Abstract

When monitoring marine recreational fishers at sub-bio-regional scales—for example those who are accessing a Marine Park—on-site sampling is often required. This poses various logistical challenges, such as the efficient timing of intercept interviews. Here, we examine these challenges, combining trail cameras, closed-circuit television (CCTV), weather stations, and interviews at boat ramps that bracket an offshore Marine Park. Trail camera results were similar to those from a CCTV system co-located at one of the boat ramps. Fishers’ boat launches peaked early, but return times varied considerably by ramp and weather. Both the numbers of launches and trip durations were strongly responsive to good weather, particularly at ramps used for offshore fishing. Weather was a more important factor to predict the likelihood of intercept interview opportunities than holiday period, which may reflect changing dynamics in work culture and improvements in weather prediction. Interviewed fishers reported preferences to individual ramps over the fishing season and nearly all trips to the Marine Park were reported by fishers accessing just one ramp. The strong relationships between fishing, weather, and ramp, observed by the trail camera and correlated with the weather station data, may allow for the efficient targeting of intercept interviews and potentially the modelling of fishing effort.

中文翻译：

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追踪摄像机视频系统：研究它们在解释海洋，娱乐，拖船渔民在不同天气条件下进入海上海洋公园的模式时的效用

抽象的

在亚生物区域范围内监视海洋休闲渔民时（例如正在访问海洋公园的渔民），通常需要进行现场采样。这带来了各种后勤方面的挑战，例如有效的拦截采访时间安排。在这里，我们研究了这些挑战，将跟踪摄像机，闭路电视（CCTV），气象站以及在海上海岸公园的船舷坡道上进行采访相结合。追踪摄像头的结果类似于位于其中一个舷梯的CCTV系统的结果。渔民的船首发高峰达到高峰，但返回时间因坡道和天气而异。下水道的数量和行程时间都对良好的天气有强烈的反应，特别是在近海捕捞所用的坡道上。与假期相比，天气是预测拦截面试机会可能性的更重要因素，这可能反映了工作文化的变化和天气预报的改进。接受采访的渔民报告说，在捕鱼季节偏爱单个坡道，几乎所有到海洋公园的旅行都是由仅进入一个坡道的渔民报告的。追踪摄像机观察到的，与气象站数据相关的捕鱼，天气和坡度之间的紧密关系，可以有效地将拦截采访定为目标，并可能对捕捞努力进行建模。接受采访的渔民报告说，在捕鱼季节偏爱单个坡道，几乎所有到海洋公园的旅行都是由仅进入一个坡道的渔民报告的。追踪摄像机观察到的，与气象站数据相关的捕鱼，天气和坡度之间的紧密关系，可以有效地将拦截采访定为目标，并可能对捕捞努力进行建模。接受采访的渔民报告说，在捕鱼季节偏爱单个坡道，几乎所有到海洋公园的旅行都是由仅进入一个坡道的渔民报告的。追踪摄像机观察到的，与气象站数据相关的捕鱼，天气和坡度之间的紧密关系，可以有效地将拦截采访定为目标，并可能对捕捞努力进行建模。