Data

Tasmanian Slope Trophodynamics Study 1991-1993: Primary Productivity Data

Australian Ocean Data Network
CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/94427f74-84f7-4a10-8c5a-49d84bb4dadc&rft.title=Tasmanian Slope Trophodynamics Study 1991-1993: Primary Productivity Data&rft.identifier=Anzlic Identifier: ANZCW0306005211&rft.publisher=Australian Ocean Data Network&rft.description=This record describes the primary productivity data collected as part of the 1991-1993 Tasmanian Slope Trophodynamics Study undertaken by CSIRO Division of Fisheries. Primary productivity measurements were taken on 4 cruises of FRV Southern Surveyor on three 60 km transects across the continental shelf to the south and south-east of Tasmania in July 1991 (cruise SS 02/91), February 1992 (cruise SS 01/92), November 1992 (cruise SS 04/92) and April 1993 (cruise SS 03/93). There were typically 5-6 primary productivity stations per transect per cruise. At each station, water samples were collected in Niskin bottles from 3 depths and primary productivity was determined using 14C incubation experiments at a range of 4 light intensities. An additional, mmore intensive experiment was conducted over a 24 hour period at one site using samples from 6 depths incubated at seven light intensities. From these data, P vs I (photosynthesis versus irradiance) parameters were calculated, in particular alpha (the slope of the P vs I curve) and P-max, the light-saturated rate of carbon fixation. These values were then used to model primary production in the water column on a diel, seasonal, and spatially varying basis.Progress Code: completedMaintenance and Update Frequency: notPlannedStatement: Data source: original field data Experimental details: Using a small bottle incubation technique modified from Lewis & Smith (1983). Full details are given in the report.&rft.creator=Anonymous&rft.date=1999&rft.coverage=westlimit=145.9; southlimit=-45; eastlimit=148; northlimit=-43.7&rft.coverage=westlimit=145.9; southlimit=-45; eastlimit=148; northlimit=-43.7&rft_rights=No Restrictions&rft_subject=oceans&rft_subject=Earth Science | Biological Classification | Animals/Vertebrates | Fish&rft_subject=Earth Science | Biosphere | Aquatic Ecosystems | Pelagic Habitat&rft_subject=Earth Science | Biosphere | Ecological Dynamics | Ecosystem Functions | Food-Web Dynamics&rft_subject=Earth Science | Biosphere | Ecological Dynamics | Ecosystem Functions | Primary Production&rft_subject=CTDs (Conductivity-Temperature-Depth Profilers)&rft_subject=Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS&rft_subject=Research Voyage: SS 01/92&rft_subject=Research Voyage: SS 02/91&rft_subject=Research Voyage: SS 03/93&rft_subject=Research Voyage: SS 04/92&rft_subject=Trophodynamics of the south-east trawl deep-water stock (FIRDC project no. 91/17) 1991-1995&rft_subject=Ship: Southern Surveyor&rft_subject=Practical salinity of the water body&rft_subject=Temperature of the water body&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it&rft_subject=Pressure (measured variable) in the water body exerted by overlying sea water only&rft_subject=CTD&rft_subject=research vessel&rft.type=dataset&rft.language=English Access the data
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This record describes the primary productivity data collected as part of the 1991-1993 Tasmanian Slope Trophodynamics Study undertaken by CSIRO Division of Fisheries. Primary productivity measurements were taken on 4 cruises of FRV "Southern Surveyor" on three 60 km transects across the continental shelf to the south and south-east of Tasmania in July 1991 (cruise SS 02/91), February 1992 (cruise SS 01/92), November 1992 (cruise SS 04/92) and April 1993 (cruise SS 03/93). There were typically 5-6 primary productivity stations per transect per cruise. At each station, water samples were collected in Niskin bottles from 3 depths and primary productivity was determined using 14C incubation experiments at a range of 4 light intensities. An additional, mmore intensive experiment was conducted over a 24 hour period at one site using samples from 6 depths incubated at seven light intensities. From these data, P vs I (photosynthesis versus irradiance) parameters were calculated, in particular alpha (the slope of the P vs I curve) and P-max, the light-saturated rate of carbon fixation. These values were then used to model primary production in the water column on a diel, seasonal, and spatially varying basis.

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Progress Code: completed
Maintenance and Update Frequency: notPlanned
Statement: Data source: original field data Experimental details: Using a small bottle incubation technique modified from Lewis & Smith (1983). Full details are given in the report.

Notes

Credit
FRDC - funding (grant 91/17)
Credit
John Parslow
Credit
Tony Koslow
Credit
Brian Griffiths
Credit
Lesley Clementson
Credit
Chris Rathbone
Credit
Pru Bonham
Credit
Don McKenzie

Data time period: 1991-07 to 1993-04

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148,-43.7 148,-45 145.9,-45 145.9,-43.7 148,-43.7

146.95,-44.35

text: westlimit=145.9; southlimit=-45; eastlimit=148; northlimit=-43.7

Subjects
CTD | CTDs (Conductivity-Temperature-Depth Profilers) | Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS | Earth Science | Biological Classification | Animals/Vertebrates | Fish | Earth Science | Biosphere | Aquatic Ecosystems | Pelagic Habitat | Earth Science | Biosphere | Ecological Dynamics | Ecosystem Functions | Food-Web Dynamics | Earth Science | Biosphere | Ecological Dynamics | Ecosystem Functions | Primary Production | Practical salinity of the water body | Pressure (measured variable) in the water body exerted by overlying sea water and any medium above it | Pressure (measured variable) in the water body exerted by overlying sea water only | Research Voyage: SS 01/92 | Research Voyage: SS 02/91 | Research Voyage: SS 03/93 | Research Voyage: SS 04/92 | Ship: Southern Surveyor | Temperature of the water body | Trophodynamics of the south-east trawl deep-water stock (FIRDC project no. 91/17) 1991-1995 | oceans | research vessel |

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Other Information
Notes on experiments examining factors affecting rates of 14C incorporation - from GRIFFITHS Brian (1991) (Documentation Link)

url : https://www.marine.csiro.au/datacentre/projects/BioData/PDFs/BOX_AB2012_1066/C2012_7177.pdf

Tasmanian slope trophodynamics. Final report to Fisheries Research and Development Corporation. (Documentation Link)

url : https://publications.csiro.au/rpr/pub?pid=procite:254d5232-a692-4b52-97e0-d7a78e014941

Identifiers
  • Local : Anzlic Identifier: ANZCW0306005211
  • Local : Marlin Record Number: 5211
  • global : 94427f74-84f7-4a10-8c5a-49d84bb4dadc