日本産ウグイ属魚類の寄生虫目録 : 補足（2016年）

1908年以降に出版された文献に基づき，2013年に日本産ウグイ属魚類4種（ウグイTribolodon hakonensis，エゾウグイT. sachalinensis，マルタT. brandtii，ウケクチウグイT. nakamuraii）の寄生虫に関する情報を整理した目録を出版した。今回，その後に出版された情報と2013年の目録に収録されなかった情報を加えて，この目録を補足した。宿主に関して，従来のマルタは2015年に2亜種（マルタT. brandtii maruta，ジュウサンウグイT. brandtii brandtii）に分けられたので，各亜種における寄生虫の情報を整理した。本目録では，新たに追加した6種の寄生虫（吸虫類2種，単生類1種，線虫類2種，鉤頭虫類1種）を含む15種の寄生虫に関する情報を寄生虫－宿主リストに整理して示した。今回の作業により，1908～2015年の108年間にわが国のウグイ属魚類からは48名義種の寄生虫（繊毛虫類2種，ミクソゾア類1種，吸虫類20種，単生類1種，条虫類3種，線虫類9種，鉤頭動物3種，ヒル類1種，軟体動物1種，カイアシ類6種，ワラジムシ類1種）が報告されていたことが分かった。種まで同定された寄生虫の種数を魚種別に示すと，ウグイから48種，エゾウグイから8種，マルタから4種，ジュウサングイから3種で，ウグイから最も多くの寄生虫が報告されていた。ウケクチウグイからは1未同定種のみが記録されていた。The synopsis of the parasites from cyprinids of the genus Tribolodon in Japan was published in 2013 and is here updated and supplemented using the recently published papers and those not cited before. In this updated version, information on 15 species, including six newly added species, is compiled as Parasite-Host List. For 108 years from 1908 to 2015, a total of 48 nominal species of parasites of the following taxa were reported: Ciliophora (2 species), Myxozoa (1), Trematoda (20), Monogenea (1), Cestoda (3), Nematoda (9), Acanthocephala (3), Hirudinida (1), Mollusca (1), Copepoda (6), and Isopoda (1). Those nominal species and parasites not identified to species level are listed in Host-Parasite List: 48, eight, four, and three nominal species were from T. hakonensis, T. sachalinensis, T. brandtii maruta, and T. brandtii brandtii, respectively, and one unidentified species was from T. nakamuraii

日本産ウナギ類の寄生虫目録：追補改定版（1915-2017年）

1915-2017年の103年間に出版された文献に基づき，日本産ウナギ属魚類3種（ニホンウナギ Anguilla japonica，オオウナギ Anguilla marmorata，ヨーロッパウナギ Anguilla anguilla）と日本に輸入されたAnguilla australis 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。宿主のニホンウナギとオオウナギは在来種であり，ヨーロッパウナギはシラスウナギとして輸入され養殖された個体，Anguilla australis はオーストラリアから輸入された個体である。本目録は2007年に出版した同名目録の追補改定版である。本目録には，54名義種の寄生虫（繊毛虫類6種，微胞子虫類1種，ミクソゾア類6種，吸虫類12種，単生類8種，条虫類3種，線虫類7種，鉤頭虫類6種，ヒル類3種，二枚貝類1種，カイアシ類1種）に加えて，学名がまだ決定していない寄生虫の情報が含まれる。寄生虫－宿主リストでは，各寄生虫は高位分類群ごとに配列され，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が示されている。上記54名義種のうち，ニホンウナギから50種，オオウナギから6種，ヨーロッパウナギから9種，Anguilla australis から1種の寄生虫が報告されていた。単生類のGyrodactylus anguillae，Gyrodactylus nipponensisおよびPseudodactylorgyrus mundayi，条虫類のBothriocephalus claviceps，線虫類のRaphidascaris acus は海外から持ち込まれたと推察されており，残りの49名義種が日本にもともと分布するものである。ニホンウナギから報告された寄生虫のうち，9名義種（Lecithochrium musculus, Proctotrematoides pisodontophidis, Tubulovesicula anguillae［ 吸虫類］, Gyrodactylus nipponensis, Pseudodactylogyrus kamegaii［ 単生類］, Nybelinia angullicola［ 条虫類］, Cucullanus filiformis, Heliconema anguillae［ 線虫類］, Limnotrachelobdella okae［ ヒル類］）は海産または汽水産であり，海ウナギや河口ウナギとして知られる個体がそれら寄生虫の宿主になっていると考えられる。Information on the protistan and metazoan parasites of four species of eels (the Japanese eel Anguilla japonica, the giant mottled eel Anguilla marmorata, the European eel Anguilla anguilla, and the short-finned eel Anguilla australis) in Japan is summarized in the Parasite-Host and Host-Parasite lists, based on the literature published for 103 years between 1915 and 2017. This is a revised and updated version of the checklist published in 2007. Anguilla japonica and A. marmorata are native to Japan, whereas A. anguilla and A. australis are introduced species from Europe and Australia, respectively. The parasites, including 54 nominal species and those not identified to species level, are listed by higher taxa as follows: Sarcomastigophora (no. of nominal species: 0), Ciliophora (6), Microspora (1), Myxozoa (6), Trematoda (12), Monogenea (8), Cestoda (3), Nematoda (7), Acanthocephala (6), Hirudinida (3), Bivalvia (1), and Copepoda (1). For each parasite species listed, the following information is given: its currently recognized scientific name, any original combination, synonym(s), or other previous identification used for the parasite from Japanese eels; habitat (freshwater, brackish, or marine); site(s) of infection within or on the host; known geographical distribution in Japanese waters; and the published source of each locality record. Of the 54 nominal species of parasites listed, 50 are from A. japonica, six from A. marmorata, nine from A. anguilla, and one from A. australis. Five species, viz., Gyrodactylus anguillae, Gyrodactylus nipponensis, Pseudodactylogyrus mundayi (Monogenea), Bothriocephalus claviceps (Cestoda), and Raphidascaris acus (Nematoda), have been regarded as introduced parasites from other countries, and the remaining 49 nominal species are indigenous parasites of Japan. Nine nominal species of marine and/or brackish-water origin, viz., Lecithochrium musculus, Proctotrematoides pisodontophidis, Tubulovesicula anguillae (Trematoda), Gyrodactylus nipponensis, Pseudodactylogyrus kamegaii (Monogenea), Nybelinia angullicola (Cestoda), Cucullanus filiformis, Heliconema anguillae (Nematoda), and Limnotrachelobdella okae (Hirudinida), have been reported from A. japonica. Individiduals of A. japonica known as “sea eels” and “estuarine eels” inhabiting coastal marine and riverine brackish waters are considered to serve as hosts for those marine and/or brackish-water parasites

Isoparorchis hypselobagri (Trematoda: Isoparorchiidae) from freshwater fishes in western Japan, with a review of its host-parasite relationships in Japan (1915-2013)

Specimens of Isoparorchis hypselobagri (Billet, 1898) were collected from the following freshwater fishes in western Japan: Anguilla japonica (Anguillidae) from Shimane and Ehime prefectures; Silurus asotus (Siluridae) from Hiroshima and Yamaguchi prefectures; Acanthogobius flavimanus (Gobiidae) from Shimane Prefecture; Candidia temminckii (Cyprinidae), Pungtungia herzi (Cyprinidae), Rhinogobius fluviatilis (Gobiidae), and Rhinogobius sp. (Gobiidae) from Hiroshima Prefecture. The collection of I. hypselobagri from A. japonica, A. flavimanus, R. fluviatilis, and Rhinogobius sp. represents new host records, and the parasite is reported for the first time from Hiroshima, Yamaguchi, and Ehime prefectures. Host-parasite relationships of I. hypselobagri infecting Japanese freshwater fishes are reviewed based on the literature published in 1915-2013

Salvelinema salmonicola (Nematoda: Cystidicolidae) from lake-resident salmonids in western Honshu, Japan

Specimens of the cystidicolid nematode Salvelinema salmonicola (Ishii, 1916) were collected from the swimbladder of amago salmon Oncorhynchus masou ishikawae and brown trout Salmo trutta in Lake Takase, Yamaguchi Prefecture, western Honshu, Japan. This is the first record of S. salmonicola from Yamaguchi Prefecture and brown trout in Japan, and also the third record of the species from lake-resident salmonids in Japan

CVIT expert consensus document on primary percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI) in 2018

While primary percutaneous coronary intervention (PCI) has significantly contributed to improve the mortality in patients with ST segment elevation myocardial infarction even in cardiogenic shock, primary PCI is a standard of care in most of Japanese institutions. Whereas there are high numbers of available facilities providing primary PCI in Japan, there are no clear guidelines focusing on procedural aspect of the standardized care. Whilst updated guidelines for the management of acute myocardial infarction were recently published by European Society of Cardiology, the following major changes are indicated; (1) radial access and drug-eluting stent over bare metal stent were recommended as Class I indication, and (2) complete revascularization before hospital discharge (either immediate or staged) is now considered as Class IIa recommendation. Although the primary PCI is consistently recommended in recent and previous guidelines, the device lag from Europe, the frequent usage of coronary imaging modalities in Japan, and the difference in available medical therapy or mechanical support may prevent direct application of European guidelines to Japanese population. The Task Force on Primary Percutaneous Coronary Intervention of the Japanese Association of Cardiovascular Intervention and Therapeutics (CVIT) has now proposed the expert consensus document for the management of acute myocardial infarction focusing on procedural aspect of primary PCI

CVIT expert consensus document on primary percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI) in 2018

While primary percutaneous coronary intervention (PCI) has significantly contributed to improve the mortality in patients with ST segment elevation myocardial infarction even in cardiogenic shock, primary PCI is a standard of care in most of Japanese institutions. Whereas there are high numbers of available facilities providing primary PCI in Japan, there are no clear guidelines focusing on procedural aspect of the standardized care. Whilst updated guidelines for the management of acute myocardial infarction were recently published by European Society of Cardiology, the following major changes are indicated; (1) radial access and drug-eluting stent over bare metal stent were recommended as Class I indication, and (2) complete revascularization before hospital discharge (either immediate or staged) is now considered as Class IIa recommendation. Although the primary PCI is consistently recommended in recent and previous guidelines, the device lag from Europe, the frequent usage of coronary imaging modalities in Japan, and the difference in available medical therapy or mechanical support may prevent direct application of European guidelines to Japanese population. The Task Force on Primary Percutaneous Coronary Intervention of the Japanese Association of Cardiovascular Intervention and Therapeutics (CVIT) has now proposed the expert consensus document for the management of acute myocardial infarction focusing on procedural aspect of primary PCI

日本産ウグイ属魚類の寄生虫目録(1908-2013年)

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)

Salvelinema salmonicola (Nematoda, Cystidicolidae) : Heavy Infection in Lacustrine Sockeye Salmon Oncorhynchus nerka from Northern Japan, with plication of the Host's Feeding Habits

Six hundred fifteen specimens of the cystidicolid nematode Salvelinema salmonicola (Ishii, 1916) were found in the swimbladder of a sockeye salmon Oncorhynchus nerka from Lake Toya, central Hokkaido, northern Japan. The stomach of this fish contained many, benthic gammaridean amphipods Jesogammarus jesoensis, which are most likely to serve as an intermediate host for S. salmonicola in the lake. While sockeye salmon are known to exclusively prey on small fish when the zooplankton biomass remains low in this locality, the present findings of S. salmonicola and J. jesoensis indicate that these salmon feed on benthic amphipods as well and get infected with the nematode