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Assessing the effects of changes in Great Barrier Reef Marine Park Zoning plans on southern mid-shelf shoals using Baited Remote Underwater Video Stations (BRUVS) (TM) (MTSRF Project 4.8.2)

Created 24/06/2017

Updated 09/10/2017

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Surveys were undertaken in February/March and August/September 2007 (Autumn and Spring) and October 2009 (Spring) on two pairs of discrete deepwater shoals in the mid-shelf section of the southern Great Barrier Reef - East and West Warregos; Karamea and Barcoo Banks. Within each pair, one shoal was from a 'Green' (closed to all fishing) and the other from a 'Blue' (open to fishing) zone, based on the rezoning carried out in 2004. The demersal vertebrate communities were sampled using non-extractive Baited Remote Underwater Video Stations (BRUVS), which revealed a diverse (c250 species) fauna of fish, sharks, rays and seasnakes.

Variables recorded: Habitat composition of underlying substratum (sand, rubble, consolidated outcrop or reef), and epibenthic community (hard coral, soft coral, sponge, macroalgae, whips and gorgonians, encrusting organisms, bare substratum) - estimated from BRUVS field of view as percentage cover of each component, to nearest 10%. Zone (Green, G; or Blue, B); Reef name; Habitat class (coral - coral dominated reef; garden - gorgonian and seawhip garden; rubble - low relief rubble field; sand - open sandy seabed); Depth (m; or shallow, deep); Latitude and longitude (ship's GPS position at deployment); Trip (1 - February, autumn; 2 - August/September, spring). In some (stereo) BRUVs the size of fishes was recorded (mm).

Fish species were placed in categories depending on the likelihood of being caught and retained by line fishers: (a) 'Highly sought after reef dwelling species' - the most desirable reef dwelling species based on eating qualities and size, as well as their reef dwelling habits. (b) 'Sought after reef dwelling and pelagic species' - as in (a) plus pelagic and semi-pelagic species, and smaller, acceptable food fishes. (c) 'All species considered likely to be caught by line fishers including by-catch' - as in (b) plus the undesirable fishes that form by-catch. (d) 'Species considered unlikely to be caught by line fishers' - all species unlikely to be hooked because of their dietary preferences or small size.

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Title Assessing the effects of changes in Great Barrier Reef Marine Park Zoning plans on southern mid-shelf shoals using Baited Remote Underwater Video Stations (BRUVS) (TM) (MTSRF Project 4.8.2)
Language English
Licence Other
Landing Page https://devweb.dga.links.com.au/data/dataset/d40f2d3b-f2a3-44c1-afdc-5121ca830e43
Contact Point
Australian Institute of Marine Science
adc@aims.gov.au
Geospatial Coverage {"type": "Polygon", "coordinates": [[[151.5351, -24.1237], [152.5025, -24.1237], [152.5025, -22.6379], [151.5351, -22.6379], [151.5351, -24.1237]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Assessing the effects of changes in Great Barrier Reef Marine Park Zoning plans on southern mid-shelf shoals using Baited Remote Underwater Video Stations (BRUVS) (TM) (MTSRF Project 4.8.2)". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/assessing-the-effects-of-changes-in-great-barrier-reef-marine-park-zoning-plans-on-southern-mid

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No duplicate datasets found.