Abstract

This article presents a data set on ash, proteins, lipids, carbohydrates, chitin, organic carbon (OC), total nitrogen (TN) and total phosphorus (TP) contents, macronutrients ratio (C, N, and P) and energy content of zooplankton (size fraction >500 μm) from the Kara Sea. Zooplankton samples were collected at 22 stations during the 76th interdisciplinary cruise of the R/V “Akademik Mstislav Keldysh” in July 2019. Proteins constituted the main component of zooplankton dry weight (43.39 ± 2.57% DW), while lipids amounted to 26.67 ± 2.28% DW and carbohydrates reached 4.91 ± 0.49% DW. Ash and chitin contents were 18.78 ± 1.39% and 3.68 ± 0.37% DW, respectively. The concentrations of macronutrients (C, N, and P) corresponded to the values of Arctic zooplankton and averaged 47.52 ± 1.12% for OC, 7.34 ± 0.39% for TN, and 0.70 ± 0.04% for TP of DW. The contribution of the individual components of the biochemical composition of zooplankton of the Kara Sea to the total OC revealed the dominant role of not only lipids but also proteins as compounds used by zooplankton in organic carbon accumulation. The Redfield ratio varied widely. The average values of C_6.6:N, C₇₀:P and N_10.5:P were low and reflected certain features of the biochemical composition of the Kara Sea zooplankton community in the spring. The energy content of zooplankton of the Kara Sea ranged from 18.3 to 25.58 J mg^-1 and averaged 20.25 ± 0.53 J mg^-1 DW. The proportions of lipids and proteins in the total energy reserve of zooplankton were ~47 and ~46%, respectively, while the share of carbohydrates, their derivatives and chitin amounted to ~7%.

中文翻译：

---

卡拉海浮游动物的生化组成和能量含量

摘要

本文提供了有关灰分，蛋白质，脂质，碳水化合物，几丁质，有机碳（OC），总氮（TN）和总磷（TP）含量，常量营养素比率（C，N和P）和能量含量的数据集来自卡拉海的浮游动物（尺寸分数> 500μm）。在2019年7月R / V“ Akademik Mstislav Keldysh”轮第76次跨学科巡游期间，在22个站位采集了浮游动物样本。蛋白质是浮游动物干重的主要成分（43.39±2.57％DW），而脂质则为26.67±2.28 DW％和碳水化合物达到4.91±0.49％DW。灰分和几丁质含量分别为DW的18.78±1.39％和3.68±0.37％。大量营养物（C，N和P）的浓度与北极浮游动物的值相对应，OC的平均值为47.52±1.12％，TN的平均值为7.34±0.39％，DW的TP平均值为0.70±0.04％。卡拉海浮游动物生化成分的各个组成部分对总OC的贡献揭示了脂类以及作为浮游动物在有机碳积累中使用的化合物的蛋白质的主要作用。雷德菲尔德比率变化很大。C的平均值_6.6：N，C ₇₀：P和N _10.5：P较低，反映了春季卡拉海浮游动物群落生化成分的某些特征。卡拉海浮游动物的能量含量在18.3至25.58 J mg ^-1之间，平均为20.25±0.53 J mg ^-1 DW。浮游动物总能量储备中脂质和蛋白质的比例分别为〜47和〜46％，而碳水化合物，其衍生物和几丁质的比例为〜7％。