Worldwide there have been declines in stocks of exploited sciaenids. Despite a long history of exploitation, there has been no study of the life history characteristics of the fishery-important sciaenid, teraglin, Atractoscion atelodus. This study describes the reproductive characteristics of A. atelodus within the major area of its distribution and fishery, New South Wales (NSW) Australia. Characteristics studied included the size and age at maturity, fecundity, spawning mode and season, and these are compared to congeneric species. Atractoscion atelodus displays year-round batch spawning behaviour with asynchronous oocyte development and indeterminate fecundity. This is unusual for sciaenids, which typically display spring-summer spawning and only over a few months. The length and age at which 50% of the population matures for both males and females is 36 cm fork length (FL) and 1 year, a smaller size compared to other closely related sciaenids. While the species displays resilient reproductive characteristics such as protracted year-round spawning, constant supply of vitellogenic oocytes and relatively small/young age at maturity, there are also characteristics that make it susceptible to over-exploitation. These include highly female skewed sex ratios, as well as their schooling and voracious feeding behaviour leading to the potential for high catch rates.

中文翻译：

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温带澳大利亚 sciaenid (teraglin, Atractoscion atelodus) 的繁殖策略

在世界范围内，被开发的沙棘鱼种群数量已经下降。尽管有着悠久的开发历史，但尚未对渔业重要的 sciaenid、teraglin、Atractoscion atelodus 的生活史特征进行研究。本研究描述了A的繁殖特征。atelodus在其分布和渔业的主要区域，新南威尔士州 (NSW) 澳大利亚。研究的特征包括成熟时的大小和年龄、繁殖力、产卵方式和季节，并将这些与同类物种进行比较。无节线虫显示具有异步卵母细胞发育和不确定繁殖力的全年批量产卵行为。这对于 sciaenids 来说是不寻常的，它们通常显示春夏季产卵，而且只持续几个月。50% 的雄性和雌性种群成熟时的长度和年龄为 36 厘米叉长 (FL) 和 1 岁，与其他密切相关的 sciaenids 相比，体型较小。虽然该物种表现出有弹性的繁殖特征，例如全年产卵时间长、生卵卵母细胞的持续供应以及成熟时相对较小/年轻的年龄，但也有一些特征使其易于过度开发。其中包括女性的性别比例高度偏斜，以及她们的学校教育和贪婪的喂养行为导致高捕获率的潜力。