A synopsis of the parasites from cyprinid fishes of the genus Tribolodon in Japan (1908-2013)

1908～2013年の106年間に出版された文献に基づき,日本産ウグイ属魚類4種(ウグイTribolodon hakonensis,エゾウグイTribolodon sachalinensis,マルタTribolodon brandtii,ウケクチウグイTribolodon nakamuraii)の寄生虫に関する情報を2つのリスト(寄生虫-宿主リスト,宿主-寄生虫リスト)に整理して目録を作成した。寄生虫-宿主リストでは,44種の寄生虫と学名がまだ決定していない寄生虫の情報を,下記の高位分類群ごとに配列し,最新の学名,シノニム,寄生部位,地理的分布および報告者の情報を示した:繊毛虫類(2種:種小名まで決定している種数),ミクソゾア類(1種),吸虫類(18種),単生類(0種),条虫類(3種),線虫類(9種),鉤頭動物(2種),ヒル類(1種),軟体動物(1種),エラオ類(0種),カイアシ類(6種),ワラジムシ類(1種)。宿主-寄生虫リストでは,ウグイ属魚類4種の種ごとに,各寄生虫の学名と地理的分布を示した。魚種ごとに寄生虫の種数を示すと,ウグイ43種,エゾウグイ7種,マルタ6種,ウケクチウグイ1種で,ウグイから報告されている寄生虫数が最も多かった。

Four species of the cyprinid genus Tribolodon occur in Japan: big-scaled redfin T.hakonensis, Sakhalin redfin T. sachalinensis, Pacific redfin T. brandtii, and long-jawed redfin T. nakamuraii. Of these species, T. hakonensis is widely distributed in Japan and is important in commercial and recreational fisheries. Two species, T. hakonensis and T. brandtii, exhibit anadromy. In this paper, information on the protistan and metazoan parasites of the four species of Tribolodon in Japan is compiled based on the literature published for 106 years between 1908 and 2013, and the parasites, including 44 named species and those not identified to species level, are listed by higher taxon as follows: Ciliophora (2 named species), Myxozoa (1), Trematoda (18), Monogenea (0), Cestoda (3), Nematoda (9), Acanthocephala (2), Hirudinida (1), Mollusca (1), Branchiura (0), Copepoda (6), and Isopoda (1). For each taxon of parasite, the following information is given: its currently recognized scientific name, previous identification used for the parasite occurring in or on Tribolodon spp.; habitat (freshwater, brackish, or marine); site(s) of infection within or on the host; known geographical distribution in Japan; and the published source of each locality record. The highest number of the named parasite species was recorded from T. hakonensis (43), followed by T. sachalinensis (7), T. brandtii (6), and T. nakamuraii (1).