College of Marine Science, Shanghai Ocean University, Shanghai, 201306, China; National Distant-water Fisheries Engineering Research Center, Shanghai, 201306, China; National Data Centre for Distant-Water Fisheries of China, Shanghai, 201306, China.
College of Marine Science, Shanghai Ocean University, Shanghai, 201306, China; National Distant-water Fisheries Engineering Research Center, Shanghai, 201306, China; National Data Centre for Distant-Water Fisheries of China, Shanghai, 201306, China.
Mar Environ Res. 2023 Oct;191:106153. doi: 10.1016/j.marenvres.2023.106153. Epub 2023 Aug 21.
This study investigated the feeding habits of black croaker (Atrobucca nibe) to fully understand its role in the food web in southern coastal waters of Zhejiang, China. In total, 225 black croakers were collected in a bottom trawl survey, of which 195 were used for the stomach contents analysis and 30 for high-throughput sequencing (HTS). Both approaches showed that the main prey was shrimp, with Alpheus japonicus being the most predominant. In addition, black croaker also fed on other benthic species, suggesting that it was a demersal predator. Feeding intensity also varied with black croaker body length, as did prey preference, from small-sized species to larger species with increases in fish size; in addition, prey species were more diverse in the large-bodied prey group. Canonical correspondence analysis indicated that the feeding habit of black croaker was most significantly correlated with temperature and dissolved oxygen. HTS was shown to be a feasible high precision semi-quantitative analytical approach, although it must be combined with morphological methods to obtain more complete feeding data; thus, it could provide an effective scientific basis for feeding ecology studies of marine organisms.
本研究调查了黑鲷（Atrobucca nibe）的摄食习性，以充分了解其在中国浙江南部沿海海域食物网中的作用。共采集了 225 尾黑鲷进行底层拖网调查，其中 195 尾用于胃内容物分析，30 尾用于高通量测序（HTS）。这两种方法都表明，虾类是黑鲷的主要食物来源，其中日本鼓虾（Alpheus japonicus）最为常见。此外，黑鲷还以其他底栖物种为食，表明它是一种底栖捕食者。摄食强度也随黑鲷体长的变化而变化，随着鱼类体型的增大，对小型物种的偏好也随之增加；此外，在大型猎物组中，猎物物种更加多样化。典范对应分析表明，黑鲷的摄食习性与温度和溶解氧的关系最为密切。HTS 被证明是一种可行的高精度半定量分析方法，尽管它必须与形态学方法相结合才能获得更完整的摄食数据；因此，它可以为海洋生物的摄食生态学研究提供有效的科学依据。
