Redescription of<i>Caecognathia coralliophila</i>(Monod, 1926) (Crustacea, Isopoda, Gnathiidae), collected from a fish hatchery in Sabah, Borneo Island, Malaysia

Thing, Chong Yen; Ota, Yuzo; Hatai, Kishio; Ransangan, Julian

doi:10.2988/0006-324x-128.1.51

Proceedings of the Biological Society of Washington

2015

DOI: 10.2988/0006-324x-128.1.51

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Redescription ofCaecognathia coralliophila(Monod, 1926) (Crustacea, Isopoda, Gnathiidae), collected from a fish hatchery in Sabah, Borneo Island, Malaysia

Chong Yen Thing

Yuzo Ota²,

Kishio Hatai

et al.

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Cited by 2 publications

References 14 publications

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Occurrence of praniza larvae of a gnathiid (Isopoda, Gnathiidae) on wild-caught orange-spotted grouper, Epinephelus coioides (Hamilton, 1822) (Perciformes, Serranidae), in Lingayen Gulf, Philippines

Cruz-Lacierda

Nagasawa

2017

Crustac

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Praniza larvae of a gnathiid isopod were retrieved from the gills and branchial cavity of wild-caught orange-spotted grouper, Epinephelus coioides (Hamilton, 1822) (Perciformes, Serranidae) in Lingayen Gulf, Philippines. The prevalence and mean intensity of the praniza larvae were 82.3% and 2.2 on the gill filaments and 23.5% and 2.5 in the branchial cavity, respectively. The praniza larva is described and illustrated as there has been no work on the morphology of the parasite in the country where it was collected, to date. This report involves a new record for larval gnathiid infection on E. coioides in the Philippines.

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Occurrence of praniza larvae of a gnathiid (Isopoda, Gnathiidae) on wild-caught orange-spotted grouper, Epinephelus coioides (Hamilton, 1822) (Perciformes, Serranidae), in Lingayen Gulf, Philippines

Cruz-Lacierda

Nagasawa

2017

Crustac

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Antiparasitic Effect of Formalin, Trichlorfon, Hydrogen Peroxide, and Copper Sulfate on the Parasitic Isopod <i>Caecognathia coralliophila</i>

2016

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Caecognathia coralliophila is known as a pathogenic ectoparasite infecting tiger grouper Epinephelus fuscoguttatus in a hatchery in Sabah, Malaysia. The effects of copper sulfate, formalin, trichlorfon, and hydrogen peroxide on the survival of C. coralliophila larvae were tested in vitro. The larvae were exposed to different concentrations of each chemical for 10, 20, 30, 60 min, or 24 h. Trichlorfon was found to be the most effective, killing the parasites within 24 h at 0.2 ppm. Consequently, the toxicity of trichlorfon to tiger grouper was tested. Fish were exposed to trichlorfon at 0.2 ppm for 24 h or 3.2 ppm for 60 min. No fish died in the experiment. Thus, our data suggest that trichlorfon is effective for treating C. coralliophila infection in E. fuscoguttatus.

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Redescription ofCaecognathia coralliophila(Monod, 1926) (Crustacea, Isopoda, Gnathiidae), collected from a fish hatchery in Sabah, Borneo Island, Malaysia

Cited by 2 publications

References 14 publications

Occurrence of praniza larvae of a gnathiid (Isopoda, Gnathiidae) on wild-caught orange-spotted grouper, Epinephelus coioides (Hamilton, 1822) (Perciformes, Serranidae), in Lingayen Gulf, Philippines

Occurrence of praniza larvae of a gnathiid (Isopoda, Gnathiidae) on wild-caught orange-spotted grouper, Epinephelus coioides (Hamilton, 1822) (Perciformes, Serranidae), in Lingayen Gulf, Philippines

Antiparasitic Effect of Formalin, Trichlorfon, Hydrogen Peroxide, and Copper Sulfate on the Parasitic Isopod <i>Caecognathia coralliophila</i>

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