Keyword
Earth Science | Biosphere | Ecological Dynamics | Species/Population Interactions | Population Dynamics
37 record(s)
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draft
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The iconic species examined in the MSE are turtles and sharks. For both groups the populations are represented by the animal agent model for post-larval stages and spatial dynamics and the blastula agent for reproduction and spatial dynamics of very early life history stages. This representation enables density dependent processes to apply to natural mortality at larval and post-larval stages and to egg production. It allows spatially explicit treatment of larval and post-larval stages, but there is no explicit spatial structure at the egg stage other than eggs being confined to their suitable habitat. Biological parameter values for the species were taken from the literature and modified slightly during model calibration to give plausible biomass levels under the levels of fishing pressure or catch recorded from the North West Shelf.
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Pilbara Marine Conservation Partnership (PMCP) surveys of stable isotope ratios and concentrations of important elements in the tissues of primary producers and consumers. The data include: * Stable isotope ratios (d15N and d13C) of muscle tissue of selected species of fishes, of leaves of seagrasses and mangroves, and of thalli of macroalgae * Concentrations of nitrogen and carbon (%N and %C) and C:N ratios for the same samples. These data are an output of the Pilbara Marine Conservation Partnership (PMCP) Coral Reef Health Theme.
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Two types of fish distribution data were sought for this study: point data or specimen data, and catch composition data. Data were obtained from oceanographic surveys by State and Australian Government research vessels, plus a few surveys from Australian commercial and foreign vessels. These data were used to construct a biogeographic framework from regionalisations of the continental slope of Australia's marine jurisdiction, based on the distributional patterns of the region's demersal fish fauna. Thousands of specimens were re-identified to secure accurate distribtions. Offshore demseral fishes are defined as those occurring below a depth of 40 metres. Historical data used, which does not adequately cover the entire region.
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Map showing annual mean ocean primary production extracted from global observations of ocean colour data from the moderate resolution imaging spectroradiometer (MODIS). This map has been produced by CSIRO for the National Oceans Office, as part of an ongoing commitment to natural resource planning and management through the 'National Marine Bioregionalisation' project.
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Fish and shark assemblage data are being obtained from the analysis of Stereo-BRUV footage captured in May 2014. Data is comprised of raw camera output stream files (.MTS) for 272 Stereo-BRUV drops in shallow water (~10m) between Exmouth and Dampier, Western Australia. Files are less than 1.9GB and total approximately 10TB. Videos are structured within Stereo-BRUV drops (identified with an OpCode i.e. NCB1-NCB272) with a left and right camera folder within each drop. Videos are lodged with the iVEC Data Store - https://data.ivec.org The Pilbara Marine Conservation Partnership (PMCP) was an initiative designed to enhance the net conservation benefits of the globally-significant coral reef ecosystems of the Pilbara (Western Australia) by providing an assessment of the condition and trajectory of key ecological values. These assessments were designed to inform and complement existing governance and management arrangements and the PMCP is intended to provide ongoing advice and assessment for conservation efforts in the region, providing lasting benefits. The PMCP concept is based on three core ecological components, namely: Coral Reef Health - concentrating mainly on habitat forming primary producers. Fish and Sharks - their community structure, interactions and impacts on lower trophic levels. Environmental Pressures - physical and anthropogenic factors that influence the condition of reefs and associated biota.
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The Ningaloo Marine Park (State Waters) Plan 1989 was designated A class in 1990. A review of the Management Plan began in 2000; this resulted in a revised Management Plan being approved by the Minister in January 2005. Changes in the current Management Plan include extending the Marine Park southwards to incorporate the full extent of the reef, increasing the number and extent of Sanctuary Zones, introducing Special Purpose Benthic Protection and shore-based line fishing zones. The purpose of this project is to assess the effectiveness of 1989 Management Plan and also provide what will become the first data point in a long-term data set. These data will become an integral part of several sections of the NRP, evaluating the effectiveness of zoning for biodiversity conservation, assessing the implications of zoning for fish populations and for fishing outside sanctuary zones. The surveys will provide data not only for newly established zones, but also for those zones already established within the park under previous zoning provisions. Where possible the survey will build on existing data sets, though these are limited in scope and spatial extent. Objectives For fish taxa targeted by anglers (e.g. labridae, lethrinidae, lutjanidae, serranidae, carangidae): - Measure the distribution, abundance and size-structure of key fish populations at Ningaloo - Provide data that will allow a quantitative comparison of these parameters to be made across Ningaloo Marine Park zones (pre-2005 sanctuary zones, new sanctuary zones, benthic protection zones, recreational zones and general use zones). - Provide data that will form the basis for being able to: - Measure the rate and magnitude of any changes in fish population size or structure related to changes in marine park zoning - Determine how responses of fish populations may vary with respect to factors such as size of reserve, type of reserve, distance from boundary and fish life-history - Parameterize and test spatially-explicit models of fish populations.
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Existing satellite data were analysed in order to characterise seasonal and inter-annual variation in remotely-sensed chlorophyll-a. To maximize spatial and temporal coverage we used merged data from SeaWIFS, MERIS, and MODIS produced by the ESA using the GSM algorithm (Maritorena and Siegel, 2005; Globcolour Project). We merged normalized water-leaving radiances (not individual chl-a algorithm outputs) within 4.6 km grid over a period of more than 16 years. Monthly averages of chlorophyl-a concentration (mg m-3) are presented. Attempts were made to correlate the data with Solander Underway data. These data were not validated. Encrypted ncdf4 files can be found at the Perth Pawsey Computer centre. The Pilbara Marine Conservation Partnership (PMCP) was an initiative designed to enhance the net conservation benefits of the globally-significant coral reef ecosystems of the Pilbara (Western Australia) by providing an assessment of the condition and trajectory of key ecological values. These assessments were designed to inform and complement existing governance and management arrangements and the PMCP is intended to provide ongoing advice and assessment for conservation efforts in the region, providing lasting benefits. The PMCP concept is based on three core ecological components, namely: Coral Reef Health - concentrating mainly on habitat forming primary producers. Fish and Sharks - their community structure, interactions and impacts on lower trophic levels. Environmental Pressures - physical and anthropogenic factors that influence the condition of reefs and associated biota.
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Fish and shark assemblage data are being obtained from the analysis of Stereo-BRUV footage captured in October 2014. Data is comprised of raw camera output stream files (.MTS and .MP4) for 84 Stereo-BRUV drops in shallow water (~8-20m) insise and outside sancatuary zones at The Monte Bello Islands, Western Australia. Files are less than 1.9GB and total approximately 1.2TB. Videos are structured within Stereo-BRUV drops (identified with an OpCode i.e. NCB1-NCB272) with a left and right camera folder within each drop. Videos are lodged with the iVEC Data Store - https://data.ivec.org The Pilbara Marine Conservation Partnership (PMCP) was an initiative designed to enhance the net conservation benefits of the globally-significant coral reef ecosystems of the Pilbara (Western Australia) by providing an assessment of the condition and trajectory of key ecological values. These assessments were designed to inform and complement existing governance and management arrangements and the PMCP is intended to provide ongoing advice and assessment for conservation efforts in the region, providing lasting benefits. The PMCP concept is based on three core ecological components, namely: Coral Reef Health - concentrating mainly on habitat forming primary producers. Fish and Sharks - their community structure, interactions and impacts on lower trophic levels. Environmental Pressures - physical and anthropogenic factors that influence the condition of reefs and associated biota.
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Fish and shark assemblage data are being obtained from the analysis of Stereo-BRUV footage captured in April 2015. Data is comprised of raw camera output stream files (.MTS and .MP4) for 40 Stereo-BRUV drops in transect from Cape Preston to the Monte Beloo Islands, Western Australia. Files are less than 1.9GB and total approximately 600GB. Videos are structured within Stereo-BRUV drops (identified with an OpCode i.e. NCB1-NCB272) with a left and right camera folder within each drop. Videos are lodged with the iVEC Data Store - https://data.ivec.org The Pilbara Marine Conservation Partnership (PMCP) was an initiative designed to enhance the net conservation benefits of the globally-significant coral reef ecosystems of the Pilbara (Western Australia) by providing an assessment of the condition and trajectory of key ecological values. These assessments were designed to inform and complement existing governance and management arrangements and the PMCP is intended to provide ongoing advice and assessment for conservation efforts in the region, providing lasting benefits. The PMCP concept is based on three core ecological components, namely: Coral Reef Health - concentrating mainly on habitat forming primary producers. Fish and Sharks - their community structure, interactions and impacts on lower trophic levels. Environmental Pressures - physical and anthropogenic factors that influence the condition of reefs and associated biota.
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Fish and shark assemblage data are being obtained from the analysis of Stereo-BRUV footage captured in January 2015. Data is comprised of raw camera output stream files (.MTS and .MP4) for 120 Stereo-BRUV drops in water 20-60 m at the Monte Bello Islands, Western Australia. Files are less than 1.9GB and total approximately 1.7TB. Videos are structured within Stereo-BRUV drops (identified with an OpCode i.e. NCB1-NCB272) with a left and right camera folder within each drop. Videos are lodged with the iVEC Data Store - https://data.ivec.org The Pilbara Marine Conservation Partnership (PMCP) was an initiative designed to enhance the net conservation benefits of the globally-significant coral reef ecosystems of the Pilbara (Western Australia) by providing an assessment of the condition and trajectory of key ecological values. These assessments were designed to inform and complement existing governance and management arrangements and the PMCP is intended to provide ongoing advice and assessment for conservation efforts in the region, providing lasting benefits. The PMCP concept is based on three core ecological components, namely: Coral Reef Health - concentrating mainly on habitat forming primary producers. Fish and Sharks - their community structure, interactions and impacts on lower trophic levels. Environmental Pressures - physical and anthropogenic factors that influence the condition of reefs and associated biota.