Data

Analysis of stable isotope ratios to investigate stock structure of red emperor and rankin cod in northern Western Australia

Australian Ocean Data Network
Luke Edwards (Distributes) Nowrojee, Rod (Point of contact) Rod Nowrojee (Point of contact)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/516811d7-cda0-207a-e0440003ba8c79dd&rft.title=Analysis of stable isotope ratios to investigate stock structure of red emperor and rankin cod in northern Western Australia&rft.identifier=516811d7-cda0-207a-e0440003ba8c79dd&rft.publisher=Australian Ocean Data Network&rft.description=The ratios of stable isotopes O-18/O-12 and C-13/C-12, in sagittal otolith carbonate from two tropical demersal teleosts, red emperor Lutjanus sebae and Rankin cod Epinephelis multinotatus, from several locations in northern Western Australia. differed between sites. On a broad scale, fish from the four locations, Shark Bay, Ningaloo, Pilbara, and Broome had stable isotope values that were sufficiently different to indicate separate stocks, and it is appropriate to manage these populations of the two species independently in these areas. On a smaller scale, there may be limited mixing of these species between the Pilbara trawl fishery and the trap and line fisheries operating out of Onslow and Broome. Values of stable oxygen isotopes were strongly related to sea surface temperature, although there were some sites in shallow water where low values of stable oxygen isotopes indicated that fish were living in warm water. The use of stable oxygen and carbon isotope values is a valuable, cost effective method of determining the degree of mixing of fish stocks. [References: 16]Maintenance and Update Frequency: unknownStatement: Original record compiled for the Western Australian Marine Science Institution (WAMSI), Project 3.8, 2008. Originally sourced from WA DEC Marine Policy and Planning Branch Pilbara and Lower West Kimberley Environmental Report Library. Date range generated from citation date, limited abstract information available.&rft.creator=Anonymous&rft.date=2017&rft.coverage=westlimit=114.01; southlimit=-21.97; eastlimit=119.63; northlimit=-18.6&rft.coverage=westlimit=114.01; southlimit=-21.97; eastlimit=119.63; northlimit=-18.6&rft_rights=No Restrictions&rft_subject=biota&rft_subject=Red Emperor&rft_subject=Rankin Cod&rft_subject=States, Territories (Australia) | Western Australia&rft_subject=Marine Features (Australia) | Shark Bay, WA&rft_subject=FISH&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=ANIMALS/VERTEBRATES&rft_subject=Marine Features (Australia) | Pilbara Coast, WA&rft_subject=Marine Features (Australia) | Ningaloo Marine Park, WA&rft_subject=Movement&rft_subject=Stable Isotopes&rft_subject=Stock Evaluation&rft.type=dataset&rft.language=English Access the data
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Brief description

The ratios of stable isotopes O-18/O-12 and C-13/C-12, in sagittal otolith carbonate from two tropical demersal teleosts, red emperor Lutjanus sebae and Rankin cod Epinephelis multinotatus, from several locations in northern Western Australia. differed between sites. On a broad scale, fish from the four locations, Shark Bay, Ningaloo, Pilbara, and Broome had stable isotope values that were sufficiently different to indicate separate stocks, and it is appropriate to manage these populations of the two species independently in these areas. On a smaller scale, there may be limited mixing of these species between the Pilbara trawl fishery and the trap and line fisheries operating out of Onslow and Broome. Values of stable oxygen isotopes were strongly related to sea surface temperature, although there were some sites in shallow water where low values of stable oxygen isotopes indicated that fish were living in warm water. The use of stable oxygen and carbon isotope values is a valuable, cost effective method of determining the degree of mixing of fish stocks. [References: 16]

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Maintenance and Update Frequency: unknown
Statement: Original record compiled for the Western Australian Marine Science Institution (WAMSI), Project 3.8, 2008. Originally sourced from WA DEC Marine Policy and Planning Branch Pilbara and Lower West Kimberley Environmental Report Library. Date range generated from citation date, limited abstract information available.

Notes

Credit
P.C. Stephenson
Credit
J.S. Edmonds
Credit
M.J. Moran
Credit
N. Caputi

Modified: 06 2008

Data time period: 2001 to 2001

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119.63,-18.6 119.63,-21.97 114.01,-21.97 114.01,-18.6 119.63,-18.6

116.82,-20.285

text: westlimit=114.01; southlimit=-21.97; eastlimit=119.63; northlimit=-18.6

Subjects
ANIMALS/VERTEBRATES | BIOLOGICAL CLASSIFICATION | EARTH SCIENCE | Fish | Marine Features (Australia) | Ningaloo Marine Park, WA | Marine Features (Australia) | Pilbara Coast, WA | Marine Features (Australia) | Shark Bay, WA | Movement | Rankin Cod | Red Emperor | Stable Isotopes | States, Territories (Australia) | Western Australia | Stock Evaluation | biota |

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  • global : 516811d7-cda0-207a-e0440003ba8c79dd