Results 11 to 20 of about 103 (71)
Helminthologia, 2011 Abstract The present study is the first description of the egg morphology, embryonic development, and time required for hatching, and longevity of the oncomiracidium of Heterobothrium ecuadori (Meserve, 1938) Sproston, 1946. Experiments found that hatching time fluctuated between 7 and 10 days with a mean of 7.5 ± 1 days at 23 ± 1° C ...
Grano-Maldonado M. +3 more
doaj +4 more sources
Heterobothrium Infection of Cultured Tiger Puffer, Takifugu rubripes-Infection Experiments.
Fish Pathology, 1997 One-year old tiger puffer, Takifugu rubripes, were infected with the monogenean, Heterobothrium okamotoi, by exposing oncomiracidia of the parasite. Maximal intensity of infection on the gills and branchial cavity wall was 79 and 76, respectively. Immature parasites were found on the gill filaments of the host for the first 5-7 weeks until they grew up
Ogawa, Kazuo, Inouye, Kiyoshi
openaire +2 more sources
Heterobothrium Infection of Cultured Tiger Puffer, Takifugu rubripes. A Field Observation.
Fish Pathology, 1997 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. The infection was first detected in November, about five months after the introduction of host fish juvenils to the culture site. The parasite first attached to the gill filaments. They did
Ogawa, Kazuo, Inouye, Kiyoshi
openaire +2 more sources
Fish Pathology, 2004 Development of the monogenean Heterobothrium okamotoi on the gills of tiger puffer Takifugu rubripes was monitored, based on specimens collected from experimentally infected fish kept at 20°C for 20 days. The development of the parasite, indicated by both the body length and the number of clamp pairs, was faster in the second and third weeks of ...
Yasuzaki, Masayoshi +2 more
openaire +1 more source
Fish Pathology, 2005 Two-year-old tiger puffer Takifugu rubripes, persistently infected with the monogenean Heterobothrium okamotoi for longer than one year, were cohabitated in an aquarium with one-year-old tigerpuffer with no previous record of infection (naive fish) for 70 days.
Nakane, Motoyuki +4 more
openaire +2 more sources
Parasitology, 2003 We examined a host-finding factor of the monogeneanHeterobothrium okamotoioncomiracidia to develop an alternative prophylaxis.H. okamotoioncomiracidia attached preferentially to gill filaments and skin mucus from the tiger pufferTakifugu rubripescompared with corresponding material from other tested fishes (amber jackSeriola dumerili, red sea ...
N, Hirazawa +3 more
openaire +2 more sources
Mucosal IgM Antibody with
The Journal of Immunology, 2017 Abstract How parasites recognize their definitive hosts is a mystery; however, parasitism is reportedly initiated by recognition of certain molecules on host surfaces. Fish ectoparasites make initial contact with their hosts at body surfaces, such as skin and gills, which are covered with mucosa that are similar to those of mammalian ...
Kento, Igarashi +10 more
openaire +2 more sources
Fish Pathology, 2004 Tiger puffer experimentally infected with Heterobothrium okamotoi was given gradual changes of water temperature, and the effect of temperature on the production and viability of the parasite eggs was examined. Among 10, 15, 20, 25 and 30°C, the highest egg production rate was observed at 25°C. While most of eggs produced at 10 or 20°C hatched at 20°C-
Yamabata, Naoko +2 more
openaire +2 more sources
Fish Pathology, 1997 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 posterior part of the parasite body was embedded, to make in vitro observations of copulation and egg production under the stereomicroscope.
openaire +2 more sources
Parasitology, 2007 SUMMARYWe examined whether infection by the monogenean Heterobothrium okamotoi induces production of specific antibodies against oncomiracidia and their cilia, larvae on the gills, and adults on the branchial cavity wall of tiger puffer Takifugu rubripes.
N, Umeda, A, Hatanaka, N, Hirazawa
openaire +2 more sources