Full description
Samples were obtained from the RV Investigator from 14 May - June 5, 2019 as part of the 2nd Indian Ocean Expedition (IIOE-2). A total of 20 stations (90 nautical miles apart) from 39.5 deg south to 11.5 deg S along the 110 ?E meridian was sampled during both day and night. The samples were obtained by means of hauls using a EZ multi-net with a 1 m2 mouth area and eight operating nets (500 µm mesh). It was sent down to 500 m depth and oblique hauls discriminating the following depth strata of the water column were taken as the net was retrieved: 500-400, 400-300, 300-200, 200-150, 150-100, 100-50, 50 - 5 m. Each stratum was sampled for about 10 min and the volume of water filtered was obtained via use of an electronically recording flowmeter (mean volume: 486.5 m3). In summary, 273 discrete stratum hauls, covering the upper 500 m of the water column, were made along the 110 deg E transect in the Indian Ocean. After sorting and identification of fish specimens on board, samples were preserved in 10% buffered formalin with borax for later inspection in the laboratory.Lineage
Maintenance and Update Frequency: asNeededNotes
CreditThe MNF must be acknowledged in all outputs derived from Data and/or Samples collected by, or with support from, the MNF. Acknowledge the MNF in outputs with the statement: “We acknowledge the use of the CSIRO Marine National Facility (https://ror.org/01mae9353 ) in undertaking this research.” Acknowledgment and citations should be in all forms of publication including presentations (where the acknowledgement should be on the closing slide), journals, books, reports and related research outputs.
Data time period: 2019-05-17 to 2019-06-05
text: westlimit=109.8; southlimit=-39.5; eastlimit=110.1; northlimit=-11.4; projection=WGS 84 (EPSG:4326)
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Link to Data License / Attribution statements (Data Licensing)
url :
https://creativecommons.org/licenses/by/4.0/![]()
Export is csv or as a DwC archive for this and potentially other datasets from this voyage (Extract observations from Data Trawler)
Mesopelagic fish catch records of mainly larvae from 40 EZNet deployments. (Mesopelagic fish samples)
url :
https://www.marine.csiro.au/data/trawler/download.cfm?file_id=5259![]()
(View the dataset at the OBIS portal)
url :
https://obis.org/dataset/fe2e14f5-a1f8-4de8-806f-c1f86550616a![]()
Data formatted as DwC archive (View and download from the OBIS Australia IPT server)
url :
https://www.marine.csiro.au/ipt/resource.do?r=in2019_v03_mesopelagic![]()
Link to RV Investigator Survey Information, including voyage plans and summaries (RV Investigator Survey)
url :
https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=IN2019_V03![]()
(Marine National Facility)
url :
https://mnf.csiro.au/![]()
- global : 5ad87c65-c469-4b66-b22b-e250477379fc
