A unique demersal fish fauna in the Chukchi Borderland, Central Arctic Ocean
Data files
Jun 05, 2025 version files 425.54 KB
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1.1_List_of_fish_species_for_the_measurement_of_otolith_microchemistry.csv
2.86 KB
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1.2_Stations_information_of_fish_with_otolith_microchemistry_measurement_in_the_Chukchi_Borderland__CAO.csv
1.36 KB
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2._Data_of_spot-sampling_in_otolith_core_and_edge.xlsx
30.55 KB
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3.1_Line_scan_Arctic_cod.xlsx
45.06 KB
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3.2_Line_scan_Artediellus_atlanticus.xlsx
38.16 KB
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3.3_Line_scan_Lycodes_adolfi_Arc_N9_P15-3.xlsx
27.38 KB
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3.4_Line_scan_Lycodes_adolfi_Arc_N11_P3-8-1.xlsx
25.04 KB
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3.5_Line_scan_polar_cod_Arc_N9_BT01-21.xlsx
70.69 KB
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3.6_Line_scan_polar_cod_Arc_N11_E1-1.xlsx
55.34 KB
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3.7_Line_scan_polar_cod_Arc_N11_R1-2-1.xlsx
45.44 KB
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3.8_Line_scan_Triglops_nybelini.xlsx
23.25 KB
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3.9_Line_scan_walleye_pollock.xlsx
29.19 KB
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4._Stable_isotope_ratios_of_fishes_in_the_Chukchi_Borderland__Central_Arctic_Ocean.xlsx
24.30 KB
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README.md
6.93 KB
Abstract
The samples of fish were collected in the Chukchi Borderland (east to west: 179.99°E to 154.68°W, anticlockwise; south to north: 73.69°N to 78.38°N), Central Arctic Ocean by the Chinese National Arctic Research Expedition (CHINARE) using bottom trawls during voyages from 2017 to 2020 (detailed in the documents). A suite of elemental concentrations of ratios in the edge and core of the otolith samples were measured in spot mode via laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS) at Createch Testing Technology (Tianjin, China) using an ICP–MS instrument (Analytik Jena PlasmaQuant MS, Denmark) coupled with a 193 nm excimer laser ablation system (RESOlution SE 193 nm, RESOlution, Australia). Off-line processing of the analytical data, including background and analyte signals, such as time-drift correction and quantitative calibration, was performed via ICPMSDataCal software. The continuous line scans of otolith were conducted at the Analytical and Testing Center of the Third Institute of Oceanography, Ministry of Natural Resources, China, using an ICP–MS instrument (iCAP RQ, Thermo, USA) coupled with a 193 nm excimer laser ablation system (RESOlution SE 193 nm, RESOlution, Australia). In addition, we took dorsolateral muscle from fish individuals, and the ratios of heavy to light carbon (C) and nitrogen (N) were measured at the Analytical and Testing Center of the Third Institute of Oceanography, Ministry of Natural Resources, China using a Vario ISOTOPE cube elemental analyser (Elementar Analysensysteme GMBH, Hanau, Germany) coupled to an IsoPrime100 isotope ratio mass spectrometer (Isoprime, Cheadle, United Kingdom). Fish body lengths were measured to an accuracy of 1 mm.
https://doi.org/10.5061/dryad.1c59zw45p
Description of the data and file structure
Fish collection
The samples of fish were collected in the Chukchi Borderland (east to west: 179.99°E to 154.68°W, anticlockwise; south to north: 73.69°N to 78.38°N), Central Arctic Ocean by the Chinese National Arctic Research Expedition (CHINARE) using bottom trawls during voyages from 2017 to 2020 (detailed in the documents).
Otolith microchemistry
A suite of elemental concentrations of 43CaCO3 (weight percent, wt%), 88Sr (parts per million, ppm), and 137Ba (parts per million, ppm) in the edge and core of the otolith samples were measured in spot mode via laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS) at Createch Testing Technology (Tianjin, China) using an ICP–MS instrument (Analytik Jena PlasmaQuant MS, Denmark) coupled with a 193 nm excimer laser ablation system (RESOlution SE 193 nm, RESOlution, Australia). Off-line processing of the analytical data, including background and analyte signals, such as time-drift correction and quantitative calibration, was performed via ICPMSDataCal software. The continuous line scans of otolith were conducted at the Analytical and Testing Center of the Third Institute of Oceanography, Ministry of Natural Resources, China, using an ICP–MS instrument (iCAP RQ, Thermo, USA) coupled with a 193 nm excimer laser ablation system (RESOlution SE 193 nm, RESOlution, Australia). The analytical data were reduced by Iolite version 4.The dataset contains a .docx file listing the fish species with the otolith microchemical measurements and their station information (No. 1), a .xlsx file listing the elemental ratios determined via spot sampling in the otolith core and edge zones (No. 2), as well as nine .xlsx files of continuous line scans across the otolith structures (Nos. 3.1 to 3.9).
Stable isotope analyses
We took dorsolateral muscle from fish individuals, and the ratios of heavy to light carbon (C) and nitrogen (N) were measured at the Analytical and Testing Center of the Third Institute of Oceanography, Ministry of Natural Resources, China using a Vario ISOTOPE cube elemental analyser (Elementar Analysensysteme GMBH, Hanau, Germany) coupled to an IsoPrime100 isotope ratio mass spectrometer (Isoprime, Cheadle, United Kingdom). Fish body lengths were measured to an accuracy of 1 mm (file No, 4).
Files and variables
File: 1.1_List_of_fish_species_for_the_measurement_of_otolith_microchemistry.csv
Description: This data file lists individual fish that were collected in different years and places. For each fish, it includes the species name, a unique ID, the year and location where it was collected, and which methods were used to analyze its otoliths (ear bones). Two analysis methods are mentioned: "spot sampling" and "line sampling," which help researchers learn about the fish's environment and life history.
File: 1.2_Stations_information_of_fish_with_otolith_microchemistry_measurement_in_the_Chukchi_Borderland__CAO.csv
Description: This data file shows information about research stations where fish were collected. For each station, it lists the date, the research vessel used (all samples here are from Xue Long), the location (longitude and latitude), the depth of the water, and the type of gear used for sampling (in this case, a "triangle trawl" net).
File: 2._Data_of_spot-sampling_in_otolith_core_and_edge.xlsx
Description: The elemental ratios determined via spot sampling in the otolith core and edge zones (consisting of four spreadsheets) . It shows different sample taken from a specific station (2018_P15) and specific part of the otolith (core or edge). The table includes labels identifying the samples and shows the concentrations of various elements (like sodium, magnesium, silicon, phosphorus, etc.) measured in parts per million (ppm) or weight percent (wt%).
Variables
- 43CaCO3 (weight percent, wt%), 88Sr (parts per million, ppm), and 137Ba (parts per million, ppm)
File: 3.1_Line_scan_Arctic_cod.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li (Lithium), Mg (Magnesium), Ca (Calcium), Mn (Manganese), Zn (Zinc), Sr (Strontium), and Ba (Barium)
File: 3.2_Line_scan_Artediellus_atlanticus.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 3.3_Line_scan_Lycodes_adolfi_Arc_N9_P15-3.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 3.5_Line_scan_polar_cod_Arc_N9_BT01-21.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 3.4_Line_scan_Lycodes_adolfi_Arc_N11_P3-8-1.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 3.7_Line_scan_polar_cod_Arc_N11_R1-2-1.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 3.9_Line_scan_walleye_pollock.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 3.8_Line_scan_Triglops_nybelini.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 3.6_Line_scan_polar_cod_Arc_N11_E1-1.xlsx
Description: The elemental ratios determined via continuous line scans across the otolith structures.
Variables
- Li, Mg, Ca, Mn, Zn, Sr, Ba
File: 4._Stable_isotope_ratios_of_fishes_in_the_Chukchi_Borderland__Central_Arctic_Ocean.xlsx
Description: We took dorsolateral muscle from fish individuals, and the ratios of heavy to light carbon (C) and nitrogen (N) were measured at the Analytical and Testing Center of the Third Institute of Oceanography, Ministry of Natural Resources, China using a Vario ISOTOPE cube elemental analyser (Elementar Analysensysteme GMBH, Hanau, Germany) coupled to an IsoPrime100 isotope ratio mass spectrometer (Isoprime, Cheadle, United Kingdom). Fish body lengths were measured to an accuracy of 1 mm.
Variables
- the ratios of heavy to light carbon (C) and nitrogen (N)
The samples of fish were collected in the Chukchi Borderland (east to west: 179.99°E to 154.68°W, anticlockwise; south to north: 73.69°N to 78.38°N), Central Arctic Ocean by the Chinese National Arctic Research Expedition (CHINARE) using bottom trawls during voyages from 2017 to 2020 (detailed in the documents).
A suite of elemental concentrations of 43CaCO3 (weight percent, wt%), 88Sr (parts per million, ppm), and 137Ba (parts per million, ppm) in the edge and core of the otolith samples were measured in spot mode via laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS) at Createch Testing Technology (Tianjin, China) using an ICP–MS instrument (Analytik Jena PlasmaQuant MS, Denmark) coupled with a 193 nm excimer laser ablation system (RESOlution SE 193 nm, RESOlution, Australia). Off-line processing of the analytical data, including background and analyte signals, such as time-drift correction and quantitative calibration, was performed via ICPMSDataCal software. The continuous line scans of otolith were conducted at the Analytical and Testing Center of the Third Institute of Oceanography, Ministry of Natural Resources, China, using an ICP–MS instrument (iCAP RQ, Thermo, USA) coupled with a 193 nm excimer laser ablation system (RESOlution SE 193 nm, RESOlution, Australia). The analytical data were reduced by Iolite version 4.The dataset contains a .docx file listing the fish species with the otolith microchemical measurements and their station information (No. 1), a .xlsx file listing the elemental ratios determined via spot sampling in the otolith core and edge zones (No. 2), as well as nine .xlsx files of continuous line scans across the otolith structures (Nos. 3.1 to 3.9).
We took dorsolateral muscle from fish individuals, and the ratios of heavy to light carbon (C) and nitrogen (N) were measured at the Analytical and Testing Center of the Third Institute of Oceanography, Ministry of Natural Resources, China using a Vario ISOTOPE cube elemental analyser (Elementar Analysensysteme GMBH, Hanau, Germany) coupled to an IsoPrime100 isotope ratio mass spectrometer (Isoprime, Cheadle, United Kingdom). Fish body lengths were measured to an accuracy of 1 mm (file No, 4).