Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 329 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Downloads
Download the latest version of this resource data as a Darwin Core Archive (DwC-A) or the resource metadata as EML or RTF:
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Vishnyakova K (2016): Antarctic fish by-catch observation during krill fishing cruise onboard polish trawler Dalmor II (March to July 2011). v1.7. Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES). Dataset/Occurrence. http://gp.sea.gov.ua:8082/ipt/resource?r=fish_data_krill_fishing_antarctic&v=1.7
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES). To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: e13faa2d-3cd9-4716-aeb1-1a489d9b69b4. Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.
Keywords
Antarctic fish; Euphausia superba; antarctic krill; observation; occurence; Observation
Contacts
Who created the resource:
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Who filled in the metadata:
Geographic Coverage
359 Antarctic krill catches were analysed for by-catch, it took 48.5% of observed catches and 31.3% of total catches. Fish by-catches were usual in the sector 48.1 (89.1% of cases); the most of by-caught fishes belonged to families Nototheniidae (NOX) (66.3%). Fish by-catches in the sector 48.2 were recorded in 50% examined catches; the most frequent were fishes of families Myctophidae (LXX).
| Bounding Coordinates | South West [-62.08, -59.27], North East [-60.16, -46.53] |
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Temporal Coverage
| Start Date / End Date | 2011-03-04 / 2011-06-03 |
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Sampling Methods
In order to quantify the by-catch of fish of a range of sizes, the following sorting method uses a standard sub-sampling approach that allows the user to re-sort smaller samples to ensure that small/larval fish, that may go undetected in larger samples, are recorded appropriately. 1. Ensuring all large fish removed from conveyor during this haul/time period are retained for subsequent weighing and identification. 2. Taking a 25 kg sample, remove all fish and record the total mass of each fish species. 3. Taking a 10 kg sub-sample from the remaining krill sample. 4. Sorting carefully through the 10 kg sub-sample and remove and record the total mass of each fish species. 5. Taking two 1 kg sub-samples from the remaining krill sample. 6. Sorting through each of these 1 kg sub-samples and remove and record the total mass of any remaining fish species (paying particular attention to larval fish that may be transparent).
| Study Extent | statistical subarea 48.2; |
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Method step description:
Additional Metadata
marine, harvested by iOBIS
| Alternative Identifiers | http://gp.sea.gov.ua:8082/ipt/resource?r=fish_data_krill_fishing_antarctic |
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