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首页> 外文期刊>ICES Journal of Marine Science >Rapid growth of wahoo (Acanthocybium solandri) in the Coral Sea, based on length-at-age estimates using annual and daily increments on sagittal otoliths
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Rapid growth of wahoo (Acanthocybium solandri) in the Coral Sea, based on length-at-age estimates using annual and daily increments on sagittal otoliths

机译：基于年龄的估计，使用矢状耳石的年度和每日增量，在珊瑚海中快速生长（Acanthocybium solandri）

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摘要

The wahoo (Acanthocybium solandri) is an economically important species incidentally caught in oceanic fisheries targeting tuna and coastal fisheries targeting mackerels. The age and growth of wahoo was examined using whole and sectioned otoliths from 395 fish (790-1770 mm L_F) sampled from the Coral Sea. Growth increments were more reliably assigned on whole otoliths than sectioned otoliths. Edge analyses revealed that growth increments were deposited annually, primarily between October and February. Furthermore, analysis of presumed daily microincrements showed that ~90% of fish had deposited the first "annual" growth increment by the 365th day, thereby indirectly validating annual increment formation. Wahoo were aged at between 108 d and 7 years, with 76% of fish being <2 year old. The specialized von Bertalanffy growth function provided the best fit to length-at-age data, with parameter estimates (sexes combined) of L_∞ = 1499 mm L_F, K = 1.58 year~(-1), and t_O = -0.17 years. The growth performance index for wahoo in the Coral Sea (ℓ' = 4.55) was one of the highest of all pelagic fish, with their growth and maximum size most similar to dolphinfish. This study suggests that wahoo are one of the fastest growing teleosts and provides growth parameter estimates that may facilitate future stock assessments and guide fisheries management.
机译：hoo（Acanthocybium solandri）是一种经济上重要的物种，偶然地被捕捞到以金枪鱼为目标的海洋渔业和以鲭鱼为目标的沿海渔业。使用从珊瑚海中取样的395条鱼类（790-1770 mm L_F）的整块和耳石来检查的年龄和生长。与分段耳石相比，整个耳石的生长增量分配更可靠。边缘分析显示，增长增量是每年沉积的，主要是在10月到2月之间。此外，对假定的每日微增量的分析表明，到第365天，约有90％的鱼类沉积了第一个“年度”增量，从而间接验证了年度增量的形成。 Wahoo的年龄在108 d至7岁之间，其中76％的鱼小于2岁。专门的von Bertalanffy增长函数最适合年龄长度的数据，其参数估计值（合并的性别）为L_∞= 1499 mm L_F，K = 1.58年〜（-1），t_O = -0.17年。在珊瑚海中的生长性能指数（ℓ'= 4.55）是所有中上层鱼类中最高的，其生长和最大大小与海豚鱼最相似。这项研究表明，hoo鱼是增长最快的硬骨鱼之一，并提供了生长参数估计值，可以促进将来的种群评估和指导渔业管理。

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  • 来源
    《ICES Journal of Marine Science》 |2013年第6期|1128-1139|共12页
  • 作者

    Mitchell T. Zischke; Shane P. Griffiths; Ian R. Tibbetts;

  • 作者单位

    School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia,Division of Marine and Atmospheric Research, Commonwealth Scientific and Industrial Research Organization, CPO Box 2583, Brisbane, QLD 4001, Australia;

    Division of Marine and Atmospheric Research, Commonwealth Scientific and Industrial Research Organization, CPO Box 2583, Brisbane, QLD 4001, Australia;

    School of Biological Sciences, The University of Queensland, Brisbane, QLD 4072, Australia;

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  • 正文语种 eng
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  • 关键词

    age; growth performance index; microincrements; pelagic: Scombridae; von Bertalanff.;

    机译：年龄;成长绩效指数微增量中上层：Scombridae;von Bertalanffy。;

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