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本文报道了对泊于大连港的船舶,通过系统的调查发现蜚蠊三种,即德国小蠊,美洲大蠊和日本大蠊。其中德国小蠊为绝对优势种,并与美洲大蠊或日本大蠊有共同栖息现象。蜚蠊对船舶侵害率呈逐年递增趋势。国内船舶远高于外籍船舶。厨房、配餐间、餐厅是蜚蠊主要栖息场所;并有夏季迁移现象。蜚蠊侵害率及其密度与船舶卫生状况、船龄呈正相关;与载货种类也有一定关系。
This paper reports on three types of cockroaches, namely, German cockroaches, American cockroaches and Japanese cockroaches found by systematic investigation on ships moored in Dalian Port. Among them, Blattella germanica is the dominant species and has common habitat with American cockroach or Japanese cockroach. Cockroach on the ship infiltration rate showed an increasing trend year by year. Domestic ships are much higher than foreign ships. Kitchen, pantry, restaurant is the main habitat of cockroaches; and summer migration phenomenon. Cockroach invasion rate and its density and the ship health status, age was positively correlated; and the type of cargo is also a certain relationship.