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水陸両生魚,ムツゴロウとトビハゼの消化管内細菌フロ-ラの性状


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タイトル: 水陸両生魚,ムツゴロウとトビハゼの消化管内細菌フロ-ラの性状
その他のタイトル: The Characteristics of Bacterial Flora in the Digestive Tracts of Mudskipper Fishes Boleophthalmus pectinirostris and Periophthalmus cantonensis
著者: 森井, 秀昭 / 笠間, 憲太郎
著者(別表記) : Morii, Hideaki / Kasama, Kentaro
発行日: 1990年10月
出版者: 長崎大学水産学部
引用: 長崎大学水産学部研究報告, v.68, pp.43-52; 1990
抄録: The physiological characteristics and the inhibitory effects of lower pH and bile on growth for bacterial flora of the gills and digestive tracts of mudskipper fishes Boleophthalmus pectinirostris and Periophthalmus cantonensis and mud on a mud flat were studied to discuss the primary factors which control the composition of the flora in the tracts. The percentage of bacterial strains decomposed amino acids was higher in Vibrio than in coryneforms, which were mainly isolated in the tracts. The percentage of the strains decomposed amino acids・protein was higher in Vibrio of the tracts especially intestine of P. cantonensis (animal food) than in that of B. pectinirostris (plant food), and moreover the pattern of decomposition of amino acids・saccharides was different between both the Vibrios. The percentage of the strains decomposed amino acids・protein・carbohydrates and the pattern of decomposition of amino acids・saccharides in Vibrio of the mud were similar to those in Vibrio of the intestine of P. cantonensis but not in Vibrio of the intestine of B. pectinirostris, and those had not significance between coryneforms of the gills, stomach, intestine and the mud. These facts suggested that Vibrio of the tracts are controled by food habits, Vibrio of the tracts of P. cantonensis is connected with feeding animal organic matters on the mud, and coryneforms are transient in the tracts. The inhibitory effects of bile were larger in Vibrio than in coryneforms, and in coryneforms for the effects of lower pH. These facts interpreted occupation of Vibrio in the intestine of both the fishes and of coryneforms in the stomach of B. pectinirostris which has a higher progressive stomach.
キーワード: 水陸両生魚 / mudskipper fish / ムツゴロウ / Boleophthalmus pectinirostris / トビハゼ / Periophthalmus cantonensis / 消化管 / digestive tract / 細菌フローラ / bacterial flora
URI: http://hdl.handle.net/10069/29898
ISSN: 05471427
資料タイプ: Departmental Bulletin Paper
原稿種類: publisher
出現コレクション:第68号

引用URI : http://hdl.handle.net/10069/29898

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