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Volume 10 (1941 - 194･･･
- Issue 6 Pages 249-
- Issue 5 Pages 197-
- Issue 4 Pages 153-
- Issue 3 Pages 109-
- Issue 2 Pages 65-
- Issue 1 Pages 1-
Volume 10, Issue 2
Displaying 1-10 of 10 articles from this issue
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Husao SIMIZU, Torazirô SAITÔ1941 Volume 10 Issue 2 Pages 65-68
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSWith the scales taken from 13026 specimens, out of the catch in 1940, the composition of the shoals of Oncorhynchus keta (WALB.), Caught in Kamchatka was studied. Fishes were classified according to the breadth of the first and second winter rings on the scale. Age determination showed how the composition of each year class fishes varies with respect to the 4 fold categories: -A1A2, A1B2, B1B2, and B1A2, where A means narrow, B, broad winter ring, while suffix 1 means the first, 2, the second winter ring.View full abstractDownload PDF (996K) -
Kaoru OGURA, Kinzirô YAMADA1941 Volume 10 Issue 2 Pages 69-75
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSWith the increase of body lexlgth of the fish, rather clearly keeps pace the weight of the liver but not so remarkably the concentration of vitamin A. Hand in hand with the increase of body length, the augmentation of the liver oil content occurs, although it was not definitely found in Oncorhynchus gorbuscha which is poor in the oil content. No relation was found to exist between the weight of the liver and the liver oil content. HIGASI'S, and SCHMIDT-NIELSEN'S formula appears to fit the relation between the the liver oil and vitamin A contents.View full abstractDownload PDF (261K) -
Takeo ÔYA, Noriyuki SASAKI1941 Volume 10 Issue 2 Pages 76-78
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSThe best result was obtained in fat extraction with benzine so far as the muscle moisture remains within a range of 8-9%. Next to this come the extractions when the moisture fluctuates between two ranges 0-8% and 9-15%. The Solubility of the muscle protein was not affected by temperature in fat extraction with 0.1N NaOH solution. But higher temperatures remarkably decrease solubility in the same procedure with 7% NaCI solution, when tested at temperature 20-70°C.View full abstractDownload PDF (202K) -
Kikuo TAKANO1941 Volume 10 Issue 2 Pages 79-82
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSIf the skin of fish is boiled with water, collagen in it dissolves, becoming water-soluble matter. In the present study, effects of heating and of liming of the skin upon the amount of nitrogen dissolved were experimented with the conclusions, that the higher the temperature and the longer the time in heating, the more nitrogen is dissloved, and that liming before heating maltiplies the nitrogen dissolution; the more so, the higher the concentration of the lime used, and the longer the immersion of the skin in the lime.View full abstractDownload PDF (198K) -
Yarokurô YAMAMURA1941 Volume 10 Issue 2 Pages 83-85
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSBy means of Wheatstone bridge, electric resistance of fish muscles was determined for both direct and 1000 cycled alternate currents. Both specific and contact resistances were calculated graphically as shown in Figs. 3 and 4. Figs. 1 and 2 show the method adopted, while the results are given in Tables 1 to 5.View full abstractDownload PDF (172K) -
Ikio KANEKO, Yasuyuki KAZIWARA1941 Volume 10 Issue 2 Pages 86-88
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSLong-fined Albacore and mackerel, with head cut off, ware cooked as the materials for oiled cans, and were laid in air to cool at room temperature and at varied relative humidity. Temperature-time relation for the muscle, plotted semilogariLhmically, showed that the rate of cooling was the greater, the lower the humidity.View full abstractDownload PDF (165K) -
Ikio KANEKO1941 Volume 10 Issue 2 Pages 89-90
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSRelations between the amount, of coal consumed daily and number of packs of salmon cans produced at Uka Cannery were formulated both for 1 lb flat, and 1/2 lb flat cans. Some-what different relations exist between the total amount of coals and total production during whole fishing season, if several canneries in Kamcbatka were taken into consideration.View full abstractDownload PDF (107K) -
Ikio KANEEO, Zirô IKENAGA1941 Volume 10 Issue 2 Pages 91-92
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSEquilibrium sorption water content of cellophane and parchment-paper, used to wrap frozen fish Q, was proved to obey the law, Q=k(r/1-r)n, where k and n are constants, when stored in air at.0°C, having relative humidity of r>1.00View full abstractDownload PDF (106K) -
Teiiti SUGAWARA, Ikio KANEKO, Zirô IKENAGA, Yasuyuki KAZIWARA1941 Volume 10 Issue 2 Pages 93-96
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSAbout 100 specimens of red salmons, which were landed at Kasiwabara, were taken daily from June 4 to August 11, 1939, and were classified according to sex, body-length and body-weight. Percentage frequencies of each length-weight class were averaged for 4 successive periods, into which the whole period mentioned above was divided, and were compared with the corresponding percentage frequencies averaged for whole period. The results of χ-square tests show that statistically significant differences are exist in the composition of the shoals, among different periods.View full abstractDownload PDF (199K) -
Seiji KOKUBO, Teruyosi KAWAMURA1941 Volume 10 Issue 2 Pages 97-108
Published: July 25, 1941
Released on J-STAGE: February 29, 2008
JOURNAL FREE ACCESSSince previous studies (KOKUBO & KAWAMURA 1940a, 1940b, 1940c, 1941) limnological observations in Lake Zyuniko have been continued from August to March (1940-1941). In these observations attention has been directed to the seasonal change of the physical and chemical conditions of the lakes, taking into account the former observations. The results show that the temperatures of these lakes subject to the routine change of general cases except the hypolimnion whose temperature is influenced by the underground water. The hypolimnion of these lakes manifests such particular changes as dichotomous or poikilothermous stratification, yet the general tendency submit to the seasonal change that its temperature decreases from autumn to winter.
As to the stratification of dissolved oxygen it was found that the “O2-Sprungschicht” which ascended from below by August again sinks with the partial circulation of autumn, situating deeper than 15 meters or thereabout. Probably “02-Sprungschicht” m ?? ght exist still closer to the bottom just after the autumnal circulation, hinting that it is developed from socalled microstratification. The thickness of anerobic layer attained to 10 meters in August in Lake Otikuti. The highest percentage of saturation was 140•2% of Lake Koikuti in August in 2 meter layer.View full abstractDownload PDF (563K)
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