搜索结果: 1-2 共查到“水产学 community”相关记录2条 . 查询时间(0.093 秒)
Fish community structure of the middle course of the Bečva River
weirs fish species Beč va river Czech Republic
2015/6/5
Fish communities of the Bečva River were studied in summer and autumn 2000 and 2001. Electric fishing gear (Honda EX 1000, DC 230 V, 0.75–0.9 kW) was used for sampling. Four sampling sites (Grymo...
Increased Income from Seasonally Flooded Rice Fields through Community Based Fish Culture in Bangladesh and Vietnam
Community-based management Floodplain agriculture Rice-fish culture
2009/7/24
In extensive river floodplains and deltaic lowlands, floods lasting several months render the land unavailable for crop (often rice) production during the rainy season. Aside from crop production duri...