- 資源タイプ一覧
- departmental bulletin paper
departmental bulletin paper
None
Journal of National Fisheries University Volume 6 Issue 1
pp. 141 - 148
published_at 1956-11
Journal of National Fisheries University Volume 61 Issue 1
pp. 1 - 10
published_at 2012-09
Journal of National Fisheries University Volume 63 Issue 2
pp. 111 - 125
published_at 2015-02
Creators :
Doi Hiroyuki
Kushimoto Teppei
Sonoyama Takayuki
Ishibasi Toshiaki
Sakai Harumi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 63 Issue 2
pp. 83 - 95
published_at 2015-02
Journal of National Fisheries University Volume 61 Issue 1
pp. 15 - 18
published_at 2012-09
Creators :
Yamamoto Ken-ichi
Handa Takeshi
Minato Yoshiyuki
Odawara Kazusi
Sone Ken-ichi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 63 Issue 4
pp. 232 - 236
published_at 2015-03
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 63 Issue 4
pp. 250 - 260
published_at 2015-03
Creators :
Kondo Masakazu
Nakashita Ryo
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 61 Issue 1
pp. 19 - 22
published_at 2012-09
Creators :
Yamamoto Ken-ichi
Handa Takeshi
Minato Yoshiyuki
Odawara Kazusi
Sone Ken-ichi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 64 Issue 1
pp. 57 - 64
published_at 2015-12
Creators :
Watanabe Toshiaki
Nakamura Makoto
Ohta Hiromitsu
Publishers : National Fisheries University
Journal of National Fisheries University Volume 65 Issue 1
pp. 9 - 18
published_at 2017-01
Journal of National Fisheries University Volume 65 Issue 1
pp. 19 - 29
published_at 2017-01
Creators :
Abe Mahiko
Murase Noboru
Hatama Toshihiro
Shikano Yosuke
Kanai Taisei
Publishers : National Fisheries University
Journal of National Fisheries University Volume 6 Issue 3
pp. 327 - 336
published_at 1957-07
Journal of National Fisheries University Volume 6 Issue 3
pp. 323 - 326
published_at 1957-07
Journal of National Fisheries University Volume 66 Issue 3
pp. 103 - 110
published_at 2018-03
Creators :
Handa Takeshi
Araki Akira
Kawana Koji
Yamamoto Ken-ichi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 65 Issue 4
pp. 195 - 201
published_at 2017-03
Creators :
Kondo Masakazu
Higashikawa Shouki
Hirayama Hiroki
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 1
pp. 35 - 40
published_at 2017-11
Journal of National Fisheries University Volume 65 Issue 4
pp. 223 - 227
published_at 2017-03
Journal of National Fisheries University Volume 66 Issue 2
pp. 81 - 88
published_at 2018-01
Creators :
Abe Mahiko
Murase Noboru
Nakae Misato
Nakayama Toma
Nakagawa Masahiro
Shikano Yosuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 3
pp. 123 - 129
published_at 2018-03
Journal of National Fisheries University Volume 66 Issue 3
pp. 183 - 187
published_at 2018-03
Creators :
Kondo Masakazu
Maekawa Kouhei
Kubota Taiki
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 3
pp. 195 - 197
published_at 2018-03
Creators :
Kondo Masakazu
Higashikawa Shouki
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 3
pp. 199 - 201
published_at 2018-03
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 1 Issue 1
pp. 7 - 11
published_at 1949-12
Journal of National Fisheries University Volume 66 Issue 4
pp. 203 - 208
published_at 2018-03
Journal of National Fisheries University Volume 66 Issue 4
pp. 209 - 214
published_at 2018-03
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 4
pp. 215 - 220
published_at 2018-03
Creators :
Murase Noboru
Abe Mahiko
Fukudome Kei
Nakagawa Masahiro
Shikano Yosuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 4
pp. 229 - 234
published_at 2018-03
Creators :
Tanoue Hideaki
Imachi Hiroaki
Suizu Takanori
Yokota Shun
Nagai Setsuko
Fukumura Naoto
Kajikawa Yoritake
Mohri Masahiko
Publishers : National Fisheries University
水産大学校研究報告 Volume 66 Issue 4
pp. 227 - 228
published_at 2018-03
Journal of National Fisheries University Volume 67 Issue 1
pp. 13 - 23
published_at 2018-11
Creators :
Abe Mahiko
Shiota Mayu
Murase Noboru
Shikano Yousuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 1
pp. 41 - 41
published_at 2018-11
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 2
pp. 99 - 131
published_at 2019-01
Journal of National Fisheries University Volume 67 Issue 3
pp. 167 - 169
published_at 2019-03
Journal of National Fisheries University Volume 67 Issue 4
pp. 269 - 272
published_at 2019-03
Journal of National Fisheries University Volume 1 Issue 1
pp. 33 - 49
published_at 1949-12
Journal of National Fisheries University Volume 67 Issue 3
pp. 153 - 159
published_at 2019-03
Creators :
Kondo Masakazu
Tateishi Kohei
Hirayama Hiroki
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 4
pp. 253 - 261
published_at 2019-03
Journal of National Fisheries University Volume 68 Issue 1
pp. 1 - 9
published_at 2019-11
Creators :
Ohkubo Makoto
Yaguchi Shigenori
Kondo Masakazu
Maeda Toshimichi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 68 Issue 1
pp. 11 - 15
published_at 2019-11
Creators :
Abe Mahiko
Ohashira Tomomi
Murase Noboru
Kishioka Masanobu
Publishers : National Fisheries University
Journal of National Fisheries University Volume 68 Issue 1
pp. 17 - 27
published_at 2019-11
Creators :
Kodama Takumi
Itakura Nobuaki
Nishimura Emi
Fujii Yosuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 68 Issue 1
pp. 29 - 39
published_at 2019-11
Journal of National Fisheries University Volume 68 Issue 2
pp. 49 - 54
published_at 2020-01
Journal of National Fisheries University Volume 68 Issue 3
pp. 71 - 77
published_at 2020-01
Journal of National Fisheries University Volume 68 Issue 3
pp. 79 - 82
published_at 2020-01
Creators :
Kondo Masakazu
Harada Muneyuki
Yasumoto Shinya
Publishers : National Fisheries University
Journal of National Fisheries University Volume 68 Issue 4
pp. 97 - 106
published_at 2020-03
Journal of National Fisheries University Volume 68 Issue 4
pp. 107 - 114
published_at 2020-03
Creators :
Matsumoto Yuya
Kotake Naoki
Yamamoto yoshihisa
Hokimoto Ken
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 4
pp. 263 - 268
published_at 2019-03
Creators :
Takeshita Naohiko
Hamada Toshinori
Hatooka Fumitaka
Uehara Takashi
Ogi Tama
Ikeda Itaru
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 2
pp. 51 - 57
published_at 2021-02
Creators :
Kondo Masakazu
Watanabe Riho
Tachibanagi Keito
Kimura Takehiro
Yasumoto Shinya
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 3
pp. 65 - 68
published_at 2021-03
Creators :
Kondo Masakazu
Kurita Masaki
Kitamura Hiroki
Yasumoto Shinya
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 3
pp. 75 - 79
published_at 2021-03
Creators :
Abe Mahiko
Sakiyama Kai
Ohashira Tomomi
Kato Daiki
Nakagawa Masahiro
Sato Tomoko
Murase Noboru
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 4
pp. 81 - 88
published_at 2021-03
Creators :
Murase Noboru
Tanada Norio
Tada Atsushi
Shimabukuro Hiromori
Yoshida Goro
Abe Mahiko
Noda Mikio
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 4
pp. 89 - 92
published_at 2021-03
Journal of National Fisheries University Volume 68 Issue 2
pp. 65 - 70
published_at 2020-01
Journal of National Fisheries University Volume 61 Issue 4
pp. 190 - 210
published_at 2013-03
Journal of National Fisheries University Volume 60 Issue 4
pp. 173 - 181
published_at 2012-03
Journal of National Fisheries University Volume 60 Issue 4
pp. 189 - 195
published_at 2012-03
Creators :
Kondo Masakazu
Tomonaga Susumu
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 70 Issue 1
pp. 1 - 9
published_at 2021-10
To clarify the effects of intertidal groundwater discharge on macrofaunal community structures of tidal flats, the species richness, abundance and biomass of macrobenthos at the groundwater-seepage area were assessed quantitatively, measuring environmental conditions including sediment temperature, median diameter, ORP and ignition loss, and salinity, water temperature and nutrient concentration of pore water at four sites (Nakatsu River mouth, Sanbyakuken, Higashihama, Oshinden) on the Nakatsu tidal flat, Oita prefecture, Japan, at low tides in June and July, 2019. A total of 1,233 individuals, belonging to 51 macrobenthic species (37 families) were collected. Mean species richness and biomass were significantly greatest at Higashihama, whereas mean abundance was greatest at the Nakatsu River mouth. Lower species richness, abundance and biomass were recorded at Sanbyakuken. At Higashihama, infaunal species such as the bivalve Glauconome angulata and polychaete Ceratonereis erythraeensis were dominant in the lower salinity and higher nutrient environments. A canonical correspondence analysis showed a positive correlation between nutrients and dominant bivalve abundance. The overall results suggested that intertidal groundwater influences the macrofaunal community structure, providing low salinity and nutrient-rich conditions, which contribute to the high productivity and diversity of marine organisms on tidal flats.
Creators :
Kajiwara Kaede
Nanjo Kusuto
Abe Mahiko
Ashikaga Yukiko
Yamamori Takumi
Wada Taichi
Suda Yusuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 70 Issue 1
pp. 27 - 34
published_at 2021-10
The Japanese lates, Lates japonicus is an endemic fish to the Pacific coast of southern Japan, and commonly found in estuaries and coastal waters of Miyazaki and Kochi Prefectures. The larvae, juveniles and young fish stay in the eelgrass, Zostera japonica beds in brackish water areas. Effects of water temperature and salinity on feeding and growth of immature L. japonicus were studied using combinations of seven levels of temperatures (16 to 28℃) and 6 different salinities (9 to 34 ppt) over two experimental periods each of 30 days. At each of these conditions, ten fish were reared in aquaria for periods of 30 days. Based on values of the daily feeding rates, specific growth rates and feeding efficiencies, we found that immature L. japonicus were euryhaline and at salinities ranged from 9 to 34 ppt showed similar feeding and growth rates. The suitable water temperature range was 22 to 28℃, and the optimal water temperature range was 26 to 28℃ for feeding and growth for immature L. japonicus.
Creators :
Takeshita Naohiko
Kondou Takuya
Ikeda Itaru
Takahashi Hiroshi
Nagata Shingo
Hoshino Kazuo
Publishers : National Fisheries University
Journal of National Fisheries University Volume 70 Issue 2
pp. 45 - 54
published_at 2021-12
This paper shows the vibration characteristics of a sliding bearings. Especially, the self-excited vibration to be called as oil whirl generated in sliding bearing is studied in the current paper. Three methods like trajectory analysis, tracking analysis and frequency analysis of shaft vibration are analyzed to clarify the vibration characteristics of oil whirl. The oil whirl in a sliding bearing is a characteristic self-oscillation, which occurs at a rotation speed less than the twice of the critical speed of the experimental system. In addition, when oil whirl and shaft unbalance are simultaneously generated in a sliding bearing, the frequency response in all domains of frequency is suddenly become larger compared to that in the case of the only oil whirl. It seems that simultaneous development of oil whirl and shaft unbalance generate the large damage to the rotary machinery system. Furthermore, the amount of whirling to the shaft generated by the oil whirl are identified large in the horizontal, vertical and axial directions of sliding bearing. Particularly, the amount of whirling in the horizontal direction is identified larger, because, there is no suppression as gravity and structural barrier in this direction like that in the vertical and in the axial directions.
Creators :
Ohta Hiromitsu
Takada Hirotomo
Fukui Ryousuke
Nagahashi Naoya
Yamada Yuta
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 4
pp. 103 - 107
published_at 2021-03
Creators :
Kondo Masakazu
Kimura Takehiro
Yoshikawa Hiroyuki
Yasumoto Shinya
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 3
pp. 69 - 73
published_at 2021-03
Creators :
Kondo Masakazu
Watanabe Riho
Tachibanagi Keito
Kimura Takehiro
Yasumoto Shinya
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 1
pp. 9 - 15
published_at 2020-11
Journal of National Fisheries University Volume 69 Issue 1
pp. 17 - 23
published_at 2020-11
Creators :
Takeshita Naohiko
Hatooka Fumitaka
Uehara Takashi
Ogi Tama
Hamada Toshinori
Ikeda Itaru
Publishers : National Fisheries University
Journal of National Fisheries University Volume 62 Issue 1
pp. 9 - 12
published_at 2013-09
水産大学校研究報告 Volume 52 Issue 4
pp. 129 - 138
published_at 2004-03
水産大学校研究報告 Volume 51 Issue 2
pp. 37 - 43
published_at 2003-02
Creators :
Shiba Tsuneo
Furushita Manabu
Yorifuji Hajime
Murakami Masatada
Maeda Toshimichi
Publishers : 水産大学校
Journal of National Fisheries University Volume 58 Issue 4
pp. 233 - 238
published_at 2010-03
Creators :
Kawasaki Junji
Shimokawa Shin-ya
Okuda Kuniharu
Publishers : National Fisheries University
Journal of National Fisheries University Volume 68 Issue 3
pp. 93 - 95
published_at 2020-01
Journal of National Fisheries University Volume 67 Issue 4
pp. 237 - 241
published_at 2019-03
Creators :
Yaguchi Shigenori
Nakanishi Yuya
Iwano Shuhei
Ohkubo Makoto
Maeda Toshimichi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 4
pp. 231 - 236
published_at 2019-03
Creators :
Yasumoto Shinya
Omura Takuya
Nakamura Kazuya
Kondo Masakazu
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 4
pp. 243 - 252
published_at 2019-03
Journal of National Fisheries University Volume 67 Issue 3
pp. 171 - 222
published_at 2019-03
Journal of National Fisheries University Volume 67 Issue 3
pp. 133 - 139
published_at 2019-03
Journal of National Fisheries University Volume 67 Issue 2
pp. 71 - 77
published_at 2019-01
Creators :
Ichinose Junya
Takami Tarou
Nishida Tetsuya
Inoue Norihiro
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 1
pp. 25 - 31
published_at 2018-11
Journal of National Fisheries University Volume 67 Issue 1
pp. 1 - 11
published_at 2018-11
Creators :
Ishii Keita
Yamasaki Yasuhiro
Abe Mahiko
Murase Noboru
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 4
pp. 221 - 226
published_at 2018-03
Creators :
Fukuda Tsubasa
Nakata Tae
Tatsuno Ryohei
Furushita Manabu
Publishers : National Fisheries University
Journal of National Fisheries University Volume 66 Issue 3
pp. 173 - 182
published_at 2018-03
Journal of National Fisheries University Volume 66 Issue 3
pp. 141 - 172
published_at 2018-03
Journal of National Fisheries University Volume 66 Issue 3
pp. 111 - 122
published_at 2018-03
Creators :
Noda Mikio
Kinoshita Junji
Tanada Norio
Murase Noboru
Publishers : National Fisheries University
Journal of National Fisheries University Volume 1 Issue 1
pp. 109 - 111
published_at 1949-12
Journal of National Fisheries University Volume 1 Issue 1
pp. 13 - 26
published_at 1949-12
Journal of National Fisheries University Volume 1 Issue 1
pp. 27 - 32
published_at 1949-12
Journal of National Fisheries University Volume 2 Issue 1
pp. 48 - 53
published_at 1952-07
Journal of National Fisheries University Volume 2 Issue 1
pp. 40 - 47
published_at 1952-07
Journal of National Fisheries University Volume 3 Issue 3
pp. 275 - 282
published_at 1954-03
Journal of National Fisheries University Volume 3 Issue 3
pp. 201 - 207
published_at 1954-03
Journal of National Fisheries University Volume 3 Issue 3
pp. 229 - 233
published_at 1954-03
Journal of National Fisheries University Volume 3 Issue 2
pp. 181 - 185
published_at 1953-11
Journal of National Fisheries University Volume 3 Issue 2
pp. 133 - 140
published_at 1953-11
Journal of National Fisheries University Volume 3 Issue 1
pp. 1 - 106
published_at 1953-09
Journal of National Fisheries University Volume 4 Issue 2
pp. 203 - 209
published_at 1955-03
Journal of National Fisheries University Volume 4 Issue 2
pp. 197 - 202
published_at 1955-03
水産大学校研究報告 Volume 33 Issue 1
pp. 1 - 9
published_at 1984-12
Journal of National Fisheries University Volume 4 Issue 2
pp. 159 - 166
published_at 1955-03
Journal of National Fisheries University Volume 4 Issue 2
pp. 133 - 148
published_at 1955-03
Journal of National Fisheries University Volume 70 Issue 3
pp. 69 - 77
published_at 2022-01
We investigated the oxygen and acid–base status of the noble scallop Mimachlamys nobilis during air exposure for 24 h. The hemolymph of noble scallop was collected from the adductor muscle, and O_2 partial pressure (Po_2), pH, CO_2 partial pressure (Pco_2), and bicarbonate ion concentration ([HCO_3^–]) were examined during air exposure. Hemolymph Po_2 decreased from 69.5 torr (mean value) to 46.3 torr during air exposure for 6 h, and reached to 19.0 torr after 24 h. The hemolymph Po_2 of air-exposed noble scallops decreased gradually and caused progressive hypoxemia by hypoventilation of the ctenidium. Air-exposed noble scallops showed a reduction in pH and elevation of Pco_2 and [HCO_3^–] of the hemolymph. In air-exposed noble scallops, the hemolymph pH decreased from 7.460 to 7.045 at 6 h and to 6.348 at 24 h. The hemolymph Pco_2 increased from 1.30 torr to 5.05 torr at 6 h and to 56.6 torr at 24 h during air exposure. The [HCO_3^–] increased from 1.26 mM/L to 1.88 mM/L at 6 h and to 4.19 mM/L at 24 h. N32From these results, in the first 6 h of air exposure, noble scallops mainly underwent respiratory acidosis by excess accumulation of CO_2 due to hypoventilation. Meanwhile, after 24 h of air exposure, noble scallops showed mainly metabolic acidosis partially compensated by mobilized [HCO_3^–] from the shell.
Journal of National Fisheries University Volume 56 Issue 1
pp. 125 - 134
published_at 2007-11
Creators :
Bong-Gi Lee
Jae-Soo Choi
Hyeung-Rak Kim
Publishers : National Fisheries University
Journal of National Fisheries University Volume 70 Issue 3
pp. 79 - 89
published_at 2022-01
In the fishery industry, fishing nets tend to be in the water for a long time. Therefore, there is a possibility that the fishing nets will be broken by marine animals or “Kyucho”; it stands for the violent currents caused by tides or typhoons. It is necessary to repair fishing nets as soon as possible for preventing fishes from escaping to outside of the fishing net. However, a great deal of labor is required to lift and repair fishing nets. In addition, high water pressure and low water temperature may make it difficult for divers to work underwater. Therefore, underwater robot is useful to work instead of divers under such severe situations. The author suggests development of the underwater ROV (Remotely Operated Vehicle) type robot that can move on fishing net with magnet tires and repair the net using manipulators. This paper introduces the development and performance evaluation of the underwater robot using magnetic mobile mechanism.
Journal of National Fisheries University Volume 5 Issue 3
pp. 225 - 231
published_at 1955-12