Hidetoshi Saitou

Last Updated :2026/01/08

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Associate Professor
E-mail
saitohiroshima-u.ac.jp
Self-introduction
I am studying ecological research on polychaetes and shrimps used as fishing baits. In particular, I am conducting the effect of alien species on native species, and the elucidation of life history of rare native species for the purpose of the conservation and effective utilization.

Basic Information

Academic Degrees

  • Doctor of Agriculture, Hiroshima University
  • Master of Agriculture, Hiroshima University

Educational Activity

  • [Bachelor Degree Program] School of Applied Biological Science : Department of Applied Biological Science : Integrative Hydrospheric Science Program
  • [Master's Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Bioresource Science
  • [Doctoral Program] Graduate School of Integrated Sciences for Life : Division of Integrated Sciences for Life : Program of Bioresource Science

Research Fields

  • Agricultural sciences;Applied aquatic science;Aquatic bioproduction science

Research Keywords

  • Intertidal flat
  • *
  • attaching organisms
  • Benthos
  • oyster raft
  • Foraging Bhavior
  • artificial intertidal sand flat

Educational Activity

Course in Charge

  1. 2025, Liberal Arts Education Program1, 1Term, Sport fishing and science: fishes-human beings interactions
  2. 2025, Undergraduate Education, 1Term, Environmental Sciences for Bioproduction
  3. 2025, Undergraduate Education, Intensive, Laboratory Work in General Biology II
  4. 2025, Undergraduate Education, 3Term, Research Front of Bioresource Science
  5. 2025, Undergraduate Education, 1Term, Statistics in Biology
  6. 2025, Undergraduate Education, Intensive, Statistics in Biology
  7. 2025, Undergraduate Education, 2Term, Introduction to Hydrospheric BiodiversityII
  8. 2025, Undergraduate Education, Intensive, Laboratory Work in Hydrospheric BiologyIII
  9. 2025, Undergraduate Education, 1Term, Exercises in Integrative Hydrospheric ScienceI
  10. 2025, Undergraduate Education, 1Term, Hydrospheric EcologyII
  11. 2025, Undergraduate Education, Second Semester, Graduation Thesis I
  12. 2025, Undergraduate Education, First Semester, Graduation Thesis II
  13. 2025, Undergraduate Education, Second Semester, Graduation Thesis III
  14. 2025, Undergraduate Education, Intensive, (AIMS) Fish Production
  15. 2025, Undergraduate Education, Intensive, Fish Production
  16. 2025, Undergraduate Education, Intensive, (AIMS)Plankton Biology
  17. 2025, Undergraduate Education, Intensive, Plankton Biology
  18. 2025, Graduate Education (Master's Program) , 1Term, Exercises in Bioresource Science A
  19. 2025, Graduate Education (Master's Program) , 2Term, Exercises in Bioresource Science A
  20. 2025, Graduate Education (Master's Program) , 3Term, Exercises in Bioresource ScienceB
  21. 2025, Graduate Education (Master's Program) , 4Term, Exercises in Bioresource ScienceB
  22. 2025, Graduate Education (Master's Program) , Year, Research for Academic Degree Dissertation in Bioresource Science
  23. 2025, Graduate Education (Master's Program) , Year, Research for Academic Degree Dissertation in Bioresource Science
  24. 2025, Graduate Education (Master's Program) , 1Term, Aquatic Ecology
  25. 2025, Graduate Education (Doctoral Program) , Year, Research for Academic Degree Dissertation in Integrated Life Sciences

Research Activities

Academic Papers

  1. Multiple Infestation of Ectoparasitic Isopods Tachaea chinensis on the Freshwater Shrimp Palaemon paucidens in Shimane Prefecture Japan, ZOOLOGICAL STUDIES, 64, 20251202
    Link to Paper Search Results by DOI
  2. Genetic diversity of freshwater shrimp Palaemon paucidens around Lake Biwa, Japan with the invasion of foreign genotypes, JOURNAL OF ASIA-PACIFIC BIODIVERSITY, 18(2), 399-405, 20250601
    Link to Paper Search Results by DOI
  3. Appearance of exotic shrimp Palaemon sinensis (Sollaud, 1911) and other freshwater shrimps before and after the 2018 extreme flood in western Japan, BioInvasions Records, 13(1), 183-194, 20240122
    Link to Paper Search Results by DOI
  4. First description of male from parthenogenesis in a chironomid species Paratanytarsus grimmii (Schneider, 1885) (Diptera: Chironomidae), ZOOTAXA, 5566(3), 594-600, 20250109
    Link to Paper Search Results by DOI
  5. Thermal tolerance of larvae of seven Chironomus species and up-regulation of heat shock protein-coding genes in Chironomus sulfurosus, LIMNOLOGY, 26(1), 125-133, 202501
    Link to Paper Search Results by DOI
  6. Genetic relationships between and within some Malawian cichlid genera, JOURNAL OF FISH BIOLOGY, 105(3), 931-943, 202409
    Link to Paper Search Results by DOI
  7. Immunomodulation and Humoral Immune Response in Teleost Immunized with Aeromonas-Derived Antigenic Extracellular Bioactive Molecules, INDIAN JOURNAL OF MICROBIOLOGY, 64(3), 1110-1122, 202409
    Link to Paper Search Results by DOI
  8. Occurrence of old marbled rockfish Sebastiscus marmoratus in Aki-nada of the Seto Inland Sea, Japan, Nippon Suisan Gakkaishi, 90(5), 461-463, 20240915
    Link to Paper Search Results by DOI
  9. Immunomodulatory effects of Mallotus japonicus extract on innate Immune response in Heterotilapia buttikoferi infected with Aeromonas hydrophila., The Microbe, 20240514
    Link to Paper Search Results by DOI
  10. Host range differences between two species of freshwater horsehair worm (Nematomorpha: Chordiidae) Chordodes japonensis and C. formosanus in, PARASITOLOGY INTERNATIONAL, 99, 202404
    Link to Paper Search Results by DOI
  11. Mountain masses as a determinant to genetic structure of char distributed in the Chugoku region, Japan, ENVIRONMENTAL BIOLOGY OF FISHES, 107(1), 75-90, 202401
    Link to Paper Search Results by DOI
  12. Metagenomic analysis of gut microbiome from tilapia species across several regions in Japan, AQUACULTURE, 576, 20231115
    Link to Paper Search Results by DOI
  13. Host selection and potential predation in the host-parasite interaction between the isopod Tachaea chinensis and freshwater host species, INTERNATIONAL JOURNAL FOR PARASITOLOGY-PARASITES AND WILDLIFE, 21, 59-68, 202308
    Link to Paper Search Results by DOI
  14. Host Size Selection in the Ectoparasite Tachaea chinensis (Isopoda: Corallanidae) Under Laboratory Conditions, ZOOLOGICAL SCIENCE, 40(3), 197-202, 202306
    Link to Paper Search Results by DOI
  15. Molecular phylogeny of Japanese marine Tanytarsini chironomids (Chironomidae: Chironominae), GENETICA, 150(5), 263-272, 202210
    Link to Paper Search Results by DOI
  16. Size relationship of the ectoparasite Tachaea chinensis in the host shrimp Palaemon paucidens From Shiga Prefecture, Japan, Zoological science, 39, 202208
  17. Genetic differences among the species of genus Aulonocara and related genera of Malawian cichlids, Ecological Genetics and Genomics, 23, 202204
  18. 16S rRNA Gene Sequence Identification of Cultivable-Bacterioplankton Between Ambient Water and Gastrointestinal Tract (GIT) of Resident Teleost, INDIAN JOURNAL OF MICROBIOLOGY, 62(2), 187-194, 202206
    Link to Paper Search Results by DOI
  19. Antibacterial activity of Mallotus japonicus (LF) Muller Argoviensis on growth of Aeromonas hydrophila, A. salmonicida, Edwardsiella tarda and Vibrio anguillarum, JOURNAL OF APPLIED MICROBIOLOGY, 132(1), 298-310, 202201
    Link to Paper Search Results by DOI
  20. ★, Population genetics of the non-native freshwater shrimp Palaemon sinensis (Sollaud, 1911) in Japan based on mitochondrial 16S rRNA sequence analysis, AQUATIC INVASIONS, 16(4), 710-720, 202111
    Link to Paper Search Results by DOI
  21. Morphological divergence within the largest genetically consistent group of wild Tilapia, ENVIRONMENTAL BIOLOGY OF FISHES, 104(5), 597-613, 202105
    Link to Paper Search Results by DOI
  22. Transcriptome analysis of Chironomus sulfurosuslarvae living in acidic environments: Insights into molecular mechanisms for acid tolerance, Journal of Insect Physiology, 2021
  23. Population genetics and taxonomic signatures of wild Tilapia in Japan based on mitochondrial DNA control region analysis, HYDROBIOLOGIA, 847(6), 1491-1504, 202003
    Link to Paper Search Results by DOI
  24. An association between head-spot types and genetic types in char distributed in the Chugoku region, Japan, ENVIRONMENTAL BIOLOGY OF FISHES, 103(4), 339-347, 202004
  25. Genetic relationships of cichlid fishes from Lake Malawi based on mitochondrial DNA sequences, LIMNOLOGY, 21(1), 151-163, 202001
  26. Population Dynamics of Lancelet Branchiostoma japonicum in the Seto Inland Sea, Japan, Zoological Science, 37(4), 331-337, 20200801
  27. Fundamental studies on acid-tolerant chironomids in Japan., Limnology, 20(1), 101-107, 201901
  28. Seasonal occurrence of the alien freshwater shrimp Palaemon sinensis (Sollaud, 1911) in lower reaches of a river in western Japan, BioInvasions Records, 8(2), 369-378, 201905
  29. Effect of newly established regulations of import quarantine on supply of alien palaemoid shrimp Palaemon sinensis in Japan, Nippon Suisan Gakkaishi, 201801
  30. A new species of Tanytarsus van der Wulp, 1874 (Diptera: Chironomidae) and the first Japanese record of Tanytarsus ovatus Johannsen, 1932 with DNA barcodes., Zootaxa, 4422(2), 591, 201803
  31. Tachaea chinensis (Isopoda: Corallanidae), an ectoparasite of freshwater shrimps and prawns, from western Japan, with a list of its known collection localities and hosts, Crustacean Research, 47, 73-88, 20180928
  32. Occurrence of the exotic freshwater shrimp Palaemon sinensis in central Hiroshima Prefecture, Japan, FISHERIES SCIENCE, 83(5), 837-843, 201709
    Link to Paper Search Results by DOI
  33. Distribution of the invasive freshwater shrimp Palaemon sinensis (Sollaud, 1911) in rivers of Hiroshima Prefecture, western Japan, BioInvasions Records, 5, 93-100, 20160321
  34. Usefulness of chironomid larvae as physicochemical and biological indicators., Bulletin of the Hroshima University Museum, 6, 7-13, 2014
  35. Fishing bait worm supplies in Japan in relation to their physiological traits, Memoirs of Museum of Victoria, 71, 279-287, 201412
  36. Genetic relationship among lancelet populations in Seto Inland Sea inferred from mitochondrial DNA sequences, Bulletin of the Hiroshima University Museum, 5, 1-6, 201312
  37. Composition of subspecies, head spot types and genetic types of charr distributed in the Hino River, Japa, Biospere Science, 51, 1-8, 2012
  38. Seasonal variations in dorsal muscle constituents of wild black sea bream Acanthopagrus schlegelii in Hiroshima Bay, Western Japan, NIPPON SUISAN GAKKAISHI, 77(6), 1034-1042, 201111
    Link to Paper Search Results by DOI
  39. Distribution of two subspecies of white-spotted Salvelinus leucomaenis imbrius and S. l. pluvius, in the rivers flowing into the Sea of Japan, and their genetic relationships, based on mitochondrial DNA sequence, Bulletin of the Hroshima University Museum, 3, 23-30, 2011
  40. Chironomidae collected at the seashore and estuarine in Japan, Medical Entomology and Zoology, 62, 249-270, 2011
  41. Estimation of geographical limits between two subspecies of white-spotted charr, Salvelinus leucomaenis imbrius and S. l. pluvius, on the basis of RAPD analysis, Biosphere science, 50, 15-23, 2011
  42. Reproductive biology of the highly commercial polychaetes in the Suez Canal, Journal of the Marine Biological Association of the United Kingdom, 90(2), 281-290, 201003
    Link to Paper Search Results by DOI
  43. Problems associated with the recovery on landings of black sea bream (Acanthopagrus schlegelii) intensively released in Hiroshima Bay, Japan, Proceedings of the 13th French-Japanese Oceanography Symposium Springer Science, 37-40, 2010
  44. ★, Temporal and spatial dynamics of a lower-intertidal lancelet population in the Seto Inland Sea, Japan., Zoological Science, 26, 550-556, 2009
  45. ★, Effect of predation of fishes on oyster spats in Hiroshima Bay, Nippon Suisan Gakkaishi, 74(5), 809-815, 200809
  46. Renewal of genetic composition of a lancelet, Branchiostoma belcheri, in the Seto Inland Sea, Japan, Zoological Science, 23, 375-381, 200604
  47. Variations in body size of the lancelet Branchiostoma belcheri at different depths in the Seto Inland Sea:effect of food supply on the growth rate, Zoological Science, 22, 1181-1189, 200504
  48. ★, Time and energetic costs of feeding on different sized prey by predatory polychaete Halla okudai (Imajima), Journal of Experimental Marine Biology and Ecology, 311, 223-232, 2004
  49. Growth and age structure of the lancelet Branchiostoma belcheri in the Seto Inland Sea, in relation to water temperature., Benthos Research, 58, 105-112, 200306
  50. Effect of experience on prey species selection by the bivalve feeder Halla okudai (Polychaeta : Lysaretidae), Marine and Freshwater Behaviour and Physiology, 36(2), 67-76, 200306
    Link to Paper Search Results by DOI
  51. Genetical relationships among some populations of alancelet, Branchiostoma belcheri, in the western Japan, Benthos Research, 58, 113-120, 2003
  52. ★, Description of a new species of Armandia (Polychaeta : Opheliidae) from western Kyushu, Japan, with character variations, Journal of Natural History, 34(11), 2029-2043, 200304
    Link to Paper Search Results by DOI
  53. Interaction between searching cost and growth of the bivalve-feeder Halla okudai under rearing conditions, in relation to prey size, Fisheries Science, 66(5), 908-914, 2000
    Link to Paper Search Results by DOI
  54. Interaction between handling cost and growth of the bivalve-feeder Halla okudai under rearing conditions, in relation to prey species, Fisheries Science, 66(5), 863-870, 200010
    Link to Paper Search Results by DOI
  55. Growth of the bivalve-feeder Halla okudai (Polychaete : Lysaretidae) under wild and rearing conditions, in relation to species and abundance of prey organisms, Fisheries Science, 230-234, 199904
  56. Paralyzing and digestive activities of jelly-like substances excreted by a lysaretid polychaete, Halla okudai., Benthos Research, 54, 1-7, 1999

Publications such as books

  1. 2024/08/15, A Compendium of Collaborations on the Conservation of Horseshoe Crabs- National and International Events and Unpublished Reports from 1996 through 2023., Seasonal Occurrence of Juveniles of Tri-spined Horseshoe crab Tachypleus tridentatus in the Hachi Sandy-mud flat in Takehara City, Hiroshima Prefecture, Japan, with a Special Reference to Timing of Dormancy., Horseshoe crab, Springer-Nature, 2024, 08, Scholarly Book, Joint work, English, Susumu Ohtsuka, Katsushi Hirano, Yusuke Kondo, Kenichiro Kashimoto, Mari Yonetani, Ken Iida, Taiki Fuji, Tomohisa Kodama, Taiki Murai, Hidetoshi Saito, Norio Shimizu, Michitaka Shimomura, Kaori Wakabayashi, Ko Tomikawa and Ling Ming Tsang

Invited Lecture, Oral Presentation, Poster Presentation

  1. MOLECULAR MECHANISMS INVOLVED IN CHIRONOMUS SULFUROSUS LARVAE UNDER COPPER EXPOSURE, Pamela A. Tettey, Sotaro Fujii, Hidetoshi Saito, Yoshihiro Sambongi, Koichiro Kawai, 2024 ASLO Meeting, 2024/06/02, Without Invitation, English, Association for the Sciences of Limnology and Oceanography (ASLO-2024)., Madison, Wisconsin USA
  2. Crustaceans sold as live fishing bait in Japan, Saito,H. and Kawai,K, IAA & CSJ Joint International Conference on Crustacea, 2014, Without Invitation, English, International Association of Astacology (IAA) & The Carcinological Society of Japan (CSJ), Sapporo, Japan
  3. The present state of aquatic organisms supplien as fishing bait in Japan, Saito,H. Kawai,K. Umino,T. and Imabayashi,H, 11th International Polychaete Conference, 2013, Without Invitation, English, International Polychaete Conference Committee, Sydney, Australia

Social Activities

History as Peer Reviews of Academic Papers

  1. 2025, Marine Biology Research, Others
  2. 2024, Aquatic Ecology
  3. 2024, Journal of Ocean University of China
  4. 2023, Journal of Crustacean Biology, Others
  5. 2023, Plankton and Benthos Research, Others
  6. 2023, Peer J, Others
  7. 2020, Check List, Others
  8. 2019, Plankton and Benthos Research, Others
  9. 2019, Zoological Science, Others