University Of Tasmania

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Economic effects of sea surface temperature, aging population, and market distance on a small-scale fishery

journal contribution
posted on 2023-05-20, 20:31 authored by Jang, HG, Satoshi YamazakiSatoshi Yamazaki, Kiyama, S, Higashida, K, Dugald Tinch
We studied how local environmental and socio-economic factors impact fish supply and the price outcome of small-scale fisheries. We exploited day-to-day variations in sea surface temperature (SST) and cross-sectional differences in market distance and age of fishers to measure consumers’ responsiveness to price changes in a small-scale octopus fishery in Japan. Using the estimated demand parameters, we quantified the economic consequences of local socio-environmental factors in terms of changes in fishing revenue and consumer surplus. We found that increasing SST and an aging workforce increase the octopus supply and that consumers are responsive to price changes due to such supply shocks. Our results suggest that increasing SST and an aging workforce have positive net effects on fishing revenue and consumer surplus within the fishery. The octopus fishery provides a temporary source of income in the off-season of other species, smoothing the seasonal income variation of elderly fishers in the community.


Publication title

ICES Journal of Marine Science








Academic Press Ltd Elsevier Science Ltd

Place of publication

24-28 Oval Rd, London, England, Nw1 7Dx

Rights statement

Copyright International Council for the Exploration of the Sea 2021.

Repository Status

  • Restricted

Socio-economic Objectives

Productivity (excl. public sector); Supply and demand; Assessment and management of coastal and estuarine ecosystems