Data

WAMSI Node 4.2.4 - Demersal fish assemblage sampling method comparison and power analyses - Capes

Australian Ocean Data Network
Harvey, Euan, Dr (Point of contact) Westera, Mark, Dr (Author)
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/01f81b37-50b3-40ff-894b-e9a02b5cb2ce&rft.title=WAMSI Node 4.2.4 - Demersal fish assemblage sampling method comparison and power analyses - Capes&rft.identifier=01f81b37-50b3-40ff-894b-e9a02b5cb2ce&rft.publisher=Australian Ocean Data Network&rft.description=In January 2008, stereo-video surveys were conducted in the proposed Capes Marine Park at 3 sites within each of three locations. It appears that the relative composition of the assemblage sampled by baited stereo-video stations and diver operated stereo-video transects differs over a gradient in latitude that is likely to correspond to variation in the trophic composition of fish communities. A cost-benefit analyses showed that baited stereo-video methods were generally more cost-efficient than diver operated stereo-video transects for detecting change in the fish assemblage. This data was used with data from Ningaloo and Abrolhos regions in a larger study that compared the assemblage composition, relative abundance and size of fishes sampled using Baited remote underwater stereo-video (stereo BRUV) and Diver-operated stereo-video systems (stereo DOV).Statement: Capes data was one year of multi-year surveyStatement: Within each region the sampling design was made orthogonal to the two sampling methods to be compared. The design of the studies within each region differed, reflecting the known environmental gradients and particular objectives of the individual investigations. Occasionally problems occurred with the stereo-video methods in a sample, which meant that it was not possible to obtain length measurements of fish, resulting in the sample being discarded. In the Capes region three random locations were sampled within the proposed Capes Marine Park. At each of these locations three random sites were sampled. Nine replicate 25 m x 5 m stereo DOV transects and nine replicate stereo BRUV deployments were analysed from each site. All surveys were conducted in comparable rocky reef habitats in 8-18 m water depth.&rft.creator=Westera, Mark, Dr&rft.date=2017&rft.coverage=westlimit=114.9; southlimit=-33.75; eastlimit=115; northlimit=-33.45&rft.coverage=westlimit=114.9; southlimit=-33.75; eastlimit=115; northlimit=-33.45&rft.coverage=uplimit=18; downlimit=8&rft.coverage=uplimit=18; downlimit=8&rft_rights=Capes: this study was funded by the South West Catchments Council (SWCC) , please consult with Mark Westera <MWestera@skm.com.au> and Euan Harvey <euan.harvey@uwa.edu.au> before accessing data.&rft_rights=*Disclaimer*: WAMSI and its Partners data, products and services are provided as is and WAMSI and its Partners do not warrant their fitness for a particular purpose. WAMSI and its Partners have made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. WAMSI and its Partners make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, WAMSI and its Partners exclude all liability to any person arising directly or indirectly from the use of the data, products and services.&rft_subject=oceans&rft_subject=biota&rft_subject=FISH&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=ANIMALS/VERTEBRATES&rft_subject=MARINE HABITAT&rft_subject=BIOSPHERE&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=VISIBLE IMAGERY&rft_subject=SPECTRAL/ENGINEERING&rft_subject=VISIBLE WAVELENGTHS&rft.type=dataset&rft.language=English Access the data
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Capes: this study was funded by the South West Catchments Council (SWCC) , please consult with Mark Westera and Euan Harvey before accessing data.

*Disclaimer*:
WAMSI and its Partners data, products and services are provided "as is" and WAMSI and its Partners do not warrant their fitness for a particular purpose. WAMSI and its Partners have made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. WAMSI and its Partners make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, WAMSI and its Partners exclude all liability to any person arising directly or indirectly from the use of the data, products and services.

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Brief description

In January 2008, stereo-video surveys were conducted in the proposed Capes Marine Park at 3 sites within each of three locations. It appears that the relative composition of the assemblage sampled by baited stereo-video stations and diver operated stereo-video transects differs over a gradient in latitude that is likely to correspond to variation in the trophic composition of fish communities. A cost-benefit analyses showed that baited stereo-video methods were generally more cost-efficient than diver operated stereo-video transects for detecting change in the fish assemblage. This data was used with data from Ningaloo and Abrolhos regions in a larger study that compared the assemblage composition, relative abundance and size of fishes sampled using Baited remote underwater stereo-video (stereo BRUV) and Diver-operated stereo-video systems (stereo DOV).

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Statement: Capes data was one year of multi-year survey
Statement: Within each region the sampling design was made orthogonal to the two sampling methods to be compared. The design of the studies within each region differed, reflecting the known environmental gradients and particular objectives of the individual investigations. Occasionally problems occurred with the stereo-video methods in a sample, which meant that it was not possible to obtain length measurements of fish, resulting in the sample being discarded. In the Capes region three random locations were sampled within the proposed Capes Marine Park. At each of these locations three random sites were sampled. Nine replicate 25 m x 5 m stereo DOV transects and nine replicate stereo BRUV deployments were analysed from each site. All surveys were conducted in comparable rocky reef habitats in 8-18 m water depth.

Notes

Credit
T.J. Langlois
Credit
E.S. Harvey
Credit
B. Fitzpatrick
Credit
J. Meeuwig
Credit
G. Shedrawil
Credit
M. Westera
Credit
D.L. Watson

Created: 11 08 2009

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115,-33.45 115,-33.75 114.9,-33.75 114.9,-33.45 115,-33.45

114.95,-33.6

text: westlimit=114.9; southlimit=-33.75; eastlimit=115; northlimit=-33.45

text: uplimit=18; downlimit=8

Subjects
ANIMALS/VERTEBRATES | AQUATIC ECOSYSTEMS | BIOLOGICAL CLASSIFICATION | BIOSPHERE | EARTH SCIENCE | Fish | Marine Habitat | SPECTRAL/ENGINEERING | Visible Imagery | VISIBLE WAVELENGTHS | biota | oceans |

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  • global : 01f81b37-50b3-40ff-894b-e9a02b5cb2ce
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