ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=http://metadata.imas.utas.edu.au:/geonetwork/srv/en/metadata.show?uuid=6654433b-b0c1-43a2-92c6-76734fd6355e&rft.title=Management options to minimise formation of urchin barrens: using belt transect surveys to monitor benthic community structure&rft.identifier=http://metadata.imas.utas.edu.au:/geonetwork/srv/en/metadata.show?uuid=6654433b-b0c1-43a2-92c6-76734fd6355e&rft.publisher=Institute for Marine and Antarctic Studies, University of Tasmania&rft.description=Belt transect surveys (50m) were used to monitor the benthic community structure through time at experimental (lobster additions/ research reserve sites or abalone diver urchin culls) and control sites in eastern Tasmania. Measures of percentage cover of key algal guilds, percentage of reef grazed by sea urchins, number of sea urchins (Centrostephanus rodgersii, Heliocidaris erythrogramma), Abalone (Haliotis Rubra), Rock lobsters (Jasus edwardsii) and type of substratum were recorded.50 metre belt transects were used to monitor benthic community structure through time at impacted and control sites in eastern Tasmania. All the transect positions are approximately the same across sampling periods, these positions were recorded with a GPS. The transects were deployed from a boat following a depth contour, i.e. along shore transects. Two divers were deployed into the water at one end of the transect. The transect line was marked every 5 m. The divers swam along the line transect surveying a corridor of 1 metre width (2 metres width to assess Rock lobsters density). Data was recorded every 5 metres; every organism with more than half of the body inside the area was recorded. Every 5 metre segment of the transect was swam twice, first close to the bottom counting sea urchin, abalone, lobsters and general understory coverage, and second about 2 metres from the seabed to assess total percentage cover of kelp, barren, and substratum type (i.e. size-grading of rock types).GPS used datum WGS84.&rft.creator=Ling, Scott, Dr &rft.creator=Johnson, Craig, Prof. &rft.date=2011&rft.coverage=northlimit=-41.2; southlimit=-41.4; westlimit=148.3; eastLimit=148.5&rft.coverage=northlimit=-42.15; southlimit=-42.35; westlimit=148.2; eastLimit=148.4&rft.coverage=northlimit=-42.5; southlimit=-42.7; westlimit=148; eastLimit=148.2&rft.coverage=northlimit=-42.8; southlimit=-43; westlimit=147.8; eastLimit=148&rft.coverage=northlimit=-43; southlimit=-43.1; westlimit=147.9; eastLimit=148&rft_rights=Creative Commons Attribution http://creativecommons.org/licenses/by/4.0/&rft_rights=See point of contact for access to the data. Data will be available upon publication.&rft_rights=The data described in this record are the intellectual property of University of Tasmania through the Institute for Marine and Antarctic Studies&rft_subject=Biota&rft_subject=Centrostephanus Rodgersii&rft_subject=Jasus Edwardsii&rft_subject=Haliotis Rubra&rft_subject=Ecklonia Radiata&rft_subject=Phyllospora Comosa&rft_subject=Macrocystis Pyrifera&rft_subject=Heliocidaris Erythrogramma&rft_subject=Urchin Barrens&rft_subject=Echinoderms&rft_subject=Earth Science&rft_subject=Biological Classification&rft_subject=Animals/invertebrates&rft_subject=Grazing Dynamics/plant Herbivory&rft_subject=Biosphere&rft_subject=Ecological Dynamics&rft_subject=Species/population Interactions&rft_subject=Reef Habitat&rft_subject=Aquatic Ecosystems&rft_subject=Range Changes&rft_subject=Marine Habitat&rft_subject=Macroalgae (Seaweeds)&rft_subject=Brown Algae&rft_subject=Benthic Habitat&rft_subject=Community Structure&rft_subject=Community Dynamics&rft_subject=Temperate Reef&rft_subject=Marine and Estuarine Ecology (Incl. Marine Ichthyology)&rft_subject=Biological Sciences&rft_subject=Ecology&rft_subject=Ecological Impacts of Climate Change&rft_subject=Environmental Sciences&rft_subject=Ecological Applications&rft.type=dataset&rft.language=English Access the data

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Creative Commons Attribution
http://creativecommons.org/licenses/by/4.0/

See point of contact for access to the data. Data will be available upon publication.

The data described in this record are the intellectual property of University of Tasmania through the Institute for Marine and Antarctic Studies

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Full description

Belt transect surveys (50m) were used to monitor the benthic community structure through time at experimental (lobster additions/ research reserve sites or abalone diver urchin culls) and control sites in eastern Tasmania. Measures of percentage cover of key algal guilds, percentage of reef grazed by sea urchins, number of sea urchins (Centrostephanus rodgersii, Heliocidaris erythrogramma), Abalone (Haliotis Rubra), Rock lobsters (Jasus edwardsii) and type of substratum were recorded.

Lineage

50 metre belt transects were used to monitor benthic community structure through time at impacted and control sites in eastern Tasmania. All the transect positions are approximately the same across sampling periods, these positions were recorded with a GPS. The transects were deployed from a boat following a depth contour, i.e. along shore transects.

Two divers were deployed into the water at one end of the transect. The transect line was marked every 5 m. The divers swam along the line transect surveying a corridor of 1 metre width (2 metres width to assess Rock lobsters density). Data was recorded every 5 metres; every organism with more than half of the body inside the area was recorded. Every 5 metre segment of the transect was swam twice, first close to the bottom counting sea urchin, abalone, lobsters and general understory coverage, and second about 2 metres from the seabed to assess total percentage cover of kelp, barren, and substratum type (i.e. size-grading of rock types).
GPS used datum WGS84.

Created: 16 09 2011

Data time period: 04 2007 to 02 2011

This dataset is part of a larger collection

148.5,-41.2 148.5,-41.4 148.3,-41.4 148.3,-41.2 148.5,-41.2

148.4,-41.3

148.4,-42.15 148.4,-42.35 148.2,-42.35 148.2,-42.15 148.4,-42.15

148.3,-42.25

148.2,-42.5 148.2,-42.7 148,-42.7 148,-42.5 148.2,-42.5

148.1,-42.6

148,-42.8 148,-43 147.8,-43 147.8,-42.8 148,-42.8

147.9,-42.9

148,-43 148,-43.1 147.9,-43.1 147.9,-43 148,-43

147.95,-43.05

Other Information
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uri : http://data.imas.utas.edu.au/portal/home?uuid=6654433b-b0c1-43a2-92c6-76734fd6355e