TemperateReefBase Geonetwork Catalogue
Coastal and estuarine resource condition assessment, a baseline survey in the southern NRM region, Tasmania: Pitt Water / Orielton Lagoon
A 12-month program was developed and implemented in order to obtain baseline information on water quality (salinity, water temperature, dissolved oxygen, turbidity, pH, dissolved nutrients, silica), ecological condition as shown by Chlorophyll a, benthic macroinvertebrates, pathogens, and habitat extent determined from habitat mapping. Five key estuaries and coastal waters were assessed in the Southern NRM Region of Tasmania. The data represented by this record was collected in Pitt Water / Orielton Lagoon.
Simple
Identification info
- Date (Creation)
- 2011-11-21T10:33:00
Principal investigator
Tasmanian Aquaculture and Fisheries Institute (TAFI) - Crawford, Christine, Dr
Private Bag 49
Hobart
TAS
7001
Australia
Collaborator
Tasmanian Aquaculture and Fisheries Institute (TAFI) - Temby, Nepelle
Private Bag 49
Hobart
TAS
7001
Australia
- Purpose
- This projects' data was obtained as part of the trial implementation of the Coastal and Estuarine Resource Condition Assessment (CERCA) project.
- Credit
- Natural Resource Management (NRM) South
- Credit
- Natural Heritage Trust
- Status
- Completed
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Crawford, Christine, Dr
IMAS - Taroona
Private Bag 49
Hobart
TAS
7001
Australia
Point of contact
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Ross, Jeff, Dr
IMAS - Taroona
Private Bag 49
Hobart
TAS
7001
Australia
- Temporal resolution
-
P0Y1M0DT0H0M0S
- Topic category
-
- Oceans
Extent
N
S
E
W
))
- Geographic identifier
-
3414:227:485
- Title
- c-squares
- Date (Creation)
- 2001-12-13T00:00:00
Owner
CSIRO Marine and Atmospheric Research
Temporal extent
- Time period
- 2007-04-01T00:00:00 2008-04-30T00:00:00
Vertical element
- Minimum value
- 0
- Maximum value
- 10
- Identifier
- EPSG::5715
- Name
- MSL depth
- Maintenance and update frequency
- Not planned
Resource format
- Title
- Microsoft Excel (xls)
- Date
- Edition
- 2003
- Keywords (Theme)
-
- Human impact
- Degradation
- Monitoring program
- Benthic macroinvertebrates
- Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
- Keywords (Discipline)
-
- Temperate Reef
- Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
- Keywords (Theme)
-
- Salinity
- Temperature
- Dissolved oxygen
- Turbidity
- Ammonia
- Nitrate plus Nitrite
- Reactive phosphorus
- Silica
- Chlorophyll a
- Abundance - benthic macroinvertebrates
- pH
Resource constraints
- Classification
- Unclassified
Resource constraints
- Use limitation
- The data described in this record are the intellectual property of the University of Tasmania through the Tasmanian Aquaculture and Fisheries Institute.
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by/2.5/au/88x31.png
License Graphic
- Title
- Creative Commons Attribution 2.5 Australia License
- Website
-
http://creativecommons.org/licenses/by/2.5/au/
License Text
- Other constraints
- The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).
Associated resource
- Title
- Tasmanian Estuaries Monitoring
- Date (Creation)
- 2011-11-16T00:00:00
- Character encoding
- UTF8
- Supplemental Information
- Temby, N. & Crawford, C. (2008) Coastal and estuarine resource condition assessment, a baseline survey in the southern NRM region, Tasmania. NHT Final Report
Content Information
- Content type
- Physical measurement
- Name
- Salinity
- Name
- ppt
- Name
- Temperature
- Name
- Degrees celcius
- Name
- Dissolved oxygen
- Name
- DO
- Name
- percentage saturation
- Name
- pH
- Name
- Turbidity
- Name
- NTU
- Name
- Ammonia
- Name
- NH4
- Name
- mg/L
- Name
- Nitrate plus Nitrite
- Name
- NOx
- Name
- mg/L
- Name
- Reactive phosphorus
- Name
- P
- Name
- mg/L
- Name
- Silica
- Name
- mg/L
- Name
- Chlorophyll a
- Name
- ug/L
- Name
- Abundance - benthic macroinvertebrates
Distribution Information
- Distribution format
-
- Microsoft Excel (xls)
Distributor
- OnLine resource
- DATA ACCESS - Pittwater Orielton Lagoon dataset [direct download
- OnLine resource
- REPORT - Final project report [direct download]
Resource lineage
- Statement
- A minimum of 5 sites at key locations in each estuary or coastal waters were selected for monitoring over a 12 month period. Due to the availability of longer-term data, Little Swanport was an exception to this, with only 1 site selected for water quality monitoring over the 12 month period. It was important that each site was revisited using coordinates stored on a GPS and that monitoring methodology remained consistent over time so that any changes could be clearly identified. GPS co-ordinates (decimal latitude/longitude) for the 24 sites sampled in this study are provided in the report. The indicators examined for this study were: · Salinity (ppt) · Water temperature (oC) · Dissolved Oxygen (DO) (% Saturation) · Turbidity (NTU) · pH · Dissolved nutrients – ammonia (NH4 mg/L), nitrate and nitrite (NOx mg/L), and reactive phosphorus (P mg/L), silica, molybdate reactive (mg/L) · Chlorophyll a · Animal/plant species abundance - Benthic macroinvertebrates The methodology for monitoring each indicator has been described in a report (Crawford 2006, available at http://eprints.utas.edu.au/view/authors/Crawford,_C.html) that provides information from a user’s perspective on monitoring each indicator in Tasmania. The indicators outlined above were examined between April 2007 and April 2008 at monthly intervals. Temperature, salinity and dissolved oxygen were measured monthly at every site (see Fig 2-6) at 1 m intervals from the surface (0 m) to the bottom of the water column, allowing the construction of vertical profiles. The exact depth of each profile was recorded where the bottom did not fall exactly on a 1 m interval. Turbidity (NTU) and pH of surface waters were tested at every site. Three replicate samples at every site each month were taken for turbidity measurements and then averaged for graphing purposes. Dissolved nutrients (ammonia, nitrate plus nitrite (NOx) and soluble reactive phosphorous) and silica were sampled monthly from surface waters at key sites within each estuary. Bottles, syringes and filters were supplied by Analytical Services Tasmania (AST). Samples were kept on ice until returning to the Marine Research Laboratories (MRL) where the silica samples were refrigerated and the dissolved nutrient samples were frozen until they were transferred to AST for analysis within a week of collection. Ammonia, nitrate plus nitrite, dissolved reactive phosphorous and silica were quantified by AST at their NATA accredited laboratory using the APHA Method 4500. Chlorophyll a - One litre of water was taken from just below the surface at key sites within each estuary for chlorophyll a analysis at the Marine Research Laboratories (MRL), TAFI. Samples were transported to the MRL on ice where the sample was filtered through Whatman GF/C glass microfibre filters, recording the total volume of water filtered. The filters were folded, wrapped carefully in aluminium foil and frozen until analysis could be completed. Frozen filters were cut into small pieces and added to 10 mL of 90% acetone solution. The filter papers were then macerated in solution for approximately 10 seconds each using a cell disruptor. Tubes were then covered in aluminium foil to block out light and placed in a refrigerator for 12 hours. Tubes were then centrifuged for 15 minutes at 4 500 rpm. Extract was transferred into a glass 1 cm cuvet cell and placed into a Cintra 10 e spectrophotometer. Absorbance readings were taken at 630 nm, 647 nm, 664 nm and 750 nm with three replicate readings for every sample. These replicates were averaged to give the sample reading and the % standard deviation using the Cintra software package. Chlorophyll a levels were then determined using the Golterman and Clymo equation – see http://dipin.kent.edu/chlorophyll.htm. Benthic macroinvertebrates - Sediment samples for assessment of invertebrate fauna are collected in shallow water using a hand-held 150 mm diameter PVC pipe corer (sediment depth 100 mm; sample area 0.0177 m2). In deeper water sediment samples are collected either by a diver using the PVC pipe corer or from a boat using a Van Veen Grab (sampling area 0.05 – 0.1 m2). Five replicate cores were taken from each of the key sites within each estuary during Spring 2007. Two methods were utilised for sampling benthic macroinvertebrates. At shallow sites, five sediment cores were collected from 0.5 m depth using a benthic corer (150 mm diameter, 100 mm deep), whereas at the deeper sites, five benthic grab samples were collected using a Van Veen grab. Sediment samples were washed through a 1 mm mesh sieve and the material retained was collected and stored in 10% formalin/seawater solution for a minimum of 48 hours to ensure complete fixation. It was then stored in 70% alcohol. Invertebrates were sorted and identified to the lowest possible taxonomic level and each taxa counted by staff at the MRL, TAFI. Results of the benthic macroinvertebrate survey completed during Spring 2007 will be released in a supplementary report in late 2008.
- Hierarchy level
- Dataset
Metadata
- Metadata identifier
- 8f14bd1e-b3e2-4c00-a873-277b6c17dac6
- Language
- English
- Character encoding
- UTF8
Point of contact
- Parent metadata
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/8f14bd1e-b3e2-4c00-a873-277b6c17dac6
Point of truth URL of this metadata record
- Date info (Creation)
- 2021-03-30T21:47:05
- Date info (Revision)
- 2021-03-30T21:47:05
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available