AndreaBozzo/ceres-open-data-index huggingface dataset:
Effects of periodic trampling on rocky intertidal algal beds: Hormosira banksii cover

This study examines the effects of  trampling on rocky intertidal platforms dominated by the brown algae Hormosira banksii.   This dataset gives the percent cover of Hormosira  banskii in response to four levels of experimental trampling applied over six summers, between 1991 and 1996, within Point Nepean National Park, Victoria.  Two sites were located at Cheviot Beach (Harry's Pool, Cheviot Mid) and one at Grenade Range (Grenade Range).  The percent cover of Hormosira banskii in each experimental strip of shoreline was assessed  bi-annually for six years. Hormosira banksii was affected by trampling but the response varied with location.  At Cheviot beach periodic disturbance produced a pulse response in the cover of Hormosira, but  responses  to a given level of trampling varied among years.  At  Grenade Range there was little recovery between  trampling periods after two years and by this time Hormosira  was almost eliminated at the highest level of trampling.

Tags: 54 100001, Adaptation, Biosphere, Civil Disturbance, Ecological Dynamics, Environmental Impacts, Hormosira banksii, Human Dimensions, Macroalgae, Marine Biology, Marine Plants, Oceans, Point Nepean National Park, Vegetation, periodic
Organization: School of BioSciences, The University of Melbourne
Effects of periodic trampling on the abundance of mobile animals within Hormosira banksii dominated rocky intertidal communities

This study assesses the effects of  trampling on Hormosira banksii dominated rocky intertidal algal beds within Point Nepean National Park over six summers between 1991 and 1996. This dataset gives the number of mobile animals (N per m2) within beds of Hormosira banksii after exposure to four levels of  experimental trampling for 3 and 5 years.  Sites were located at Cheviot Beach (Harry's pool, Cheviot Mid) or at Grenade Range, ~ 1 km apart.  The number of mobile animals were sampled in the Autumn of 1993 and 1995, after 3 and 5 years of summer trampling,  respectively. Trampling increased the abundance of a number of herbivorous molluscs, particularly limpet abundance. The effect of trampling on the abundance of mollusks may be indirect as changes in the abundance of mollusks occurred only after changes in the cover of Hormosira.

Tags: 24 002002, 24 010020, 24 045004, 24 046007, 24 095010, 24 488002, 54 100001, Adaptation, Aquatic Habitat, Austrocochlea constricta, Bembicium nanum, Benthic Habitat, Biosphere, Civil Disturbance, Ecological Dynamics, Environmental Impacts, Hormosira banksii, Human Dimensions, Macroalgae, Marine Biology, Marine Invertebrates, Marine Plants, Mollusks, Oceans, Patelloida alticostata, Patelloida latistrigata, Point Nepean National Park, Siphonaria zelandica, Turbo undulata, Vegetation, Zoology, periodic
Organization: School of BioSciences, The University of Melbourne
Effects of periodic trampling on the percentage cover of understory algae within Hormosira banksii dominated rocky intertidal communities

This study assesses the effects of  trampling on Hormosira banksii dominated rocky intertidal algal beds within  Point Nepean National Park, Victoria, over six summers between 1991 and 1996. This dataset gives the percent cover of understory algae within beds of Hormosira banksii after exposure to four levels of trampling for 3 and 5 years.  Sites were located at Cheviot Beach (Harry's pool, Cheviot mid) or Grenade Range, ~ 1 km apart.  Percent cover of understory algae was sampled in the Autumn of 1993 and 1995, after 3 and 5 years of trampling, respectively.  Trampling reduced the abundance of articulated coralline algae at the Grenade Range site but not at either of the two Cheviot Beach sites.

Tags: 54006000, 54100001, 55121000, 56180044, Adaptation, Biosphere, Civil Disturbance, Cladophoraceae, Corallinaceae, Ecological Dynamics, Environmental Impacts, Hormosira banksii, Human Dimensions, Macroalgae, Marine Biology, Marine Plants, Oceans, Point Nepean National Park, Ralfsiaceae, Vegetation, articulate coralline algae, encrusting coralline algae, periodic
Organization: School of BioSciences, The University of Melbourne
Good Practice in Job Services Australia

This report examines the practices used by providers of Job Services Australia (JSA) employment services to achieve high levels of performance in employment outcomes and high quality services. It does this by examining the relationships between quantifiable provider site characteristics as measured by JSA Star Ratings and Quality Framework measures, and the intrinsic factors that job seekers, employment consultants and employers speak about when describing a “quality service”. This report is provided by Department of Jobs and Small Business (previously Department of Employment).

Tags: evaluation, job seeker, job services australia, service provider, star ratings
Organization: Department of Employment and Workplace Relations
Effects of predation by fishes on the epifaunal community at Portsea, Victoria.

Exclusions were attached to artificial substrata to investigate the relative effects of predation on the development of epifaunal communities at Portsea. Exclusions were black plastic mesh cages enclosing panels that were attached to rigs under the Portsea Pier. Bare control panels and cage controls where included in the experimental design. Cage controls had the bottom and half of the roof on the cage removed. There were 2 replicate panels of each treatment that were immersed for 2, 4 or 7 months and there were 6 runs of the experiment from October 1975 to November 1977. At the conclusion of each run of the experiment the panels were fixed in 4% formalin-seawater solution. In the laboratory, the number of individuals and percent cover of colonial species on each panel were recorded. 

Surveys identified that grazing fish were the most abundant predator of the epifaunal community at Portsea during the experiment. Predation significantly affected the pattern of establishment of the epifaunal community. There were fewer ascidian recruits and more diverse communities on bare control panels because fish predation prevented monopolisation of space by dominant ascidian competitors. On caged panels were there was no fish grazing, the survival of colonial ascidians was greater and the panels were dominated by arborescent bryozoans and ascidians.

Tags: 10 000000, 11 000000, 20 000000, 22 000000, 27 558003, 28 401000, 35 000000, 35 013002, 37 465002, Aquatic Habitat, Ascidiacea, Benthic Habitat, Biosphere, Bryozoa, Community Structure, Competition, Didemnum augusti, Ecological Dynamics, Elminius modestus, Fish, Hydrozoa, Invertebrates, Marine Biology, Marine Invertebrates, Oceans, Penicipelta vittiger, Phyoxocephalidae, Polychaeta, Porifera, Port Phillip Bay, Portsea Pier, Predation, Species Recruitment, Succession, Zoology, artifical substrata, epifauna, pier piling, rocky substrata
Organization: College of Marine And Environmental Sciences (CMES), James Cook University (JCU)
Effects of predation on the distribution of shrimp in Western Port Bay, Victoria

This study investigated the influence of predation on the distribution of shrimp in Western Port Bay from July 1977 to January 1980. Predation by birds was determined by analysing the diets and feeding rates of the most abundant wading birds in the area, the Royal Spoonbill (Platalea regia), the White-faced Heron (Ardea novaehollandiae), and the Sacred Ibis (Threskiornis aethiopica). Predation by fish was determined by examining the gut contents of fish caught in the beam trawls. The shrimps found in the gut contents were identified and, where possible, sexed and carapace length measured. 

This study found that the major consumers of shrimps were the scorpaenid, Gymnapistes marmoratus (Australian Cobbler) and the short-headed worm-eel, Muraenichthys breviceps. The Royal Spoonbill feed almost solely on M.intermdieum, whereas the other 2 species of waders feed mostly on infauna. The larger-sized individuals, which tend to be females, are subject so higher predation pressure than other groups within species.

Tags: 28 756901, 28 767018, 28 770020, 28 781018, 37 068004, 37 287018, 63 619003, 63 619004, Aquatic Habitat, Ardea novaehollandiae, Australian cobbler, Benthic Habitat, Biosphere, Chlorotocella leptorhyncus, Community Structure, Ecological Dynamics, Flowering Plants, Gymnapistes marmoratus, Heterozostera tasmanica, Hippolyte caradina, Invertebrates, Macrobrachium spp., Malacostraca, Marine Biology, Marine Invertebrates, Muraenichthys breviceps, Oceans, Phillip Island, Platalea regia, Pontophilus candidus, Population Dynamics, Predation, Rhyll, Royal Spoonbill, Sacred Ibis, Short-headed worm-eel, Threskiornis aethiopica, Trophic Dynamics, Vegetation, Western Port Bay, White-faced Heron, Zoology, Zostera muelleri, carid prawn, carid shrimps, eelgrass, hump-backed shrimp, tidal flats
Organization: Cliffs Natural Resources
Effects of Reduced Light Availability on Carbon and Nitrogen Translocation in Posidonia sinuosa

The influence of shading on the translocation of carbon (C) and nitrogen (N) in Posidonia sinuosa plants was investigated from December 2004 to January 2005 in Cockburn Sound by measuring  13C and 15N isotopes in leaf material to determine whether changes in resource distribution may be a mechanism sustaining its growth during a period of light reduction.

Tags: 63 617003, Biogeochemical Cycles, Biosphere, Ecological Dynamics, Light Transmission, Marine Biology, Marine Plants, Oceans, Photosynthesis, Posidonia sinuosa, Stable Isotopes, Water Quality
Organization: Centre for Tropical Waters and Aquatic Research (TropWATER), James Cook University (JCU)
Effects of Sabella spallanzanii physical structure on soft sediment macrofaunal assemblages: effects on existing assemblages

The introduced European polychaete Sabella spallanzani  has become a dominant feature of sub-tidal habitats in south-eastern Australia.  This study examines the physical effects of Sabella spallanzanii on macrofaunal assembleges of soft sediments. The effects of S. spallanzanii on:  i) existing macrofaunal assemblege; ii) distribution of larvae and iii) colonisation of macrofauna were tested in sub-tidal soft sediments at Clifton Springs, Bellarine Peninsula, Port Phillip Bay, Victoria.     This dataset gives the macrofauna assemblege of soft sediment cores collected from five replicate plots, in each of four experimental treatments:  i) Real Sabella, a clump of 15 S. spallanzanii individuals transplanted from the surrounding region; ii) Mimic Sabella, a clump of 15 S. spallanzanii mimics;  iii) Control, undisturbed sediment without S. spallanzanii and  iv) Disturbed Control, disturbed sediments without S. spallanzanii.  Plots containing real and mimic Sabella were used to test if changes in the assemblage of macrofauna in the presence of Sabella could be attributed to physical effects alone.  A comparison of control and disturbed sediments was used to test if the disturbance created when transplanting Sabella into experimental plots contributed to any observed changes in the macrofauna assemblage. 

Comparisons between Real (RS) and Mimic Sabella (MS), and Control (C) and Disturbed Control (DC) treatments were found not to differ significantly for any of the individual taxa or combined groups. Consequently, data from RS and MS treatments were pooled and compared against pooled data from C and DC treatments.  This analysis found that the presence of Sabella reduced the abundance of harpacticoid copepods, cumaceans and ostracods by more than 50% compared with numbers found in sediment without Sabella.  Collectively these taxa made up 80% of the total numbers of individuals in soil cores; as such the total number of individuals was also significantly reduced by the presence of Sabella.

Tags: 22 000000, 22 083031, 23 199000, 23 236005, 23 315005, 24 000000, 27 100000, 27 254000, 28 090000, 28 401000, Aquatic Habitat, Bellarine Peninsula, Benthic Habitat, Biosphere, Bioturbation, Bivalvia, Crustaceans, Cumacea, Ecological Dynamics, Electroma georgiana, Gastropoda, Harpacticoida, Invertebrates, Marine Biology, Marine Invertebrates, Marine Sediments, Mysella donaciformis, Oceans, Ostracoda, Phyoxocephalidae, Polychaeta, Population Dynamics, Port Phillip Bay, Sabella spallanzanii, Zoology, larvae, subtidal
Organization: School of BioSciences, The University of Melbourne
Geoscience Australia Marine Survey GA0332 (SS05/2011): Natural hydrocarbon seepage survey of the offshore northern Perth Basin - Mineralogy of seabed sediments.

In September and October of 2011 Geoscience Australia surveyed part of the offshore northern Perth Basin in order to map potential sites of natural hydrocarbon seepage. The primary objectives of the survey were to map the spatial distribution of seepage sites and characterise the nature of the seepage at these sites (gas vs oil, macroseepage vs microseepage; palaeo vs modern day seepage) on the basis of: acoustic signatures in the water column, shallow subsurface and on the seabed; geochemical signatures in rock and sediment samples and the water column; and biological signatures on the seabed. Areas of potential natural hydrocarbon seepage that were surveyed included proven (drilled) oil and gas accumulations, a breached structure, undrilled hydrocarbon prospects, and areas with potential signatures of fluid seepage identified in seismic, satellite remote sensing and multibeam bathymetry data. Within each of these areas the survey acquired: water column measurements with the CTD; acoustic data with single- and multi-beam echosounders, sidescan sonar and sub-bottom profiler (sidescan not acquired in Area F as it was too deep in places); and sediment and biological samples with the Smith-McIntyre Grab. In addition, data were collected with a remotely operated vehicle (ROV), integrated hydrocarbon sensor array, and CO2 sensor in selected areas. Sampling with the gravity corer had limited success in many of the more shallow areas (A-E) due to the coarse sandy nature of the seabed sediments. This dataset comprises mineraology of the upper 2cm of seabed sediment. The mineral assemblage includes quartz, aragonite, calcite and high-Mg calcite expressed as mol %.

You can also purchase hard copies of Geoscience Australia data and other products at http://www.ga.gov.au/products-services/how-to-order-products/sales-centre.html

Tags: Marine Data, Marine Geoscience, continental shelf, geochemistry, marine, marine survey, seabed
Organization: Geoscience Australia
Effects of Sabella spallanzanii physical structure on soft sediment macrofaunal assemblages: effects on colonisation

The introduced European polychaete Sabella spallanzanii has become a dominant feature of sub-tidal habitats in south-eastern Australia.  This study examines the physical effects of  Sabella spallanzanii on macrofaunal assembleges of soft sediments.  Macrofaunal  assemblages  were compared in the presence and absence of real and mimic S. spallanzanni clumps within sub-tidal experimental plots at Clifton Springs, Bellarine Peninsula, Port Phillip Bay, Victoria. The effects of S. spallanzanii on:  i) existing macrofaunal assemblage; ii) distribution of larvae and iii) colonisation of macrofauna were tested.     This dataset gives the colonisation of macrofauna in trays of sediments which had been defaunated and embedded in sediments within  plots of   undisturbed sediment (Control)  and  plots that  contained a single clump of  15 S. spallanzanii individuals (Sabella).  Sediment trays were colonised predominantly by crustaceans, representing 91% of all individuals found.  The presence of Sabella clumps resulted in a significantly higher colonisation of Cylindroleberidid ostracods, but no other effects were detected.

Tags: 22 000000, 22 083031, 23 199000, 23 236005, 23 315005, 24 000000, 27 105000, 27 254000, 28 090000, 28 401000, Aquatic Habitat, Bellarine Peninsula, Benthic Habitat, Biosphere, Bioturbation, Bivalvia, Crustaceans, Cumacea, Cylindroleberididae, Ecological Dynamics, Electroma georgiana, Gastropoda, Harpacticoida, Invertebrates, Marine Biology, Marine Invertebrates, Marine Sediments, Mysella donaciformis, Oceans, Phyoxocephalidae, Polychaeta, Population Dynamics, Port Phillip Bay, Sabella spallanzanii, Zoology, larvae, subtidal
Organization: School of BioSciences, The University of Melbourne
Effects of sewage effluent and shorebird exclusion on intertidal infaunal assemblages

This experiment tested the effects of liquid effluents on infauna assemblages in the presence and absence of shorebirds. Small plots of sediment (70cm x 50cm) were dosed with sewage effluent, freshwater, seawater or control ('no dose') and were either open or closed to shorebird predation. The plots were set up in early summer 2000 with replicates of each combination of factors at 4 levels on the shore. Plots were sampled at 0, 4 and 6 weeks for infaunal abundances and biomass and surface sediment chlorophyll a levels.

Tags: 22 002000, 22 056001, 23 315052, 24 486001, 28 551000, Aquatic Habitat, Australonereis ehrlesi, Benthic Habitat, Biosphere, Capitellidae, Community Structure, Corophiidae, Ecological Dynamics, Environmental Impacts, Eutrophication, Human Dimensions, Invertebrates, Marine Biology, Marine Invertebrates, Montacuta semiradiata, Oceans, Port Phillip Bay, Predation, Salinator fragilis, Sewage, Trophic Dynamics, Western Treatment Plant, Zoology, effluent, infauna, mudflat, predation, resource enhancement, shorebirds, soft sediment
Organization: Department of Environment, Land, Water and Planning (DEWLP), Victorian Government
Effects of sewage effluent on 'outfall' infaunal assemblages.

This experiment tested the effects of secondary treated sewage effluent on infaunal assemblages that were collected 50m from a sewage outfall ('outfall' assemblage). Twelve intact sediment cores were collected from this site on the Western Treatment Plant foreshore (Port Phillip Bay, Victoria) and brought back to the laboratory. Four cores were assigned to each of three treatments, which were no dose of effluent, high dose (7mls effluent per minute) or a 'no escape' treatment. The experiment ran for 13 days in December 1999. Throughout the experimental period, dissolved oxygen levels were measured and animals that migrated from the sediment were collected, counted and identified. At the end of the experiment, infauna remaining in the sediment were counted and identified and the wet weight biomass of each species group was recorded.

Tags: 22 002000, 22 096000, 24 486001, 28 546000, 28 551000, Aquatic Habitat, Benthic Habitat, Biosphere, Capitellidae, Corophiidae, Ecological Dynamics, Gammaropsis sp., Invertebrates, Marine Biology, Marine Invertebrates, Oceans, Oxygen Demand, Port Phillip Bay, Salinator fragilis, Spionidae, Survival, Western Treatment Plant, Zoology, hypoxia, infauna, mudflat, soft sediment, vertical migration
Organization: Department of Environment, Land, Water and Planning (DEWLP), Victorian Government
Effects of sewage effluent on 'pulse' infaunal assemblages.

This experiment tested the effects of secondary treated sewage effluent on infauna assemblages that were taken from a 'reference' site immediately after a large dump of macroalgae had cleared from the mudflat. Macroalgae cover can have severe effects on infaunal assemblages so it was expected that the recent macroalgae dump would affect the responses of infauna to the effluent dosing. Twelve intact sediment cores were collected from this site on the Western Treatment Plant foreshore (Port Phillip Bay, Victoria) and brought back to the laboratory. Four cores were assigned to each of the two treatments, which were high dose (7mls effluent per minute) or no dose of effluent. The experiment ran for 13 days in October 1999. 

Throughout the experimental period, dissolved oxygen levels were measured and animals that migrated from the sediment were collected, counted and identified. At the end of the experiment, sediment chlorophyll levels were measured and infauna remaining in the sediment were counted and identified.

Tags: 22 002000, 22 096000, 24 486001, 28 546000, 28 551000, Aquatic Habitat, Benthic Habitat, Biosphere, Capitellidae, Corophiidae, Ecological Dynamics, Gammaropsis sp., Invertebrates, Marine Biology, Marine Invertebrates, Oceans, Oxygen Demand, Port Phillip Bay, Salinator fragilis, Spionidae, Survival, Western Treatment Plant, Zoology, hypoxia, infauna, mudflat, soft sediment, vertical migration
Organization: Department of Environment, Land, Water and Planning (DEWLP), Victorian Government
Energy Savings Initiative Reports

Please note: The Australian Government undertook further design work on a possible national Energy Savings Initiative (ESI). Reports, such as the ones which are provided below, have been prepared by consultants to assist with this work. However:

no decision has been made about whether a national ESI will be introduced
these reports should not be interpreted as reflecting Government thinking on the design of a possible national ESI (for example, comments by consultants about the eligibility of activities for creating certificates should not be interpreted as a proposed list of eligible activities under a possible national scheme)
the report should not be interpreted as a commitment by Government to a policy or course of action.

Tags: commercial building sector, energy, energy efficiency, industry
Organization: Australian Government Department of Climate Change, Energy, the Environment and Water
Effects of sewage effluent on 'reference' infaunal assemblages.

This experiment tested the effects of secondary treated sewage effluent on infauna assemblages that were collected 2km from a sewage outfall ('reference' assemblage). Twelve intact sediment cores were collected from this site on the Western Treatment Plant foreshore (Port Phillip Bay, Victoria) and brought back to the laboratory. Four cores were assigned to each of three treatments, which were low dose (3.5mls effluent per minute), high dose (7mls effluent per minute) or no dose of effluent. The experiment ran for 14 days in October 1997. 

Throughout the experimental period, dissolved oxygen levels were measured and animals that migrated from the sediment were collected, counted and identified. At the end of the experiment, sediment chlorophyll levels were measured and infauna remaining in the sediment were counted and identified.

Tags: 22 002000, 22 096000, 24 486001, 28 546000, 28 551000, Aquatic Habitat, Benthic Habitat, Biosphere, Capitellidae, Corophiidae, Ecological Dynamics, Gammaropsis sp., Invertebrates, Marine Biology, Marine Invertebrates, Oceans, Oxygen Demand, Port Phillip Bay, Salinator fragilis, Spionidae, Survival, Western Treatment Plant, Zoology, hypoxia, infauna, mudflat, soft sediment, vertical migration
Organization: Department of Environment, Land, Water and Planning (DEWLP), Victorian Government
Effects of trampling on rocky intertidal communities

This data is from an experiment that was designed to assess the impact of trampling on Hormosira mats, Xenostrobus beds and in areas of 'bare-rock' where Siphonaria diemenensis are the numerically dominant gastropod species. Experimental plots were walked on a number of times per month to match the seasonal changes in the number of people using the reefs. The experiment started in early February 1990 and sampled approximately every 3 months, after 10, 17, 25, 39 and 45 visits.  The variables measured in each strip were the percent cover of Hormosira and other non-turfing algae, number of gastropods per strip, number of Siphonaria and percent cover of Xenostrobus.

Tags: 23 220013, 24 488001, 54 100001, Aquatic Habitat, Benthic Habitat, Biosphere, Bunurong Marine Park, Coastal Habitat, Hormosira banksii, Marine Biology, Marine Invertebrates, Marine Plants, Marine Protected Areas, Oceans, Siphonaria diemenensis, Xenostrobus pulex, macroalgae, rocky intertidal
Organization: School of BioSciences, The University of Melbourne