著者

Ken-Ichi Hayashi Michio Nagata

出版者

Carcinological Society of Japan

雑誌

Crustacean Research (ISSN:02873478)

巻号頁・発行日

vol.31, pp.73-90, 2002 (Released:2017-05-15)

参考文献数

60

被引用文献数

2 3

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During a taxonomic study of the snapping shrimp genus Alpheus from Japan and the Gulf of Thailand, it has been found that two species have been confounded under A. digitalis De Haan, 1844, which was originally described based on a single specimen possessing abnormal chelipeds. Differences between the two species are found in both morphology and coloration. Careful examination of published information of the holotype and supplemental material enable us to establish the true identity of A. digitalis. The new species, A. longiforceps, can be distinguished from A. digitalis by the more slender major chela with a sinuous, rather than convex, flexor margin, the longer male minor chela with a more elongate dactylus, and the possession of a single, rather than two, obliquely transverse white bands on the carapace and of a conspicuous dark brown spot on the lateral surface of the fourth abdominal tergum.

著者

Ichiro Furukawa Tomoe Ishihara Hiroshi Teranishi Shioko Saito Jun Yatsuyanagi Eriko Wada Yuko Kumagai Shiho Takahashi Takayuki Konno Hiroko Kashio Akihiko Kobayashi Naoki Kato Ken-ichi Hayashi Keisuke Fukushima Kazuhiko Ishikawa Kazumi Horikawa Akira Oishi Hidemasa Izumiya Takahiro Ohnishi Yoshiko Konishi Toshiro Kuroki

出版者

国立感染症研究所 Japanese Journal of Infectious Diseases 編集委員会

雑誌

Japanese Journal of Infectious Diseases (ISSN:13446304)

巻号頁・発行日

pp.JJID.2016.164, (Released:2016-08-31)

参考文献数

31

被引用文献数

25

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This study was undertaken to determine the prevalence, antimicrobial susceptibility, and genetic relatedness of Salmonella enterica subsp. enterica and Campylobacter spp. in poultry meat, and to analyze the association of genetic types of these bacteria with their geographical distribution and antimicrobial resistance profiles. Fifty-four and 71 of 100 samples were found to be contaminated with Salmonella and Campylobacter, respectively. Nine Salmonella serotypes were found, including S. enterica subsp. enterica serovar Infantis (33%), Schwarzengrund (12%), Manhattan (9%), and others. Campylobacter jejuni and C. coli were detected from 64 (64%) and 14 (14%) samples, respectively. S. enterica subsp. enterica exhibited a high frequency of resistance against tetracycline (78.3%) and streptomycin (68.3%). C. jejuni and C. coli isolates were resistant to sulfamethoxazole/trimethoprim (90.5%), nalidixic acid (47.3%), ampicillin (45.9%), and ciprofloxacin (40.5%). Cluster analysis was performed for the Salmonella isolates using PFGE and for the Campylobacter isolates with PFGE as well as comparative genomic fingerprinting. which were combined with the drug-resistance data to analyze with respect to the locations in which the poultry meat was produced. This analysis revealed that C. jejuni strains with a particular genotype and antimicrobial resistance profile are spreading in specific areas in Japan.