Understanding the basic biology of exploited fish populations, and how it changes across the waterscape, is essential to sustainable management. Biological features (age, growth, reproductive investment, and fish condition) for the newly described Deacon Rockfish Sebastes diaconus were evaluated between two different population segments, an exploited nearshore population and an unexploited offshore population, and were used to parameterize population dynamics models to evaluate how area-specific biological features influence measures of stock status. Monthly hook-and-line sampling was conducted for 1 year, with ˜50 fish collected per area per sampling period. Despite the relatively small (<50 km) distance between the two sampling areas, there were discernible differences in the biology of Deacon Rockfish. When fish of the same size-class were compared between offshore and nearshore segments, the unexploited offshore fish were older, suggesting that fishing may have decreased the overall age structure of the exploited nearshore population segment. Parameters of the von Bertalanffy growth model differed the most between the sexes and secondarily between the nearshore and offshore population segments. Length at 50% maturity was 28 cm and age at 50% maturity was 4.1 years for females, which is smaller and younger than previously reported in the literature. Deacon Rockfish were captured in both the nearshore and offshore areas throughout the year, which suggests that at least some component(s) of the population is present in both areas throughout the year. These differences had a nontrivial influence on measures of stock status and will be important to consider during future stock assessments and as management considers the effect of the recent reopening of the offshore population segment to fishing.

中文翻译：

---

俄勒冈水域执事石斑鱼 Sebastes diaconus 年龄、生长和成熟度的跨货架变异及其对种群状况的影响

了解被开发鱼类种群的基本生物学，以及它如何在整个水景中发生变化，对于可持续管理至关重要。新描述的 Deacon Rockfish Sebastes diaconus 的生物学特征（年龄、生长、繁殖投资和鱼类状况）在两个不同的种群之间进行了评估，一个开发的近岸种群和一个未开发的近海种群，并用于参数化种群动态模型，以评估特定区域的生物特征如何影响种群状况的测量。每月进行一次钩线采样，持续 1 年，每个采样周期每个区域收集约 50 条鱼。尽管两个采样区之间的距离相对较小（<50 公里），但执事石斑鱼的生物学存在明显差异。当在近海和近岸段之间比较相同大小级别的鱼类时，未开发的近海鱼类年龄更大，这表明捕捞可能降低了已开发近岸种群的整体年龄结构。von Bertalanffy 增长模型的参数在性别之间差异最大，其次是近岸和离岸人口部分。女性在 50% 成熟时的长度为 28 厘米，在 50% 成熟时的年龄为 4.1 岁，比之前文献中报道的更小更年轻。全年在近岸和近海地区都捕获了执事石斑鱼，这表明全年至少有一些种群存在于这两个地区。这些差异对种群状况的测量产生了重要影响，在未来的种群评估中以及管理层考虑最近重新开放近海种群对捕捞的影响时将是重要的考虑因素。女性在 50% 成熟时的长度为 28 厘米，在 50% 成熟时的年龄为 4.1 岁，比之前文献中报道的更小更年轻。全年在近岸和近海地区都捕获了执事石斑鱼，这表明全年至少有一些种群存在于这两个地区。这些差异对种群状况的测量产生了重要影响，在未来的种群评估中以及管理层考虑最近重新开放近海种群对捕捞的影响时将是重要的考虑因素。女性在 50% 成熟时的长度为 28 厘米，在 50% 成熟时的年龄为 4.1 岁，比之前文献中报道的更小更年轻。全年在近岸和近海地区都捕获了执事石斑鱼，这表明全年至少有一些种群存在于这两个地区。这些差异对种群状况的测量产生了重要影响，在未来的种群评估中以及管理层考虑最近重新开放近海种群对捕捞的影响时将是重要的考虑因素。这表明至少有一些人口组成部分全年都存在于这两个地区。这些差异对种群状况的测量产生了重要影响，在未来的种群评估中以及管理层考虑最近重新开放近海种群对捕捞的影响时将是重要的考虑因素。这表明至少有一些人口组成部分全年都存在于这两个地区。这些差异对种群状况的测量产生了重要影响，在未来的种群评估中以及管理层考虑最近重新开放近海种群对捕捞的影响时将是重要的考虑因素。