全体を表示PDF形式でダウンロード (717K) -
鈴木 健, 須山 三千三1985 年 51 巻 8 号 p. 1287-1292
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーRainbow trout egg phosvitin prepared by the method of WALLACE et al. had molecular weight of 20, 000 which was about half of 41, 000 of hen's egg yolk phosvitin. It contained 57 residues of serine per molecule, followed by 15 of arginine and 10 of aspartic acid, and also contained 7 residues of glucosamine, 5 of mannose, and 3 of galactose. The molar ratio of serine and phos-phate was 1:1, and all of the phosphate were released by β-elimination reaction. Other inorganic components such as iron and copper were not detected in the phosvitin.
The precipitates obtained from the trichloroacetic acid extracts of rainbow trout eggs by precipitating with ethanol were separated into glycoprotein, phosvitin, and phosphopeptides by gel filtration. The phosphopeptides were composed mainly of components having molecular weights of about 1, 300 and 5, 400. Serine content of phosphopeptides was similar to that of phosvitin, but the composition of several amino acids differed with each other. These results show that phosphopeptides are naturally occurring in the rainbow trout eggs. The amounts of phosvitin and phosphopeptides are 0.49g and 0.47g per 100g of the rainbow trout eggs, respectively, while hen's egg yolks were lacking in phosphopeptides.抄録全体を表示PDF形式でダウンロード (601K) -
渡辺 勝子, 上原 博巳, 佐藤 元信, 鴻巣 章二1985 年 51 巻 8 号 p. 1293-1298
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーSeasonal variation of extractive nitrogenous components in the muscle of the cultured ascidian Halocynthia roretzi was investigated in the specimens collected bimonthly from January 1983 to January 1984 at Okkirai Bay, Iwate Prefecture. The ascidian muscle extracts were characterized by being rich in free amino acids, especially in taurine, proline, glutamic acid, glycine, alanine and histidine. Considerable amounts of quaternary ammonium bases such as glycinebetaine and homarine were found, but arginine and creatine were scanty.
Extractive nitrogen, most free amino acids, and nucleotides and related compounds showed a pronounced annual cycle with maximum in summer and/or autumn and minimum in winter.
The nitrogen of free amino acids accounted for 47-67% of extractive nitrogen, which was followed by those of glycinebetaine(9-19%), nucleotides and related compounds(5-9%), and other constituents such as homarine, trigonelline, trimethylamine oxide, trimethylamine, creatine and creatinine(5-14%). The sum total amounted to 80-90% of extractive nitrogen, but was fairly lower than those so far found by us in the muscles of other marine animals.抄録全体を表示PDF形式でダウンロード (377K) -
山本 義和, 井上 雅代1985 年 51 巻 8 号 p. 1299-1303
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThis paper deals with the protective effects of dietary L-ascorbic acid (AsA) and dehydro-L-ascorbic acid (DAsA) on acute cadmium toxicity in rainbow trout Salmo gairdneri.
Five groups of thirty-five fish, which had been fed on AsA or DAsA-supplemented diets and the AsA and DAsA-free diet for 24 days, were exposed to 0.14 ppm cadmium solution. The survival times of fish fed on diets containing 600mg/100g of AsA or DAsA were significantly extended as compared with those of fish fed on AsA and DAsA-free diet. The total-AsA contents in the whole bodies of dead fish were proportional to the survival times of the fish.
These results indicate that large amounts of dietary AsA or DAsA reduce the acute cadmium toxicity in rainbow trout.抄録全体を表示PDF形式でダウンロード (338K) -
岡野 正義, 深宮 斉彦, 藤田 智之, 松本 宏志, 荒谷 孝昭1985 年 51 巻 8 号 p. 1305-1310
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe present paper describes the identification of nonpolar constituents such as sterols, fatty acid methyl esters, and hydrocarbons of Hizikia fusiformis (HARVEY) OKAMURA (Phaeophyceae) growing profusely in the Seto Inland Sea of Japan. Sterol fraction was characterized by cholesterol, 24-ketocholesterol, 24, 28-epoxyfucosterol, and saringosterol (a mixture of 24R- and 24S-isomers) which were newly isolated in addition to fucosterol and 24-methylenecholesterol identified already by Komura et al.1) Fatty acid methyl ester and hydrocarbon fractions were respectively characterized by straight chain saturated and unsaturated C14-C24 fatty acid methylesters and by straight chain C14-C30 saturated hydrocarbons.抄録全体を表示PDF形式でダウンロード (395K) -
佐伯 宏樹, 尾崎 弘忠, 野中 道夫, 若目田 篤, 信太 茂春, 新井 健一1985 年 51 巻 8 号 p. 1311-1317
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーCarp myofibrils were suspended or dissolved in the media containing varied concentrations of CaCl2 and NaCI conferring different ionic strengths, and the water-holding capacity (WHC) of myofibrils and thermal denaturation rate (KD) of myofibrillar Ca-ATPase were studied.
A large decrease in WHC of myofibrils was found to occur when the ionic strength (I) of the medium remained low (1=0.05-0.1) and CaCl2 was further added to the medium at a concentration of less than 15mM. In addition, it was apparent that the reduction WHC occured without denaturation of myofibrillar protein.
When the myofibrils were dissolved in 0.5M NaCI, the rate for thermal denaturation of myo-brillar protein was remarkably increased on the addition of CaCl2. However, the promoting effect of CaCl2 on the denaturation of myofibrils was not caused by the increase in I of medium. It was thus suggested that some reaction between Ca2+ and myofibrillar protein resulted in the acceleration of the denaturation of myofibrillar protein.抄録全体を表示PDF形式でダウンロード (569K) -
上田 泰司, 中村 良一, 鈴木 譲1985 年 51 巻 8 号 p. 1319-1324
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーA great portion of radionuclides released into coastal sea is adsorbed into marine sediments and the adsorbed radionuclides causes the radioactive contamination of marine organisms and then transferred to human beings who consume them. In order to make a quantitative evaluation of this route, the transfer of 9 kinds of radionuclides from sediments to benthic organisms such as algae, bivalve and worm was observed. Then it was compared with the radioactivity in these organisms from radioactively contaminated sea water (Concentration factor). It was observed that the influence of sea water was larger than that of sediments as it was 104 times larger for 54Mn, 103 times larger for 59Fe, 60Co, 95Zr-95Nb, 106Ru-106Rh and 144Ce-144Pr, 102 times larger for 65Zn and 10-102 times larger for 115mCd and 137Cs.
Consequently, sea water can be considered as the main route and sediments as the secondary in the case of quantitative comparison of the effect on the accumulation of radionuclides by marine organisms and in the transfer of radionuclides to human beings.抄録全体を表示PDF形式でダウンロード (373K) -
杉田 治男, 徳山 健司, 出口 吉昭1985 年 51 巻 8 号 p. 1325-1329
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーMicroflora in the contents of intestinal tract of carp, grass carp and tilapia was investigated using 7 different agar media. The intestinal microflora varied with the species of fish. The predominant bacteria in the intestinal tract of carp were Aeromonas hydrophila, Bacteroides type A, Citrobacter freundii, Pseudomonas and Micrococcus. The intestinal microflora of grass carp mainly consisted of A. hydrophila and Bacteroides type A. The intestinal microflora of tilapia was mainly composed of Bacteroides type A, Bacteroides type B, Plesiomonas shigelloides and A. hydrophila. The ratio of the obligate anaerobes to the facultative anaerobes plus aerobes of carp, grass carp and tilapia was 0.05 to 0.95, 0 to 0.49 and 32.4 to 111.1, respectively. It is suggested that the predominance of obligate anaerobes in the intestine of tilapia was due to their long intestine.抄録全体を表示PDF形式でダウンロード (422K) -
吉岡 慶子1985 年 51 巻 8 号 p. 1331-1336
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーAt present, a large number of freeze-thawed fish have been sold without being distinguished from fresh fish at the final stage of marketing. It is important to establish a practicable method for differentiating freeze-thawed fish from the fresh one. Some studies have been reported on the differentiation, which is by means of the observation of the destruction of the red blood cells by a microscope, the opacity of the central part of the crystalline lens and the enzymatic methods.
In the present study, the author employed the hematocrit value as the destruction index of red blood cells in the unfrozen and the freeze-thawed fish. The experimental results obtained by carp indicated that the changes in hematocrit values during the unfrozen and the frozen storage reflected well the destruction degrees of red blood cells. In the case of many species of commercial freeze-thawed fish, all their hematocrit values closed upon 0%. Since the microscopic observation of the destruction of the red blood cells is trouble some, the author insists that the determination of hematocrit value is the simplest to differentiate the freeze-thawed fish from fresh one.抄録全体を表示PDF形式でダウンロード (649K) -
佐藤 実, 菅野 信弘, 佐藤 美和1985 年 51 巻 8 号 p. 1337-1339
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーIn the acidic amino acid fraction of the muscle extract of abalone Haliotis discus hannai, an unusual amino acid, which gave a yellow color with ninhydrin reagent and a blue color with isatin, was found by paper electrophoresis. It was isolated by ion exchange chromatography and preparative paper electrophoresis, Its chemical structure was reasonably resolved to be L-pyrrolidine-2, 4-dicarboxylic acid (I) by means of mass, NMR, ORD and IR spectrometries.抄録全体を表示PDF形式でダウンロード (190K) -
Mikio CHIBA, 菊池 武昭, 長島 裕二, 橋本 隆1985 年 51 巻 8 号 p. 1341-1347
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe 48h mortality of the Himedaka was examined in a solution containing 60μg/ml (LC50) permethrin and variable concentrations of mercuric chloride, HgCl2 (200-800μg/ml), or methyl mercuric chloride, MeHgCl (50-200μg/ml). The additive effect of these chemicals was proven by the increase in the fish mortality and the change in concentrations of chemicals accumulated in the fish. Concentrations permethrin accumulated in the fish decreased substantially, and concen-trations of mercury accumulated (total mercury, T-Hg) increased as the concentrations of HgCl2 test solution increased with the presence of 60μg/ml permethrin.
A similar additive effect was observed when the Himedaka were exposed stepwise to LC50 permethrin and mercury solutions for two successive 48h periods; more than 50% of the survived fish after the initial 48h exposure died during the second 48h exposure. In contrast, when the fish were exposed to the same chemical for successive two 48h periods, no further death was observed during the second exposure period, indicating the development of tolerance to the chemical during the initial 48h period.
Permethrin and mercury can be accumulated up to 8μg/g and more than 45μg/g, respectively, if these two are present individually. If both are present in the same solution, individual concentrations are lower than the above values and the proportions of the two chemicals vary depending on the exposure conditions.抄録全体を表示PDF形式でダウンロード (433K) -
眞岡 孝至, 松野 隆男1985 年 51 巻 8 号 p. 1349-1351
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe seventh naturally occurring tunaxanthin, tunaxanthin D was isolated from the integuments of marine fishes. Tunaxanthin D was identical with (3S, 6R, 3'R, 6'S)-ε, ε-carotene-3, 3'-diol. This is the first report of the isolation of the naturally occurring tunaxanthin possessing 6R, 6'S-configura-tion.抄録全体を表示PDF形式でダウンロード (192K) -
槌本 六良, 宇津木 照洋, 三嶋 敏雄, 北島 俊一, 矢田 殖朗, 高木 保昌, 兼原 壽生, 久野 俊行, 千田 哲資, 保田 正人1985 年 51 巻 8 号 p. 1353-1361
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーFreshness of fish just after catching under various operating conditions by trawlers in the tropical waters was studied, taking opportunity of experimental trawlers by T/V Nagasaki-maru in the Andaman Sea in November 1981 and in the Gulf of Thailand in October 1982. The bottom water temperatures in the fishing grounds were about 28.5°C in both the seas.
The mean K values of fish just after hauling up of the net were rather low; 5.6% for fish by one-hour of towing, 9.6% for fish by two-hours of towing, and 7.2% for fish by three-hours of towing. The mean K value for fish by one-hour of towing was significantly lower than those by two- and three-hours of towing, and this was also true for the same fish species caught in the same fishing ground. The distribution of K values was found to be exponential, the fish with K value of less than 10% accounting for 79.8% in one-hour of towing, 65.0% in two-hours of towing, and 80.0% in three-hours of towing.
The mean K values of the fish caught in the Gulf of Thailand were significantly higher than those in the Andaman Sea. A higher occurrence of trash fish both in catch per hour and in percentage of total in the former area is considered to explain this partially.
A negative correlation was found between the K values just after catching and the body weights of fishes, while between the K values and the increasing rates of K values we found a positive correlation.抄録全体を表示PDF形式でダウンロード (658K) -
槌本 六良, 三嶋 敏雄, 宇津木 照洋, 北島 俊一, 矢田 殖朗, 保田 正人1985 年 51 巻 8 号 p. 1363-1369
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーThe separation and the quantitative analysis of ATP, ADP, AMP, IMP, inosine and hypoxanthine in the fish muscle were made using the high-performance liquid chromatography with the reversed-phase column.
All the ATP related compounds as well as most of the other nucleic acid related compound could be eluted under the phosphate buffer (0.05M-KH2PO4: 0.05M-K2HPO4=1:1) at pH6.78 with the reasonable resolution and the retention time. For the ATP related compounds in the extract of fish muscle, the recovery and the reproducibility by this method were satisfactory and the values obtained agreed with those prepared by the general purpose method of ion exchange chromatography.抄録全体を表示PDF形式でダウンロード (508K) -
斉藤 俊郎, 野口 玉雄, 原田 輝雄, 村田 修, 阿部 宗明, 橋本 周久1985 年 51 巻 8 号 p. 1371
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (108K) -
野口 玉雄, 丸山 純一, 池田 武彦, 福代 康夫, 橋本 周久1985 年 51 巻 8 号 p. 1373
発行日: 1985/08/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (937K)
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