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
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
Source Identifiers
[PISSN] 0370-9361
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
Relations
[ISSN]0370-9361