Nitrogen isotopic compositions of midwater fish, K-Axis voyage of the Aurora Australia, 2016

Midwater fish nitrogen isotope data from the Kerguelen Axis ecosystem study (AAS_4344):

These data are based on samples collected as part of the Kerguelen Axis marine ecosystem study (AAS_4344), chief scientist Andrew Constable. This research was supported by the Australian government under the (i) Cooperative Research Centre Program through the Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC), (ii) Australian Antarctic Science Program (Projects 4343, 4344, 4347 and 4366), and (iii) Australian Research Council’s Special Research Initiative for Antarctic Gateway Partnership (Project ID SR140300001).

The preferred citation is:

Walters et al. Food sources and trophic structure of deep sea midwater (fish) food webs in the Southern Ocean as inferred from nitrogen isotopic compositions.

Midwater fish samples were collected on board the R.S.V. Aurora Australis during the austral summer of 2016 (22 January-17 February) as part of the Kerguelen Axis marine ecosystem study (AAS_4344). Samples were collected from 9 sampling stations along one transect from the Antarctic continental shelf to the BANZARE Bank over the Kerguelen Plateau. Midwater fish were sampled from the surface to 1000 m depth using an IYGPT (International Young Gadoid Pelagic Trawl) net equipped with a MIDOC (Mid-water Open Close) multiple cod-end device. Analyses focused on mesopelagic and bathypelagic fish taxa. The nitrogen isotopic composition of individual amino acids was measured in muscle tissue from each fish.

As of 2022-09-30, these data were still being worked up for publication.

克盖伦轴生态系统研究（AAS_4344）中层鱼氮同位素数据：
本数据集源自克盖伦轴海洋生态系统研究（AAS_4344）所采集的样本，该项目首席科学家为安德鲁·康斯特布尔（Andrew Constable）。本研究获澳大利亚政府资助，资助来源包括：(i) 南极气候与生态合作研究中心（Antarctic Climate and Ecosystems Cooperative Research Centre，缩写ACE CRC）下属的合作研究中心计划；(ii) 澳大利亚南极科学计划（项目编号4343、4344、4347及4366）；(iii) 澳大利亚研究委员会南极门户合作专项研究倡议（项目编号SR140300001）。

推荐引用格式为：
Walters等. 基于氮同位素组成推断的南大洋深海中层鱼类食物网的食物来源与营养结构。

2016年南大洋夏季（1月22日至2月17日），研究团队在“R.S.V. 极光南极号”（R.S.V. Aurora Australis）科考船上开展采样工作，作为克盖伦轴海洋生态系统研究（AAS_4344）的一部分。本次采样沿一条从南极大陆架至克盖伦高原班扎雷浅滩的断面设置9个采样站位。研究人员使用搭载MIDOC（中层网开闭装置，Mid-water Open Close，缩写MIDOC）多网囊装置的IYGPT（国际幼鳕中层拖网，International Young Gadoid Pelagic Trawl，缩写IYGPT）网，在表层至1000米水深范围内采集中层鱼类样本。本次分析聚焦于中深海（mesopelagic）与深渊深海（bathypelagic）鱼类类群，并对每条鱼肌肉组织中的单体氨基酸氮同位素组成进行了测定。

截至2022年9月30日，本数据集仍在整理完善以用于正式发表。