Economic Assessment for the Eel Farming Industry in Taiwan

臺灣鰻魚養殖業之經濟評估

廖圣惠(David S. Liao)

《臺灣水產學會刊》 23卷2期 (1996/06) Pp. 155-164

https://doi.org/10.29822/JFST.199606.0008

摘要

本省東北部鎖管燈火漁業在誘集魚群過程中，當有其掠食對象之魚種（幼鯖魚）或掠食者（白帶魚）出現時，鎖管群除分布之縱深範圍會擴大外，其趨集或離散所形成之週期亦會減短，顯示其在燈下周圍之循迴路徑或游速（即行爲）受到明顯之影響。再者，其生物現存量亦會隨之變動。故燈火漁業之集魚效果而言，除趨光性因素外，趨集魚種間之交互作用亦不可忽視。

關鍵字

鰻魚產業 ； 生產成本 ； 行銷模型

並列摘要

During the light fishing operation in the coastal waters of northern Taiwan,the presenceof mackerel(prey)and hairtail(predator)affected the squid shoal which increased the rangesof its vertical distribution and also shortened the cyclic frequency of its aggregation anddispersion toward light sources.It indicated that the cyclic path and swimming speed ofsquid(phototactic behaviour)were heavily effected by the presence of prey and predatorin the illumination zone.Furthermore,the shoal density of squid was also effected.Inconclusion,the luring effects should include the influence by the interaction of fish speciesexcept the phototaxic instinct of squid in the illumination zone.

並列關鍵字

Eel Industry ； Production Costs ； Marketing Models