Aquaculture Science

Online ISSN : 2185-0194
Print ISSN : 0371-4217
ISSN-L : 0371-4217

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Volume 38, Issue 3

Displaying 1-26 of 26 articles from this issue

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Streptococcosis Occurred the Pen-cultured Coho Salmon, Oncorhynchus kisutch

Shizuo ATSUTA, Jiro YOSHIMOTO, Masahiro SAKAI, Masanori KOBAYASHI

1990 Volume 38 Issue 3 Pages 215-219
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.215

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Migration of the Oval Squid, Sepioteuthis lessoniana around Tokushima Prefecture

Yukio UETA, Yasuhiko JO

1990 Volume 38 Issue 3 Pages 221-226
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.221

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Migration of the oval squid, Sepioteuthis lessoniana Lesson, around Tokushima Prefecture, Japan, was studied by tag-recovery-survey. Fifteen squids were recaptured within 110 days after release of 305 individuals. All recovery were conducted in waters within 16.2km from release sites. Monthly CPUE of the coastal set net for this species, landed on a Fisheries Co-operative Association from 1984 to 1989, were low from January to the following April when water temperature was low. These results suggested this animal keep staying in this waters throughout all its life, except for every winter when it migrates to off-shore.

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Effect of Vitamin B₁₂-enriched Chlorella as a Food for Mass Production of the Rotifer, Brachionus plicatilis

Isao MARUYAMA, Hikoitirou KANAMARU, Nobuo NAKAMURA, Yotaro ANDO, Kazut ...

1990 Volume 38 Issue 3 Pages 227-231
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.227

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Growth of Five Diatom Species in the Filtrate from Porphyra yezoensis Culture

Hideaki ACHIHA

1990 Volume 38 Issue 3 Pages 233-237
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.233

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Effects of filtrate from P. yezoensis culture in 61 days old population on the growth of five diatom species (Skeletonema costatum, Eucampia zoodiacus, Chaetoceros didymum, Coscinodiscus sp. and Licmophora sp.) were surveyed.
Unialgal cultures were incubated at 15°C in 12: 12h light-dark cycle and illuminated by cool white fluorescent lamps at 4, 000-5, 000lux.
The results are as follows.
1) S.costatum, E. zoodiacus and Ch. didymum which made blooms in winter in Chita Bay, were stimulated the growth by the filtrates of Porphyra culture.
2) Coscinodiscus sp. was inhibited the division rate in the filtrate.
3) Licmophora sp. which is one of the epiphytic diatom on the Porphyra thalli was no influenced by the filtrate.

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Effect of Glycyrrhizine against Streptococcal Infection of Young Yellowtail, Seriola quinqueradiata

Tomoyoshi EDAHIRO, Masami HAMAGUCHI, Riichi KUSUDA

1990 Volume 38 Issue 3 Pages 239-243
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.239

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Glycyrrhizine is a main effective component of licorice, Glycyrrhiza glabra, and it has been studied in relation to various biological activities, such as anti-inflammatory activity, supressive effect on allergic reactions, and direct and indirect antiviral activity. In this study, effects on defence against streptococcal infection in young yellowtail fed glycyrrhizine were observed under laboratory conditions.
GOT and GPT values in yellowtail serum were decreased with glycyrrhizine, and complement activity, lysozyme activity, production of antibody and resistance of yellowtail to artificial streotococcal infection were increased. However, hematocrit, serum protein and phgocytosis of macrophages in head kidney were not changed. The data shows that glycyrrhizine has an effect on the liver and gives improvement in fish condition. Therefore, the resistance of yellowtail to streptococcal infection may be increased.

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Feeding Habit of Adult Largemouth Bass, Micropterus salmoides, in the Ushiku-numa Lake in the Central Honshu

Kazuhiro SHINYA, Seiichi WATANABE

1990 Volume 38 Issue 3 Pages 245-252
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.245

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Largemouth bass, Micropterus salmoides, were collected from Ushiku-numa Lake in Ibaraki Prefecture, from July, 1988 to June, 1989, and the stomach contents of 523 specimens were investigated.
Macrobrachium nipponense and Procambarus clarkii were the principal forage organisms. Pseudorasbora parva and Rhinogobius brunneus were secondly important.
As the size of bass increased, frequency of occurrence of Procambarus clarkii in stomach of bass increased, while that of Rhinogobius brunneus decreased. As the size of bass increased, maximum size of forage organisms increased, but larger bass ate small prey well.
Bass predated the crustaceans intensively throughout the year, especially in summer and winter, and also predated fishes in summer and autumn. And the bass also predated aquatic insects in spring.
Seasonal dietary changes were apparent for bass sizes. Bass under 250mm took fishes as well as crustaceans, while bass over 250mm took crustaceans intensively throughout the year.

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Growth Experiments of Juvenile Surf Clam

Yoshiharu NAKAMURA, Yoshimasa AKIMOTO, Takashi OKUTANI

1990 Volume 38 Issue 3 Pages 253-257
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.253

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Environmental Characteristics near the Bottom of each Experimental Sites

Yoshiharu NAKAMURA, Yoshimasa AKIMOTO, Takashi OKUTANI

1990 Volume 38 Issue 3 Pages 259-267
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.259

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On Measurements of the Oxygen Consumption and Filtration Rate of Juvenile Surf Clams

Yoshiharu NAKAMURA, Yoshimasa AKIMOTO, Takashi OKUTANI

1990 Volume 38 Issue 3 Pages 269-274
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.269

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Aquaculture of Fresh Water Prawns in Farm Ponds in Kannari-cho, Miyagi Prefecture

Toshimitsu ITO, Kazuhiko KUSA, Hiroyuki WATANABE, Yoshiaki TAKASAWA, T ...

1990 Volume 38 Issue 3 Pages 275-283
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.275

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We studied on the aquaculture of fresh water prawns in from ponds. Palaemon paucidens and Macrobrachium nipponensis were used as samples to this study.
Dissolved oxygen levels were very low at the depth of 2m in summer ponds. And prawn enemys exist in ponds such as carp or cat fish. But these conditions were not so effective as the prawn culture. Spawning season of P. paucidens in farm ponds was observed between early in May and early in August. And the life span was assumed over ten months. Production of P. paucidens was 23 kg/ha in nature, while cultured in net cages was 870 kg/ha and the growth in low temperature period was improved by feed. Transplantings of M. nipponensis resulted in very low survival, when prawns were released in pond the survival rates were 6 to 30 percent and in net cages were about 3 percent.

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Nitrogen Uptake by the Sterile Ulva pertusa, Ohmura Strain, and Their Interaction to the Bacterial Communities

Toyokazu NAGAHAMA, Hachiro HIRATA

1990 Volume 38 Issue 3 Pages 285-290
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.285

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In order to know the nutrient uptake by the sterile Ulva pertusa and their interaction to the bacterial communities, some culture experiments of the Ulva were carried out in a room condition of 24±1°C and about 4, 000lux (15L: 9D) .
Average uptake rates of the Ulva in the light period on nitrate-N, ammonia-N, total phosphates, and inorganic phosphate were 0.66, 0. 32, 0.02, and 0.01μg-at⋅l^-1⋅cm^-2⋅h^-1, respectively. From those results, it might be assumed that the Ulva uptakes are mainly nitrate-N and ammonia-N, but not so much of phosphate-N and total phosphates.
Pseudomonas spp, were dominant genus in both attached and free bacterial communities. Population growth of Vibrio spp. were inhibited by the inoculation of the Ulva. On the other hand, population growth of Flavobacterium spp. were promoted by the inoculation of the Ulva.
It is suggested that the sterile Ulva used in this experiments is a suitable specied for purifying the water in the coastal fish farms.

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Recent Topics of Biotechnologies in Fisheries Fields

Fumio TAKASHIMA

1990 Volume 38 Issue 3 Pages 292-293
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.292

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The Function of Microbial Ecosystem in a Mass Culture Pond of Living Food Organisms

Akinori HINO

1990 Volume 38 Issue 3 Pages 294-295
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.294

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The Water Quality in Fish Rearing Waters

Yoshiaki DEGUCHI

1990 Volume 38 Issue 3 Pages 296-297
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.296

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The Stressor and Stress of Fishes

Masato AKAZAKI

1990 Volume 38 Issue 3 Pages 298-299
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.298

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Buri Culture in Kagawa Prefecture

Syunsaku HAMAMOTO

1990 Volume 38 Issue 3 Pages 301-302
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.301

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The Dawning of the Mass-Production of Yellowtail Seedlings

Shiro FUJITA

1990 Volume 38 Issue 3 Pages 303-304
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.303

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Prosperity of Buri Culture and Advancement of the Floating Net-cage Method

Teruo HARADA

1990 Volume 38 Issue 3 Pages 304-305
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.304

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History on the Supply and Demand of Juvenile (Mojako) of Yellowtail, Seriola quinqueradiata

Mituo INAGAKI

1990 Volume 38 Issue 3 Pages 306-307
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.306

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Seedling Production of Buri, Seriola quinqueradiata

Keinosuke IMAIZUMI

1990 Volume 38 Issue 3 Pages 308-309
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.308

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Ecological Aspects of Buri and Its Historical Change of Catch Amount

Takafumi ARIMOTO, Masao NEMOTO

1990 Volume 38 Issue 3 Pages 309-310
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.309

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Present Status and Problems of Practical Diet for Yellowtail

Masahiko TAKEDA

1990 Volume 38 Issue 3 Pages 311-312
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.311

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History and Current Topics of Diseases in Cultured Yellowtail, Seriola quinqueradiata

Riichi KUSUDA

1990 Volume 38 Issue 3 Pages 312-313
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.312

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On the Business Improvement of the Yellowtails Culture in Shallow Seas

Tsuneo YAGI

1990 Volume 38 Issue 3 Pages 313-314
Published: September 30, 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.313

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ERRATUM

1990 Volume 38 Issue 3 Pages e1a
Published: 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.3_e1a

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ERRATUM

1990 Volume 38 Issue 3 Pages e1b
Published: 1990
Released on J-STAGE: March 09, 2010

DOIhttps://doi.org/10.11233/aquaculturesci1953.38.3_e1b

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