巻号一覧
50 巻, 3 号
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郭 慶老, 田中 昌一1984 年 50 巻 3 号 p. 391-396
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe deep-water fishing grounds around New Zealand are divided into EAST, NORTHEWEST and SOUTH regions. Seasonal change of distribution, relationship between depth and length distribution, diel vertical migration are discussed in this paper. In the EAST region, the fish move from Chatham Rise and Chatham Island to Canterbury Bight from spring through autumn, and move to spawn in the areas between Mernoo Bank and Chatham Rise in winter. In the NORTHWEST region, the fish feed around North Island from spring and Chatham Rise in winter. In the spawn in the western coast of South Island in winter. In the SOUTH region, the fish feed in areas between Auckland Island and Campbell Island in spring and summer, migrate to the continental slope in autumn, and spawn around Stewart Island and Puysegur Bank in winter. Fish of various sizes live in the shallow areas of the continental slope, but in the deeper places, only the large ones can be found. Fish spend the day at depths near the bottom of the continental slope and migrate to upper layers during the night. This is considered to be a kind of feeding migration connected with the diel vertical migration of the Myctophids.抄録全体を表示PDF形式でダウンロード (439K) -
郭 慶老, 田中 昌一1984 年 50 巻 3 号 p. 397-402
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe spawning season of hoki in the EAST, the NORTHWEST and the SOUTH regions are estimated to be July-September, June-September and July-September respectively. The biological minimum size of females seems to be larger than that of males, and the biological minimum size of the NORTHWEST or the SOUTH region seems to be larger than that of the EAST region. There are more females when the total length is over 62cm in the EAST region, and over 92cm in the NORTHWEST or the SOUTH region. This may be due to the longer life span of the females. The spawning grounds are estimated to be the southwetern area of Mernoo Bank and Chatham Rise in the EAST region, the western offshore of South Island in the NORTHWEST region, the southeastern offshore of South Island and Puysegur Bank in the SOUTH region. The depth of spawning is assumed to be 400-700m, 325-826m and 300-500m in the EAST, the NORTHWEST and the SOUTH region respectively.抄録全体を表示PDF形式でダウンロード (347K) -
坂井 勝信1984 年 50 巻 3 号 p. 403-408
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーPrelimienary observaitions of the occurrence of cytotoxic cells was performed using the peripheral lymphocytes of juvenile rainbow trout Salmo gairdneri immunized BF-2 cells (a lined cell culture esablished from bluegill Lopomis macrochirus)intraperitoneally. Circulating lymtion, were inoculated into BF-2 and RTG-2 (a lined cell culture established from rainbow trout)cell cultures in tissus culture flasks. Cytotoxic effects of lymphocytes were qualitatively observed under phase-contrast microscopy after incubation at 15°C fot 1 day. While no cytotoxic effect of separated lymphocytes on RTG-2 cells was produced, the lymphocytes on day 5, 10 and 15 prior to immunzation revealed cytotoxic activity exclusively against BF-2 cells. In particular the lymphocytes on day 10 represented strong activity. The results suggested the occurrence of cytotoxic effector lymphocytes in response to hererologous antigenic cells in immunized rainbow trout.抄録全体を表示PDF形式でダウンロード (596K) -
渡辺 良朗1984 年 50 巻 3 号 p. 409-416
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe process of ingestion and intracellular digestion of protein molecules by the rectal epithelium cells in larvae of a freshwater cottid fish Cottus nozawae was observed ultrastructurally using horseradish peroxidase (HRP) as a marker protein. Orally administered HRP adhered to the luminal surface of the intermicrovillous plasma membrane of the cell. The membrane loaded with HRP molecules invaginated and was pinched off forming small pinocytotic vesicles. Ingested HRP was transported toward the nucleus by migration of the vesicles. The vesicles grew into large supranuclear vacuoles through repeated fusions thus concertrating the internal HRP. HRP was then accumulated as large homogenous masses in the vacuoles. At this stage, small primary lysosomal bodies came to fuse with the supranuclear vaculoes. and digestion of the HRP masses began form the periphery. With the progress of digestion, a single large mass of HRP in the supranuclear vaculoe was divided into several small bodies, each of which became bounded by a menbrane while its enzymatic activity decreased. Vesicles and vacuoles finally disappeared from the supranuclear area of the cell. No release of HRP into the interellular spaces or basal lamina was obseved. The overall process indicated nutritional signficance of the rectal epithelium cells in protein digestion in the larval stage.抄録全体を表示PDF形式でダウンロード (1345K) -
渡辺 尚彦, 内田 純一1984 年 50 巻 3 号 p. 417-423
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThere has been no publication on the energy analysis of catching fish for fish paste products. This paper reports an estimation of direct and indirect energy input per kilogram of catch of these fishes, by use of the census of fisheries economics. It was found that the energy input per weight of catch in the fishing of Alaska pollack (distant trawl in North Pacific Ocean) was nearly constant at the level of about 5, 000 kcal/kg from 1967 to 1977. But it increased greatly in the year of 1978. It reached 20, 000 kcal/kg in 1980. On the other hand, the energy intensity in the fishing of croaker and others (trawl in East China Sea) has been gradually increasing year by year. It was 8, 000 kcal/kg in 1967 and 18, 000 kcal/kg in 1980. It was also found that 80-90% of the total energy was consumed as fuel oil by fishing boat in both cases.抄録全体を表示PDF形式でダウンロード (569K) -
松谷 武成, 野村 正1984 年 50 巻 3 号 p. 425-430
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe localizeation of monoamines in the central nervous system and gonad of the scallop Patin-opecten yessoensis was studied by means of the histochemical fluorescence technique. Green fluorescent cells which presumably contained catecholamines were detected in the cotices of both the anterior lobe of cerebral ganglion and the lateral lobe of visceral ganglion, whereas the cells of accessory ganglia had yelow fluorescence which suggested the presence of serotonin. The neuropil of the cerebral, pedal and visceral ganglia exhibited intense both green and yellow fluorescence. Of these three ganglia, yellow fluorescence was found most plentifully in the cerebral ganglion, and green fluorescence was predominant in the pedal and visceral ganglia. In the gonadal area, both green and yellow fluorescent fibers ran along the longitudinal axis of the gonoduct and the muscles which were found in and around the gonad. The neworks of green fluorescent varicose fibers occurred in the intestinal wall and along the epithelium around the gonad.
The present results on the localization of monoamines in the central nervous system and gonad, together with our previous experimental data, may support the idea that serotynin plays an important role in the mechanism of spawning in marine bivalves.抄録全体を表示PDF形式でダウンロード (1450K) -
田中 真, 吉水 守, 木村 喬久1984 年 50 巻 3 号 p. 431-437
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーOne and 3-month-old masu salmon Oncorhynchus masou, 1-month-old coho salmon O. kisutch and 2-month-old chum salmon O. keta were infected with Oncorhynchus masou virus (OMV) by immersion method. Moribund specimens were then examined histopathologically.
The kidney was found to be the principal target organ for the virus as judged by severity of histopathological changes found in the infected 1-month-old masu salmon. Necrosis of epithelial cells was also observed in the early moribund specimens while partial necrosis of the liver, spleen and pancreas was seen in later moribund specimens from this group.
Necrosis of the kidney haematopoietic tissue was observed in infected 3-month-old masu salmon. Hyperplasia of the haematopoietic cells was simultaneously observed with necrosis in later moribund specimens from this group. While the kidney was considered to be the early target organ for OMV, it gradually became resistant to OMV infection, For this reason, it was considered that the principal target organ changed from the kidney to the liver and marked histopathological changes were observed in the later stages. Foci of necrosis in the liver tended to become more severe with longer incubation period. Hepatocytes showing margination of chromatin were present. Cell degeneration in the spleen, pancreas, cardiac muscle and brain was also observed.
Histopathological changes observed in coho salmon and chum salmon were the same as those of masu salmon.抄録全体を表示PDF形式でダウンロード (1839K) -
木村 喬久, 吉水 守1984 年 50 巻 3 号 p. 439-442
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe majority of isolates of Aeromonas salmonicida, the causative organism of fish of urunculosis, from diseased fish are rough, that is auto-agglutinating. Therefore serological identifcation by the slide agglutination test may be diffcult to perform.
The application of a coagglutination test, for fhe serological identification of auto-agglutinate A. salmonicida, was studied using staphylococci specifically sensitized with an antibody against the acterium.
This proved to be a simple and rapid method for use in the laboratory and required no special apparatus.
The procedure for this method is summarizde as follows. 1. A. salmonicida, cultured in nutrient broth, is heated in boiling water for 30min. 2. The supernatant is collected after centrefugation at 4000rpm for 20min. This may be omitted if auto-agglutination is recognized at the bottom of the culture tube. 3. One drop of the supernatant and one drop of anti-A. salmonicida antibody sensitized stapphylococci suspension are mixed on a glass slide and the slide is examined after 30min.抄録全体を表示PDF形式でダウンロード (1321K) -
兼広 春之, 鈴木 誠1984 年 50 巻 3 号 p. 443-449
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe fatigue properties of tuna branch lines (polyester and nylon) subjected to cyclic loading were investigated with various load amplitude. The maximum load imposed in each cycle was kept at 80% of their breaking load in all cases, and the cyclic load amplitude were varied in the range of 5-80% load. The number of cycles to failure and some mechanical properties were measured, and the sample was subsequently examined in the scanning electron micrograph (SEM).
It was observed that the fatigue life of the cord was remarkably influenced by the magnitude of the cyclic load amplitude. In the range of large load amplitude, fatigue breaks were seen to occur at very low cycles, whereas no breaks were obtained within 104 cycles in the range of small amplitude. SEM studies showed that the larger the cyclic load amplitude, the more the damage to the fiber.It was suggested that fatigue break of the cord was caused by the damage of the fiberdue to the mutual abrasion between each strand. Furthermore, it was shown that there was a close relation between cyclic load amplitude and strain amplitude in each cycle. It was recognized that the elongational properties of the cord against cyclic load affected its fatigue behaviour to a great extent.抄録全体を表示PDF形式でダウンロード (1980K) -
K.S. CHUNG, Kirk STRAWN1984 年 50 巻 3 号 p. 451-456
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe common estuarine crustaceans (Palaemonetes pugio, P. vulgaris, Penaeus setiferus, P. aztecus, and Callinectes sapidus), collected in the intake canal of the P. H. Robinson Generating Station, Bacliff, Texas, were tested for 180 minutes at various discharge canal temperatures during June 1974 through September 1975 to determine if they could survive passage through a discharge cooling system.
Three-h LD50 temperatures were singnifcantly higher, throughout the year, than the temperatures in the discharge canal downstream from the coloing towers, indicating that crustaceans should survive passage to Galveston Bay. However, they have survival problems during June-September in the discharge canal above the cooling towers.抄録全体を表示PDF形式でダウンロード (469K) -
丸山 俊朗, 半沢 昌彦, 森 隆, 吉田 多摩夫1984 年 50 巻 3 号 p. 457-463
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーRemoval of Cells of Olisthodiscus sp. using alumining sulfate was studied by determining the solubility of Al in seawater under various pH conditions, and examining the direct application of aluminium sulfate to the cell suspension in a jar tester.
The solubility of the Al desreased from pH 4.5. The minimum and maximum solubility was at pH 6.3 and pH 8.5 respectively. Above pH 8.5, solubility decreased. A pH buffer. action appeared when pH was 4.5-5.0, 8.5 and 10.
The aluminium sulfate requirement and pH conditions for a 100% removal of 2×104 cells/ml were 50mg/l (4mg of A1/l) at the most and pH < 5.8 and pH > 9.5, respectively. These pH conditions were dependent on aluminium sulgate content. When 6.5 < pH < 8.5, only 10-30% rate of removal was obtained.
From these results, it was suggested that the cell removal mechanism was mainiy due to disruption of cells followed by effective coagulation due to highly positive charged aluminium hydroxide when pH < 5.8, and positive charged magnesium hydroxide when pH < 9.5. The pH change alone or coprecipotation with aluminium hydroxide may not play any important role in the removal mechanism of the cells.抄録全体を表示PDF形式でダウンロード (562K) -
伏谷 伸宏, 橋本 周久1984 年 50 巻 3 号 p. 465-469
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーTwo cases of human intoxication resulting from consumption of red marine algae Gracilaria verrucosa (Japanes name, ogonori) and G. chorda (tsurushiramo) have recently occurred in Japan. Large amounts of inorganic salts present in these seaweeds has been suggested to be responsible for the poisoning. We however found that the extracts prepared from these algae which had been steeped in freshwater evoked severe diarrhea in mice; the main symptom of human victims. Two active principles have been isolated pure from G. verrucosa that was soaked in distilled water for20h. The principal compound was identified to be prostaglandin E2 by spectral data, chemical transformation and direct comparison with authentic specimens, while the less active substance to be prostaglandin A2. Responsibility of the prostaglandins, particularly PGE2, for the “ ogonori ” poisoning has been suggested. It was also proposed that an inhibitor of prostaglandin synthesis is present in the algae of the genus Gracilaria.抄録全体を表示PDF形式でダウンロード (1532K) -
Masayoshi OGAWA, Esmerino de Oliveira MAGALHAES-NETO, Olivarod AGUIAR- ...1984 年 50 巻 3 号 p. 471-475
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe incidence of black discoloration was verified in the integumentary tissues of tails of spiny lobster Panulirus laevicauda (LATREILLE), collected at a local plant and a retail shop.
As already indicated in the previous work, the relationship beween the stages of molting cycle and melanosis is statistically confirmed, and furthemore, sex has also been found to be differentially affected, females being more prone to discoloration than males. All lobsters in these samples were found to be injured and to be in the stages C and D.
Appearances of black discoloration in the integumentary tissue were observed histologically on the epidermis in stage C and on the epicuticle in stage D, respectively, and being identified as melanin.抄録全体を表示PDF形式でダウンロード (1214K) -
中村 孝1984 年 50 巻 3 号 p. 477-479
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーOccurrence and discoloration property of red pigment-forming substances (RPSs) produced during autoxidation of polyenoic acids were investigated. Autoxidezed lipids (methy1 linolenate, methyl arachidonate, linseed oil and tuna liver oil) were separated on Sephadex LH-20 with CHCl3/MeOH (1/1, v/v), and the pooled RPS-fractions were further separated by TLC. Two to four or more than four spors on the TLC plate turned into reddish-color by spraying with α-amino acids, but not by spraying with aliphatic amines, ammonium chloride, and purine and pyrimidine bases in neutral solutions. Proline and hydroxyproline developed a golden yellow color immediately.
The purified RPS derived from linolenate had an absorption maximum at 226-227 nm in EtOH and in MeOH/water (2/1, v/v), and 241 nm inchloroform. By the reaction with amino acids, the absorption at λmax 226-227 nm decreased with the increase taking place at λmax 510-520 nm which was attributed to the formation of red pigment.抄録全体を表示PDF形式でダウンロード (241K) -
木村 健一1984 年 50 巻 3 号 p. 481-487
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーAccumulation and retention of 137Cs by the common gogy, Acanthogobius flavimanus from environmental water and were and food were investigated in order to obtain quantitative information on the food chain transfer of the nuclide in coastal sea enveronment.
It was found that the accumulation of 137Cs by the fish from water and food showed a gradual increasing tendency during the experimental period and required long period to reach an equilibrium level.
Using a single exponential model, it was estimated that the accumulation of 137Cs by the fish required more than 90 days to reache equilibrium state.
From the experimental results, it was suggested that the relative contribution of food in the accumulation of 137Cs by the fish was comparatively higher in comparison with direct absorption.抄録全体を表示PDF形式でダウンロード (535K) -
坂田 泰造, 宇野 勝利, 柿本 大壱1984 年 50 巻 3 号 p. 489-493
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーThe generic composition of intestinal aerobic microflora of Tilapia (Sarotherodon niloticus) were examined in fish obtained from two different locations. Vibrio, Aeromonas and Pseudomonas were identifide as the dominant genera in fish intestine according to the identification scheme of SHEWAN et al. Vibrio isolates were differentiated from Aeromonas isolates on the basis of sensitivty to 0/129, no growth on Rimler-Shorts medium, negative result to sucrose-fermentation and starch-hydrolysis test. Variations in the occurrence of Vibrio and Aeromonas species were observed at different times of the year. These patterns differed to some extent between the fishes from the respective sites.抄録全体を表示PDF形式でダウンロード (394K) -
渡辺 武, 荒川 敏久, 北島 力, 藤田 矢郎1984 年 50 巻 3 号 p. 495-501
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーA feeding experiment was conducted to ensure a relationship between quality of the feed and spawning or quality of eggs produced by feeding red sea bream broodstock with various diets with different nutritional quality.
In the broodstock fed on the control white fish meal diet the average amount of eggs produced during the experimental period of about 2 months was 100.5×104 eggs per fish, and 80.9% of these eggs were buoyant. In the group fed on the low-protein diet without supplemental phosphorus these values were lower than those in the control. The total amount of eggs produced by female fish given the EFA-deficient diet was comparable to that in the control, but proportion of buoyant eggs was the lowest, more than 75% of eggs produced were deposited. Both values were highest in the group receiving the diet containing cuttlefish meal as a protein source, and moreover these eggs were mostly normal and showed a high rate of hatching, leading to a high productivity of viable larvae available as fish seed. The female broodstock receiving respectively the lowprotein, the phosphorus-deficient and the EFA-deficient diets produced eggs significantly low in hatchability and in addition most of the hatched larvae showed deformity in the body and number or position of oil globules in egg yolk.
Thus the present results have demonstrated that the reproduction of red sea bream is greatly affected by the nutritional quality of broodstock diets and that cuttlefish meal is superior to white fish meal as a protein source in diets for red sea bream broodstock.抄録全体を表示PDF形式でダウンロード (617K) -
渡辺 武, 大橋 繁, 伊藤 暁, 北島 力, 藤田 矢郎1984 年 50 巻 3 号 p. 503-515
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーA study was conducted to obtain some basic data necessary for biochemical evaluation of egg quality by investigating a relationship between composition of diets for broodstock and chemical components of eggs produced. Both broodstock and eggs produced by broodstock, which had been fed on various diets with different nutritional quality for more than 5 months, were analysed for fatty acids, minerals, and proximate composition.
There was no marked difference in proximate composition due to the difference of the nutritional quality of diets in both male and female muscles and livers except for the male broodstock fed on either the low-protein or the EFA-deficient diet where the protein content decreased and the lipid content inreased. The protein and lipid contents were higher and the water content was lower in the ovary from broodstock given the cuttlefish meal diet. Mineral composition in both broodstock tissues and eggs showed no difference, in general, even in the phosphorus content of vertebrae and eggs from the broodstock given the phosphorus-deficient diet. In the eggs produduced by the broodstock fed on the low-protein diet a slightly high moisture content and a low protein content were observed. The fatty acids in eggs were greatly affected by dietary fatty acids supplied to broodstock. The proportion of ω3 HUFA and was high in the eggs of the broodstock given the diet containing a high level of ω3 HUFA and was low in the eggs from the EFA-deficient fish, the percentage of 18:2ω6 being higher in the latter eggs due to dietary 18:2ω6 in corn oil, although a relationship between quality of eggs and their fatty acid distribution was not evident in this experiment.抄録全体を表示PDF形式でダウンロード (1051K) -
野口 玉雄, 長島 裕二, 丸山 純一, 上村 俊一, 橋本 周久1984 年 50 巻 3 号 p. 517-520
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーStrikingly noticeable PSP-infested specimens of the scallp Patinopecten yessoensis were examined for anatomical distribution of the toxicity. The unfrozen adductor muscle showed toxicity scores as low as 3-13 MU/g, even when the shellfish was toxified up to unprecedented levels of 6, 500-11, 000 MU/g difestive gland. With the specimens of toxicity levels ranging from 1, 000-2, 900 MU/g digestive gland, the adductor muscle, either washed or non-washed, were nontoxic.
The latter scallops showed a toxicity score less than 2 MU/g non-washed adductor muscle, when kept frozen for five months and thawed quickly by heating at 100°C for 5 min, or thawed less quicky by leaving at room temperature (17-21°C) for 4 h. Their toxicity levels were 3-9 MU/g adductor muscle when thawed slowly by leaving at 5°C for 24 h.
On the other hand, the toxicity of adductor muscle was raised up to 54 MU/g, when the freezing-thawing of the whole shellfish was repeated three times, indicating the migration of toxin from one tissue to another.抄録全体を表示PDF形式でダウンロード (287K) -
松浦 基, 大泉 徹, 新井 健一1984 年 50 巻 3 号 p. 521-529
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーWhen carp myosin was kept at 27°C or 30°C in the presence of various concentreations of sorbitol or lactitol, myosin Ca-and EDTA-ATPases were inactivted in a single first order rate (kD) process whereas the inactivation of actin-activated myosin Mg-ATPase proceeded in two steps: an early fast decrease (kDf), followed by a slow decrease (kDs). The increase in the turbidity of myosin suspension also occurred in two steps with similar rates (k1 and k2) to those for inactivation of activacted myosin Mg-ATPase.
Plotting the logarithm of rate constant against the molarity of sugar, the linear relations were obtained for all indices employed. A slope of the graph of the logarithm of rate constant versus the molarity of sugar expressd the protective effect (E) of sugar against thermal denaturation of carp myosin.
Judged from the E values, it was strongly suggested that the presence of sugar during the heat-treatment effectively protected the denaturation of an enzymatic site of myosin molecule compared with that of thick filaments (self-assembly) of the same molecule. In addition, the effect of lactitol was nearly two-fold stronger than that of sorbitol for the denaturation of all biochemical properties studied.抄録全体を表示PDF形式でダウンロード (810K) -
北原 直1984 年 50 巻 3 号 p. 531-536
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーAs part of the historical study of carotenoids in the chum salmon, the behavior of carotenoids was investigated duing development.
The carotenoids which were stored in the eggs during the anadromous migration period, stayed in a constant quantitative (0.677-0.687mg/100g) and compostion ratio, with a 76-80% astaxabthin rate, until hatching. After hatching, the amount of carotenoids decreased and astaxanthin rate also decreased. In the post-larva stage when the yolk was absorbed, it was reduced to 24%. In the stage of the fry transferred to a river, it was reduced to 6%.
Most (80%) of the carotenoids of the pro-larva just after hatching were in the yolk. As the yolk was absorbed, they were gradually transorted to the embryo and stored in the skin of the larva after esterification. When the fry were transferred to a tiver, the carotenoids were not found in its muscle.
In the post-larva stage, antheraxanthin, ltein and salmooxanthin-like pigment appeared newly. The composition ration of those carotenoid increased with the growth of the fry.抄録全体を表示PDF形式でダウンロード (427K) -
浜田 盛承, 稲益 猷二1984 年 50 巻 3 号 p. 537-540
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーTemperature dependence of the viscoelastic behavior of Kamaboko to which starch was added was measured in the range of 10° to 85°C in order to investigate the relation starch to the network structure of Kamaboko. Kamaboko, made from the frozen Surimi of Alaska pollack using widely different amounts of starch, was subjected to a puncture test and measurements of shear storage modulus G' and loss tangent tan δ With increasing starch content, G' increased at all temperatures examined, and the transition zone shifted to the highter temperature side. But breaking strain obtained by the puncture test decreased with increasing starch content, indicaating the ineffectiveness of starch to enhance the breaking strength of Kamaboko. These reslts suggest that starch granules in Kamaboko act mainly as a water absorbent than as a reinforcing filler, and have no direct effect on reinforcing the network structure.抄録全体を表示PDF形式でダウンロード (355K) -
村上 昌弘, 水谷 祥彦, 山口 勝巳, 鴻巣 章二1984 年 50 巻 3 号 p. 541
発行日: 1984年
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) -
中川 孝之, 渡部 終五, 橋本 周久1984 年 50 巻 3 号 p. 543
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (1013K) -
手島 新一, 金沢 昭夫, 山田 一磨呂1984 年 50 巻 3 号 p. 545
発行日: 1984年
公開日: 2008/02/29
ジャーナル フリーSponges belonging to the family Axinellidae are unique in the respect that they contain A-nor sterols with 3β-hydroxymenthyl-A-nor-sterane groups. These sterols have not been encountered in other marine and terrestrial organisms. Previously, we have found a new A-nor sterol with a methylene group at C-24 in the sponge Hymeniactidon perlevis.1) This paper presents the occurrence of another new A-nor sterol with an ethylidene group (comp.X) (Fig. 1) in the sponge Acanthella crista-galli collected in Okinawa, Japan.抄録全体を表示PDF形式でダウンロード (105K)
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