Acoustic pressure sensitivities and effects of particle motion in red sea bream Pagrus major     

Takahito Kojima  Tomohiro Suga  Akitsu Kusano  Saeko Shimizu  Haruna Matsumoto  Shinichi Aoki  Noriyuki Takai  Toru Taniuchi 《Fisheries Science》2010,76(1):13-20

The auditory pressure thresholds of red sea bream were examined using cardiac response in the field by placing fish subjects far from the sound source to prevent particle motion. Pressure and particle motion thresholds were also obtained using the auditory brainstem response (ABR) technique. The thresholds at 100 and 200 Hz were significantly higher when measured using the cardiac response in the far field than those obtained in previously conducted experiments in experimental tub. However, thresholds obtained using ABR from 200 to 500 Hz were not remarkably lower, although significantly different (0.01 < P < 0.05), compared with those obtained using cardiac response in the far field. Furthermore, calculated particle velocity thresholds indicated that fish probably detected particle motion within the frequency range of 50–200 Hz, even in fish with a deactivated lateral line. Although the ABR method is widely applied in fish auditory study, hearing thresholds are apparently affected by particle motion.  相似文献   

Immunological studies on Metastrongylus apri infection. IV. Influence of whole body X-irradiation or anti-guinea pig thymocyte serum injection on acquired immunity in thymectomized guinea pigs.     

M Koga  M Yamada  T Onishi  M Horie  S Noda 《Nippon juigaku zasshi. The Japanese journal of veterinary science》1976,38(6):611-618

  相似文献   

Congenital mesoblastic nephroma in a dog: a benign variant of nephroblastoma     

T Takeda  T Makita  N Nakamura  H Horie 《Veterinary pathology》1989,26(3):281-282

  相似文献   

Population size estimation of the pond smelt Hypomesus nipponensis in Lake Kasumigaura and Lake Kitaura,Japan     

Daisuke Sakamoto  Takashi Nemoto  Noriyuki Sunoh  Jun Iwasaki  Shintaro Niwa  Kazunori Arayama  Naoki Suzuki  Pai-Son  Kaori Takagi  Kazumi Sakuramoto 《Fisheries Science》2014,80(5):907-914

We estimated the population size of the pond smelt Hypomesus nipponensis at the beginning of the fishing season in Lake Kasumigaura and Lake Kitaura, Japan using two DeLury methods and cohort analysis. A growth curve was estimated on the basis of monthly standard length. The relationship between standard length and weight was utilized for calculating the mean weight on the survey day in a particular month. Total monthly catches in Lake Kasumigaura and Lake Kitaura were calculated using partial monthly pond smelt catch obtained from processing plants located near the lakes between July and December. The total monthly catch was calculated from the total monthly catch weight and the monthly mean weight. The number of boats operating each month, compiled by the Kasumigaura-Kitaura Fisheries Office of Ibaraki Prefecture, was also employed. The estimated initial population sizes were compared with the population level index (PLI) estimated from survey data before the start of the fishing season. No significant differences were detected among the initial population sizes estimated by DeLury method, cohort analysis and PLI. The estimates ranged from 7.4 million to 410 million in Lake Kasumigaura, and from 7.7 million to 44 million in Lake Kitaura.  相似文献   

A new liquid-type diet for leptocephali in mass production of artificial glass eels     

Yamada  Yoshiaki  Okamura  Akihiro  Mikawa  Naomi  Horie  Noriyuki  Tsukamoto  Katsumi 《Fisheries Science》2019,85(3):545-551

Fisheries Science - Development of artificial production of glass eels still presents many problems to be solved. What and how to feed larvae is one of the most crucial problems for commercial mass...  相似文献   

First report of powdery mildew on zinnia, blue torenia, dahurian patrinia and scoparia caused by genus Euoidium in Japan     

Hideo Hoshi  Yukio Sato  Satoshi Kagiwada  Hiromichi Horie 《Journal of General Plant Pathology》2013,79(2):89-95

Zinnia, blue torenia, dahurian patrinia, and scoparia were found to be affected by powdery mildews from 2006 to 2008 in Tokyo. Abundant white, powdery colonies were observed to grow on the stems and leaves of each plant species resulting in chlorosis and eventual dieback of infected leaves and stems. Based on the morphological characteristics of the strain from each plant species, the causal agents were determined to belong to the genus Euoidium and pathogenicity to each original host was confirmed through inoculation experiments. This is the first report of Euoidium infection on these four plant species in Japan.  相似文献   

Possible conservation units of the sun bear (Helarctos malayanus) in Sarawak based on variation of mtDNA control region     

Onuma M  Suzuki M  Ohtaishi N 《The Japanese journal of veterinary research》2006,54(2-3):135-139

The mitochondrial DNA control region of the sun bear (Helarctos malayanus) was sequenced using 21 DNA samples collected from confiscated sun bears to identify conservation units, such as evolutionarily significant units and management units, in Sarawak, Borneo Island. A total of 10 haplotypes were observed, indicating the presence of at least two lineages in the sun bear population in Sarawak. Presumably, these two lineages could represent evolutionarily significant units. However, the geographical distributions of the two lineages remained unknown due to the lack of information regarding the exact capture locations of the confiscated sun bears. It is essential to elucidate the geographical distributions of these lineages in order to create a proper conservation plan for the sun bears in Sarawak. Therefore, further studies examining the haplotype distributions using DNA samples from known localities are essential.  相似文献   

Reproduction and food habits of two species of sawtail catsharks, Galeus eastmani and G. nipponensis, in Suruga Bay, Japan     

Taku Horie  Sho Tanaka 《Fisheries Science》2000,66(5):812-825

  相似文献   

Simultaneous liquid chromatographic determination of residual synthetic antibacterials in cultured fish     

N Nose  Y Hoshino  Y Kikuchi  M Horie  K Saitoh  T Kawachi  H Nakazawa 《Journal of the Association of Official Analytical Chemists》1987,70(4):714-717

A liquid chromatographic method is described to determine simultaneously the following 11 synthetic antibacterial agents used in a fishery: nitrofuran derivatives furazolidone, nifurpirinol, difurazone, and furamizole; sulfa drugs sulfamerazine, sulfisozole, sulfamonomethoxine, and sulfadimethoxine; and, oxolinic, nalidixic, and piromidic acids. A Nucleosil C18 column was used with tetrahydrofuran-acetonitrile-phosphoric acid-water (29 + 1 + 0.06 + 69.94) as the mobile phase. Pretreatment of the fish meat sample with acetone extraction and alumina column cleanup gave good separation of the LC peaks without interference from any other components. Recovery of the antibacterial agents was ca 80%. The lower limit of detection of the drugs was 1-2 ng for 10 microL injection.  相似文献   

Prognostic value of small intestinal dilatation in dogs with protein-losing enteropathy     

Hiroshi OHTA  Noriyuki NAGATA  Nozomu YOKOYAMA  Tatsuyuki OSUGA  Noboru SASAKI  Keitaro MORISHITA  Mitsuyoshi TAKIGUCHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(3):378

To date, little is known about the prognostic significance of ultrasonographic findings in dogs with protein-losing enteropathy (PLE). The aim of this retrospective study was to examine the prognostic value of ultrasonographic findings in dogs with PLE. A total of 26 dogs with PLE were included: 20 dogs with chronic enteropathy and 6 dogs with gastrointestinal lymphoma. The presence of small intestinal dilatation was associated with shorter survival time in dogs with PLE (P=0.003). The presence of hyperechoic intestinal mucosal striations was associated with longer survival time in dogs with PLE (P=0.0085). The results of the current study indicate that the presence of small intestinal dilatation might be associated with poor prognosis in dogs with PLE.  相似文献