Study of some Bacterial Pathogens that Infect Common Carp (Cyprinus Carpio) in the Diwaniya River and their Relationship to Water Characteristics
Study of some Bacterial Pathogens that Infect Common Carp (Cyprinus Carpio) in the Diwaniya River and their Relationship to Water Characteristics
Mohanad O. Al-Jubouri1*, Sadeq M. AL Haider2, Safa M. Imran3
ABSTRACT
A total of 100 fishes was collected in the Diwaniya River during the period extending from December 2022 to November 2023, Fish were caught using three types of nets The seine net, gill nets and cast net. Seven diseases were bacterial It is diagnosed by clinical signs that appear from severe infections of external and internal organs (Bacterial gill disease, Tail and fin rot, Infection abdominal dropsy, Columnaris Disease, Enteric red mouth disease, Bacterial enteritis, Vibriosis). Bacteria were identified according to their shape, characterization and use of the Vitek II system, and they include: A. hydrophila, A. veronii, P. putida, A. hydrophila, B. columnaris, F. columnaris, C. columnaris, F. columnare, E. cloacae, P. fluorescens Intestinalis, Streptococcus sp. The temperature of the water varied between 11.2°C to 33.8°C, the salinity values varied from 0.5o°C to 0.69°C, and the O2 levels vary from 4.5 mg/L to 9.0 mg/L, pH levels, 8 at 6.1. The results of CCA showed the identification of temperature, ammonia, salinity, pH, nitrite, and BOD5 as the most important water specifications due to a correlation in the spread of bacteria. The study findings underscore the to determine the effect of water quality on the spread of bacteria in common carp (Cyprinus carpio. L).
Keywords | Pathogenic bacteria, C. carpio, Water quality, Vital test
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