COMPARATIVE ACCOUNT OF BACTERIA IN EXTENSIVE AND SEMI-INTENSIVE WATER SHRIMP PONDS (PENAELLS MONODON)HASSAN TAGHAVI JELODAR, BHUTAL B. CHAUGULE AND VIKRAM S. GHOLE
In the present study, the total bacterial populations of brackish water shrimp culture were conducted for 5 months at Pancham Aquatulture shrimp farms in 2007. Total bacteria varied considerably from 14-25 x 103 cfu mL lin initial, 51-97x104 cfu ml;' in cultured and 105-131x105 cfu in harvest experiments at extensive ponds and 14-29x103 cfu 72-104x104 cfu mL-' and 128-173x105 cfu mL-1 for semi-intensive ponds in initial, culture and harvest, respectively. Generally, data showed the bacteria concentration increasing from the initial phase to the harvested media at the ponds of two cultivation methods. Six different bacteria were determined in ponds before cultivation, which included Staphylococcus gallinarum, Staphylococcus xylosus, Chromobacternum violaceum, Hafnia alvei, Aeromons salmonicida and Acinetobacter baumnii, while five bacterial species were observed after cultivation. In harvest phase, bacteria diversities were 12 species. The results showed in spite of the decline of the bacteria diversity, the population increased within both extensive and semi- extensive ponds. Among the bacteria species only Vibrio alginolyticus and V arahaernolyticus were pathogenic bacteria. However main species of bacteria of the brackish shrimp ponds were Pseudomonas stutzeri, P. putida, P. mendocina P. aeruginosa, P. alcaligenes and Aeromons salmonicida.
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