著者

西村 三郎

出版者

日本海洋学会

雑誌

日本海洋学会誌 (ISSN:00298131)

巻号頁・発行日

vol.14, no.3, pp.109-116, 1958-10-25 (Released:2011-06-17)

参考文献数

46

被引用文献数

1

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1) 日本列島対馬暖流域におけるハリセンボンの移動=洞游,とくに本州および北九州の西岸において冬季顕著にみられる集団接岸現象, すなわち“寄り”の機構に関してひとつの仮説を提示した.2) 九州南方の低緯度海域で発生したハリセンボンの稚・幼魚は黒潮および対馬暖流によつてはこばれて日本海に流入する. その時期は6~11月ごるであろう. 対馬・九州近海でみられるハリセンボン出現の夏のピークはこの流入する北上群に由来するものであろうと考えられる.3) 日本海に入つた魚群は暖流主流軸に沿つてはるか沖合を北上するためにあまり眼につかないが, 暖流は本州北端において沿岸に収歛するので, 津軽海峡近海ではふたゝびこの北上群が認められるようになる. 魚群の一部は海峡を通過して太平洋に出, 一部は陸奥湾内に流入し, 一部は北海道西岸を北上する. この分派の割合は季節によつて異なるであろう.4) になつて,北西季節風が卓越するようになると,それによつてひきおこされた優勢な吹送流によつて,夏の間日本海の沖合部に滞留していた,あるいはそこを通過中のハリセンボン群は南~南西方向に押しながされて本州沿岸部に達し, シケのときには浜辺にうちあげられたり, 沿岸の定置網などにのつたりして, いわゆる“寄り”現象を呈するのであろう. この南下群の一部はさらに本州に沿つて押しながされて北九州の沿岸に達し, こゝにも“寄り”を生起せしめるのであると考えられる.

著者

西村 三郎 原 幸治

出版者

日本爬虫両棲類学会

雑誌

爬蟲兩棲類學雑誌 (ISSN:02853191)

巻号頁・発行日

vol.2, no.3, pp.31-35, 1967-05-25 (Released:2009-03-27)

参考文献数

15

被引用文献数

1

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日本近海産アカウミガメ類の分類学的取扱いが混乱している現状を明らかにし,次のことをのべた。1.日本近海に普通に産し,南日本に産卵のため上陸するいわゆる‘アカウミガメ’の集団は唯1種よりなり,それはolivacea Eschscholtzではなく,caretta Linnéに該当する。2.したがって,この集団の学名としてはCaretta caretta(Linné),そして,和名としては‘アカウミガメ’を用いるべきである。3.いっぽう,Lepidochelys olivacea(Eschscholtz)の日本近海における出現は稀なようで,現在のところ,確実な記録としては,福岡県志賀島および新潟県寺泊での捕獲があるのみである。4.Lepidochelys olivaceaを‘ヒメウミガメ’と呼ぶことを提案する。

著者

西村三郎著

出版者

紀伊國屋書店

巻号頁・発行日

1999

著者

西村三郎編著

出版者

保育社

巻号頁・発行日

1992

著者

西村 三郎 宮崎 明世 岡出 美則 小林 育斗

出版者

日本スポーツ教育学会

雑誌

スポーツ教育学研究 (ISSN:09118845)

巻号頁・発行日

vol.37, no.2, pp.15-29, 2018-02-28 (Released:2018-05-01)

参考文献数

31

被引用文献数

1

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The purpose of this study was to examine whether male high school students can increase their sprinting velocity by improving sprint techniques according to the sprinting abilities in physical education. The participants were grouped according their sprinting velocity by classification criteria (Nishimura et al., 2016) from 139 male students in the 2nd year of high school. The Normal group and the Poor group had 16 and 18 students, respectively. Participants received sprinting instruction over 6 lessons, and 50m sprinting measurements were taken during the 1st and 6th lessons. Their sprinting motions were recorded approximately 35 m from the start line with a high-speed video camera using the side view angle. For evaluating the sprinting motion, joint and segment angles were obtained from the video. The 2 groups were compared using a paired t-test, which revealed significant differences between the pre and post-measurements. Both the Normal group and the Poor group increased their sprinting velocity by improving not so much common sprint technique as specific sprint technique. This result suggested that high school male students could increase their sprinting velocity by improving techniques according to their sprinting abilities.

著者

西村 三郎 宮崎 明世 小林 育斗 岡出 美則

出版者

日本スポーツ教育学会

雑誌

スポーツ教育学研究 (ISSN:09118845)

巻号頁・発行日

vol.36, no.2, pp.1-14, 2016-11-30 (Released:2017-04-03)

参考文献数

29

被引用文献数

2 2

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This study aims to reveal necessary sprint techniques based on the abilities observed in male high school students. The participants were 232 boys. The experiment involved the participants performing a 50 m sprint.Their sprinting motions were recorded approximately 35 m from the start line with a high-speed video camera using the side view angle. The participants were extracted according to their sprinting velocity by following criteria: the Excellent group (35 students, M + 1SD), Normal group (27 students, M ± 0.25SD), and Poor group (27 students, M−1SD). For evaluating the sprinting motion, joint and segment angles were obtained from the video. These were ankle joint angle, knee joint angle, shank segment angle, thigh segment angle, and body trunk segment angle. The three groups were compared through an analysis of variance to explain the significant differences between them. We identified the techniques each group needed to learn for good sprint ability based on these differences.The results were as follows:1) The sprint techniques that the Normal and Poor groups both needed to acquire were swinging the free leg forward with a flexed knee just after takeoff and pulling the thigh of the free leg up.2) Specific sprint techniques that the Normal group needed to acquire were keeping the knee of the support leg less flexed during the support phase and not leaning the body trunk forward excessively at prophase in support phase.3) Specific sprint techniques that the Poor group needed to acquire were bringing the shank perpendicular to the ground and landing forefoot.

著者

山本 初美 鏡 勇吉 黒川 幹夫 西村 三郎 久保 真吉 井上 正保 村山 大記

出版者

北海道大学

雑誌

北海道大学農学部邦文紀要 (ISSN:03675726)

巻号頁・発行日

vol.7, no.4, pp.491-512, 1970-12-28

著者

西村 三郎

出版者

日本生態学会

雑誌

日本生態学会誌 (ISSN:00215007)

巻号頁・発行日

vol.10, no.1, pp.6-11, 1960-02-01

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1. From the materials concerning the occurrence and distribution of pelagic larvae and the drift of youngs, the main spawning area of the porcupine puffers, Diodon holacanthus LINNAEUS, immigrating to the Japanese waters was estimated to be found in the coastal regions of Luzon, Formosa, the Yaeyama Islands and their vicinity, while their spawning season to extend over April to July(Fig. 1 and Table 1). 2. A discussion was made on the migration of young porcupine puffers in the surrounding waters of Japan, with particular reference to the influences upon their drift of the main streams of the Kuroshiwo and the Tsushima Current as well as the drift currents generated by the northwest monsoon winds, and maps showing their probable migration routes were presented. (Figs. 2 and 3). 3. The migration of this Diodontid fish to the Japanese waters may be classified into the "propagative migration", i.e., a migration of a passive nature during the planktonic or pelagic juvenile stage, and so far as the fish schools that entered into the Japan Sea are concerned, their migration can be termed as "abortive", for most of them are considered to be stranded to perish on the seashore during the stormy winter days.