Moravec F, Nagasawa K, Tanaka Y, Narita T
Institute of Parasitology, Academy of Sciences of the Czech Republic, Ceské Budĕjovice, Czech Republic.
Dis Aquat Organ. 1998 Mar 5;32(2):157-60. doi: 10.3354/dao032157.
Advanced third-stage larvae (body length 2.92 to 5.49 mm) of the fish nematode Raphidascaris biwakoensis Fujita, 1928 were found as frequent parasites of the leptodorid cladoceran Leptodora kindti (Focke) in Lake Biwa, southern Honshu, Japan, in July 1995. This is the first confirmed record of the L3 of this nematode species from an invertebrate host, showing that L. kindti may serve as a true intermediate host to R. biwakoensis, probably in addition to lower aquatic vertebrates. The high degree of prevalence of the nematode larvae in L. kindti in Lake Biwa indicates that this plankton crustacean is an important source of infection with R. biwakoensis for fish definitive and paratenic hosts.
1995年7月，在日本本州岛南部的琵琶湖，鱼类线虫双湖绕体线虫（Raphidascaris biwakoensis Fujita，1928）的晚期第三期幼虫（体长2.92至5.49毫米）被发现是大型枝角类多肢秀体溞（Leptodora kindti (Focke)）的常见寄生虫。这是该线虫物种第三期幼虫首次从无脊椎动物宿主中得到确认的记录，表明多肢秀体溞可能是双湖绕体线虫真正的中间宿主，或许除了低等水生脊椎动物之外。琵琶湖多肢秀体溞中线虫幼虫的高感染率表明，这种浮游甲壳动物是双湖绕体线虫对鱼类终末宿主和转续宿主感染的重要来源。
