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Comparison of microbial community structures in intensive and extensive shrimp culture ponds and a mangrove area in Thailand

Authors

  • Tomoko SAKAMI,

    Corresponding author
    1. Aquaculture Systems Division, National Research Institute of Aquaculture, Minami-ise, Mie 516-0193, and
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    • a

      Present address: Coastal Fisheries and Aquaculture Division, Tohoku National Fisheries Research Institute, Fisheries Research Agency, Shiogama, Miyagi 985-0001, Japan.

  • Yoshimi FUJIOKA,

    1. Fisheries Division, Japan International Research Center for Agricultural Sciences, Tsukua 305-8686, Japan
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    • b

      Present address: Marine Environment Section, Ishigaki Tropical Station, Seikai National Fisheries Research Institute, Okinawa 907-0451, Japan.

  • Toru SHIMODA

    1. Fisheries Division, Japan International Research Center for Agricultural Sciences, Tsukua 305-8686, Japan
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    • c

      Present address: Aquaculture Systems Division, National Research Institute of Aquaculture, Minami-ise, Mie 516-0193, Japan.


*Tel: 81-22-365-9933.
Fax: 81-22-367-1250. Email: sakami@fra.affrc.go.jp

Abstract

ABSTRACT:  A pelagic bacterial community structure was examined in experimental intensive shrimp culture ponds that have a shrimp–mangrove complex aquaculture system, an extensive shrimp culture pond and a mangrove area in Thailand by denaturant gradient gel electrophoresis analysis of polymerase chain reaction amplified partial 16S rRNA genes. Bacterial community structure in the intensive shrimp culture ponds was distinguishable from that of the mangrove area. In the extensive shrimp culture pond, the bacterial community structure resembled that in the mangrove area, but bacterial abundance was as great as that in the intensive shrimp culture ponds. Among the intensive shrimp culture ponds, the bacterial community structure was different between a closed culture system and a shrimp–mangrove complex culture system. Moreover, the bacterial community structure in mangrove planted ponds was close to those in the intensive shrimp culture ponds when shrimp culture was conducted, but it was close to those in the mangrove areas without shrimp culture. These results suggest that intensive shrimp culture with shrimp feed input affects the bacterial community structures in pond water.

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