To date, the empirical literature on spatial closures has focused on specific fleets and/or areas, and relatively less attention has been paid to the evaluation of responses to large-scale spatial restrictions on ocean fishing. Where such restrictions occur, a broad range of fleets may be affected, with diverse response mechanisms determining the redistribution of fishing effort and the associated welfare impacts. We propose a methodological approach to address such situations. Using hypothetical scenarios regarding the closure of the UK exclusive economic zone (EEZ) to a diverse subset of French vessels as an example, we develop a spatial discrete choice model that incorporates the possibility to adjust the resolution of choice sets at the fleet level to account for heterogeneous behavioral patterns across fleets. We show how neglecting fleet diversity in the choice of the spatial resolution of analysis may bias the results of an impact study on large spatial closures.

中文翻译：

---

在估计大规模渔业关闭的影响时考虑船队的异质性

迄今为止，空间封闭的实证文献主要集中在特定的船队和/或区域，而相对较少地关注对海洋捕捞大规模空间限制的反应评估。在发生此类限制时，可能会影响范围广泛的船队，不同的响应机制决定了捕捞努力量的重新分配和相关的福利影响。我们提出了一种方法论方法来解决这种情况。以英国专属经济区 (EEZ) 对法国船舶的多样化子集关闭的假设情景为例，我们开发了一个空间离散选择模型，其中包含在船队层面调整选择集分辨率的可能性，以考虑用于跨舰队的异构行为模式。