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Profit and equity trade‐offs in the management of small pelagic fisheries: the case of the Japanese sardine fishery


Jang, H and Yamazaki, S and Hoshino, E, Profit and equity trade‐offs in the management of small pelagic fisheries: the case of the Japanese sardine fishery, Australian Journal of Agricultural and Resource Economics, 63, (3) pp. 549-574. ISSN 1364-985X (2019) [Refereed Article]

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© 2019 Australasian Agricultural and Resource Economics Society Inc.

DOI: doi:10.1111/1467-8489.12317


The management of small pelagic fisheries is difficult due to environmental regime changes that generate multi‐decadal cyclic fluctuations in stock abundance. Lagged management responses to environmental factors can amplify the effects of fishing and may even result in stock collapse. In this paper, we develop an age‐structured bioeconomic model to explore the effectiveness of alternative management approaches for cyclically fluctuating small pelagic fish stocks. The fishery outcomes are evaluated against the overall profit of the fishery and the intertemporal distribution of fishing profits. The model is parameterised for the Japanese sardine fishery, once the largest fishery in Japan, which has experienced a prolonged period of stock collapse over the last 100 years. The results show that the duration of fishery collapse is mostly determined by the extent of cyclic fluctuations in the recruitment of immature sardines, but the effects of the fluctuations on the fishery are heightened by the cumulative impact of fishing. We further show that restricting fishing reduces the fishery’s overall profits, but smooths the intertemporal distribution of profits, resulting in greater intergenerational equity. This income smoothing effect is particularly pronounced when the stock exhibits high levels of cyclic fluctuations.

Item Details

Item Type:Refereed Article
Keywords:bioeconomic models, environmental fluctuations, intergenerational equity, Japan, small pelagic fisheries
Research Division:Economics
Research Group:Applied economics
Research Field:Environment and resource economics
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Assessment and management of coastal and estuarine ecosystems
UTAS Author:Jang, H (Mr Ho Geun Jang)
UTAS Author:Yamazaki, S (Associate Professor Satoshi Yamazaki)
UTAS Author:Hoshino, E (Dr Eriko Hoshino)
ID Code:133287
Year Published:2019
Web of Science® Times Cited:1
Deposited By:Economics and Finance
Deposited On:2019-06-21
Last Modified:2022-08-22
Downloads:31 View Download Statistics

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