In the north Patagonian region of the Argentinean Continental Shelf, the San Jorge Gulf (SJG; 45°‐47°S, 65°30ʹ‐67°30ʹW) is the main nursery ground of age‐0+ Argentine hake Merluccius hubbsi Marini, 1933, one of the most important fishery resources in Argentina. The gulf exhibits strong seasonal and spatial fluctuations in environmental features, which might affect survival of age‐0+ individuals and recruitment to the adult population. Our main goal was to evaluate the seasonal and spatial dynamics of their nutritional status within the SJG in winter 2016, spring 2016 and summer 2017. Condition indices (relative condition factor K_n, hepatosomatic index HSI and liver lipid content %L) and diet information (feeding incidence and relative importance of prey) were combined with physical (temperature and salinity) and biological (satellite chlorophyll‐a concentration; chl‐a) data. Age‐0+ condition indices and prey intake showed significant seasonal variations, with minimum values in winter, intermediate in summer and maximum in spring, strongly coupled to the mean chl‐a concentration in each season. Herbivorous euphausiids Euphausia spp. were the preferred prey along the study period. A bottom‐up effect on condition of age‐0+ hake is suggested, manifested as lower condition values in winter, the less productive season. Spatially, better conditioned individuals matched sectors of the gulf where chl‐a concentrations were higher, coupled to the presence of frontal systems. Monitoring age‐0+ hake nutritional status is relevant in the current global change scenario, which might modify phytoplankton biomass and composition and, consequently, the herbivorous zooplankton abundances.

中文翻译：

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1933年在阿根廷圣豪尔赫湾（阿根廷）的0岁以上阿根廷无须鳕Merluccius hubbsi Marini的季节和空间变化：

在阿根廷大陆架的北巴塔哥尼亚地区，圣豪尔赫湾（SJG; 45°-47°S，65°30ʹ-67°30ʹW）是0岁以上的阿根廷无须鳕的幼稚园Merluccius hubbsi Marini，1933年，阿根廷最重要的渔业资源之一。海湾在环境特征方面表现出强烈的季节性和空间波动，这可能影响0岁以上年龄段个体的生存和成年人口的征募。我们的主要目标是评估2016年冬季，2016年春季和2017年夏季SJG中其营养状况的季节和空间动态。条件指数（相对条件因子K _n，肝体指数HSI和肝脂质含量％L）和饮食信息（摄食率和猎物的相对重要性）与物理（温度和盐度）和生物（卫星叶绿素a浓度；chl- a）数据结合在一起。年龄-0 +条件指数和猎物摄取表明显著季节变化，在冬季最小值，在夏季和最大中间在弹簧，强耦合至均值chl-一个在每个季节的浓度。食草紫up（Euphausiids）是整个研究期间首选的猎物。建议对0-0岁以上无须鳕的条件进行自下而上的影响，表现为冬季条件较低，生产季节较少。海湾的空间，更好地调节个人匹配的行业里chl-一浓度较高，再加上额叶系统的存在。监测0岁以上无须鳕的营养状况在当前的全球变化情况中很重要，这可能会改变浮游植物的生物量和组成，进而改变草食性浮游植物的丰度。