Compilation of new estimations on trophic positions of marine biota from the temperate Atlantic and western Mediterranean

Oceanic food webs are organized in a continuum from microbial to metazoan linked by trophic interactions. Assessment of the position of organisms in the food web, i.e., their Trophic Level (TL) can be made by from direct analyses of stomach contents or indirectly using tracers like stable isotopes. The present file gives TL for marine organism derived from isotopic data (δ15N) presented in Olivar et al. (submitted to PANGAEA). This file follows a previous data file on TL of mesopelagic organism by Silva et al. (2022) and keeps the same layout. We present estimates of Trophic Levels from 770 samples encompassing 32 species of mesopelagic fish, 7 of crustacean decapods, and 17 species of cetaceans. Fish and crustacean samples come from the temperate Atlantic (Azores, Bay of Biscay, western Iberian Peninsula), and from the western Mediterranean. […]

海洋食物网由微生物至多细胞生物连续组织而成，并通过营养相互作用相互连接。评估生物在食物网中的位置，即其营养级（TL），可通过直接分析胃内容物或间接使用示踪剂如稳定同位素来实现。本文件提供了由 Olivar 等人（提交至 PANGAEA）提供的同位素数据（δ15N）所推导出的海洋生物的营养级。本文件遵循 Silva 等人（2022年）关于中层浮游生物营养级的前一个数据文件，并保持相同的布局。我们展示了涵盖770个样本的营养级估算，这些样本包括32种中层浮游鱼类、7种甲壳类十足目生物和17种鲸类。鱼类和甲壳类样本来自温带大西洋（亚速尔群岛、比斯开湾、伊比利亚半岛西部）以及西地中海。