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This data set includes nutrient measurements of water samples collected at hydrographic stations from the Research Vessel (R/V) Sikuliaq during the Arctic Chief Scientist Training cruise June 6–12, 2023 sponsored by the University National Oceanographic Laboratory System (UNOLS) Arctic Icebreaker Coordinating Committee and the National Science Foundation. SKQ202309T was utilized as a training expedition for early-career Arctic oceanographers, focusing on skills essential for leading research cruises. Training topics centered on logistics, how to request time on ships, how to coordinate personnel and equipment, how to plan for operations and survey tasks at sea, how to work with vessel crew and staff, and how to edit research plans based on field conditions. Participants collected various data sets opportunistically throughout the research training. The cruise transited from Seward to Nome and water samples were collected at six hydrographic stations for nutrients (this data set). Specifically, this data set contains nutrient (total dissolved phosphorus (TDP), total dissolved nitrogen (TDN), phosphate, and nitrate+nitrite) measurements at surface and above seabed water depths. Bottle samples were collected in high-density polyethylene (HDPE) bottles which were rinsed at least three times before filling. The bottles were frozen at -40 Celsius (C).
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Microbial community structure (DNA) and metabolic data (oxygen utilization) from Coastal Alaska during the 2023 Arctic Chief Scientist Training Cruise
These data were extracted from water samples collected from R/V Sikuliaq hydrographic stations during the 2023 University National Oceanographic Laboratory System (UNOLS) and Arctic Icebreaker Coordinating Committee (AICC) sponsored Arctic Chief Scientist Cruise. The primary goal of this program is to provide hands on training for early career researchers to gain skills and confidence in organizing and leading polar scientific research expeditions. The 2023 expedition (SKQ202309T; June 6–12) followed a coastal Alaska cruise track through the Aleutian Islands and across the Bering Sea. This dataset was specifically collected to provide a survey of microbial community composition and metabolic activity for this cruise transect. At eight stations, seawater microbial community composition was measured broadly using amplicon gene sequencing (16S/18S ribosomal ribonucleic acid (rRNA) gene and Synechcoccus internal transcribed spacer (ITS) region) and metagenomic sequencing (data available through the National Center for Biotechnology Information; NCBI BioProject ID PRJNA1240040). At three stations, oxygen utilization assays were additionally used to measure rates of net community production and community respiration (data provided here).
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- Award ID(s):
- 2303606
- PAR ID:
- 10588560
- Publisher / Repository:
- NSF Arctic Data Center
- Date Published:
- Subject(s) / Keyword(s):
- microbes metagenomics amplicon sequencing oxygen respiration
- Format(s):
- Medium: X Other: text/xml
- Sponsoring Org:
- National Science Foundation
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