Prevalence, mean intensity and site preference of Caligus rotundigenitalis Yü, 1933 (Copepoda: Caligidae) on cage cultured crimson snapper (Lutjanus erythropterus Bloch, 1790) from Bukit Tambun, Penang, Malaysia.
Vet Parasitol
; 187(3-4): 505-10, 2012 Jul 06.
Article
in En
| MEDLINE
| ID: mdl-22425490
ABSTRACT
Snapper had been cultured in Malaysia since 1980 due to the fry availability and the high demand. However, details on the caligids infestation were not properly documented. This study was carried out to determine the prevalence, mean intensity and site preference of Caligus rotundigenitalis (Caligidae, Siphonostomatoida) a parasitic copepod on cage cultured crimson snapper, Lutjanus erythropterus from Bukit Tambun, Penang, Malaysia. A total of 70 specimens of cultured snapper were examined based on different infestation sites such as head, body as well as operculum. The specimens were separated into three groups according to the size of the fish. C. rotundigenitalis was found to be the only species infesting L. erythropterus with the prevalence and the mean intensity of 81.4% and 5.6±4.4, respectively. There was a significant difference between the prevalence of site infestation of the body and inner operculum sites. The prevalence of C. rotundigenitalis was highest on inner operculum of the fish followed by the body and head. However, there was no significant difference in the distribution of C. rotundigenitalis over the different infestation sites derived from the three groups. The information obtained from this study can be used for more effective control measures of ectoparasitic copepod infestation in floating cages.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Parasitic Diseases, Animal
/
Perciformes
/
Copepoda
/
Fish Diseases
Type of study:
Prevalence_studies
/
Risk_factors_studies
Aspects:
Patient_preference
Limits:
Animals
Country/Region as subject:
Asia
Language:
En
Journal:
Vet Parasitol
Year:
2012
Document type:
Article
Affiliation country:
Malasia