巻号一覧
29 巻, 2 号
選択された号の論文の16件中1～16を表示しています
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下層における冬ビンナガ魚群集団の回遊について井上 元男1963 年 29 巻 2 号 p. 99-107
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーThe present discussion dovers important problems of the practice of fisheries, especially in searching the tunas at a deep layer for the long-line operation during the winter season.
From available data of long-line fishing the author examined the migrations of albacore community in the waters adjacent to Japan in 1954-55.
The results obtained are summarized as follows;
(1) Distributions of the albacore community based on the iso-hooked-rate-line during the winter period can be regarded as “fish ranges” because of their resembrance to “mountain ranges” (Fig. 1 and 3).
(2) From the figures of the distributions of albacore we know the number of the shoals or the communities, the density, the extent of distributions, the direction of movement of albacore on the southward trip in the winter-spring seasons (Fig. 3).
(3) Sometimes there are 18 or 19 shoals migrating in the waters adjacent to Japan, moving southward in parallels (Table 1, Fig. 3).
(4) Some shoals migrate westward beyond the Izu Islands, while the others migrate eastward away from the Islands (Fig. 3).抄録全体を表示PDF形式でダウンロード (539K) -
磯建網漁業の解析と総括塩川 司1963 年 29 巻 2 号 p. 108-113
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーBasing the results stated in the previous papers and some information on the spiny lobster, Panulirus japonicus, the bottom gill-net fishery was analyzed from such aspects as amount of catch, fishing gear and ground, fish populations and fishery regulations. The conclusions obtained from this study are summarized as follows:
1) The annual catch of fishes except the spiny lobster has not shown a tendency to decline in this region.
2) As compared with the other kind of gill-net fisheries, the catch per day of “kashi-ami” type gill-net is very low, and yet the daily fluctuation is large throughout a year.
3) “Kashi-ami” (a bottom gill-net) is operated almost unselectively in striking fishes, and “takasu-ami”, modified from a “kashi-ami”, selectively for fish species more or less.
4) “Takasu-ami” (high trammel net) catches additional fish populations to those caught by “kashi-ami” (trammel net).
5) The coastal fishing grounds are divided into near, middle and distant waters. The distant water is the most important and productive among the fishing grounds of the gill-net fishery.
6) Amount of the catch is relative mainly to the demersal fishes which migrate to the ground for spawning in spring and summer.
7) The coastal gill-net fishery has no need of any regulation of the fishing power for the conservation of fish resources, except the enforcing regulations for the spiny lobster.抄録全体を表示PDF形式でダウンロード (316K) -
指標プランクトンについて榎本 義正1963 年 29 巻 2 号 p. 114-117
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーCharacteristic occurrences of some plankton species were presented in the Yellow and the East China Seas in addition to the dominant zooplankton in the preceding paper12); Pontocrates altamarinus in the Yellow Sea, Acetes chinensis and Labidocera euchaeta in the waters from the Yantsu River, Trichodesmium erythraeum and Euchaeta marina in the waters from the Yantsu River and the waters where the Kuroshio Current takes the influence, and Sapla fusiformis and Sagitta enflata and so on in the Kuroshio Current.抄録全体を表示PDF形式でダウンロード (204K) -
富士 亮1963 年 29 巻 2 号 p. 118-126
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリー1. The growth rate of the Japanese common littoral sea urchin, Hemicentrotus pulcherrimus (A. AGASSIZ) was studied in the vicinity of the Misaki Marine Biological Station, Kanagawa-ken, Japan.
2. Estimation of its growth rate was made by the combined use of PETERSEN's size frequency analysis, the consecutive observation of the PETERSEN curves and the tagging method. Evaluation of the applicability or these three methods was discussed as applied to the growth rate of this species. The estimates calculated from these methods presented a satisfactory and close agreement.
3. It was found that H. pulcherrimus attains a size of 10mm. in test diameter in the first summer and the modes in the subsequent summers are 21mm. at 2 years, 28mm. at 3 years and 34mm. at 4 years.抄録全体を表示PDF形式でダウンロード (504K) -
落合 明, 尼岡 邦夫1963 年 29 巻 2 号 p. 127-134
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーEighteen larvae and young of the flatfishes belonging to the subfamily Bothinae measuring 16 to 56mm. in total length were collected from tropical and subtropical areas of the Indo-Pacific Ocean including the southern coast of Japan during the period from March, 1960 to January, 1961. Examination of these collections has led us to the conclusion that they may be referred tentatively to the following three species and one genus: 1) Arnoglossus japonicus HUBBS (Fig. 1); 2) Crossorhombus valde-rostratus (ALCOCK) (Figs. 2-3); and 3) Bothus myriaster (TEMMINCK et SCHLEGEL). Moreover, a larval form was recognized as Bothus, but could not be assigned to either myriaster or pantherinus (RüPPELL) (Fig. 4). The metamorphosed postlarvae of Crossorhombus are here reported for the first time.
An analytical key for identifying the postlarval form of this group of fish occurring in the waters around Japan is tentatively presented mainly based on the counts of vertebrae and dorsal, anal and pectoral fin rays in numerous adult speciemens of twenty-four species, which are believed to be found in the same waters.抄録全体を表示PDF形式でダウンロード (1999K) -
松田 皎1963 年 29 巻 2 号 p. 135-138
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (181K) -
海水濃度・温度・乾燥等の影響尾形 英二1963 年 29 巻 2 号 p. 139-145
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーJapanese laver (Porphyra tenera KJELLMAN) growing high in the intertidal zone is continuously exposed to rather drastic changes in various physiological and ecological factors such as salinity, temperature, pH and dryness. The algal respiration as affected by those factors was investigated by manometric technique using 200mg each in fresh weight of the alga put in normal and condensed or diluted sea water in the vessel. Results obtained are the following:
1) Respiration increases when sea water is diluted to half strength, and decreases under extremely hypertonic and hypotonic conditions. But the trend varies depending on the temperature. Respiration steadily increases with rising temperature from 15° to 30°C irrespectively of the salt concentration. Elevation to 35°C depresses respiration unless kept under hypertonic condition.
2) The alga shows meaurable oxygen uptake even without water in the vessel when measured after drying for short period. Respiration recovers or increases rapidly when the alga is returned to water after prolonged drying.
3) Changes in pH (5.0-10.0) do not seriously affect the respiration.
4) Qo2 (μ/mg dry wt./hr.) in normal sea water is 1.58 at 25°C and 3.27 at 35°C. Respiratory quotient (R. Q.)is about 0.8, showing minor differences under different conditions.抄録全体を表示PDF形式でダウンロード (370K) -
自由減衰振動測定装置岸本 昭, 平田 貞夫1963 年 29 巻 2 号 p. 146-150
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (251K) -
凍結すり身のかまぼこ形成能におよぼす坐りの影響池内 常郎, 清水 亘1963 年 29 巻 2 号 p. 151-156
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリー1. Although setting phenomena of fish meats differ remarkably from species to species, all fish meats form rigid gels sooner or later.
2. The decreases of jelly-forming ability and solubility of protein in 0.6N NaCl aq. solution were regarded as indexes of setting.
3. It was found that the impossibility of the cold storage of brayed meat was mainly caused by setting, and that this phenomenon appeared at the initial stage of storage in most cases.
4. Sugar (saccharose) was an effective retarder of setting as pointed out previously by SIMIDU.抄録全体を表示PDF形式でダウンロード (347K) -
すり身の坐りにおよぼす砂糖その他の物質の影響池内 常郎, 清水 亘1963 年 29 巻 2 号 p. 157-160
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (244K) -
ATP感度測定によるブリの初期変化鈴木 たね子1963 年 29 巻 2 号 p. 161-167
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーThe previous work indicated that intrinsic viscosity of yellowtail or mackerel decreases so far as to 0.5-0.2 after the muscle has passed into rigor. As intrinsic viscosity is too low, however, a question has been left open whether or not the myosins fraction from yellowtail or mackerel at the in-rigor or post-rigor stage is consists of really actomyosin. Measurement of ATP sesitivity. In order to identify actomyosin, ATP sensitivity has been employed according to PORTZEHL et al. The ATP sensitivity is defined as (Zη-ZηATP/ZηATP)×100 where Zη and ZηATP are the viscosity number before and after addition of ATP, respectively. In the case of rabbit muscle the viscosity number has been reported to be independent of its concentration. However, as shown in the author's previous paper3), the viscosity number of fish actomyosin is greatly influenced by its concentration. Then, it is proposed that both Zη and ZηATP may be expressed by extrapolating these values into zero of the protein concentration. Namely, ATP sensitivity=(Zηc→o-ZηATPc→o/ZηATPc→o)×100
This sample fish were killed by beheading; a portion of muscle was taken and subjected to experiments immediately after death, while other portions of the muscle were taken after storing them for 24 and 70-90 hrs. at ca. 3°C. In yellowtail, ATP sensitivity of myosins fraction was found to increase in the following order with respect to the post mortem phase: pre-rigor<in-rigor ?? post-rigor (Table 1). although the myosins fraction from the in-rigor and post-rigor yellowtails displays very low intrinsic viscosity, the fraction appears to consist mainly of actomyosin.抄録全体を表示PDF形式でダウンロード (400K) -
新井 健一, 斎藤 恒行1963 年 29 巻 2 号 p. 168-173
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーThe assay method is based on the separation of adenine (A), hypoxanthine (H), adenosine (AR), inosine (HR), and nucleotides by using the ion exchange resins, DIA-ION SA-100 (formate type) and Dowex 1×2 (chloride type). The former is used for adsorption of nucleotides and the latter for adenine, hypoxanthine, adenosine and inosine from Dowex 1X2 quantitatively owing to their differences in the rate of elution by using the solvent system, NH4OH-HCI-Na2B4O7, in which A is 0.1 N NH4OH-0.035 N HCl-0.005 N Na2B4O7, B is 0.001 N HCl-0.0002 N Na2B4O7, in the stepwise elution system. The results are shown in Figs. 5 and 6.抄録全体を表示PDF形式でダウンロード (346K) -
両成分の単離精製および二・三の性質について山口 勝巳, 河内山 義夫, 橋本 周久, 松浦 文雄1963 年 29 巻 2 号 p. 174-179
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーThe hemoglobin (Hb) of loach, Misgurnus anguillicaudatus, was previously found1) to consist of two components, which were named F (fast) and S (slow) in accordance with their electrophoretic mobilities. Both components were isolated from each other by starch block electrophoresis and crystallized from concentrated ammonium sulfate solutions (Fig. 1).
Some properties of both components were compared to each other. Molecular weights of components F and S were determined to be 74, 000 and 67, 000, respectively, by sedimentation and diffusion method (Table 1). No significant differences were observed between absorption spectrum of both components in the visible region as well as in the near-ultraviolet region (Tables 2 and 3). Comparing with that of horse or tuna Hb, however, the extinction coefficients of SORET bands of both components were characteristically large in met form (Table 2).
Both components were electrophoretically homogeneous over all the pH range covered. From the pH vs. mobility curves, isoelectric points of components F and S were found to be at pH's 5.0 and 7.6, respectively (Fig. 2). Such a low isoelectric point of component F has never been reported among vertebrate Hb's11).
The solubilities in concentrated phosphate buffer (pH 6.6) of both components were almost the same (Fig. 3). The heat stabilities of the two components were both considerable, component S in cyanmet form being more stable than any of fish Hb's hitherto investigated7) (Fig. 4). As to alkali resistibility, component F was less than S, the difference being wider at higher pH (Fig. 5).抄録全体を表示PDF形式でダウンロード (1160K) -
酸素解離曲線について山口 勝巳, 河内山 義夫, 橋本 周久, 松浦 文雄1963 年 29 巻 2 号 p. 180-188
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーOxygen equilibrium of loach hemolyzate and, components F and S which were separated from each other by starch block electrophoresis, was investigated by the spectrophotometric method2).
Results were as follows: As shown in Figs. 1-3, the oxygen pressure of half saturation (P50) at physiological pH was below 2.0mm. Hg for the three samples. Thus, loach hemoglobin (Hb) may be emphasized to have the extraordinarily strong affinity to oxygen, which might enable this fish the peculiar intestinal respiration12). n Values in the HILL'S equation of hemolyzate and component F were not so specific. On the other hand, component S showed the considerably low value of ca. 1.2 over all the pH range covered (pH 6.1-7.7).
The BOHR effect was remarkably different between both components, F showing an apparent BOHR effect while S not at all. Considering also the fact that myoglobin was not found out in any tissue of this fish, this may suggest the possession of some myoglobin-like functions of component S in the blood (Figs. 1 and 2). In relation to the BOHR effect, the number of free sulfhydryl groups was determined of both components by the amperometric titration method4). Results showed that component F has ca. 8 free sulfhydryl groups per molecule but S has none, roughly corresponding with the RIGG'S hypothesis5).
Effect of temperature on the oxygen dissociation was found to be slighter for component S than for F (Figs. 5 and 6). The reaction heats in oxygenation of the hemolyzate and both components calculated from the VAN'T HOFF'S equation were comparable to those of mammalian Hb's6) (Fig. 8). Effect of phosphate buffer concentration on oxygen dissociation was also slighter for component S (Figs. 9 and 10).
The oxygen dissociation curves of hemolyzate largely differed from what was expected from the results of separated components (see Fig. 12). The magnitude of BOHR effect of the hemolyzate was unexpectedly large, just double that of component F, suggesting the occurrence of a strong interaction in the hemolyzate between both Hb components (Figs. 3 and 4). The temperature effect on the hemolyzate was more remarkable than on each separated component, while the effect of phosphate buffer concentration was less (Figs. 5-7 and 9-11). These facts also indicate the occurrence of the interaction mentioned above.
If such an interaction actually exists in the blood of living loach, the physiological functions as supposed above for each component should be corrected. However, it is not yet clear whether it is true or not, because, firstly, Hb is much more concentrated in blood cells than in the hemolyzate solution used in this study and secondly, coexistence of both components in the same blood cells is not confirmed so far.抄録全体を表示PDF形式でダウンロード (303K) -
村田 喜一1963 年 29 巻 2 号 p. 189-197
発行日: 1963/02/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (521K) -
1963 年 29 巻 2 号 p. e1
発行日: 1963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 (46K)
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