OCCURRENCE

Antarctic fish by-catch observation during krill fishing cruise onboard polish trawler Dalmor II (March to July 2011)

Latest version published by Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES) on 08 June 2016 Ukrainian Scientific Centre of Ecology of the Sea (UkrSCES)
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).

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:

Data as a DwC-A file download 329 records in English (13 kB) - Update frequency: unknown
Metadata as an EML file download in English (9 kB)
Metadata as an RTF file download in English (8 kB)

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:

Karina Vishnyakova
Scientific Researcher
UkrSCES
89, Frantsuzskyi blvd.
65009 Odessa
UA

Who can answer questions about the resource:

Karina Vishnyakova
Scientific Researcher
UkrSCES
89, Frantsuzskyi blvd.
65009 Odessa
UA
Oleksandr Neprokin
Head of Department
UkrSCES
89, Frantsuzskyi blvd.
65009 Odessa
UA
Oleksandr Lepyoshkin
Scientific Researcher
UkrSCES
89, Frantsuzskyi blvd.
65009 Odessa
UA

Who filled in the metadata:

Karina Vishnyakova
Scientific Researcher
UkrSCES
89, Frantsuzskyi blvd.
65009 Odessa
UA

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]

Temporal Coverage

Start Date / End Date 2011-03-04 / 2011-06-03

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;

Method step description:

  1. https://www.ccamlr.org/en/system/files/obsman.pdf

Additional Metadata

marine, harvested by iOBIS