Industry-initiated catch limit management: The case of purse seine fishery in Japan's EEZ waters of the North Pacific Ocean
Industry-initiated catch limit management: The case of purse seine fishery in Japan's EEZ waters of the North Pacific Ocean
复制标题
行业发起的捕捞限额管理：日本北太平洋专属经济区水域围网渔业案例
DOI：
10.1016/j.marpol.2022.105053
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发表时间：
2022
期刊：
影响因子：
3.8
通讯作者：
Yutaro Sakai
中科院分区：
文献类型：
--
作者：
Takahiro Tsujita;Nobuyuki Yagi;Yutaro Sakai
由于许多渔业资源被过度开发，全世界对有效渔业管理的需求日益增加。虽然政府和渔民之间的共同管理被认为是一个可行的选择，但这种管理的绩效并不清楚。本研究描述了日本专属经济区沃茨的北太平洋鲭鱼（鲭鱼，蓝鲭鱼Scomber australasicus）围网渔业管理的历史背景，现状和价格变化。这种渔业的不寻常之处在于，一个行业组织在管理政府设定的总可捕量（TAC）方面发挥着重要作用。值得注意的是，该组织在2007年自愿实行了船只一级的月渔获量限制。这一共同管理制度有效地遵守了《总合同法》。此外，我们研究了与CL管理相关的价格变化，通过使用差异中的差异设计，比较2007年前后CL管理下的船舶登陆和不登陆的港口的价格。结果表明，这种管理的引入与鲭鱼价格上涨21.335日元/kg（s.e.）有关。= 10.397），这几乎消除了与日本其他地区鲭鱼的价格差距。对收入、出口价格和时间趋势进行控制并不会从数量上改变我们的结果。然而，需要进一步研究来阐明CL管理的因果影响，因为共同趋势假设可能成立，但稳定单位治疗值假设可能不在我们的环境中。
The need for effective fishery management is growing worldwide due to the overexploited status of many fishery resources. While co-management between the government and fishers is considered a viable option, the performance of such a management is not well understood. This study describes the historical context, the current situation, and the price changes associated with the mackerel (chub mackerel Scomber japonicus, blue mackerel Scomber australasicus) purse seine fishery management in Japan’s EEZ waters of the North Pacific Ocean. This fishery is unusual in that an industry organization plays a major role in managing the total allowable catch (TAC) set by the government. Notably, the organization voluntarily introduced vessel-level monthly catch limits (CL) in 2007. This co-management system has been effective in adhering to the TAC. Moreover, we examine the price changes associated with the CL management by using difference-in-differences design where the prices in ports where vessels under the CL management land and where they do not are compared before and after 2007. Results indicate that the introduction of this management is associated with an increase in their mackerel price by 21.335 yen/kg (s.e. = 10.397), which virtually eliminated the price gaps with mackerel in other regions in Japan. Controlling for income, export price, and time trends do not change our result quantitatively. However, further study is needed to clarify the causal impact of the CL management, as the common trend assumption is likely to hold but the stable unit treatment value assumption is likely not in our setting.