IMAS Metadata Catalogue
Nutrient sampling in the coastal waters of south eastern Tasmania
Biologically relevant macronutrients, nitrate + nitrite, silicate, phosphate and ammonia, were measured at all sites throughout the study. Nitrate + nitrite values (NOx) at the surface showed clear seasonal trends, peaking over winter and drawing down to near zero in summer and autumn. Phosphate concentrations also reached a peak in winter, which was associated with Southern Ocean influence. Median ammonium concentrations at all sites were generally <0.5 μM, with no clear peaks in any season or month. Overall, the lowest values were measured in August and other months showed reasonable spread around the median. Median silicate concentrations were consistently highest at sites 1 and 9, followed by site 5. Water from the River Derwent flows through site 1, then tracks east towards site 9 then site 5. Seasonally, silicate was generally highest in winter when the River Derwent outflow is also greatest.
Simple
Identification info
- Date (Creation)
- 2018-06-25
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Swadling, Kerrie, Dr
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
Point of contact
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Eriksen, Ruth, Dr
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
Point of contact
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Beard, Jason, Mr
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
Point of contact
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Crawford, Christine, Dr
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
- Credit
- Fisheries Research and Development Corporation (FRDC)
- Status
- Completed
Principal investigator
Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Swadling, Kerrie, Dr
IMAS - Hobart
Private Bag 129
Hobart
Tasmania
7001
Australia
- Temporal resolution
-
P0Y1M0DT0H0M0S
- Topic category
-
- Biota
Extent
N
S
E
W
))
Temporal extent
- Time period
- 2009-11-01 2015-04-30
Vertical element
- Minimum value
- 0
- Maximum value
- 90
- Identifier
- EPSG::5715
- Name
- MSL depth
- Maintenance and update frequency
- Not planned
- NASA/GCMD Keywords, Version 8.5
-
- EARTH SCIENCE | BIOSPHERE | ECOSYSTEMS | AQUATIC ECOSYSTEMS | PLANKTON | PHYTOPLANKTON
- EARTH SCIENCE | AGRICULTURE | AGRICULTURAL AQUATIC SCIENCES | AQUACULTURE
- EARTH SCIENCE | TERRESTRIAL HYDROSPHERE | WATER QUALITY/WATER CHEMISTRY
- EARTH SCIENCE | OCEANS | OCEAN CIRCULATION | OCEAN CURRENTS
- EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PROTISTS | FLAGELLATES | DINOFLAGELLATES
- Keywords (Place)
-
- Storm Bay
- Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
- Keywords (Discipline)
-
- Temperate Reef
- AODN Platform Vocabulary
- Keywords (Theme)
-
- Sampling depth
- DEPTH
- SILICATE
- PHOSPHATE
- NITRATE_NITRITE
- AMMONIUM
- NITRITE
- AODN Discovery Parameter Vocabulary
-
- Concentration of silicate {SiO4} per unit volume of the water body
- Concentration of phosphate {PO4} per unit volume of the water body
- Concentration of nitrate and nitrite {NO3 and NO2} per unit volume of the water body
- Concentration of ammonium {NH4} per unit volume of the water body
- Concentration of nitrite {NO2} per unit volume of the water body
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 Institute for Marine and Antarctic Studies. Please contact Kerrie Swadling (Principal Investigator) if you wish to use the data.
Resource constraints
- Linkage
-
http://i.creativecommons.org/l/by/4.0/88x31.png
License Graphic
- Title
- Creative Commons Attribution 4.0 International License
- Website
-
http://creativecommons.org/licenses/by/4.0/
License Text
- Other constraints
- Swadling, K.M., Eriksen, R.S., Beard, J.M. and Crawford, C.M. (2018) Phytoplankton sampling in the coastal waters of south eastern Tasmania. Institute for Marine and Antarctic Studies, University of Tasmania. Data accessed at http://metadata.imas.utas.edu.au/geonetwork/srv/en/metadata.show?uuid= d8e21793-beff-4f82-8807-d6c80557b6c2 on (access date).
- Other constraints
- Please contact Kerrie Swadling (Principal Investigator) if you wish to use the data.
Associated resource
- Title
- East Coast Plankton
- Alternate title
- ECP
- Date
- Association Type
- Larger work citation
- Language
- English
- Character encoding
- UTF8
- Supplemental Information
- Swadling, K.M., Eriksen, R.S., Beard, J.M. and Crawford, C.M. Institute for Marine and Antarctic Studies, 2017, Salmon Sub-program: Marine currents, nutrients and plankton in the coastal waters of south eastern Tasmania and responses to changing weather patterns, Hobart, Tasmania, June. CC BY 3.0
Content Information
- Content type
- Physical measurement
- Name
-
Sampling depth
- Name
-
DEPTH
- Identifier
- http://vocab.nerc.ac.uk/collection/P06/current/ULAA
- Name
- Metres
- Name
-
SILICATE
- Identifier
- http://vocab.nerc.ac.uk/collection/P06/current/UPOX
- Name
- Micromoles per litre
- Name
-
PHOSPHATE
- Identifier
- http://vocab.nerc.ac.uk/collection/P06/current/UPOX
- Name
- Micromoles per litre
Identifier
- Name
-
NITRATE_NITRITE
- Identifier
- http://vocab.nerc.ac.uk/collection/P06/current/UPOX
- Name
- Micromoles per litre
- Name
-
AMMONIUM
- Identifier
- http://vocab.nerc.ac.uk/collection/P06/current/UPOX
- Name
- Micromoles per litre
Identifier
- Name
-
NITRITE
- Identifier
- http://vocab.nerc.ac.uk/collection/P06/current/UPOX
- Name
- Micromoles per litre
Distribution Information
- Distribution format
-
-
CSV
-
CSV
- OnLine resource
-
DATA ACCESS - Nutrient sampling [direct download]
- OnLine resource
-
imas:ECP_GEOSERVER_NUTRIENTS
MAP - Nutrient sampling locations
- OnLine resource
-
imas:ECP_GEOSERVER_NUTRIENTS
This OGC WFS service returns the data in subsettable CSV format.
Resource lineage
- Statement
- Water samples were collected, using a 6 L or 8 L Niskin bottle, from 0.5 – 1 m below the surface, at 10 m depth, and within 5 m of the seabed. At site 3 an intermediate sample from 50 m was also collected. Subsamples were taken at each depth for macronutrients (unfiltered), and were frozen and stored in the dark until processing at the CSIRO Marine and Atmospheric Laboratories, Hobart. The biologically relevant nutrients, dissolved nitrate+nitrite, phosphate, ammonia and silicate concentrations (μM) were measured by CSIRO Hydrochemistry laboratory using standard colorimetric methodology adapted for flow injection analysis on a 5-channel Lachat Quick Chem 8000 series Automated Ion Analyser. Method detection limits were 0.02 μM P, 0.05 μM N, 0.05 μM Si, and 0.05 μM ammonia.
- Hierarchy level
- Dataset
- Hierarchy level
- Dataset
Platform
Identifier
- Code
- research vessel
Metadata
- Metadata identifier
-
d8e21793-beff-4f82-8807-d6c80557b6c2
- Language
- English
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/d8e21793-beff-4f82-8807-d6c80557b6c2
Point of truth URL of this metadata record
- Date info (Creation)
- 2019-03-06T17:30:54
- Date info (Revision)
- 2019-03-06T17:30:54
Metadata standard
- Title
- ISO 19115-3:2018
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available