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引用次数: 1
摘要
以Rajshahi大学校园内的15个池塘为研究对象，对鱼类生产的大小本地物种(SIS)进行了研究。池塘产量为326.16 ~ 2187.40 kg/ha。SIS与大鱼产量的比值最大为1:1 .10(按数量计算)和1:7 .46(按重量计算)。这些SIS鱼大多数是自雇种(SRS)，因为它们没有在研究的池塘中放养。F/C比值平均为4.583,DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15378 Univ. j. zool。Rajshahi university . Vol. 31, 2012 . pp. 27-30
Production of small and big fishes of selected ponds
To study the big and Small Indigenous Species (SIS) of fish production, 15 ponds of Rajshahi University campus were selected. The pond production was ranged from 326.16 to 2187.40 kg/ha. The ratio of SIS and big fish production was calculated maximum as 1 : 0.10 (by number) and 1 : 7.46 (by weight). Majority of these SIS fish are Self Recruiting Species (SRS), because they were not stocked in the studied ponds. The F/C ratio was obtained as 4.583 in average DOI: http://dx.doi.org/10.3329/ujzru.v31i0.15378 Univ. j. zool. Rajshahi Univ. Vol. 31, 2012 pp. 27-30
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