Data

The Ecology of Cockburn Sound - Algal Epiphytes

Australian Ocean Data Network
Cambridge, Marion, Dr
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=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=2f6339a0-2a04-11dc-b961-00188b4c0af8&rft.title=The Ecology of Cockburn Sound - Algal Epiphytes&rft.identifier=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=2f6339a0-2a04-11dc-b961-00188b4c0af8&rft.description=The presence/absence of algal epiphytes on seagrass fronds in Cockburn Sound was recorded. Data includes the algal species, location, depth, quadrat, date.Plot sampling transects were set up at 15 locations around the Cockburn Sound (see thumbnail) A metal picket was driven into the bottom to mark the beginning of the transect. The second picket was placed a distance of 140 feet perpendicular to the beach line. Plots were then cut along the transect line with the number of plots determined by variability of the seagrass and slope of the meadow. Under these circumstances transects were made from shoreward margin of the meadow to the area where depth became constant. Two quadrats, 1 foot square in size were placed at diagonally opposite corners of a one metre square quadrat. All seagrass within each quadrat was carefully clipped approximately 1 cm above leaf base and place in plastic bags for late measurement. 12 old fronds with heavy epiphyte load were selected from seagrass collected with the one square foot quadrats. These fronds were put into a plastic bag with 4% formalin for preservation. The convex (+) and concave (-) sides were viewed under a low power dissecting microscope. Algal species were scored 'present' or 'absent' giving relative abundance of each species at each location.&rft.creator=Cambridge, Marion, Dr &rft.date=2007&rft.coverage=northlimit=-32.05; southlimit=-32.4; westlimit=115.6; eastLimit=115.75&rft.coverage=northlimit=-32.05; southlimit=-32.4; westlimit=115.6; eastLimit=115.75&rft_rights=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5&rft_subject=oceans&rft_subject=Biosphere | Vegetation | Macrophyte&rft_subject=Biosphere | Vegetation | Algae&rft_subject=Oceans | Marine Biology | Marine Plants&rft.type=dataset&rft.language=English Access the data

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Creative Commons Attribution 2.5 Australia License
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Brief description

The presence/absence of algal epiphytes on seagrass fronds in Cockburn Sound was recorded. Data includes the algal species, location, depth, quadrat, date.

Lineage

Plot sampling transects were set up at 15 locations around the Cockburn Sound (see thumbnail)

A metal picket was driven into the bottom to mark the beginning of the transect. The second picket was placed a distance of 140 feet perpendicular to the beach line. Plots were then cut along the transect line with the number of plots determined by variability of the seagrass and slope of the meadow.

Under these circumstances transects were made from shoreward margin of the meadow to the area where depth became constant. Two quadrats, 1 foot square in size were placed at diagonally opposite corners of a one metre square quadrat. All seagrass within each quadrat was carefully clipped approximately 1 cm above leaf base and place in plastic bags for late measurement.

12 old fronds with heavy epiphyte load were selected from seagrass collected with the one square foot quadrats. These fronds were put into a plastic bag with 4% formalin for preservation. The convex (+) and concave (-) sides were viewed under a low power dissecting microscope. Algal species were scored 'present' or 'absent' giving relative abundance of each species at each location.

Notes

Credit
Environmental Resources of Australia
Credit
Fremantle Port Authority
Purpose
To determine the abundance of algal epiphytes in seagrass beds in Cockburn Sound.

Issued: 04 07 2007

Data time period: 1970-12 to 1973-10

115.75,-32.05 115.75,-32.4 115.6,-32.4 115.6,-32.05 115.75,-32.05

115.675,-32.225

text: northlimit=-32.05; southlimit=-32.4; westlimit=115.6; eastLimit=115.75

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Identifiers
  • global : 2f6339a0-2a04-11dc-b961-00188b4c0af8