Macrozoobenthos of the Pechora Bay - list of species with biomass and abundance, grab samples collected in 2020-2021 from 10 stations@en

The dataset comprises full list of species of macrozoobenthos collected from the Pechora Sea (SE Barents Sea). Grab samples were collected from 10 stations in the Pechora Bay from aboard RV Kartesh in 2020-2021. Macrobenthic invertebrates were identified with the maximum level of certainty through optical microscopy using regional taxonomic keys. All taxonomic names were standardised using the World Register of Marine Species (WoRMS). All specimens have been counted and weighted (wet biomass) on Ohaus Adventurer scales with reported accuracy to 0.01 g. Bivalve molluscs and gastropods were weighed in shells. Biomass (g. m-2) and abundance (ind m-2) are used to characterise macrozoobenthos.本数据集收录了采自巴伦支海东南部伯朝拉海（Pechora Sea）的大型底栖生物（macrozoobenthos）完整物种名录。2020—2021年，科研人员搭乘‘卡尔捷什号’科考船（RV Kartesh），于伯朝拉湾的10个站位采集了抓斗采样样品。研究人员依托区域分类学检索表，借助光学显微镜对大型底栖无脊椎动物进行鉴定，以达到最高鉴定置信度。所有分类单元名称均参照《世界海洋物种名录》（World Register of Marine Species, WoRMS）完成标准化处理。所有标本均通过奥豪斯 Adventurer 天平（称重精度达0.01克）进行计数与湿生物量称重，其中双壳类软体动物与腹足类动物均保留贝壳进行称重。数据集以单位面积湿生物量（单位：g·m⁻²）与丰度（单位：个·m⁻²）作为大型底栖生物的特征表征指标。