| 要旨トップ | 目次 | 日本生態学会第59回全国大会 (2012年3月,大津) 講演要旨
ESJ59/EAFES5 Abstract


一般講演(ポスター発表) P1-008A (Poster presentation)

Actual vegetation in the mangroves affected with shirmp farming practices

*Toe Toe Aung, 'Mochida Yukira', Yokohama National University

In recent decade, shrimp farming in mangroves has become critical issue worldwide, and since 2002 similar challenge has been spread in the Ayeyarwady mangroves in Myanmar. Understanding about mangrove vegetation in the aquaculture-driven mangroves, thus, is required in order to achieve sustainable management. Firstly, based on 320 quadrats by the phytosociological survey, there were 36 species recorded, and most of them were herbaceous species. The mangrove trees most frequently occurred were Ceriops decandra, Avicennia mariana, Heritiera fomes, A. officinalis and Excoecaria agallocha. Then, five categories of A. marina dominated sites, 10 plots for each and a total of 50 plots, were selected for further observation. The results revealed that the ongoing shrimp farming with the presence of mangroves illustrated more appreciable status in biomass and soil properties compared to other farming sites including mangroves without farming practices. More importantly, it is clear that plant trait of A. marina species witnessed that its pneumatophores were able to cope with the acceptable level of brackish water flushing in the farming practices. This kind of natural persistent species, therefore, showed high potential to be introduced in rehabilitation measures with mangrove-friendly aquaculture as well as restoration in abandoned shrimp pond areas.


日本生態学会