This dataset is a document describing the Pelagic Tunicates of the Southern Ocean. It lists all the known Southern Ocean species and with illustrated diagrams provides a guide to their taxonomic identification. The document is available for download as a pdf from the provided URL.

This dataset is a document describing the Pelagic Polychaetes of the Southern Ocean. It lists all the known species and with illustrated diagrams provides a guide to their taxonomic identification. The document is available for download as a pdf from the provided URL.

This dataset is a document describing the Metazoan Zooplankton of the Southern Ocean. It lists all the known species and with illustrated diagrams provides a guide to their taxonomic identification. The document is available for download as a pdf from the provided URL.

This dataset is a document describing the 66 species of Hydromedusae found in the Southern Ocean. It lists all the known species, and with illustrated diagrams provides a guide to their taxonomic identification. It also includes general information about Hydromedusae and collection and preservation. The document is available for download as a pdf from the provided URL.

This dataset provides a guide to the Euphausiacea of the Southern Ocean, in particular Euphausia superba Dana (Antarctic krill). It lists all the known species and with illustrated diagrams provides a guide to their taxonomic identification. The document is available for download as a pdf from the URL given below.

This dataset is a document describing the pelagic Nemerteans of the Southern Ocean. It lists the 11 known pelagic Southern Ocean species and with illustrated diagrams provides a guide to their taxonomic identification and distribution. The document is available for download as a pdf from the provided URL.

Zooplankton were collected with a Rectangular Midwater Trawl (RMT 8+1 net) from 37 sampling sites on and near the Southern Kerguelen Plateau. The contents of each net were preserved in 5% buffered formaldehyde. This dataset covers the counts of the contents of the RMT8 net and includes the abundances for the euphausiid Thysanoessa macrura and the salp Salpa thompsoni. The contents were identified and counted under a Leica M165C stereo-microscope. A flow meter attached to the mouth of the RMT 8 was used to record the volume of seawater passing through the net. The count for Thysanoessa macrura includes the total of all developmental stages. For the salps abundances are shown for the 2 developmental phases - solitary individuals and aggregates.

This dataset is a document describing the Ctenophores of the Southern Ocean. It lists all the known species and with illustrated diagrams provides a guide to their taxonomic identification. The document is available for download as a pdf from the provided URL.

This dataset is a document describing the Chaetognaths of the Southern Ocean. The synonymy, diagnostic characters, geographical and bathymetric distribution of each species is given together with an illustration of body, head and a seminal vesicle, and a distribution map. The document is available for download as a pdf from the provided URL.

This dataset is intended for general use in spatial planning and management to identify areas where benthic marine assemblages are likely to differ from each other in the Southern Ocean. We achieve this by using a hierarchical spatial classification of ecoregions, bathomes and environmental types. Ecoregions are defined according to available data on biogeographic patterns and environmental drivers on dispersal. Bathomes are identified according to depth strata defined by species distributions. Environmental types are uniquely classified according to the geomorphic features found within the bathomes in each ecoregion. This circum-Antarctic map of environmental types can be used to support spatial management aimed at conserving benthic biodiversity across the entire Southern Ocean. The study area spans the region managed by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR). The northern boundary of this region is a line approximating the location of the Polar Front. The southern boundary was defined as the northern edge of the permanent ice shelf of the Antarctic continent. The shapefile can be used to identify three levels of the hierarchical classification (see Fig. 1 of Douglass et al., 2014): 1) Level 1: Ecoregions 2) Level 2b: Geomorphic features nested in each ecoregion 3) Level 3: Environmental Types The dataset cannot be used to analyse a level 2a nesting since for some geomorphic features (e.g. seamounts and canyons) the nested bathomes were combined when generating environmental types. If a level 2a nesting is required please contact douglass.lucinda@gmail.com The shapefile contains ten fields: EcoID- Abbreviated Level 1 benthic ecoregion names Ecoregion- Level 1 benthic ecoregion names Geomorph2- Geomorphic features BathID- Bathome identification number which can be used to sort the depth classes Bathome2 - Bathome EcoGeo- Level 2b nesting of geomorphic features in each ecoregion EnvTyp- Level 3 environmental types GeoClsID- Geomorphic class identification number GeoCls- Geomorphic classes Sqkm- Area in square kilometers