Issn 0704-3716 11, 1983
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ISSN 0704-3716 Sciences 11, Canadian Translation of Fisheries and Aquatic No. 4999 Studies on Dibothriocephalus latus with special reference to its life history in Japan S. Eguchi Original title: Kosetsu retto jochu ni kansuru kenkyu, koto ni nippon ni okeru hon jochu no hatsuikushi ni tsuite In: Byorigaku Kiyo 3(1): 1-66, 1926 Original language: Japanese Available from: Canada Institute for Scientific and Technical Information National Research Council Ottawa, Ontario, Canada KlA 0S2 1983 116 typescript pages • DEPARTMENT OF THE SECRETARY OF STATE SECRÉTARIAT D'ÉTAT TRANSLATION BUREAU BUREAU DES TRADUCTIONS MULTILINGUAL SERVICES DIVISION DES SERVICES • CANADA DIVISION MULTILINGUES CrFk 1(cMi TRANSLATED FROM - TRADUCTION DE INTO - EN Japanese English AUTHOR - AUTEUR Sueo EGUCHI TITLE IN ENGLISH - TITRE ANGLAIS Studies on Dibothriocephalus latus With Special Reference to Its Life History in Japan TITLE IN FOREIGN LANGUAGE (TRANSLITERATE FOREIGN CHARACTERS) TITRE EN LANGUE ÉTRANGÉRE (TRANSCRIRE EN CARACTLRES ROMAINS) Kosetsu retto jochu ni kansuru kenkyu, koto ni nippon ni okeru hon jochu no hatsuikushi ni tsuite REFERENCE IN FOREIGN LANGUAGE (NAME OF BOOK OR PUBLICATION) IN FULL. TRANSLITERATE , FOREIGN CHARACTERS. RÉFÉRENCE EN LANGUE ÉTRANGÉRE (NOM DU LIVRE OU PUBLICATION), AU COMPLET, TRANSCRIRE EN CARACTèRES ROMAINS. Byorigaku Kiyo glii■REFERENCE IN ENGLISH - RÉFÉRENCE EN . ANGLAIS Bulletin of Pathology, Nagoya PAGE NUMBERS IN ORIGINAL PUBLISHER - ÉDITEUR DATE OF PUBLICATION NUMÉROS DES PAGES DANS DATE DE PUBLICATION L'ORI GINAL 1-66 YEAR ISSUE NO. VOLUME PLACE OF PUBLICATION ANNÉE NUMÉRO NUMBER OF TYPED PAGES LIEU DE PUBLICATION NOMBRE DE PAGES DACTYLOGRAPHIÉES Japan 1926 3 1 115 NO. REQUESTING DEPARTMEN_T TRANSLATION BUREAU 1155992 MINISTÉRE.CLIENT Fisheries and Oceans NOTRE DOSSIER N0 RR BRANCH OR DIVISION SIPB TRANSLATOR (INITIALS) DIRECTION OU DIVISION TRADUCTEUR (INITIALES) PERSON REQUESTING A. T. Reid DEMANDé PAR AUG AOUT 1 1983 YOUR NUMEIER VOTRE DOSSIER N') DATE OF REQUEST 18-10-82 UNEDITED TRA!,\ISLATioN ("DATE DE LA DEMANDE Fos' R infarnin':ion s:-,t3kn1cnt SOS.200-10.6 (REV. 2/58) 7530-21-029-6333 4 4 Secretary Secrétariat 111 of State d'État MULTILINGUAL SERVICES DIVISION — DIVISION DES SERVICES MULTILINGUES • TRANSLATION BUREAU BUREAU DES TRADUCTIONS clients No.—N° du client Department — Ministère Division/Bramb — Division/Direction City — Ville Fisheries and Oceans SIPB Ottawa Bureau No.—No du bureau Language — Langue Translator (Initials) — Traducteur (Initiales) 1155992 Japanese RR AAOLU jGT -1.1983 STUDIES ON DIBOTHRIOCEPHALUS LATUS WITH SPECIAL REFERENCE TO ITS LIFE HISTORY IN JAPAN Sueo EGUCHI, Bachelor of Medicine (Aichi) (Intern, Department of Pathology, Aichi Medical College) Table of Contents Introduction Part I. The Distribution of D. latus and Some Statistical Observations Concerning This Tapeworm Chapter 1. The Distribution and Incidence of D. latus [Infection] in Europe and America Chapter 2. The Distribution of D. latus in Japan Chapter 3. Statistical Observations Concerning the Victims of D. latus Infection in Gifu Prefecture Section 1. Classification by Year Section 2. The Geographical Distribution of Victims of D. latus Infection in Gifu Prefecture and Its Relationship to the Distribution of Fish Section 3. Classification by Age Section 4. Classifications by Sex and by Occupation Section 5. Results of Examinations of Stools From Students in the Takayama Area of Gifu Prefecture Chapter 4. Summary of Part I Part II. Studies on the Second Intermediate Hosts of D. latus and Its Plerocercoids Chapter 1. The Literature on the Second Intermediate Hosts of D. latus _Section 1. History of the Discovery of Second Intermediate Hosts for D. latus and the Second Intermediate Hosts That Have Been Discovered Abroad Section 2. The Second Intermediate Hosts That Have Been Discoyered • [for D. latus] in Japan SEC 5-25 (Rev. 81/11) ■ OZ• V TRADUCiv..h• " • „ Canard Page 2 Chapter 2. Other Observations on the Second Intermediate Hosts [of D. latus] Section 1. Investigation of Fishes From the Jintsu-gawa (A) Investigation of Masou Salmon (B) Investigation of Fishes Other Than Masou Salmon Section 2. Investigation of Fishes From the Shirakawa River, With Special Reference to Masou Salmon Section 3. Investigation of Fishes From the Kiso-gawa, With Special Reference to Masou Salmon Section 4. Investigations of Salmons From Hokkaido and the Tone-gawa Section 5. Summary of Chapter 2 Chapter 3. Morphological Observations on Plerocercoids Section 1. The Morphology of Plerocercoids Section 2. The Site of Plerocercoids' Parasitization of Masou Salmon Section 3. The State of Parasitization of Plerocercoids Within the Body of the Second Intermediate Host Postscript. Tissue Changes That Take Place in the Host As a Result of Parasitization by Plerocercoids Chapter 4. Biological Observations Concerning [D. latus] Plerocercoids, Particularly the Resistance Exhibited by Them Part III. The Growth of D. latus Plerocercoids in the Definitive Host Chapter 1. Literature on the Definitive Hosts of D. latus Chapter 2. Experimental Ingestion of Plerocercoids Obtained From Masou Salmon Caught in the Jintsu-gawa Section 1. Experimental Materials and Test Animals Section 2. Results of Ekperiments in 1922 Section 3. Results of Experiments in 1923 Section 4. Results of Experiments in 1924 Section 5. Results of Experiments in 1925 Section 6. Summary of Experiments Chapter 3. Growth of D. latus Tapeworms and Their Life-span Within the Body of Their Definitive Host 111› Chapter 4. The Author's Observation of Cases of Animals That Hire -Been Naturally Parasitized by D. latus Page 3 Chapter 5. Summary of Part III (With Special Reference to the Definitive Hosts of D. latus) Part IV. Experimental Studies on the First Intermediate Hosts of D. latus Chapter 1. History of. Research on Whether There Is a First Intermediate Host of D. latus Chapter 2. Cultivation and Growth of [D. lotus] Eggs Chapter 3. Experiments To Determine Whether [D. latus] Has a First Intermediate Host, With Special Emphasis on the Growth of the Procercoid Within the Body of the First Intermediate Host Section 1. Experimental Materials and Methods Section 2. Experiments on the Ingestion of Six-hooked Larvae by Fish Section 3. Experiments on the Interrelationships Between Aquatic Animals (Other Than Cyclops) and Six-hooked Larvae [of D. lotus] Section 4. Cyclops in Japan Section 5. Experiments on the Interrelationship Between Cyclops and Six-hooked Larvae [of D. lotus] Chapter 4. Experiments on the Migration of D. latus Larvae From Their First to Their Second Intermediate Host Section 1. Experimental Materials and Methods Section 2. Experimental Results Section 3. Summary of Experiments Chapter 5. Summary of Part IV (With Special Reference to the Life History of D. latus in Japan) Overall Summary References Explanations of Plates O • Page 4 Introduction Research on parasitology began in the middle of the 18th century, with the foundations of this field being laid in the 18th and 19th centuries by such workers as M iller, Bremser, Baras, and Rudolphi. In the middle of the 19th century a number of parasites were discovered one after the other. By this time, too the first studies on the life histories of parasites had begun to appear, and the general outlines of the life histories of flukes (Trematoda) and tapeworms (Cestoda) in particular had been worked out. Moreover, from the end of the 19th century to the present the field of parasitology underwent further development as some of the hazier problems were cleared up by new studies that were carried out by several researchers. As a result, it can now be said that the field of parasitology has gradually developed to the point where [the major issues] are about to be clarified. /P. 3 Research on tapeworms that was undertaken by Küchenmeister, Leuckart, etc., around 1850 yielded new information about the relationships between adult tapeworms and bladder worms (metacercoids) or cysticercoids, while even more detailed studies were published by van Beneden and Siebold, among others. In 1883 Braun discovered Dibothriocephalus latus plerocercoids in the northern pike Esox lucius, thus decisively rebutting the objections that had been frequently raised by Knoch, Küchenmeister and others with respect to the infection route of this parasite. Since that discovery more than 10 different fish species have been identified (by Grassi, Parona, Beneden, Zschokke, Sievers, Lemeberg, Babes, Ciurca*, etc.) as intermediate hosts of D. latus. At this time, too, a number of questions concerning the existence of a first intermediate host for D. latus O remained unresolved, being debated over and over with no solution in sight-.- - While *Translator's note: Inference; the text says "Ciurca Joan". Page 5 being fully aware of his poor aptitude for this task, the present author has been intrepid enough to attempt to determine the first intermediate host of D. latus and to engage in research aimed at elucidating the life history of this parasite. Meanwhile, Janicki and Rosen have been studying this topic for many years now in Switzerland, and the results of their research, published in 1919, indicated their view that Cyclops sternuus and Diaptomus gracilis are the first intermediate hosts of D. latus. This study has shed much light on the life history of this tapeworm. In spite of the fact that D. latus has extended its range into Japan, one cannot help but feel totally alone in studying this parasite in this country. The only other Japanese publication on this subject is an 1886 paper by Dr. Ijima that confirmed that Oncorhynchus perryi salmon from the Tone-gawa had been parasitized by larval tapeworms, that is, by plerocercoids. Now, since the fish species that serve as second intermediate hosts for D. latus in Europe and the United States - i.e., species such as Esox lucius and the burbot Lota vulgaris - are completely absent from Japan, it follows that the secondary intermediate hosts used by this parasite are utterly different here than in these other regions. Consequently, it has to be stated that the life history of D.