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Ecological and economic analysis for cobia Rachycentron canadum commercial cage culture in Taiwan
Miao, S.; Jen, C.C.; Huang, C.T.; Hu, S.-H. (2009). Ecological and economic analysis for cobia Rachycentron canadum commercial cage culture in Taiwan. Aquacult. Int. 17(2): 125-141. dx.doi.org/10.1007/s10499-008-9185-7
In: Aquaculture International. Springer: London. ISSN 0967-6120, more
Peer reviewed article

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Keywords
    Cage culture; Limiting factors; Profitability; Rachycentron canadum (Linnaeus, 1766) [WoRMS]; Marine

Authors  Top 
  • Miao, S.
  • Jen, C.C.
  • Huang, C.T.
  • Hu, S.-H.

Abstract
    The structure of cost and return for cobia cage culture in Taiwan was studied by considering two major factors, geographical location and production scale. Although the geographical location had little influence on the input intensities, the production scale would have a significant impact on the cost structure. However, the performances of profitability were significantly affected by not only the individual main effects but also their interaction. As a result, the studied effects on the cost and return were quantitatively estimated by a series of statistical models, in turn quantitatively measured by a set of indices. A short-term strategy of the management suggested that the best choice regarding profitability is to locate the farming system with a large-scale operation in the coastal waters of Pindong. Additionally, the profitability could be further increased by selecting better quality fingerlings and feeds based on a set of the computed indices. A long-term strategy of the management strongly recommends that to increase the system size in cobia production would be much more profitable due to the positive economies of scale. Finally, a future study shall be interested in whether current speed has a limiting effect on the profitability.

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