This dataset contains results from the Antarctic Division BIOMASS Experiment II (ADBEX II) cruise of the Nella Dan. This is the third cruise of six, and follows the ADBEX I cruise made during late 1982. ADBEX II was to have been an international experiment, Second International BIOMASS Experiment I (SIBEX I), in cooperation with Japan, South Africa and France, however due to the delay of a supply program Australia's participation was cancelled. ADBEX II is the result of a reduced sampling program carried out during the resupply of Davis and Mawson stations. Surveys of krill and other zooplankton were taken off Antarctica in the Australian sector (Mawson to Davis region) and Prydz Bay in January 1984. Species identity and abundance data were obtained. The major species investigated were Euphausia superba, Euphausia frigidia, Euphausia crystallorophias and Thysanoessa marcuria. Other pteropods and cephalopods were also studied. Results from hydroacoustic surveys of krill biomass were also obtained, as well as CTD and chlorophyll data. Summary results are listed in the documentation.

This dataset contains results from the Antarctic Division Biomass Experiment (ADBEX I) cruise of the Nella Dan. This cruise is the second in a series of six cruises, and follows the First International BIOMASS Experiment (FIBEX) in early 1981, documentation of which can be found in ANARE Research Notes 7, or by searching the metadata records for FIBEX. ADBEX I operated between November and December 1982, and studied the distribution and abundance of krill (Euphausia superba). Surveys of krill and other zooplankton were taken off Antarctica in the Australian sector (Mawson to Davis region) and Prydz Bay. The major species investigated were Euphausia superba, Euphausia frigidia, Euphausia crystallorophias and Thysanoessa marcuria. Other pteropods and cephalopods were also studied. Physical and chemical oceanography data were also obtained at some stations, as well as phytoplankton samples. Summary results are listed in the documentation.

Zooplankton were collected during the winter-spring transition during two cruises of the Aurora Australis: SIPEX in 2007 and SIPEX II in 2012. The umbrella net was 2 metres long, 28 cm2 mouth area and mesh size of 100 um. The net was lowered through holes drilled through the pack ice and lowered to 100 m. It was pulled slowly by hand to the surface, closed and brought back through the ice hole. The contents were preserved in 5% buffered formaldehyde and examined under a Leica M12 in the laboratory. Species were identified to the lowest taxon possible.

This metadata record will contain the results of bioassays conducted to characterise the response of Antarctic near-shore marine zooplankton to hydrocarbon contaminants in Special Antarctic Blend (SAB) diesel fuels commonly used in Antarctica. The results from one summer season (2010-11) are in this record. This was conducted under the AAS Project 3054: Ecological risks from oil products used in Antarctica: characterising hydrocarbon behaviour and assessing toxicity on sensitive early life stages of Antarctic marine invertebrates. Exposure solutions of fuel were experimentally mixed by slow stir of fuel and seawater in temperature control cabinets at -1 degree C to prepare a mixture of fuel hydrocarbons in filtered seawater (FSW) termed the Water Accommodated Fraction (WAF). WAF was produced by adding fuel to seawater in 5 L or 10 L Pyrex glass bottles using a ratio of 1:24 Fuel : FSW. This mixture was stirred at slow speed with minimal vortex for 18 h on a magnetic stirrer. The mixture was settled for 6 h before the water portion was drawn from beneath the fuel. Ecotoxicological bioassays were conducted at Davis Stations in the 2010/11 summer season using SAB WAF to prepare experimental treatments consisting of WAF dilution series. For each bioassay, treatments consisted of undiluted 100% WAF and dilutions of 10%, 17%, 25% and 50% of WAFs in FSW, to test the toxicity of water accommodated fractions of these three fuels on Antarctic both the zooplankton community and single copepod species. Bioassays were conducted in open vessels (glass jars or beakers) in temperature controlled cabinets. Mortality was observed at endpoints of 24 hrs, 48 hrs, 96 hrs, 7 days, 8 days, 9 days, 10 days, 11days, 12 days, 14 days, 15 days, and 16 days. New WAF solutions were prepared at the 7 day interval to replenish the experimental treatments. Deionised water was added to test solutions as required to maintain test solution volume and salinity. Water quality data was collected at each water change. Samples of test treatments for chemical analysis of hydrocarbon concentration were taken at each water change. Results of these analyses are not included as delayed progress with HC analyses impacted on quality of samples and these data were not used. This dataset consists of Excel spreadsheets. The file name code for zooplankton bioassays is; Project number_Season_Taxa_Test name Eg AAS_3054_10-11_zooplankton_m1 Project number : AAS_3054 Season : 2010/11 season Taxa: Zooplankton Community Test name: M1 =Multi-species test 1 Bioassay spreadsheets contain the results of bioassays for a species or the zooplankton community. Where replicate tests were conducted, each experiment is on a separate worksheet. The worksheet labelled "Test conditions" shows details of Test name, dates, animal collection details, laboratory holding conditions, details of water accommodated fractions (WAF), and bioassay conditions. The worksheet labelled "Counts" has a table for each of the replicates, arranged into a column for each treatment type. These tables show the number or dead individuals which were found and removed at each of the observation days. The worksheet labelled "Totals" has calculations of total number of individuals (of all species) which were found dead at each observation day in each replicate. It also gives the mean and standard deviation for each of the treatments. Further information on the zooplankton community structure in the 6 samples taken across the summer, based on the community in the toxicity tests and trials, is also included in the spreadsheet "AAS_3054_10-11_zooplankton_CommStructure". Sampling locations were near-shore from Davis Station, Vestfold Hills and from O'Gorman Rocks, southwest of Anchorage Island and northwest of Plough Island.

These notes present a summary of observations on seabirds, seals and plankton conducted from the vessel Kyo Maru No 27 during the seventh International Decade of Cetacean Research Southern Hemisphere Minke Whale Assessment cruise. The cruise was conducted under the auspices of the International Whaling Commission (IWC) to whom Paul Ensor was contracted as a consultant. The information presented here are personal observations only; recorded outside normal research hours or in such a manner that his participation in the cetacean research was not compromised.

Zooplankton were collected during the winter-spring transition during two cruises of the Aurora Australis: SIPEX in 2007 and SIPEX II in 2012. As part of the collections sea ice cores were collected to describe the ice habitat during the period of zooplankton collections. Ice cores were taken with a 20 cm diameter SIPRE corer and sectioned in the field with an ice core. Temperature was measured in the section using a spike thermometer and slivers of each section were melted without filtered water to record salinity. The remainders of each section were melted at 4oC in filtered seawater and the melted water was used to measure chlorophyll a concentration, and meiofauna species and abundance.

Samples were collected at trawl stations (approximately every second CTD station), as well as opportunistically when something interesting was spotted on the Echosounder. The samples were collected with an RMT-1 plankton net and preserved in Steedman's solution. Upon returning to Australia, the samples were passed onto Kerrie Swadling, who split them with a Folsom plankton splitter and counted between 400 and 1300 animals. Every organism was identified to the lowest possible taxon - in the case of copepods, usually to species and stage level. Other taxa are to species wherever possible. All the animals were counted and the results are expressed as abundance per 1000 cubic m. The data in the spreadsheet represent a species x site matrix. The excel spreadsheet entitled 'List of major samples and activities BROKE West.xls' is a summary of the sort of samples that were collected at each station, and the purpose for which they were collected. More detailed notes about the collection of the samples are presented in the Quality field. Further information about the Trawl stations can be found in the parent BROKE-West metadata record. This work was completed as part of ASAC projects 2655 and 2679 (ASAC_2655, ASAC_2679). The fields in these excel spreadsheets are: Station Number Species Date Latitude Longitude Trawl Type Formalin - whether the samples were fixed in formalin IGR - whether the instantaneous growth rate experiment was performed Genetics - preserved in ethanol, samples retained for genetic experiments Frozen - samples frozen at -85 degrees C for chemical analysis POP - samples analysed for Persistent Organic Pollutants Density Contrast - whether the density contrast of the krill were measured Isotopes - samples retained for isotope analysis Frozen DG - digestive gland samples were frozen Ethanol (Squid) - ethanol fixed squid were retained Frozen (Fish) - frozen fish samples were retained Formalin (Fish) - formalin fixed fish samples were retained Ethanol (Fish) - ethanol fixed fish samples were retained Demography - demographic parameters were collected Other - various purposes, occasionally noted in the comments field Comments The spreadsheet 'List of major samples and activities BROKE West.xls' is marked with solid black circles, or empty white circles - the empty white circles represent Euphausia crystallorophias samples. The solid black circles represent Euphausia superba in columns F-K, M and R. In the other columns they will either represent the animal as marked (eg squid), or may be a collection of anything.

Taken from the biology report for Davis Station, 1982, prepared by Mark Tucker. A hardcopy of the report and field books are available in the Australian Antarctic Division library, and pdf copies of the report and field books are available for download at the provided URLs. Introduction The year biology programme for the 1982 season was divided amongst three persons into Phytoplankton, Chlorophyll, Invertebrates and Fish. As the zoologist, I will therefore concentrate on the animal, aspect. The aims of this programme as outlined in the ARPAC approved "A survey of the inshore marine area of Davis" are: 1) A systematic investigation to determine the flora and fauna of the marine inshore environment. 2) To explain their distribution and abundance in response to environmental variables. The first aim can be divided into two categories: 1) Wide range collection of the benthic, planktonic, pelagic and epontic faunas from the inshore waters of the Vestfold Hills. 2) Quantitative examination of the seasonal and distributional changes of the more common species. Most of the wide range collecting of the benthos and to a certain extent the plankton was carried out over the 81/81 summer. Collections were made from as far north as the Wyatt Earp islands and in the south near the Sorsdal Glacier. As wide a coverage as possible of the Vestfolds was made plus a visit to the Rauer group on one occasion. The planktonic fauna was collected throughout the year on a monthly basis from three sites from January 82 to December 82 while the pelagic and epontic faunas were collected monthly from the same sites after fast ice formation - April to December. Additions were made to the benthic collections throughout the year if any previously uncollected or interesting specimens were observed. These collections have culminated in over 150 species. I would expect the total number of different species to be around 200 once all are identified. Representatives of all the species collected will be returned to Biology, Kingston, for reference for future workers in the marine invertebrate field. The second aim, the quantitative examination, was carried out over a 12 month period from January 82 to December 82 at three sites - A, B and C (figure 1). These sites were selected on the criteria of depth, proximity to Davis and most importantly sediment types. Site A is 9m deep with a sandy bottom and a few odd rocks. It has a relatively low (5% or less) macrophytic cover. Site B is 20m deep with a mud bottom and zero macrophytes while site C is 15m deep with a rocky bottom and scattered pockets of sand and shell fragments etc. and 5-10% macrophyte cover. Sites A and B are relatively flat while C is situated on quite a steep slope. Sediment samples have been retained from each site to enable particle size analysis for more accurate descriptions of the sediment types. Several zooplankton, sediment inhabiting and macroscopic benthic species were monitored on a monthly basis for the year. Fish were sampled at sites A and C while the epontic community was sampled after ice formation at all three sites. The environmental variables measured were ice and snow thickness, tide, hours of daylight, salinity, nutrients, water temperature plus chlorophyll data and phytoplankton numbers. These variables are to be used in statistical analysis as a means of explaining the abundance and distribution of the species studied.