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首页> 外文期刊>Marine ecology progress series >Size estimation of circular home range from fish mark-release-(single)-recapture data: case study of a small labrid targeted by recreational fishing
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Size estimation of circular home range from fish mark-release-(single)-recapture data: case study of a small labrid targeted by recreational fishing

机译：从鱼类标记释放（（单个））捕获数据估算圆形渔场范围的大小：以休闲捕鱼为目标的小平原的案例研究

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摘要

Contrary to common belief, empirical evidence shows that a number of marine littoral fish species tend to remain in a small geographic area. Despite the growing awareness about the consequences of reduced mobility (e.g. design of marine protected areas), an accurate description of fish movement is technically difficu thus, it is usually not considered. Mark-release-(single)-recapture (MRsR) data obtained from externally tagged fish that are returned by fishermen or recreational fishers are potentially useful for describing fish movement. The present study is a methodological contribution aimed at demonstrating a simple analytic strategy for estimating the size of the circular home range (i.e. the area where a fish spends most of the time) from MRsR data. This analytic strategy is not adequate for pelagic or large predators moving at the oceanic scale but could be suitable for some reef or littoral fish. The estimates obtained by this method are robust even if (1) the number of recaptured fish is small, (2) fishing effort or habitat suitability displays some spatial variability and (3) fish display some intra-specific variability. Based on only 32 recaptures, our data demonstrate that Con's julis (a small labrid targeted by recreational fishers) is more sedentary than previously assumed; this fish spends 95 % of its time within an area 227 m in radius (Bayesian 95 % credibility interval: 192 to 275 m).
机译：与普遍的看法相反，经验证据表明，一些海洋沿海鱼类物种倾向于留在较小的地理区域内。尽管人们日益认识到行动不便的后果（例如，海洋保护区的设计），但在技术上很难准确描述鱼类的活动；因此，通常不考虑它。从渔民或休闲渔民返回的外部标记鱼获得的标记释放（单个）捕获数据（MRsR）对于描述鱼的活动可能很有用。本研究是一种方法论贡献，旨在展示一种简单的分析策略，用于根据MRsR数据估算圆形家园范围（即鱼类大部分时间都在其中度过的区域）的大小。这种分析策略并不适合在海洋范围内移动的中上层或大型捕食者，但可能适用于某些礁石或沿海鱼类。即使（1）捕获的鱼类数量少，（2）捕捞努力或栖息地适应性显示出一定的空间变异性，以及（3）鱼显示出种内变异性，通过这种方法获得的估算值仍是可靠的。仅根据32次捕获，我们的数据表明Con的julis（休闲垂钓者瞄准的一个小台阶）比以前设想的久坐不动；这条鱼的95％的时间都在半径227 m的区域内度过（贝叶斯95％的可信度区间为192至275 m）。

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  • 来源
    《Marine ecology progress series》 |2011年第26期|p.87-97|共11页
  • 作者

    M. Palmer; S. Balle; D. March; J. Alos; M. Linde;

  • 作者单位

    Instituto Mediterraneo de Estudios Avanzados IMEDEA (CSIC UIB), C/ Miquel Marques 21, 07190 Esporles (Mallorca), Spain;

    Instituto Mediterraneo de Estudios Avanzados IMEDEA (CSIC UIB), C/ Miquel Marques 21, 07190 Esporles (Mallorca), Spain;

    Instituto Mediterraneo de Estudios Avanzados IMEDEA (CSIC UIB), C/ Miquel Marques 21, 07190 Esporles (Mallorca), Spain;

    Instituto Mediterraneo de Estudios Avanzados IMEDEA (CSIC UIB), C/ Miquel Marques 21, 07190 Esporles (Mallorca), Spain;

    Instituto Mediterraneo de Estudios Avanzados IMEDEA (CSIC UIB), C/ Miquel Marques 21, 07190 Esporles (Mallorca), Spain;

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  • 正文语种 eng
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  • 关键词

    fish movement; home range; external t-bar anchor tags; recreational fishing;

    机译：鱼类运动;家庭范围;外部t型锚标签;休闲钓鱼;

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