梭鱼鱼苗池的饵料生物组成和鱼苗食性及生长的研究

A STUDY UN FUUD ORGANISMS IN FRY PUNDS AND FUUD HABITS,GRUWTH OF MULLET FRY

  • 摘要: 在池塘中,采用施肥繁殖天然饵料的方法,培育人工繁殖的梭鱼苗已达到生产规模。本文着重报道梭鱼鱼苗池的饵料生物与梭鱼苗的食性和生长等方面的研究。

     

    Abstract: By manuring to reproduce food organisms in the pond of mullet fry in order toraise survival rate of the fry has been successful. 648,462 fingerlings of 23.2---49.83nm in 1980 and 426,902 fingerlings of 25.45-27.85 nzm in 1981.were ubt,ined. The method of spxead maxzure cultivates suitable sire of living feud for the mulletfry. Froth the species axed quantity can he enough to meet the needs of fbe fry duringthe larvae and fingerling stages. Tho feeding habits of mullet a.rc shanged with growth. At the body length heluw2t1 rnm. they mainly Feed on ooplanhtum; the body length between 20-6q nim,theirfeed arc oohenthos and benthie. algae; body leagt.h m er 60 mm, their feed are mainlybenthic algae. The growth of mullet fry is elosaly related with the azuount of foodsupply in the pond.

     

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