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Morphological Characterization of Hemocytes of Parasitic Copepod Acanthochondria eptatreti(Poecilostomatoida: Chondracanthidae) and Infection of Acanthochondria eptatreti on Hagfish Eptatretus burgerifrom Hibiki-Nada

Journal of National Fisheries University Volume 63 Issue 4 Page 232-236
published_at 2015-03
63-4-232-236.pdf
[fulltext] 2.17 MB
Title
寄生性カイアシ類Acanthochondria eptatreti(ポエキロストマ目ツブムシ科)の血球の形態学的特徴および響灘産ヌタウナギEptatretus burgeriにおける寄生状況
Morphological Characterization of Hemocytes of Parasitic Copepod Acanthochondria eptatreti(Poecilostomatoida: Chondracanthidae) and Infection of Acanthochondria eptatreti on Hagfish Eptatretus burgerifrom Hibiki-Nada
Creators Kondo Masakazu
Creators Yasumoto Shinya
Creators Takahashi Yukinori
Source Identifiers
Creator Keywords
Acanthochondria eptatreti Copepoda Crustacea hemocyte morphology
Morphological characteristics of hemocytes in parasitic copepod Acanthochondria eptatreti (Chondracanthidae, Poecilostomatoida) from hagfish Eptatretus burgeri off Shimonoseki (Hibiki-Nada), Japan, were histologically examined by light microscopy. Only a single type of hemocyte, basophilic granulocyte, was observed not only in the hemal space, but also on/in the connecting tissue of A. eptatreti. The morphology of the hemocytes, especially cytoplasmic granules, were similar to those of other parasitic copepods, Pseudocaligus fugu (Siphonostomatoida) and anchor worm Lernaea cyprinacea (Cyclopoida), hemocyte-like granular cells of the copepods with free life style (Tigriopus japonicus (Harpacticoida) and Cyclops vicinus (Cyclopoida)) in which lack circulating hemocytes. About 12% of hagfish were infected with A. eptatreti. This is the first recorded occurrence of A. eptatreti infection on hagfish in Japan.
Languages jpn
Resource Type departmental bulletin paper
Publishers National Fisheries University
Date Issued 2015-03
File Version Version of Record
Access Rights open access
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[ISSN]0370-9361