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- departmental bulletin paper
departmental bulletin paper
None
水産大学校研究報告 Volume 25 Issue 3
pp. 213 - 220
published_at 1977-03
水産大学校研究報告 Volume 55 Issue 1
pp. 13 - 17
published_at 2006-11
Creators :
Harada Hideaki
Nagae Akira
Tanaka Minoru
Ohta Masataka
Kondo Masakazu
Takahashi Yukinori
Inagawa Hiroyuki
Publishers : 水産大学校
水産大学校研究報告 Volume 51 Issue 4
pp. 125 - 131
published_at 2003-03
Creators :
Morimoto Eiji
Taira Yuichiro
Tomiyasu Noboru
Nakamura Makoto
Katoh Takanori
Ichinose Junya
Publishers : 水産大学校
水産大学校研究報告 Volume 53 Issue 4
pp. 197 - 202
published_at 2005-04
Creators :
Kondo Masakazu
Kashiwamura Naohiro
Kanamaru Shunsuke
Inagawa Hiroyuki
Takahashi Yukinori
Publishers : 水産大学校
水産大学校研究報告 Volume 54 Issue 4
pp. 153 - 157
published_at 2006-03
水産大学校研究報告 Volume 55 Issue 4
pp. 141 - 147
published_at 2007-03
Journal of National Fisheries University Volume 61 Issue 3
pp. 157 - 159
published_at 2013-02
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
水産大学校研究報告 Volume 54 Issue 4
pp. 197 - 208
published_at 2006-03
Creators :
Nagamatsu Kimiaki
Tabuchi Kiyoharu
Mizutani Satoru
Kamano Tadashi
Hata Kazuhiro
Fukami Kiyohiko
Inoue Satoru
Kazikawa Yoritake
Publishers : 水産大学校
Journal of National Fisheries University Volume 56 Issue 4
pp. 311 - 315
published_at 2008-03
水産大学校研究報告 Volume 47 Issue 3
pp. 129 - 138
published_at 1999-02
水産大学校研究報告 Volume 48 Issue 3
pp. 207 - 219
published_at 2000-01
水産大学校研究報告 Volume 48 Issue 1
pp. 1 - 10
published_at 1999-07
Creators :
Nagamatsu Kimiaki
Kubota Katsuhiko
Tabuchi Kiyoharu
Tatsumi Shigeo
Kamano Tadashi
Fukami Kiyohiko
Baba Eiji
Inoue Satoru
Fujiishi Akio
Publishers : 水産大学校
Journal of National Fisheries University Volume 61 Issue 2
pp. 43 - 49
published_at 2012-11
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 57 Issue 4
pp. 309 - 316
published_at 2009-03
Creators :
Ezoe Satoru
Takahashi Kodai
Furukawa Hidenori
Izawa Mizuo
Iwai Yoshiro
Publishers : National Fisheries University
Journal of National Fisheries University Volume 61 Issue 2
pp. 51 - 64
published_at 2012-11
Creators :
Kondo Masakazu
Yasumoto Shinya
Oono Miwa
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 61 Issue 3
pp. 87 - 101
published_at 2013-02
Creators :
Kondo Masakazu
Yasumoto Shinya
Akiyoshi Yuuki
Takahashi Yukinori
Publishers : National Fisheries University
水産大学校研究報告 Volume 48 Issue 1
pp. 49 - 56
published_at 1999-07
Creators :
Sakai Harumi
Ito Daiki
Watanabe Tomohisa
Idei Kunimasa
Ito Yukimasa
Matsubara Hajime
Takagi Motohiro
Ikeda Itaru
Publishers : 水産大学校
Journal of National Fisheries University Volume 60 Issue 4
pp. 203 - 211
published_at 2012-03
Creators :
Yasumoto Shinya
Koga Daiji
Kondo Masakazu
Takahashi Yukinori
Publishers : National Fisheries University
Staining Characteristics of Lymphocyte, Monocyte and Eosinophil from Japanese Lates, Lates japonicus
Journal of National Fisheries University Volume 60 Issue 2
pp. 95 - 102
published_at 2012-01
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 60 Issue 1
pp. 51 - 56
published_at 2011-10
Creators :
Takahashi Yukinori
Fukuda Kohei
Kondo Masakazu
Yasumoto Shinya
Hirono Ikuo
Aoki Takashi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 62 Issue 4
pp. 147 - 152
published_at 2014-03
Creators :
Murase Noboru
Abe Mahiko
Noda Mikio
Suda Yusuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 61 Issue 4
pp. 226 - 233
published_at 2013-03
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 65 Issue 3
pp. 141 - 145
published_at 2017-03
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
水産大学校研究報告 Volume 51 Issue 1
pp. 31 - 36
published_at 2002-10
水産大学校研究報告 Volume 50 Issue 3
pp. 109 - 117
published_at 2002-03
水産大学校研究報告 Volume 52 Issue 1
pp. 45 - 48
published_at 2004-01
Journal of National Fisheries University Volume 62 Issue 2
pp. 69 - 74
published_at 2014-03
Creators :
Kondo Masakazu
Yasumoto Shinya
Ikeda Itaru
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 3
pp. 141 - 151
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 62 Issue 4
pp. 129 - 135
published_at 2014-03
Creators :
Kondo Masakazu
Yasumoto Shinya
Takahashi Yukinori
Publishers : National Fisheries University
Journal of National Fisheries University Volume 67 Issue 4
pp. 223 - 229
published_at 2019-03
Journal of National Fisheries University Volume 66 Issue 3
pp. 131 - 139
published_at 2018-03
水産大学校研究報告 Volume 43 Issue 4
pp. 177 - 184
published_at 1995-03
Journal of National Fisheries University Volume 57 Issue 4
pp. 247 - 254
published_at 2009-03
Journal of National Fisheries University Volume 58 Issue 2
pp. 179 - 189
published_at 2009-12
Creators :
Yamaguchi Tetsuaki
Yasuda Hideichi
Onitsuka Goh
Izawa Mizuo
Takashima Sotarou
Yuasa Toyotoshi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 69 Issue 2
pp. 41 - 49
published_at 2021-02
Creators :
Kondo Masakazu
Yasumoto Shinya
Matsubara Hajime
Publishers : National Fisheries University
Journal of National Fisheries University Volume 68 Issue 3
pp. 83 - 91
published_at 2020-01
Journal of National Fisheries University Volume 69 Issue 3
pp. 59 - 64
published_at 2021-03
水産大学校研究報告 Volume 55 Issue 1
pp. 23 - 33
published_at 2007-03
Journal of National Fisheries University Volume 65 Issue 4
pp. 239 - 244
published_at 2017-03
Creators :
Murase Noboru
Noda Mikio
Abe Mahiko
Yoshimura Taku
Kiyomoto Setuo
Tarutani Kenji
Yoshida Goro
Shimabukuro Hiromori
Yatsuya Kousuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 56 Issue 1
pp. 21 - 32
published_at 2007-11
水産大学校研究報告 Volume 44 Issue 4
pp. 189 - 194
published_at 1996-03
水産大学校研究報告 Volume 31 Issue 1.2
pp. 31 - 39
published_at 1983-01
水産大学校研究報告 Volume 39 Issue 2.3
pp. 93 - 100
published_at 1991-03
水産大学校研究報告 Volume 53 Issue 2
pp. 41 - 56
published_at 2005-02
Creators :
Yasuda H
Matsunaga N
Tokunaga T
Abe J
Takashima S
Kohno S
Uto T
Onitsuka G
Izawa M
Kawano S
Publishers : 水産大学校
水産大学校研究報告 Volume 44 Issue 3
pp. 131 - 136
published_at 1996-02
水産大学校研究報告 Volume 23 Issue 2
pp. 67 - 86
published_at 1974-12
水産大学校研究報告 Volume 40 Issue 1
pp. 11 - 15
published_at 1991-10
水産大学校研究報告 Volume 54 Issue 2
pp. 55 - 62
published_at 2006-03
Creators :
Okuda Kuniharu
Minami Kenji
Motomura Kojiro
Inoue Satoru
Sakaide Masatoshi
Publishers : 水産大学校
水産大学校研究報告 Volume 39 Issue 1
pp. 29 - 36
published_at 1990-12
水産大学校研究報告 Volume 50 Issue 4
pp. 129 - 136
published_at 2002-03
Creators :
Morishita Shin-ichi
Maeda Kazuyuki
Abe Seizoh
Tsuda Minoru
Kirihata Tomoaki
Publishers : 水産大学校
水産大学校研究報告 Volume 55 Issue 1
pp. 1 - 11
published_at 2006-11
Creators :
Hamada Moritsugu
Terashima Daisuke
Hirayama Seito
Wada Ritsuko
Ura Hiroyuki
Nakamura Katsuhei
Publishers : 水産大学校
Journal of National Fisheries University Volume 56 Issue 1
pp. 107 - 118
published_at 2007-11
Journal of National Fisheries University Volume 56 Issue 1
pp. 161 - 169
published_at 2007-11
Creators :
Jong-Hee Lee
Sun-Hee Ahn
In-Soo Kong
Publishers : National Fisheries University
Journal of National Fisheries University Volume 56 Issue 1
pp. 39 - 46
published_at 2007-11
Journal of National Fisheries University Volume 56 Issue 1
pp. 47 - 60
published_at 2007-11
Creators :
Kishimoto Atsushi
Yasuda Hideichi
Onitsuka Goh
Takashima Sotarou
Yuasa Toyotoshi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 56 Issue 3
pp. 251 - 259
published_at 2008-02
Journal of National Fisheries University Volume 56 Issue 4
pp. 323 - 327
published_at 2008-03
Journal of National Fisheries University Volume 56 Issue 4
pp. 339 - 348
published_at 2008-03
Creators :
Ikeda Ichiro
Nakamura Makoto
Morimoto Eiji
Harada Kazuki
Maeda Toshimichi
Shimauchi Jyun
Publishers : National Fisheries University
Journal of National Fisheries University Volume 64 Issue 3
pp. 188 - 194
published_at 2016-03
Journal of National Fisheries University Volume 64 Issue 2
pp. 178 - 181
published_at 2016-02
Creators :
Yoshikawa Hiroyuki
Ino Yasuko
Iwatani Junji
Morishima Kagayaki
Publishers : National Fisheries University
Journal of National Fisheries University Volume 64 Issue 4
pp. 241 - 247
published_at 2016-03
Creators :
Tanoue Hideaki
Fujiwara Kyoji
Nakahara Takashi
Ogawa Masahiro
Hata Kazuhiro
Enoshima Taketomo
Gotou Hiroshi
Kokatsu Masaki
Ito Takafumi
Takahashi Hiroshi
Komatsu Teruhisa
Mohori Masahiko
Publishers : National Fisheries University
Journal of National Fisheries University Volume 64 Issue 4
pp. 293 - 301
published_at 2016-03
Journal of National Fisheries University Volume 57 Issue 4
pp. 323 - 330
published_at 2009-03
Creators :
Kawasaki Jyunji
Shimokawa Shin-ya
Okuda Kuniharu
Hamaguchi Masato
Publishers : National Fisheries University
Journal of National Fisheries University Volume 57 Issue 1
pp. 65 - 72
published_at 2008-10
Journal of National Fisheries University Volume 57 Issue 3
pp. 165 - 173
published_at 2009-02
Creators :
Matsuda Haruna
Hamano Tatsuo
Shimono Tomoharu
Yamana Yusuke
Publishers : National Fisheries University
Journal of National Fisheries University Volume 58 Issue 1
pp. 59 - 63
published_at 2009-11
Creators :
Mohri Masahiko
Fukada Koich
Yamada Harumi
Kamano Tadashi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 58 Issue 1
pp. 73 - 82
published_at 2009-11
Journal of National Fisheries University Volume 59 Issue 2
pp. 93 - 120
published_at 2011-01
Journal of National Fisheries University Volume 58 Issue 1
pp. 53 - 58
published_at 2009-11
Journal of National Fisheries University Volume 59 Issue 2
pp. 121 - 148
published_at 2011-01
Journal of National Fisheries University Volume 59 Issue 2
pp. 149 - 153
published_at 2011-01
Creators :
Yamamoto Ken-ichi
Handa Takeshi
Kawara Hideaki
Publishers : National Fisheries University
Journal of National Fisheries University Volume 56 Issue 2
pp. 187 - 199
published_at 2007-12
Creators :
Yamamoto Ken-ichi
Handa Takeshi
Yokota Motohiro
Takahashi Kouji
Publishers : National Fisheries University
Journal of National Fisheries University Volume 65 Issue 2
pp. 39 - 46
published_at 2017-01
水産大学校研究報告 Volume 45 Issue 2
pp. 95 - 101
published_at 1996-10
Journal of National Fisheries University Volume 56 Issue 4
pp. 299 - 310
published_at 2008-03
Creators :
Yamamoto Ken-ichi
Handa Takeshi
Shimada Makoto
Publishers : National Fisheries University
Journal of National Fisheries University Volume 59 Issue 4
pp. 227 - 231
published_at 2011-03
Journal of National Fisheries University Volume 58 Issue 2
pp. 169 - 177
published_at 2009-12
Creators :
Suda Yusuke
Murase Noboru
Fujita Tsuyoshi
Takeuchi Tamio
Publishers : National Fisheries University
Journal of National Fisheries University Volume 58 Issue 3
pp. 217 - 222
published_at 2010-03
Creators :
Okuda Kuniharu
Kawasaki Jyunji
Sakaide Masatoshi
Publishers : National Fisheries University
Journal of National Fisheries University Volume 59 Issue 1
pp. 19 - 26
published_at 2010-12
Journal of National Fisheries University Volume 61 Issue 3
pp. 81 - 85
published_at 2013-02
Journal of National Fisheries University Volume 59 Issue 4
pp. 273 - 279
published_at 2011-03
Journal of National Fisheries University Volume 71 Issue 1
pp. 1 - 9
published_at 2022-12
We investigated the oxygen and acid–base status of the densely lamellated oyster, Ostrea denselamellosa, during air exposure for 24 h. The hemolymph O_2 partial pressure decreased from 68.0 torr (mean value) to 52.1 torr during air exposure for 18 h, and reached 42.1 torr after 24 h. The hemolymph pH decreased from 7.579 to 6.798 at 18 h and to 6.361 at 24 h. The hemolymph CO_2 partial pressure increased from 1.30 torr to 40.9 torr at 24 h during air exposure. The hemolymph bicarbonate concentration increased from 1.36 mM/L to 2.81 mM/L at 24 h. The hemolymph calcium ion concentration increased from 8.2 mM/L to 10.9 mM/L at 24 h. From these results, it was revealed that the densely lamellated oysters caused a progressive hypoxemia by hypoventilation of the gill during air exposure. The densely lamellated oysters were inhibited from releasing CO_2 from the gill by hypoventilation, and respiratory acidosis was caused due to the accumulated CO_2. The densely lamellated oysters exposed to air for a long time developed metabolic acidosis due to anaerobic metabolism partially compensated with mobilized [HCO_3^–] from the shell valve.
Journal of National Fisheries University Volume 71 Issue 4
pp. 135 - 140
published_at 2023-03
In order to research the actual operation status of fishing vessels by AIS, an effective extraction method is needed even when vessel name, MMSI, and type of ship information are insufficient. In this study, we analysis on the illegal use of AIS for fishing pole to indicate the location of operations and proposes a method for estimating fishing grounds using AIS buoys. Extracted by Vendor ID and vessel name notation and visualized using the kernel density estimation to show the major fishing grounds. The use of AIS buoys is illegal, but if the reception rate of satellite AIS improves, it may be easier to determine the location of operations and prevent damage to fishing gear.
Journal of National Fisheries University Volume 71 Issue 2
pp. 43 - 55
published_at 2023-01
We aimed to clarify the microhabitat preferences of Atyidae shrimps in the middle to upper reaches of the Hiwasa R. , Kitagawatidani R. , and Mugi R. , Tokushima Prefecture, southern central Japan. Relationships between the shrimp abundance and physical environmental variables were surveyed at six sites in 2011 fall and 2012 spring by setting 5-m line transects delineated with ten consecutive 50-cm quadrats along the riverbank. The dominant shrimp species collected from the riverbanks were Caridina multidentata, Paratya compressa and Neocaridina denticulata. C. multidentata was shown to prefer loose boulder or cobble beds with interstices. When interstices were scarce, the shrimps were found inhabiting among the vegetation. P. compressa was shown to prefer vegetation and boulder or cobble bed in pools. N. denticulata tended to prefer vegetation in darker, gently-flowing areas. Our results insist that the three shrimp species segregate microhabitat under base-flow conditions, but flow reduction may cause microhabitat overlap between C. multidentata and P, compressa.
Creators :
Yonezawa Takayasu
Saito Minoru
Hatama Toshihiro
Araki Akira
Oka Naohiro
Hamano Tatsuo
Publishers : National Fisheries University
Journal of National Fisheries University Volume 71 Issue 3
pp. 81 - 87
published_at 2023-03
Embryonic development in giant cuttlefish Sepia latimanus was studied using eggs laid from broodstocks reared in captive condition. 26 embryonic stages were examined in this study and the detail process of organ development was clarified under microscope observation. Blastdisc was visible at the animal pole on the yolk at 2.5 hours after fertilizaton (HAF). The first cleavage occurred at 8.6 HAF. Then embryo developed to the morula stage at 22 HAF. Almost surface of the egg was covered with blastoderm at 10 days after fertilization (DAF). Primordia of main organs such as arms, mouth, mantle, funnel, optic vesicle, gills, statocyst, lens and optic ganglion were formed till 14 DAF. At 15 DAF calcification began in the first striation on the shell. Primordium of the shell became visible at 18 DAF. The number of striations on the shell reached to 5, 9 and 14 at 26, 32 and 40 DAF, respectively. Embryo needed 45 days for hatching. Newly hatched larva was 14 mm in mantle length and had 18 striations on the shell. The process of embryonic development in S. latimanus was very similar as S. lycidas, S. esucurenta and Sepiella japonia. S. latimanus is characterized with large newly hatched larva in Japanese sepiids. It was revealed that the large yolk of S. latimanus induces the growth of the body over a long period in the embryonic stage.
Creators :
Oka Masakazu
Tezuka Nobuhiro
Publishers : National Fisheries University
Journal of National Fisheries University Volume 71 Issue 4
pp. 109 - 122
published_at 2023-03
Neutrophil granules (NG) of adult (mature) far eastern brook lamprey Lethenteron reissneri [L. sp. S (souther form)] were classified into two types of stratified [two-layer; inner layer (L0) and outer layer (L1)] granules (type 1, NG1a; type 2, NG2), like as larva (ammocoetes) of this species. The L0 of NG1a and L0 of NG2 in adult neutrophils were chromophobic, and L1 of NG1a and L0 of NG2 showed chromatophilic. The stainability of those chromatophilic layers with May-Grünwald (MG), Giemsa, or MG-Giemsa were varied [chromophobic, eosinophilic or basophilic (orthomethylenophilic or metaazurophilic)] with a slight difference to larva. As seen in larval neutrophils, these layers were positive for alkaline phosphatase,α-naphtyl acetate esterase and Sudan black B, and some enzymes (acid phosphatase, ꞵ-glucuronidase, and naphthol AS-D chloroacetate esterase) were detected in the L0 of NG2. Alpha-naphtyl acetate esterase was positive in L0 of NG2 of adult neutrophils. Both larval and adult neutrophils lacked peroxidase.
Journal of National Fisheries University Volume 71 Issue 4
pp. 89 - 108
published_at 2023-03
Two types of stratified (two-layered) granules (type 1, NG1a; type 2, NG2) in the neutrophils of inshore hagfish Eptatretus burgei showed eosin-positive (positive site: outer layer (L1) of NG1a and inner layer (L0) of NG2). In contrast, both eosin-positive sites have been reported to be basophilic. From present result, it is clarified that both sites exhibit as follows: L1 of NG1a, eosinophilic and mataazurophilic; L0 of NG2, eosinophilic, orthomethylenophilic and mataazurophilic. The inshore hagfish neutrophils phagocytosed zymosan particles, in vitro. All blood cells showing phagocytosis were identified as neutrophil.
Journal of National Fisheries University Volume 70 Issue 4
pp. 115 - 123
published_at 2022-03
Recently overbrowsing by fish in cultivation of the wakame Undaria pinnatifida has become problematic and the black scraper Thamnaconus modestus is suspected of the feeding damage for the cultured U. pinnatifida as well as a few herbivorous fishes and the Japanese black seabream Acanthopagrus schlegelii, but aspects on feeding behavior and bite scars of the species are extremely limited. We examined characteristics of bite scars left on thalli of the cultured U. pinnatifida by feedng of T. modestus in a tank experiment. The species showed active feeding behavor of the cultured U. pinnatifida and conspicuously consumed juveniles rather than adults. Bite marks left on blades were categorized into three shapes of arc, ellipse and serration and particularly the ellipse-shaped bite mark is characteristic of T. modestus, unknouwn for other overbrowsing fishes. Additionally cut surfaces of those bite marks were edged with irregular gentle concaves. The shape of bite marks on the thalli was thought to be useful for identifying the fish species that caused the feeding damage of the cultured U. pinnatifida.
Journal of National Fisheries University Volume 62 Issue 1
pp. 31 - 38
published_at 2013-09
Creators :
Imai Chifumi
Michine Atsushi
Murayama Tatsurou
Publishers : National Fisheries University
Journal of National Fisheries University Volume 70 Issue 1
pp. 11 - 25
published_at 2021-10
The vertical migration of the first stage of five diadromous atyids (Caridina multidentata, C. typus, C. leucosticta, C. serratirostris, Paratya compressa) and two diadromous palaemonids (Macrobrachium japonicum, M. formosense) and a non-diadromous palaemonid shrimp (M. nipponense) and second zoeae of C. multidentata and M. formosense were observed under different light and salinity conditions. The first and second zoeae spread over the whole of the water column during darkness, and sank to the bottom under the light independent of the various salinity and light conditions, though there were slight differences among species. The swimming ability of the zoea is limited, thus this vertical migration is considered to be not useful for homing migration. This vertical migration at night is considered to be useful in order to feed on organic material and avoiding predators on the bottom.
Journal of National Fisheries University Volume 70 Issue 2
pp. 55 - 61
published_at 2021-12
In order to research useful organic nitrogen, survival and growth of Neopyropia yezoensis protoplasts were examined using L-arginine (Arg), L-glutamic acid (Glu), Inosine (Ino) and taurine in 0.1, 1.0 and 10 mM. For survival rates for 1 week in culture, there were no significant differences except Glu in 1.0 and 10 mM. For growth for 3 weeks in culture, Arg in 10 mM was grown over two-times higher compared with control. On the other hand, growth in Glu and taurine were suppressed under every condition. Moreover, growth in Ino in 10 mM was suppressed. Our data suggested that Neopyropia yezoensis use directly organic nitrogen and has a potential to induce growth using organic nitrogen.
Creators :
Abe Mahiko
Tara Chizuru
Fujiki Shinya
Kawasaki Shusaku
Murase Noboru
Publishers : National Fisheries University
Journal of National Fisheries University Volume 70 Issue 2
pp. 63 - 68
published_at 2021-12
In order to identify effective amino acid species, survival and growth of Neopyropia yezoensis protoplasts cultured using 18 amino acids were examined. Survival rates of each protoplast cultured for 1 week with arginine, asparagine, ornithine and tyrosine were similar to that of the control condition. Other amino acids significantly reduced the survival rates than the control. Growth of each protoplast cultured for 2 weeks with β-alanine, arginine, glutamine, histidine, lysine, ornithine and phenylalanine were significantly higher than that of the control. Histidine might be useful to make only thallus grow, although survival rate was very low. Arginine and ornithine had potentials to be able to promote the growth without negative influences on the survivals of nori cells.
Creators :
Abe Mahiko
Tara Chizuru
Fujiki Shinya
Kawasaki Shusaku
Murase Noboru
Publishers : National Fisheries University
Journal of National Fisheries University Volume 70 Issue 4
pp. 149 - 163
published_at 2022-03
Two types of stratified granules (two-layer) were observed in the eosinophils (eosinophil granule. EG: type 1, EG1; type 2, EG2) of larva (ammocoetes) of far eastern brook lamprey Lethenteron reissneri collected in a tributary of the Koyagawa River in Yamaguchi Prefecture. The EG1 consisted of inner eosinophilic layer (L0) and chromophobic outer layer (L1). Dark (low light transmittance) inclusion structure (IS), which was various size and morphology (round, oval, rod, or spindle), was observed in the L0 of many EG1 (only one IS in a EG1). The IS was found in the cytochemical staining preparation, but not in the preparation stained with May-Grunwald (MG), Giemsa and MG•Giemsa. Therefore, recognition of IS was affected with the eosin-stained L0 of EG1. The EG1 classified into three subtypes (EG1a, EG1b and EG1c) based on the optical artificial image (OAI) of IS in L0. The EG1a had no OAI (probably no IS). The OAI of both EG1b and EG1c were larger than IS. The former was round or oval chromophobic area (OAI-1), and latter was expanded and rugged (threedimensional) image (OAI-2; chromophobic; round, oval, or rod). The EG1a may be prototype of EG1. The EG1 showed no positive reaction by various cytochemical stains. The EG2 had chromophobic inner layer (L0) and basophilic (orthomethylenophilic) outer layer (L1). Some enzymes (alkaline phosphatase, acid phosphatase, ꞵ-glucuronidase, α-naphtyl acetate esterase, naphthol AS-D chloroacetate esterase) were detected in L0 of EG2. The eosinophils lacked α-naphtyl butyrate esterase and peroxidase.
Journal of National Fisheries University Volume 7 Issue 1
pp. 107 - 116
published_at 1957-11
Journal of National Fisheries University Volume 7 Issue 1
pp. 45 - 49
published_at 1957-11
Journal of National Fisheries University Volume 7 Issue 1
pp. 59 - 64
published_at 1957-11
Journal of National Fisheries University Volume 7 Issue 1
pp. 1 - 17
published_at 1957-11
Creators :
Tsuruta Arao
Satow Takerow
Hayama Kazuhiko
Chiba Takuo
Publishers : National Fisheries University
Journal of National Fisheries University Volume 7 Issue 1
pp. 147 - 150
published_at 1957-11
Journal of National Fisheries University Volume 7 Issue 1
pp. 151 - 167
published_at 1957-11
Journal of National Fisheries University Volume 7 Issue 1
pp. 179 - 183
published_at 1957-11