Impacts of diclidophorid monogenean infections on fisheries in Japan.

  title={Impacts of diclidophorid monogenean infections on fisheries in Japan.},
  author={Kazuo Ogawa},
  journal={International journal for parasitology},
  volume={32 3},
  • K. Ogawa
  • Published 1 March 2002
  • Biology
  • International journal for parasitology
Acquired Protection of Tiger Puffer Takifugu rubripes against Infection with Heterobothrium okamotoi (Monogenea : Diclidophoridae)
It is suggested that a persistent infection induces protection against H. okamotoi, but the factors responsible for effective prevention against reinfection remain to be clarified.
Egg-laying of the Monogenean Heterobothrium okamotoi on Experimentally Infected Tiger Puffer Takifugu rubripes
In vivo egg-laying by the diclidophorid monogenean Heterobothrium okamotoi was studied in artificially infected tiger puffer Takifugu rubripes, and egg hatching rates increased to 90% or higher, irrespective of the number of eggs laid by parasites at different intensities of infection.
Diseases of cultured marine fishes caused by Platyhelminthes (Monogenea, Digenea, Cestoda)
Some cases are described that show how international trade in marine fish has resulted in the spread of hitherto unknown parasites into indigenous farmed and wild fish.
Role of cellular response in elimination of the monogenean Neoheterobothrium hirame in Japanese flounder Paralichthys olivaceus.
The results of the present study suggest that flounder can eliminate N. hirame if they are fed sufficiently, and that the cellular response of the host fish destructed the parasite's posterior part embedded in the tissue, thereby eliminating the parasites.
Experiments on the Evaluation of the Blood Feeding of Heterobothrium okamotoi (Monogenea : Diclidophoridae)
The results show that the amount of blood increased as the parasite developed and that an adult fed 0.69±0.93μL of host blood for 12 h (=42μL/month).
Reproductive Strategies of the Insidious Fish Ectoparasite, Neobenedenia sp. (Capsalidae: Monogenea)
The first experimental evidence that a notorious fish monogenean, Neobenedenia sp.
Early Development of the Monogenean Heterobothrium okamotoi on the Gills of Tiger Puffer Takifugu rubripes
The results indicate that the growth of H. okamotoi on the gills of tiger puffer is closely associated with the increase in the number of clamp pairs and the intake of the host blood.
The population of on the gills of Sarotherodon galilaeus (Linnaeus, (Cichliformes: the impact of abiotic and biotic parameters
It was observed that the size of fish and host sex do not have any influence on parasitism infection, and this may help to improve strategies in aquaculture management, to reduce potential economic losses of S. galilaeus caused by parasitic infection.


Heterobothrium Infection of Cultured Tiger Puffer, Takifugu rubripes—Infection Experiments
One-year old tiger puffer fish infected with the monogenean, Heterobothrium okamotoi, by exposing oncomiracidia of the parasite showed anemia, as indicated by the decreased hematocrit value and hemoglobin content with the growth of parasites.
Heterobothrium Infection of Cultured Tiger Puffer, Takifugu rubripes—A Field Observation
The infection of cultured tiger puffer with the monogenean Heterobothrium okamotoi was monitored bimonthly from juvenile to marketable size for one year and a half and the parasite sometimes showed strikingly biased distribution on the gills.
Egg hatching of the monogenean Heterobothrium okamotoi, a gill parasite of cultured tiger puffer (Takifugu rubripes), with a descriptionof its oncomiracidium
The Heterobothrium okamotoi oncomiracidium could survive much longer than other monogenean larvae, with an average life span of 9.1 days, suggesting that it can retain its infectivity much longerthan othermonogeneans.
Copulation and Egg Production of the Monogenean Heterobothrium okamotoi, a Gill Parasite of Cultured Tiger Puffer (Takifugu rubripes)
The monogenean Heterobothrium okamotoi, parasitizing, in clusters, the branchial cavity wall of cultured tiger puffer Takifugu rubripes, were collected together with some host tissue, in which the
Standardized Method for Experimental Infection of Tiger Puffer Takifugu rubripes with Oncomiracidia of Heterobothrium okamotoi (Monogenea : Diclidophoridae) with Some Data on the Oncomiracidial Biology
Infection methods using tiger puffer and H. okamotoi oncomiracidia were standardized in terms of exposure time, parasite age, and parasite concentration and CFSE-staining is suitable for the study of early stages of parasite settlement on the host fish.
Microhabitats and Mode of Attachment of Neoheterobothrium hirame, a Monogenean Parasite of Japanese Flounder
A survey of Neoheterobothrium hirame infection of Japanese flounder Paralichthys olivaceus in several places in Japan was conducted to examine the relationship between the development of the parasite and its microhabitats.
Anemia Caused by Challenges with the Monogenean Neoheterobothrium hirame in the Japanese Flounder
The results, together with the previous findings, suggest that N. hirame is the main cause of the anemia prevailing in the Japanese flounder.
Neoheterobothrium hirame sp. nov. (Monogenea: Diclidophoridae) from the buccal cavity wall of Japanese flounder Paralichthys olivaceus.
The new species can be distinguished from N. affine (Linton, 1898) --the most closely related species and the type species of the genus--by the relatively large body proper and the shorter isthmus.
Parasites of Cultured Tiger Puffer (Takifugu rubripes) and their Seasonal Occurrences, with Descriptions of Two New Species of Gyrodactylus
Parasites of cultured tiger puffer, Takifugu rubripes, produced in a hatchery, introduced to a culture site in Nagasaki Prefecture in summer and cultured for one year and a half in net cages, were