Abundance Information for Heterobranchus longifilis
主要参考文献
国家 Zambia 生态系 Kariba
地点 Lake Kariba Chikanka Island Depth
描述 Year Intro.
生活阶段 not specified unsexed
Quantitative 11.14 Unit kg/hectare
Semi Quantitative <100 Unit kg/hectare
Qualitative very common
年代 1968 - 1968 时期 1950-1974
日期 21/06/68 - 21/06/68 Record Type field sample
Record Type field sample
Seasonal not specified 方法 random sampling
附注 Main average area of Lake Kariba inhabited by fish in 1968 and 1969 was 33,422 ha, corresponding to the 0-20 m depth area at a normal water level of 485 m, representing 6.2% of the total lake surface (5,364 km2). Three sided blocking nets (8 mm mesh size) were utilized and set at different hours of the day to avoid fencing off the the highest evening concentration each time.
(例如 9948)
( 例如 cephalopods )
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