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首页> 外文期刊>ICES Journal of Marine Science >Estimating survival of rock lobsters from long-term tagging programmes: how survey number and interval influence estimates
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Estimating survival of rock lobsters from long-term tagging programmes: how survey number and interval influence estimates

机译：通过长期标签计划估算龙虾的生存：调查数量和间隔如何影响估计

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摘要

A long-term tagging dataset on southern rock lobster (Jasus edwardsii) conducted at the Crayfish Point Scientific Reserve near Hobart, Tasmania, Australia, was used to determine how survey number and survey duration affected the precision of survival estimates of male and female lobsters to ensure sustainable exploitation of the population. Tagging surveys were undertaken twice yearly during 2000-2003 with unequal time-intervals between surveys and then once a year with equal time-intervals during 2004-2012 during the January-February period. The most parsimonious Cormack-Jolly-Seber model for estimating survival of lobsters was dependent on (i) timing of the tagging and recapture surveys, (ii) time between consecutive recapture surveys, and (iii) gender. The number of surveys required to provide a precise survival probability varied with gender and time between recapture surveys. For surveys where there was unequal time between recapture surveys, seven and five surveys were required for female and male lobsters, respectively, whereas only five surveys were required when annual surveys were undertaken. Thus, lobster tagging projects using annual surveys should ideally extend to at least 5 years, which is beyond the 3-year project duration common in marine science.
机译：在澳大利亚塔斯马尼亚州霍巴特附近的小龙虾点科学保护区进行的南部龙虾（Jasus edwardsii）长期标签数据集，用于确定调查数量和调查时间如何影响雄性和雌性龙虾的生存估计精度。确保对人口的可持续利用。标记调查在2000-2003年期间每年进行两次，两次调查之间的时间间隔不相等，然后在2004-2012年的1-2月期间每年进行一次，时间间隔相等。用于估计龙虾存活率的最简约的Cormack-Jolly-Seber模型取决于（i）标记和捕获调查的时间安排，（ii）连续捕获调查之间的时间间隔和（iii）性别。提供精确的生存概率所需的调查数量随性别和两次重新捕获调查之间的时间而异。对于两次重新捕获之间的时间间隔不相等的调查，雌龙虾和雄龙虾分别需要进行7次和5次调查，而进行年度调查时只需要进行5次调查。因此，使用年度调查的龙虾标记项目理想上应延长到至少5年，超过海洋科学中常见的3年项目期限。

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