Im Falle der isotropen Turbulenz ist es nach der WEIZSÄCKER-HEISENBERG'schen Theorie eine allbekannte Tatsache, dass das Spektrum der Turbulenz durch das Gesetz F (n)-n^-5/3 ausgedrückt wird. Diese Theorie beruht auf folgenden Prämissen, dass die Energie sich vom grössten Wirbel bis zum kleinsten überträgt und schliesslich in Wärmeenergie umgewandelt wird. Im Ozean bzw. der Atomosphäre hat man aber diese Übertragung anscheinend nicht richtig beobachtet, weil man die Energiequelle in den weitern Spektralgebieten zwischen den max. und min. Turbulenzkörpern vermutet. Der Verfasser versucht dieses Spektralgesetz im Ozeane festzustellen und findet, dass das Spektralgesetz, wenigstens in den mittlern Gebieten der Frequenzen, annälerungsweise annäherungsweise gleichförmig mit jenem und unverändert ist.

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The present author treated tentatively the relation between the wind speeds in the wind wave scale 3 and the surface water temperatures in an opean sea using the data of oceanographical observations taken at the Northern Fixed Points (39°N, 153°E) in the North Pacific Ocean in view of the foaming of sea water, and the following results were obtained:
(1) The general features of the frequency distribution of wind speeds in wind wave scale 3 were discussed.
(2) He defined a quantity R_θ, which is physically significant, in order to discriminate the degree of foaming in actual seas how often the white-caps happen, where θ represents the degree of surface water temperature. Using the calculated values of it from oceanographical data, he could ascertain that the higher the surface water temperature becomes, the lower the degree of foaming of sea water. This relationship coincided fairly well with the results of his previous report.

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In my previous paper (1954) I have noticed that Calanus plumchrus MARUKAWA is identical with Calanus tonsus BRADY. However, upon examination of the specimen of C. tonsus taken from the Antarctic C. plumchrus was proved to be a characteristic copepod of the North Pacific, and is d'stinct from C. tonsus BRADY of the Antarctic.

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The so-called yakumizu, a form of red sea-water phenomena, was observed in the upper 25-meter layer at a station in the Oyashio water 95 nautical miles east of Miyako on May 27, 1955. The hydrographical conditions are almost the same as in previous reports concerning such phenomena. The number of diatom cells is 120, 000 to 190, 000 per liter in the said upper layer, and Rhizosolenia hebetata f. semispina constitutes the major part in volume of the community. Considering from the phosphorus contents of the sea-water and from the vertical distribution of diatoms, it seems that the yakumizu water is notin its early stage of production.

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The plankton larvae of littoral benthos, such as pluteus, Echinodermata postlarva, Brachyura zoëa, megalopa, porcellana, Cirripedia nauplius, cypris, cyphonautes and actinctrocha were collected with C-nets (51 cm in mouth diameter, GG 54 cf bolting silk), which were towed in the depth from 100 m layer to the surface, in Enshunada in the summer of 1955.
Plankton larvae of littoral benthos are regarded as tiny drift bottles which were thrown into coastal waters, because the habitant of these adults is restricted in coastal regions. Therefore, it is possible to know the mixing state of coastal waters by studying the quantitative distribution of the larvae.
In general, in the present survey, the large population of plankton larvae occured in the coastal region, the main Kuroshio current and the area adjacent to the northern side of the current, and this indicates that these waters are mixed with a large quantity of coastal waters. While the small population appeared in the so-called “cold water mass of Enshu-nada” and the Kuroshio waters south of the current, and this means that these waters are not 83 much mixed.

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