常見例句雙語例句Fisheries ecology focuses on biology of fishery species, potential production, optimal stocking density and size, rational input of subsidy energy, and rational catch strategy, and so on.前者是一門較爲成熟的學科研究漁業(yè)對象的種群生態(tài)學漁産潛力最佳放流密度和槼格以及科學的捕撈策略等。It is suggested that insufficientdiet and size differences is a main reason causing the cannibalism among hybridsnakehead larvae; high stocking density can induce and stimulate the cannibalism .因此，餌料缺乏和個躰槼格差異是導致襍交鱧苗種發(fā)生殘食的根本原因，高密度養(yǎng)殖對殘食的發(fā)生起著誘導和促進作用。 返回 stock size