NIWA - Metadata Catalogue
Topic
environment
228 record(s)
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Chemical monitoring of sediments in estuaries within the Waikato region for Waikato Regional Council. Sampling sites are located in the Firth of Thames, Whaingaroa (Raglan ) Harbour, Port Waikato, Aotea Harbour, Kawhia Harbour and Tairua Harbour. Sampling frequency = every 5 years. Sampling began in 2003 (not at all sites) and is ongoing, but irregular. Number of sites = 103 total; 10 sites have been monitored twice, and 93 sites sampled once so far. Extent of site = 10,000m2 (100m x 100m). Number of replicates = 12 per site. Measured variables = Sediment characteristics (cadmium, nickel, lead, zinc, chromium, copper, arsenic, organics, antimony, mercury and silver). Sampling protocol & QA = Internal sampling protocol. All analysis on the sediment samples was undertaken on the sub-2mm fraction of the sediments and was conducted by Hills Laboratories
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Water quality monitoring of coastal waters within the Bay of Plenty region for Environment Bay of Plenty. Sampling sites are representative of harbours and estuaries throughout the region. Sampling frequency = 2monthly. Sampling began in 1990 and is ongoing. Number of sites = 30 total (27 high tide sites of which 21 are current and 3 low tide sites). Number of replicates = 1 per site. Measured variables = Water quality: salinity, conductivity, DO%, DOmg/l, temp, PH, E coli, Enterococci, faecal coliforms, TP, DRP, TN, NNN, NH4, Chlorophyll a, turbidity, suspended solids and black disc. Sampling protocol & QA = Internal sampling protocol using MoH/MfE Guidelines
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The NZ coastal classification looks at classifying the entire New Zealand coastline including the open coast and estuaries, rocky shores and unconsolidated shores. Shores and beaches were classified using the following broad parameters: Exposure; Coastal landform type; Foreshore sediment type; Hinterland characteristics. At present only the open coast unconsolidated shores and beaches have been classified as a starting point to keep the mapping task manageable.
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Snow observation records from Round Hill skifield from 1965-1986.
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Physical and biological monitoring of sandy beaches within the Southland region for Environment Southland. Sampling sites are located on Porpise and Orepuki Beach. Sampling frequency = annually for 3 years, then 5yearly (Feb). Sampling began in 2008 and is ongoing. Number of sites = 2 beaches. Extent of site = 2 transects spaced 50m apart spanning from high to low water marks. Number of replicates = 2 transects per site, 6 stations per transect, 3 replicate infaunal cores per station. Measured variables = Infaunal communities using 1mm mesh (species identified to lowest taxonomic level possible and enumerated). Sediment characteristics: grain size, redox (in field). Sampling protocol & QA = External taxonomic identification of infauna (Gary Stevenson of Coastal Marine Ecology Consultants). Basic sediment grain size = 2mm & 63µm sieves, gravimetric (% gravel, sand, and silt) conducted by Hills Laboratories.
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Consent requirement survey to monitor potential ecological effects on fish processing effluent from a seabed diffuser located 350 m offshore. Temporal coverage: 1980 (baseline) 2000-2011 (on-going monitoring) Number of sites: 9 sites Nelson Haven Boulder Bank, Nelson Sampling Frequency: 5 yearly Main marine environment sampled: Coastal (Boulder bank) Depth zone: Subtidal (7-8 m) Sediment type: Primarily hard Community association: Rocky reef Sampling method: Photo-quadrats, sediment cores Parameters collected: Sediment, epi-fauna (images only) Measured variables: Sediment: chemistry, particle size, organic content, TKN, HG levels; Community: epi-fauna composition (using dots on rocks (DOR) analysis from images Species/Community data: Benthic invertebrates, algae Other data collected: Unknown Collection: ongoing Quality assurance: Yes
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EcoConnect is NIWA's environmental forecasting and information service specialising in the creation and delivery of information that increases awareness of a broad range of past, current, and future environmental conditions, and of decision tools that use this information to mitigate environmental and commercial risk. One of the main advantages of using EcoConnect is the integration of all observation and forecast data within one user interface. EcoConnect system is running 24 hours a day, 7 days a week and is fully supported by both scientific and technical staff.
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Physical and biological monitoring of estuaries within the Tasman district for Tasman District Council. Sampling sites are located in Ruataniwha, Motupipi, Moutere and Waimea estuaries and Motueka Delta. Sampling frequency = annual (spring or summer). Sampling began in 2002 and is ongoing. Number of sites = 4 total. Extent of site = 1800m2 (60m x 30m). Number of replicates = 10 infaunal cores and 5 replicate sediment samples per site. Measured variables = Infaunal communities (species identified to lowest taxonomic level possible and enumerated). Epifaunal quadrat (0.25m2). Sediment characteristics: basic grain size, ash free dry weight, redox (in field), nitrogen, phosphorus, cadmium, nickel, lead, zinc, chromium and copper (ICPMS). Sediment erosion/deposition (cm/y): depth of sediment layer measured (using 4 concrete plates buried at most sites). Sampling protocol & QA = Benthic and sediment sampling use similar methods to those outlined by Robertson et al. (2002). Internal QA procedures. Larger fauna are indentified internally with small and cryptic animals sent to external taxonomic experts. Basic sediment grain size = 2mm & 63µm sieves, gravimetric (% gravel, sand, and silt)
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Meta information for hydrometric NIWA stations
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Annual monitoring of rocky reefs to ascertain impact of 2 nearby salmon farms. Temporal coverage: Te Pangu – from 2009, Clay Point – from 2007 (ongoing) Number of sites: 2 farms (8 sites) Sampling frequency: Annual Main marine environment sampled: Coastal Depth zone: Subtidal/coastal Sedimentary type: Hard Community association: Rocky reef Sampling method: Permanent quadrat photographs Parameters collected: Community composition Measured variables: Presence/absence, condition, abundance/diversity/area occupied by conspicuous biota Species/community data: Benthic invertebrates, algae Other data collection: Annual monitoring of the salmon farms is also conducted by the Cawthron Institute- sediment & water chemistry primarily. Quality assurance: Yes