Description
Antarctic krill (Euphausia superba) and salps are major macroplankton contributors to Southern Ocean food webs and krill are also fished commercially. Managing this fishery sustainably, against a backdrop of rapid regional climate change, requires information on distribution and time trends. Many data on the abundance of both taxa have been obtained from net sampling surveys since 1926, but much of this is stored in national archives, sometimes only in notebooks. In order to make these important data accessible we have collated avail- able abundance data (numerical density, no. m−2) of postlarval E. superba and salp individual (multiple species, and whether singly or in chains). These were combined into a central database, KRILLBASE, together with en- vironmental information, standardisation and metadata. The aim is to provide a temporal-spatial data resource to support a variety of research such as biogeochemistry, autecology, higher predator foraging and food web mod- elling in addition to fisheries management and conservation. Previous versions of KRILLBASE have led to a series of papers since 2004 which illustrate some of the potential uses of this database. With increasing numbers of requests for these data we here provide an updated version of KRILLBASE that contains data from 15 194 net hauls, including 12 758 with krill abundance data and 9726 with salp abundance data. These data were collected by 10 nations and span 56 seasons in two epochs (1926–1939 and 1976–2016). Here, we illustrate the seasonal, inter-annual, regional and depth coverage of sampling, and provide both circumpolar- and regional-scale distri- bution maps. Krill abundance data have been standardised to accommodate variation in sampling methods, and we have presented these as well as the raw data. Information is provided on how to screen, interpret and use KRILLBASE to reduce artefacts in interpretation, with contact points for the main data providers.
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 21,901 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.
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:
Atkinson, A., Hill, S. L., Pakhomov, E. A., Siegel, V., Anadon, R., Chiba, S., Daly, K. L., Downie, R., Fielding, S., Fretwell, P., Gerrish, L., Hosie, G. W., Jessopp, M. J., Kawaguchi, S., Krafft, B. A., Loeb, V., Nishikawa, J., Peat, H. J., Reiss, C. S., Ross, R. M., Quetin, L. B., Schmidt, K., Steinberg, D. K., Subramaniam, R. C., Tarling, G. A., and Ward, P.: KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016, Earth Syst. Sci. Data, 9, 193-210, https://doi.org/10.5194/essd-9-193-2017, 2017.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is British Antarctic Survey. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: 89cc7735-d79d-4540-a1e9-f5f863bc741b. British Antarctic Survey publishes this resource, and is itself registered in GBIF as a data publisher endorsed by National Biodiversity Network.
Keywords
Occurrence; EUPHAUSIIDS (KRILL)
External data
The resource data is also available in other formats
| Original database | http://apex.nerc-bas.ac.uk/f?p=168:1 UTF-8 online database |
|---|---|
| Original Dataset | https://ramadda.data.bas.ac.uk/repository/entry/get/krillbase.zip?entryid=synth%3A8b00a915-94e3-4a04-a903-dd4956346439%3AL2tyaWxsYmFzZS56aXA%3D UTF-8 comma delimited csv |
Contacts
- Originator
- Plankton Ecologist
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Originator
- Point Of Contact
- Data Manager
Geographic Coverage
Antarctica; Southern Ocean
| Bounding Coordinates | South West [-79, -180], North East [-33, 180] |
|---|
Taxonomic Coverage
Euphausia superba and Salpidae
| Family | Salpidae (salps) |
|---|---|
| Species | Euphausia superba (Antarctic krill) |
Temporal Coverage
| Start Date / End Date | 1926-02-11 / 2016-02-08 |
|---|
Bibliographic Citations
- Atkinson, A., Hill, S. L., Pakhomov, E. A., Siegel, V., Anadon, R., Chiba, S., Daly, K. L., Downie, R., Fielding, S., Fretwell, P., Gerrish, L., Hosie, G. W., Jessopp, M. J., Kawaguchi, S., Krafft, B. A., Loeb, V., Nishikawa, J., Peat, H. J., Reiss, C. S., Ross, R. M., Quetin, L. B., Schmidt, K., Steinberg, D. K., Subramaniam, R. C., Tarling, G. A., and Ward, P.: KRILLBASE: a circumpolar database of Antarctic krill and salp numerical densities, 1926–2016, Earth Syst. Sci. Data, 9, 193-210, https://doi.org/10.5194/essd-9-193-2017, 2017.
Additional Metadata
marine, harvested by iOBIS
| Alternative Identifiers | https://ipt.biodiversity.aq/resource?r=krillbase_antarctickrillssalpsdensity_1926_2016 |
|---|