Prevalence of ectoparasites in milkfish (Chanos chanos) from nursery and rearing ponds
Milkfish (Chanos chanos) cultivation is inseparable from the disease problems caused by viruses, bacteria, fungi, and parasites. Dactylogyrus sp. often affects the heart organ of C. chanos. Young specimens in nursery ponds are more susceptible to the related diseases than adults in enlarged po...
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| Main Authors: | , , |
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| Format: | Article PeerReviewed |
| Language: | English English English |
| Published: |
Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society
2020
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| Subjects: | |
| Online Access: | https://repository.unair.ac.id/126739/2/Turnitin%20AACL%20Bioflux%2013%285%29.pdf https://repository.unair.ac.id/126739/5/Bioflux%2013%285%29%202020.pdf https://repository.unair.ac.id/126739/7/Surat%20Ket%20Ethical%20Cleareance.pdf https://repository.unair.ac.id/126739/ http://www.bioflux.com.ro/home/volume-13-5-2020/ |
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| Institution: | Universitas Airlangga |
| Language: | English English English |
| Summary: | Milkfish (Chanos chanos) cultivation is inseparable from the disease problems caused by
viruses, bacteria, fungi, and parasites. Dactylogyrus sp. often affects the heart organ of C. chanos.
Young specimens in nursery ponds are more susceptible to the related diseases than adults in enlarged
ponds. The current research compared the prevalence of ectoparasites infesting C. chanos in the nursery
and rearing ponds, in order to prevent parasite infestation. An experimental study was conducted by
using survey methods. Simple random sampling used to select 300 samples from nursery and rearing
ponds in 3 different cultivation locations. The main investigated parameter in this study was the
prevalence of ectoparasites infesting C. chanos in nursery and rearing ponds. Besides, water quality
parameters were also determined, including temperature, salinity, pH, brightness, dissolved oxygen
levels, and ammonia. The study identified Dactylogyrus vastator as the ectoparasites that infested C.
chanos in the nursery and rearing ponds. The average prevalence of ectoparasites in the nursery pond
was of 5.33%, while in the rearing pond it was of 2.0%. The Chi-Square test showed a significance value
of 0.293 in both, nursery and rearing ponds. The water quality measurements of both ponds resulted an
optimum value in temperature (26-28oC), salinity (17-20 ppt), brightness (25-28 cm), pH (7-8), and
ammonia levels (0.01-0.05 mg L-1
). The D. vastator infestation in C. chanos in the nursery and rearing
ponds was at an occasional level and did not show significant differences in the prevalence values
between the two ecosystem pools. |
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