Bài báo khoa học

Secondary mangrove forest, Sonneratia caseolaris-Aegiceras corniculatum stand, in the canal network adjacent to the shrimp culture ponds at the Lam River estuary was surveyed. Main objective of this study is to elucidate the relationship between species distribution and flooded duration by brackish water to apply for designing silvofishery systems to the shrimp culture ponds. Land height from datum line and mean inundated duration range from 1.1 m to 1.9 m and from 9.0 hours day−1 to 19.6 hours day−1, respectively. The stand mainly contains three or more herbaceous species (associate species: Cyperus malaccensis and Acanthus spp., and one nonmangrove species: Phragmites australis) other than two woody species. Zones of C. malaccensis and Acanthus spp. distributing are overlapped in height and mean inundated duration, ranging from 1.1 m to 1.4 m, from 16.7 hours day−1 to 19.6 hours day−1, from 1.2 m to 1.4 m, and from 16.7 hours day−1 to 18.7 hours day−1, respectively. Since it is reported that Acanthus has more potential to retain nutrients than woody mangrove species, and C. malaccensis called mat grass is an economically valued plant, mangrove buffers with herbaceous species to silvofishery systems in this area are recommended.