航空観察によつて得られた流れ藻量からモジャコ資源量を推定する1つの試み-II 流れ藻量の推定

三谷 文夫

doi:10.2331/suisan.31.429

航空観察によつて得られた流れ藻量からモジャコ資源量を推定する1つの試み-II

流れ藻量の推定

三谷文夫

著者情報

ジャーナルフリー

1965 年 31 巻 6 号 p. 429-434

DOI https://doi.org/10.2331/suisan.31.429

詳細

発行日: 1965/06/25 受付日: - J-STAGE公開日: 2008/02/29 受理日: 1965/04/20 早期公開日: - 改訂日: -
訂正情報
訂正日: 2008/02/29 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : In the previous paper the general plan of the present investigation and the methods used in the survey were given in detail and also the floating seaweeds in the sea to the west of Kyushu in May of 1964 were arranged into nineteen groups, mainly on the basis of the observations from the aeroplane. In the present paper those floating seaweeds are quantitatively dealt with, based on the data from eye-measurement and aerial photograph.
The results obtained are as follows:
1) According to the aerial photographs, most of the floating seaweeds were less than 10m² in area or 80kg in weight, and the largest of the rest was as much as 136m² in area, as shown in Fig. 4.
2) Estimated amount of the floating seaweeds in the sea are given by each group in Table 2. In total, they measured about 52, 000m² in area or 407 metric ton in weight.
3) The distribution density of the floating seaweeds was 10.1kg/km² in the region to the north of N 32°30′, 10.9kg/km² in the region between N 32°30′ and N 31°30′, and only 0.3kg/km² in the region to the south of N 31°30′, and that in the area to the east off the Fukueshima of the Goto Islands was 114.1kg/km², which was locally the highest.
Judging from the various facts, it can be said that the amount of the floating seaweeds in the spring of 1964 was less than that of the normal year.
4) The relation between the area and the weight of the floating seaweeds is given by the equation (2), namely, W=7.89×A; where W is weight in kg of floating seaweed and A, area in m².
Right : In the previous paper the general plan of the present investigation and the methods used in the survey were given in detail and also the floating seaweeds in the sea to the west of Kyushu in May of 1964 were arranged into nineteen groups, mainly on the basis of the observations from the aeroplane. In the present paper those floating seaweeds are quantitatively dealt with, based on the data from eye-measurement and aerial photograph.
The results obtained are as follows:
1) According to the aerial photographs, most of the floating seaweeds were less than 10m² in area or 80kg in weight, and the largest of the rest was as much as 136m² in area, as shown in Fig. 4.
2) Estimated amount of the floating seaweeds in the sea are given by each group in Table 2. In total, they measured about 52, 000m² in area or 407 metric ton in weight.
3) The distribution density of the floating seaweeds was 10.1kg/km² in the region to the north of N 32°30', 10.9kg/km² in the region between N 32°30' and N 31°30', and only 0.3kg/km² in the region to the south of N 31°30', and that in the area to the east off the Fukueshima of the Goto Islands was 114.1kg/km², which was locally the highest.
Judging from the various facts, it can be said that the amount of the floating seaweeds in the spring of 1964 was less than that of the normal year.
4) The relation between the area and the weight of the floating seaweeds is given by the equation (2), namely, W=7.89×A; where W is weight in kg of floating seaweed and A, area in m².

訂正日: 2008/02/29 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

In the previous paper the general plan of the present investigation and the methods used in the survey were given in detail and also the floating seaweeds in the sea to the west of Kyushu in May of 1964 were arranged into nineteen groups, mainly on the basis of the observations from the aeroplane. In the present paper those floating seaweeds are quantitatively dealt with, based on the data from eye-measurement and aerial photograph.
The results obtained are as follows:
1) According to the aerial photographs, most of the floating seaweeds were less than 10m² in area or 80kg in weight, and the largest of the rest was as much as 136m² in area, as shown in Fig. 4.
2) Estimated amount of the floating seaweeds in the sea are given by each group in Table 2. In total, they measured about 52, 000m² in area or 407 metric ton in weight.
3) The distribution density of the floating seaweeds was 10.1kg/km² in the region to the north of N 32°30', 10.9kg/km² in the region between N 32°30' and N 31°30', and only 0.3kg/km² in the region to the south of N 31°30', and that in the area to the east off the Fukueshima of the Goto Islands was 114.1kg/km², which was locally the highest.
Judging from the various facts, it can be said that the amount of the floating seaweeds in the spring of 1964 was less than that of the normal year.
4) The relation between the area and the weight of the floating seaweeds is given by the equation (2), namely, W=7.89×A; where W is weight in kg of floating seaweed and A, area in m².

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