Previous work suggests that Oregon estuaries function as nursery habitat and may play an important role in settlement of Black Rockfish Sebastes melanops. No research, however, has been conducted on juvenile Black Rockfish feeding ecology in estuarine habitats, which is necessary to evaluate habitat use and quality. We examined stomach contents and carbon and nitrogen stable isotope ratios for juvenile Black Rockfish collected from May to September in 2016 and 2017 at both anthropogenic (dock) and natural (eelgrass Zostera marina) habitats in Yaquina Bay, a marine‐dominated estuary on the central Oregon coast. We found consumption of 94 different prey items, the majority of which are estuary derived, and benthic prey were most frequently consumed. In general, it appears that fish are feeding in the habitat in which they are caught, with marine‐fouling prey being consumed in greater abundances at the dock habitat, whereas algae‐ or eelgrass‐associated species were consumed in greater abundances at the eelgrass habitat. The increase in both δ¹⁵N and δ¹³C values in muscle tissue seasonally and the positive correlation with upwelling in 2016 suggests that upwelled, oceanic waters were the primary source of nutrients to Yaquina Bay in 2016. The high variability in δ¹⁵N and general increase in δ¹³C seasonally in 2017 suggests that oceanic waters were still present but may not have been the dominant nutrient source. Yaquina Bay appears to be an important foraging ground for juvenile Black Rockfish during summer months, providing a diversity of prey items, with special importance of benthic and eelgrass‐associated prey. Our results support the hypothesis that estuaries can function as a nursery habitat for Black Rockfish, although additional data is needed to provide an absolute designation. Changes in benthic communities or available habitat may have negative effects on foraging ability, and thus nursery function, and should be considered during management decisions.

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基于喂养-生态学的黑岩鱼河口苗圃潜力评估方法

以前的研究表明，美国俄勒冈州河口作为苗圃栖息地和黑石斑鱼的结算可以发挥重要的作用平鲉属melanops。然而，尚未对河口栖息地的幼年黑石鱼饲养生态进行任何研究，这对于评估栖息地的利用和质量是必要的。我们研究了2016年和2017年5月至9月在人为（船坞）和天然（鳗草Zostera码头）收集的幼年黑石鱼的胃内容物和碳氮稳定同位素比）栖息在俄勒冈州中部海岸以海洋为主的河口亚奎那湾的栖息地。我们发现食用了94种不同的猎物，其中大多数来自河口，而底栖猎物最常被食用。一般而言，鱼类似乎是在捕捞的栖息地中觅食的，在码头栖息地以大量捕捞海洋污染猎物，而在鳗e栖息地以海藻或鳗草为伴的物种被大量捕食。 。在两个δ的增加¹⁵ N和δ ^13个肌肉组织季节性和与在2016年涌表明上涌的正相关关系，C值，海洋水域营养素Yaquina湾的主要来源在2016年的高可变性在δ ¹⁵N和在δ普遍增加¹³季节性在2017Ç表明，海洋水域仍然存在但可能尚未主导营养源。Yaquina海湾在夏季月份似乎是幼年黑石鱼的重要觅食地，提供了各种猎物，特别是与底栖生物和鳗草相关的猎物。我们的结果支持以下假设：河口可以充当黑石鱼的苗圃栖息地，尽管需要额外的数据来提供绝对名称。底栖生物群落或可用栖息地的变化可能对觅食能力产生负面影响，从而对苗圃功能产生负面影响，应在管理决策时予以考虑。