We studied the post-release activity of newly tagged fish and determined whether and for how long experimental protocol impacted their behavior. Our study focused on three species (Plectropomus leopardus, Chlorurus microrhinos and Scarus ghobban), including a total of 30 fish. Fish were kept outside their natural environment for several days before release for pre- and post-tagging surveys. Moreover, 47% of them were not released at their capture site. Half of all individuals (all species) showed a high level of side fidelity immediately upon release. During this period, they were detected in the same place, by a small and constant number of hydrophones. This site fidelity pattern was also observed for the other fish (50%; all species) but after 1 to 18 days of an unsettled pattern, during which the fish moved significantly along the reef slope (high activity). During this short period, the distances travelled were significantly higher than during the subsequent period of site fidelity (several km vs. a few hundred m). We hypothesize that these unsettled patterns might result from fish experimental displacement (homing behavior) and from post-capture captivity (the fish had to recover a niche within the ecosystem). Consequently, we suggest that fish be released where they were caught to limit the movements associated with homing behavior. Periods of captivity should be avoided as much as possible. If this is not possible, a minimum acclimatization period of two or three weeks should be taken into account when analyzing the data.

中文翻译：

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海洋保护区三种珊瑚礁鱼类的释放后活动：遥测研究的分析和建议

我们研究了新标记的鱼的释放后活动，并确定实验方案是否影响了它们的行为以及影响了多长时间。我们的研究集中在三个物种（Plectropomus leopardus、Chlorurus microrhinos 和 Scarus ghobban）上，包括总共 30 条鱼。鱼在放生前被放置在自然环境外数天以进行标记前和标记后调查。此外，其中 47% 未在捕获地点释放。一半的个体（所有物种）在释放后立即表现出高水平的侧面保真度。在此期间，它们在同一地点被少量且恒定数量的水听器检测到。其他鱼类（50%；所有物种）也观察到了这种现场保真度模式，但在出现不稳定模式 1 到 18 天后，在此期间，鱼沿礁坡显着移动（高活动性）。在这短短的时间内，行进的距离明显高于随后的站点保真期（几公里与几百米）。我们假设这些不稳定的模式可能是由鱼类实验性迁移（归巢行为）和捕获后圈养（鱼类必须在生态系统中恢复生态位）造成的。因此，我们建议将鱼放生在捕获它们的地方，以限制与归巢行为相关的运动。应尽可能避免被囚禁的时期。如果这是不可能的，则在分析数据时应考虑至少两到三周的适应期。行进的距离明显高于随后的站点保真期（几公里与几百米）。我们假设这些不稳定的模式可能是由鱼类实验性迁移（归巢行为）和捕获后圈养（鱼类必须在生态系统中恢复生态位）造成的。因此，我们建议将鱼放生在捕获它们的地方，以限制与归巢行为相关的运动。应尽可能避免被囚禁的时期。如果这是不可能的，则在分析数据时应考虑至少两到三周的适应期。行进的距离明显高于随后的站点保真期（几公里与几百米）。我们假设这些不稳定的模式可能是由于鱼类实验性迁移（归巢行为）和捕获后圈养（鱼类必须在生态系统内恢复生态位）所致。因此，我们建议将鱼放生在捕获它们的地方，以限制与归巢行为相关的运动。应尽可能避免被囚禁的时期。如果这是不可能的，则在分析数据时应考虑至少两到三周的适应期。我们假设这些不稳定的模式可能是由鱼类实验性迁移（归巢行为）和捕获后圈养（鱼类必须在生态系统中恢复生态位）造成的。因此，我们建议将鱼放生在捕获它们的地方，以限制与归巢行为相关的运动。应尽可能避免被囚禁的时期。如果这是不可能的，则在分析数据时应考虑至少两到三周的适应期。我们假设这些不稳定的模式可能是由鱼类实验性迁移（归巢行为）和捕获后圈养（鱼类必须在生态系统中恢复生态位）造成的。因此，我们建议将鱼放生在捕获它们的地方，以限制与归巢行为相关的运动。应尽可能避免被囚禁的时期。如果这是不可能的，则在分析数据时应考虑至少两到三周的适应期。