Global Change Master Directorygsfc-gcmduso@mail.nasa.gov502013-05-23T05:52:38ZGCMD Search: Parameters|HUMAN DIMENSIONS|ENVIRONMENTAL IMPACTS|HEAVY METALShttp://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 73 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_field_lab_booksCopies of field and lab books associated with ASAC project 2201 - Natural variability and human induced change in Antarctic nearshore marine benthic communities78.0,-68.0,111.0,-66.01997-10-01T00:00:00Z2012-03-31T00:00:00Z2013-02-13T05:00:00ZThese are the scanned electronic copies of field and lab books used at Casey Station and Davis Station between 1997 and 2012 as part of ASAC (AAS) project 2201 - Natural variability and human induced ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2385_field_lab_booksCopies of field and lab books associated with ASAC project 2385 - Development and application of DGT devices for passive sampling of contaminated waters in the Antarctic environment110.0,-67.0,111.0,-66.02003-10-01T00:00:00Z2006-03-31T00:00:00Z2013-02-13T05:00:00ZThese are the scanned electronic copies of field and lab books used at Casey Station between 1997 and 2012 as part of ASAC (AAS) project 2385 - Development and application of DGT devices for passive ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2570_field_lab_booksCopies of field and lab books associated with ASAC project 2570 - Constraints on hydrocarbon adsorption and nutrient release from zeolites at low temperatures for hydrocarbon remediation in Antarctica110.0,-67.0,111.0,-66.02004-10-01T00:00:00Z2012-03-31T00:00:00Z2013-02-13T05:00:00ZThese are the scanned electronic copies of field and lab books used at Casey Station between 2004 and 2012 as part of ASAC (AAS) project 2570 - Constraints on hydrocarbon adsorption and nutrient release ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2576_field_lab_booksCopies of field and lab books associated with ASAC project 2576 - The hydraulic behaviour of Permeable Reactive Barrier materials under freeze-thaw conditions110.0,-67.0,111.0,-66.02004-10-01T00:00:00Z2007-03-31T00:00:00Z2013-02-13T05:00:00ZThese are the scanned electronic copies of field and lab books used at Casey Station between 2004 and 2007 as part of ASAC (AAS) project 2576 - The hydraulic behaviour of Permeable Reactive Barrier ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]SOE_NORWAYState of the Environment - Norway 20040.0,50.0,30.0,80.01966-01-01T00:00:00ZT00:00:00Z2013-01-24T05:00:00ZState of the Environment Norway ("http://www.environment.no/" provides
the latest information about the state and development of the
environment. The service presents environmental topics ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]HEED_UNHMajor Marine Ecological Disturbances, Morbidity, Mortality and Disease of Marine Wildlife Species Human Health and Economic Impacts-102.0,-4.0,-28.0,56.01995-11-10T00:00:00Z1999-06-06T00:00:00Z2012-11-08T05:00:00ZThe HEED (Health, Ecological and Economic Dimensions of) Global Change
Program, a 3-year effort funded by the National Oceanic and
Atmospheric Administration's Office of Global Programs ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]AAS1300_PW_FIELDTRIALIXField trial of WTP ion-exchange columns using Amberlite IRC748 during the Thala Valley clean-up110.0,-66.0,110.0,-66.02003-10-01T00:00:00Z2004-03-31T00:00:00Z2012-11-05T05:00:00ZIon-exchange columns were used in the WTP (water treatment plant) for water treatment during the clean-up of the Thala Valley tip - data collected during the operation were used as a field trial to ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Long-term_Sediment_MetalsHeavy metal concentrations in marine sediments around Casey station, East Antarctica - long-term monitoring110.516,-66.35,110.6,-66.231997-10-22T00:00:00Z2006-12-07T00:00:00Z2012-11-05T05:00:00ZSediment cores (5cm diameter x 10cm deep), collected as part of the long-term monitoring of the Thala Valley waste disposal site clean-up (Casey station), were sectioned and a portion of each core ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]org.polarresearch-576Samples from 2007 for the COPOL project11.8569355,79.0,11.8569355,79.02007-01-01T00:00:00Z2010-12-31T00:00:00Z2012-10-26T04:00:00ZCOPOL is a project under the auspices of the International Polar Year (IPY). The main objective of the project is to understand the dynamic range of man-made contaminants in marine ecosystems of Polar ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]ECA069Trace metals in the Larsemann Hills, East Antarctica: natural processes and human impact1995-11-01T00:00:00Z1996-02-28T00:00:00Z1996-11-01T00:00:00Z1997-02-28T00:00:00Z2012-08-01T04:00:00ZTo evaluate the extent of human impact on a pristine Antarctic environment, natural baseline levels of trace metals have been established in the basement rocks of the Larsemann Hills, East Antarctica. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]AAS1300_PW_COLUMNSIXColumn breakthrough ion-exchange experiments for Amberlite IRC748 (WTP for Thala Valley clean-up)110.0,-66.0,110.0,-66.02004-04-01T00:00:00Z2004-12-20T00:00:00Z2012-01-09T05:00:00ZA series of ion-exchange column breakthrough experiments were undertaken with laboratory solutions spiked with heavy metals to investigate the removal of these metals by Amberlite IRC748 at variable ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Algal_Toxicity_ProjectHeavy metal toxicity to Antarctic macroalgae measured using a robotic PAM fluorometer110.0,-66.5,110.5,-66.02005-12-30T00:00:00Z2006-03-21T00:00:00Z2011-11-09T05:00:00ZExperiments were carried out at Casey Station over the summer of 2005-2006 to investigate declines in chlorophyll fluorescence following from exposure to seawater spiked with heavy metals. Chlorophyll ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_RuncieMacroalgal responses to heavy metals and varying light levels at Casey Station110.0,-66.5,110.5,-66.02001-09-28T00:00:00Z2002-12-30T00:00:00Z2011-11-09T05:00:00Z1. In situ chlorophyll fluorescence measurements using pulse amplitude technique (PAM) of macroalga Desmarestia menziesii, assessing adaptation to high light exposure after sea ice breakout, and impact ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]toxicity_hm_swToxicity of Heavy Metals in Seawater to Juvenile Heart Urchins (Abatus spp)110.0,-66.5,110.5,-66.02002-12-01T00:00:00Z2003-02-28T00:00:00Z2011-11-09T05:00:00ZThese data sets describe the toxicity of lead, coppyer, zinc and cadmium spiked seawater to the juveniles of Abatus ingens and Abatus nimrodi. Metals were tested separately over exposure periods ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]toxicity_tipfines_echinocardiumToxicity of sediment spiked with Thala Valley Tip Fines to the Temperate Heart Urchin Echinocardium cordatum147.0,-42.0,147.0,-42.0110.0,-66.0,110.0,-66.02001-06-29T00:00:00Z2001-08-08T00:00:00Z2011-11-09T05:00:00ZThis data set describes the toxicity of marine sediment spiked with contaminated soil from Thala Valley tip site at Casey. The temperate heart urchin species Echinocardium cordatum was exposed for ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]uptake_metals_echinocardiumUptake of heavy metals from copper and lead spiked sediments by Echinocardium cordatum147.0,-42.0,147.0,-42.02003-07-01T00:00:00Z2003-09-01T00:00:00Z2011-11-09T05:00:00ZThis data set describes the concentrations of copper, lead and iron in the calcareous tests of heart urchins that were exposed to spiked sediments for 60 days.
Porewater is the water extracted from ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_benthic_survey2Soft sediment assemblages at Casey Station: Spatial variation and human impacts. (core samples: Oct-Dec 1997)110.0,-66.34952,110.53687,-66.258331997-10-22T00:00:00Z1997-12-31T00:00:00Z2011-05-11T04:00:00ZA survey of macrobenthic assemblages in soft-sediments was done at Casey Station, East Antarctica. Samples were taken by divers using hand-held corers (core size - 10 cm diameter by 10 cm deep). The ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_benthic_survey1Survey of soft sediment assemblages around Casey Station (grab samples), Feb - Mar, 1997110.46608,-66.2941,110.53687,-66.216671997-02-20T00:00:00Z1997-03-10T00:00:00Z2011-05-11T04:00:00ZMarine soft-sediment assemblages were sampled from shallow (5 - 35m) nearshore regions around Casey Station, Windmill Islands, East Antarctica in late summer (Feb-March) 1997, using a van-Veen grab ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_1092An environmental record of lead isotopes over four centuries at Law Dome, Antarctica110.0,-66.0,110.0,-66.01998-09-30T00:00:00Z2001-03-31T00:00:00Z2011-05-10T04:00:00ZAntarctic ice provides an archive of Earths atmospheric composition over time. It therefore records evidence of human impact on the atmosphere. Lead is a toxic element, whose isotopic fingerprint ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]TVcleanup_2002-2004Chemical assessment during cleanup of the Thala Valley tip site, Casey Station, 2002/2003-2003/2004110.532,-66.284,110.534,-66.2822003-01-13T00:00:00Z2004-02-05T00:00:00Z2010-07-28T04:00:00ZChemical assessment data for selected heavy metals determined for the abandoned waste disposal site at Thala Valley, Casey Station, over two seasons (pre- and during cleanup).
2002-03 ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]mcconnell_0538427High temporal resolution, continuous ice core measurements for WAIS Divide (WDC05A, WDC05Q)112.125,79.463,112.086,79.4681520-06-01T00:00:00Z2005-01-01T00:00:00Z2010-07-28T04:00:00ZNearly continuous, monthly averaged measurements of hydrogen peroxide, nitrate, liquid conductivity, and 12 elements (Na, Mg, Al, S, Ca, Mn, Fe, Rb, Sr, Ce, Pb, and U) for two intermediate depth ice ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]AAS1300_PW_BATCHIXBatch ion-exchange experiments for Amberlite IRC748 (WTP for Thala Valley clean-up)110.0,-66.0,110.0,-66.02003-04-01T00:00:00Z2003-08-30T00:00:00Z2009-08-14T04:00:00ZA series of ion-exchange batch equilibrium experiments were undertaken with laboratory solutions spiked with heavy metals to investigate the removal of these metals by Amberlite IRC748 at variable ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NYC_NYharborwaterqualityNew York Harbor Water Quality Surveys-80.16,40.11,-71.46,45.411909-01-01T00:00:00ZT00:00:00Z2009-06-02T04:00:00ZThis dataset provides annual surveys of water quality. The harbor survey
monitors the quality of harbor waters and identifies the impacts of the city's
pollution control programs ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]gomc_99Casco Bay Estuary Partnership Monitoring Programs-70.2967,43.556,-69.8504,43.92961998-04-01T00:00:00ZT00:00:00Z2009-04-28T04:00:00Z Casco Bay Estuary Partnership is working to protect and restore the
Casco Bay ecosystem and watershed while sustaining compatible human uses. The
stakeholder-developed "Casco Bay Plan" ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CICEET_GREATBAYCICEET Great Bay New Hampshire Data-72.68,42.57,-70.58,45.432009-04-20T04:00:00ZCICEET Great Bay (New Hampshire) Data
The Cooperative Institute for Coastal and Estuarine
Environmental Technology (CICEET) supports the scientific
development of innovative ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K094_1995_1997_NZ_1Predicting contaminant impacts at Lake Vanda, Antarctica161.6666,-77.5166,161.6666,-77.51661995-11-27T00:00:00Z1997-01-11T00:00:00Z2009-03-27T04:00:00ZSamples of water, phytoplankton, sediment, soil and bacterial mat were sampled from Lake Vanda and the old Vanda station site, in order to determine the fate of trace metal contaminants and their ...http://gcmd.gsfc.nasa.gov/getdif.htm?[CANADA-CGDI]ACZDD_MIS_76Marine Monitoring Data (Physical, Chemical, Biological) from the Canadian East Coast-180.0,-90.0,180.0,90.01977-01-01T00:00:00ZT00:00:00Z2009-01-21T05:00:00ZThis marine monitoring data includes physical (temperature, currents, sediment
grain size analysis), chemical (oil & grease, cadmium, mercury, lead, zinc,
PCB, DDT, salinity), and biological ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]151-92_01Vertical distribution of Cs-137 and Sr-90 in Antarctic soils, and their concentration in soils, moss and lichen-58.26,-62.08,-58.26,-62.08-58.54,-62.11,-58.54,-62.11-68.23,-67.11,-68.23,-67.11-59.4,-62.32,-59.4,-62.32-59.41,-62.3,-59.41,-62.3-61.21,-62.47,-61.21,-62.471993-01-14T00:00:00Z1993-01-23T00:00:00Z1994-02-03T00:00:00Z1994-02-04T00:00:00Z1995-01-06T00:00:00Z1995-01-11T00:00:00Z2009-01-21T05:00:00ZIn 21 places on the South Shetland Islands, that experience similar annual
precipitation, the superficial concentration of Cs-137 was determined. For the
determination of the distribution, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]K063_1989_1990_NZ_2Analysis of organochlorine pesticides, PCB's and heavy metals levels in Adelie penguin (Pygoscelis adeliae) and South Polar skua (Catharacta maccormicki) carcasses and abandoned eggs166.6833,-77.1667,166.6833,-77.16671989-11-21T00:00:00Z1990-01-29T00:00:00Z1990-11-15T00:00:00Z1991-01-28T00:00:00Z2008-10-14T04:00:00ZSkuas as a group have come to be recognized as 'barometers' of environmental health, as their wide range and feeding habits make them ideal for monitoring oceanic pollution. Skua and adelie penguin ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]CERB_PHY_CHEMPhysical and Chemical Oceanographic Data (including Pollution Data) from the Caribbean Sea, and the South Pacific Ocean-90.0,10.0,-60.0,20.0140.0,-60.0,-70.0,0.02008-06-12T04:00:00ZThe main objectives of the Biotic Resources Study Centre are the evaluation of
the state of the country's renewable natural resources; identification of
critical areas and the causes of ...http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]USGS_ABSC_BERING_METALSSea-Floor Sediment Heavy Metals Datasets-176.0,65.5,-153.0,74.52008-05-15T04:00:00ZThis is a database of references to surface-sediment heavy metal concentration
data in the Bering and Chukchi Seas. It supports Pacific walrus research at the
Alaska Science Center - Biological Science ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_HCL_0.50.5 hour 1 M HCl extraction data for the Windmill Islands marine sediments110.0,-66.0,110.0,-66.01997-10-01T00:00:00Z1999-03-31T00:00:00Z2008-04-10T04:00:00ZThese results are for the 0.5 hour extraction of HCl.
See also the metadata records for the 4 hour extraction of HCl, and the time trial data for 1 M HCl extractions.
A regional survey of potential ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_HCL_44 hour 1 M HCl extraction data for the Windmill Islands marine sediments110.0,-66.0,110.0,-66.01997-10-01T00:00:00Z1999-03-31T00:00:00Z2008-04-10T04:00:00ZThese results are for the 4 hour extraction of HCl.
See also the metadata records for the 0.5 hour extraction of HCl, and the time trial data for 1 M HCl extractions.
A regional survey of potential ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_SRE1A manipulative field experiment examining the effect of contaminated sediment on the recruitment and recolonisation of soft-sediment infauna.110.52252,-66.2941,110.54701,-66.279131997-03-05T00:00:00Z1997-11-18T00:00:00Z2008-04-10T04:00:00ZThe effect of location, depth and sediment contamination on recruitment of soft-sediment assemblages were examined in a pilot experiment at Casey Station, East Antarctica. Two locations were used, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_SRE2A manipulative field experiment examining the effect of contaminated sediment on the recruitment of soft-sediment infauna (Mar 1998 - Feb 1999).110.52252,-66.2941,110.54701,-66.279131998-02-11T00:00:00Z1999-02-11T00:00:00Z2008-04-10T04:00:00ZThe effect of location and sediment contamination on recruitment of soft-sediment assemblages were examined in field experiment at Casey Station, East Antarctica. Four locations were used, a polluted ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_SRE3A manipulative field experiment examining the effect of heavy metal and hydrocarbon contaminated sediment on the recruitment of soft-sediment infauna.110.52252,-66.2941,110.54701,-66.279131998-12-01T00:00:00Z1999-02-17T00:00:00Z2008-04-10T04:00:00ZThe effects of hyrdocarbon and heavy metal contamination of marine sediments on recruitment of soft-sediment assemblages were examined in a field experiment at Casey Station, East Antarctica. Three ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_tiles_1_mobileA manipulative field experiment examining the recruitment of mobile epifauna to hard-substratum at potentially impacted and control locations.110.52252,-66.2941,110.54701,-66.279131997-11-15T00:00:00Z1999-02-23T00:00:00Z2008-04-10T04:00:00ZThe recruitment of mobile epifauna on hard-substratum was examined in a field experiment using tiles. A total of 160 tiles were deployed at five locations, with 32 tiles at each location, arranged ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_tiles_1_sessileA manipulative field experiment examining the recruitment of sessile epifauna to hard-substratum at potentially impacted and control locations.110.52252,-66.2941,110.54701,-66.279131997-11-15T00:00:00Z1999-02-23T00:00:00Z2008-04-10T04:00:00ZThe recruitment of epifauna (sessile and mobile) on hard-substratum was examined in a field experiment using tiles. A total of 160 tiles were deployed at five locations, with 32 tiles at each location, ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]DGT-Heavymetals-Casey03-04Concentration of heavy metals in marine waters around Casey station - summer 2003/04110.0,-66.0,110.0,-66.02003-12-01T00:00:00Z2004-02-19T00:00:00Z2008-04-10T04:00:00ZThe concentration of heavy metals in seawater at four sites around Casey was determined via Diffusive Gradients in Thin films (DGT) loggers attached to experimental mesocosms suspended below the sea ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]DB_Contaminated_SitesContaminated Sites Database73.5,-53.2,73.6,-53.1158.0,-54.0,159.0,-54.062.0,-68.0,110.0,-66.01967-07-09T00:00:00ZT00:00:00Z2008-04-10T04:00:00ZThis database has been developed to provide data for state of the environment reporting and as an aid for the management of contaminated sites in Antarctica. It contains known suspected and known ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2385Development and application of DGT devices for passive sampling of contaminated waters in the Antarctic environment68.098,-70.7146,68.098,-70.71462002-11-27T00:00:00Z2003-01-20T00:00:00Z2003-11-14T00:00:00Z2004-02-04T00:00:00Z2008-04-10T04:00:00ZMetadata record for data from ASAC Project 2385
See the link below for public details on this project.
---- Public Summary from Project ----
Facilities for chemical analysis of environmental samples ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]SOE_contaminated_sites_impactEstimated environmental impact and ecological risk posed by contaminated sites in the Australian Antarctic Territory and Australian sub-Antarctic islands60.0,-70.0,160.0,-53.02002-08-30T00:00:00ZT00:00:00Z2008-04-10T04:00:00ZINDICATOR DEFINITION
The environmental impacts and risk of contaminated sites in the Australian Antarctic Territory and Australian sub-Antarctic Islands.
TYPE OF INDICATOR
There are three types of ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_590Heavy metal and organochlorine pollutants in Antarctic vertebrates90.0,-60.0,150.0,-40.01989-01-01T00:00:00Z1994-12-31T00:00:00Z2008-04-10T04:00:00ZAs top predators seabirds have the potential to accumualte marine pollutants. This study quantified heavy metal loads in 3 species of albatross.
From the abstract of the referenced paper:
Cadmium ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]Heavymetals-Gamms-Casey03-04Heavy metal content of Paramoera walkeri (Eusiridae, Amphipoda) tissue - Short-term biomonitoring of Thala Valley Tip Clean-up, Casey, Summer 2003/04110.0,-66.5,110.5,-66.02003-12-01T00:00:00Z2004-02-19T00:00:00Z2008-04-10T04:00:00ZThe heavy metal content of whole Paramoera walkeri (Eusiridae, Amphipoda) were measured from specimens collected and deployed in experimental mesocosms around Casey station during the summer of 2003/04. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_966Lead isotopes in snow and ice as an indicator of past changes to the Antarctic environment110.0,-66.0,110.0,-66.01996-09-30T00:00:00Z1998-03-31T00:00:00Z2008-04-10T04:00:00ZFrom the abstracts of the referenced papers:
Techniques for Pb measurements have reached the stage where Antarctic ice with sub-picogram per gram concentrations can be reliably analysed for isotopic ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]SOE_contaminated_sites_manageManagement of contaminated sites in the Australian Antarctic Territory and Australian sub-Antarctic islands60.0,-70.0,160.0,-53.02002-08-30T00:00:00ZT00:00:00Z2008-04-10T04:00:00ZINDICATOR DEFINITION
The management response to contaminated sites in the Australian Antarctic Territory and Australian sub-Antarctic islands.
TYPE OF INDICATOR
There are three types of indicators ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_photoquadrats2Photoquadrat survey of hard substratum assemblages around Casey Station: boulders and boulder fields.110.52252,-66.2941,110.54701,-66.279131997-10-18T00:00:00Z1997-12-11T00:00:00Z2008-04-10T04:00:00ZA survey of the epibenthic fauna of hard-substrata was made around Casey Station, using a camera mounted on a frame to take photoquadrats. A nested dsampling desing was used with several spatial scales. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_photoquadrats1Photoquadrat survey of hard substratum assemblages around Casey Station: flat and sloping rocky areas.110.52252,-66.2941,110.54701,-66.279131997-10-18T00:00:00Z1997-12-11T00:00:00Z2008-04-10T04:00:00ZA survey of the epibenthic fauna of hard-substrata was made around Casey Station, using a camera mounted on a frame to take photoquadrats. A nested dsampling desing was used with several spatial scales. ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_benthic_survey4Soft sediment assemblages at Casey Station: (core samples: Nov 1998 - Jan 1999)110.0,-66.34952,110.53687,-66.258331998-11-30T00:00:00Z1999-01-28T00:00:00Z2008-04-10T04:00:00ZA survey of macrobenthic assemblages in soft-sediments was done at Casey Station, East Antarctica. Samples were taken by divers using hand-held corers (core size - 10 cm diameter by 10 cm deep). This ...http://gcmd.gsfc.nasa.gov/getdif.htm?[AADC]ASAC_2201_Casey_benthic_BBGSoft sediment assemblages at Casey Station: Brown Bay Grid - samples taken along a pollution gradient.110.0,-66.34952,110.53687,-66.258331998-12-15T00:00:00Z1999-01-18T00:00:00Z2008-04-10T04:00:00ZA survey of macrobenthic assemblages in soft-sediments was done at Casey Station, East Antarctica. Samples were taken along four transects in Brown Bay, along a pollution gradient that has its source ...