Sea ice biology and biogeochemistry data of Lincoln Sea 2018

Data were collected as part of the DiatomARCTIC project during the Multidisciplinary Arctic Program - Last Ice sampling campaign (82.576 N 62.471 W), 7-23 May, 2018. The bottom 10 cm of ice samples were collected during this time from neighbouring first-year and multi-year sea ice floes, from which the following parameters were determined: chlorophyll a, exopolymeric substances, ice algal taxonomic composition, oxygen-based net community production and bulk-ice nitrate, nitrite and phosphate concentrations. All samples were melted without dilution and were processed by K Campbell.

This work is a contribution to the Diatom ARCTIC project (NE/R012849/1; 03F0810A), part of the Changing Arctic Ocean program, jointly funded by the UKRI Natural Environment Research Council and the German Federal Ministry of Education (BMBF) and Fisheries and Oceans Canada (DFO) Science and the Marine Productivity Laboratory Program. The Multidisciplinary Arctic Program (MAP) - Last Ice is funded by Fisheries and Oceans Canada (DFO) Science in support of Tuvaijuittuq Marine Protected Area (MPA). Additional support was provided by Polar Continental Shelf Program (PCSP, Project 10718) and the Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Funds to CM and CHSR.

本数据集的采集工作依托DiatomARCTIC项目，完成于2018年5月7日至23日开展的北极多学科计划-末次冰区（Multidisciplinary Arctic Program - Last Ice）科考采样航次，采样点位为北纬82.576°、西经62.471°。本次采集了邻近的一年海冰与多年海冰浮冰的底部10厘米冰层样品，并对以下参数进行了测定：叶绿素a（chlorophyll a）、胞外聚合物（exopolymeric substances）、冰藻分类组成、基于氧气的净群落生产力，以及冰层整体的硝酸盐、亚硝酸盐与磷酸盐浓度。所有样品均未经稀释直接融解，由K Campbell完成实验处理。
本研究成果依托Diatom ARCTIC项目（项目编号：NE/R012849/1；03F0810A）产生，该项目隶属于北极变化海洋（Changing Arctic Ocean）计划，由英国研究与创新署自然环境研究理事会、德国联邦教育与研究部（BMBF）、加拿大渔业与海洋部科学局（DFO Science）以及海洋生产力实验室项目联合资助。北极多学科计划（Multidisciplinary Arctic Program, MAP）-末次冰区由加拿大渔业与海洋部科学局（DFO Science）资助，旨在支持图瓦尤图克海洋保护区（Tuvaijuittuq Marine Protected Area, MPA）的相关工作。本项目还获得了极地大陆架计划（Polar Continental Shelf Program, PCSP，项目编号10718）以及加拿大自然科学与工程研究理事会（NSERC）发现基金的额外资助，资助对象为CM与CHSR。