Chlorophyll sampling in the coastal waters of south eastern Tasmania

Chlorophyll a concentration is widely used as a proxy to describe trends in phytoplankton biomass over spatial and temporal scales. The concentration of chlorophyll a in Storm Bay showed surprisingly little variation across the seasons. There was a gradient in concentration from site 1 to site 3, where chlorophyll a decreased slightly. It was highest and most variable at the inshore sites 1 and 9, and lowest at site 3, furthest out in the bay. There was no clear annually recurrent seasonal bloom, although data suggests higher values in spring and autumn (see later time series).

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
ORCID ID >

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
ORCID ID >

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
ORCID ID >

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
ORCID ID >

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
ORCID ID >

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
Keywords (Place)
  • Storm Bay
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
Keywords (Discipline)
  • Temperate Reef
AODN Platform Vocabulary
AODN Discovery Parameter Vocabulary
Keywords (Theme)
  • Concentration of phaeophytin per unit volume of the water body
  • GC_CHLOROPHYLL_A_STDDEV
  • PT_CHLOROPHYLL_A_STDDEV
  • PP_CHLOROPHYLL_A_STDDEV
  • PT_CHLOROPHYLL_B_STDDEV
  • PT_CHLOROPHYLL_C_STDDEV
  • PHAEOPHYTIN_STDDEV
AODN Instrument Vocabulary

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=948e4895-5be1-4a84-af35-016ced9b2245 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

Identifier

Code
Downwelling vector irradiance as photons (PAR wavelengths) in the water body
Name
LICOR_AV

Identifier
http://vocab.aodn.org.au/def/unitsofmeasure/entity/585
Name
Micromoles per second per square metre

Identifier

Code
Sea-floor depth below surface of the water body
Name
DEPTH

Identifier
http://vocab.nerc.ac.uk/collection/P06/current/ULAA
Name
Metres

Identifier

Code
Secchi depth
Name
DEPTH_SECCHI

Identifier
http://vocab.nerc.ac.uk/collection/P06/current/ULAA
Name
Metres
Description
See VOLUME_FILTERED for volume of water collected (ml) and used for extraction.

Identifier

Code
Concentration of chlorophyll-a per unit volume of the water body
Name
GC_CHLOROPHYLL_A

Identifier
http://vocab.nerc.ac.uk/collection/P06/current/UGPL
Name
Micrograms per litre
Description
Standard Deviation of spectrophotometer analysis Chlorophyll A (Goltermann and Climo)
Name
GC_CHLOROPHYLL_A_STDDEV

Description
Standard Deviation of spectrophotometer analysis Chlorophyll A (Parsons Phaeopigments)
Name
PT_CHLOROPHYLL_A_STDDEV

Description
Standard Deviation of spectrophotometer analysis Chlorophyll A (Parsons Trichromatic)
Name
PP_CHLOROPHYLL_A_STDDEV

Description
See VOLUME_FILTERED for volume of water collected (ml) and used for extraction.

Identifier

Code
Concentration of chlorophyll-b per unit volume of the water body
Name
PT_CHLOROPHYLL_B

Identifier
http://vocab.nerc.ac.uk/collection/P06/current/UGPL
Name
Micrograms per litre
Description
Standard Deviation of spectrophotometer analysis Chlorophyll B (Parsons Trichromatic)
Name
PT_CHLOROPHYLL_B_STDDEV

Description
See VOLUME_FILTERED for volume of water collected (ml) and used for extraction.

Identifier

Code
Concentration of total chlorophyll-c per unit volume of the water body
Name
PT_CHLOROPHYLL_C

Identifier
http://vocab.nerc.ac.uk/collection/P06/current/UGPL
Name
Micrograms per litre
Description
Standard Deviation of spectrophotometer analysis Chlorophyll C (Parsons Trichromatic)
Name
PT_CHLOROPHYLL_C_STDDEV

Description
See VOLUME_FILTERED for volume of water collected (ml) and used for extraction.
Name
Concentration of phaeophytin per unit volume of the water body

Name
PHAEOPHYTIN

Identifier
http://vocab.nerc.ac.uk/collection/P06/current/UGPL
Name
Micrograms per litre
Description
Standard Deviation of spectrophotometer analysis Phaeophytin (Parsons Phaeopigments)
Name
PHAEOPHYTIN_STDDEV

Distribution Information

Distribution format
  • CSV

OnLine resource
DATA ACCESS - Chlorophyll sampling [direct download]

OnLine resource
PUBLICATION - Salmon Sub-program: Marine currents, nutrients and plankton in the coastal waters of south eastern Tasmania and responses to changing weather patterns.

OnLine resource
imas:ECP_GEOSERVER_CHLOROPHYLL

MAP - Chlorophyll sampling locations

OnLine resource
imas:ECP_GEOSERVER_CHLOROPHYLL

This OGC WFS service returns the data in subsettable CSV format.

OnLine resource
View and download this data through the interactive IMAS Data Portal.

Resource lineage

Statement
An integrated water column sample (12 m) using a weighted hose was collected for chlorophyll a analysis from February 2010. Prior to this, samples were collected from 1 m below the surface. Following the decision to include the integrated sampler, the sampling regime was revised in the following way. The contents of four sampling tube collections were mixed together and sub-sampled: 2 L samples for chlorophyll a were kept cold and dark until processing in the laboratory on return to shore. Water samples were also 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. Chlorophyll a concentrations were determined after extraction of photosynthetic pigments using acetone 90:10 water (vol/vol), sonification and centrifuging to remove filter paper. Absorbances were measured using a Varian CBE cintra 10E spectrometer, and standard equations were applied to determine chlorophyll concentrations.
Hierarchy level
Dataset
Hierarchy level
Dataset

Platform

Identifier

Code
research vessel
Hierarchy level
Dataset

Instrument

Identifier

Code
LI-COR LI-192 PAR sensor
Hierarchy level
Dataset

Instrument

Identifier

Code
spectrophotometers

Metadata

Metadata identifier
948e4895-5be1-4a84-af35-016ced9b2245

Language
English
Character encoding
UTF8

Point of contact

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - IMAS Data Manager
Parent metadata

Type of resource

Resource scope
Dataset
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/948e4895-5be1-4a84-af35-016ced9b2245

Point of truth URL of this metadata record

Date info (Creation)
2020-08-21T10:20:29
Date info (Revision)
2020-08-21T10:20:29

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

Spatial extent

N
S
E
W


Keywords

Concentration of phaeophytin per unit volume of the water body GC_CHLOROPHYLL_A_STDDEV PHAEOPHYTIN_STDDEV PP_CHLOROPHYLL_A_STDDEV PT_CHLOROPHYLL_A_STDDEV PT_CHLOROPHYLL_B_STDDEV PT_CHLOROPHYLL_C_STDDEV
AODN Discovery Parameter Vocabulary
Concentration of chlorophyll-a per unit volume of the water body Concentration of chlorophyll-b per unit volume of the water body Concentration of total chlorophyll-c per unit volume of the water body Downwelling vector irradiance as photons (PAR wavelengths) in the water body Sea-floor depth below surface of the water body Secchi depth
NASA/GCMD Keywords, Version 8.5
EARTH SCIENCE | AGRICULTURE | AGRICULTURAL AQUATIC SCIENCES | AQUACULTURE EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | PROTISTS | FLAGELLATES | DINOFLAGELLATES EARTH SCIENCE | OCEANS | OCEAN CHEMISTRY | PIGMENTS | CHLOROPHYLL EARTH SCIENCE | OCEANS | OCEAN CIRCULATION | OCEAN CURRENTS EARTH SCIENCE | TERRESTRIAL HYDROSPHERE | WATER QUALITY/WATER CHEMISTRY

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Associated resources

Not available