Data

Recovery of the encrusting bryozoan, Parasmittina delicatula, from damage at Queenscliff, Victoria.

Australian Ocean Data Network
Bone, Elisa
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/ce46f990-ddd6-11dc-a7ba-00188b4c0af8&rft.title=Recovery of the encrusting bryozoan, Parasmittina delicatula, from damage at Queenscliff, Victoria.&rft.identifier=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/ce46f990-ddd6-11dc-a7ba-00188b4c0af8&rft.description=Parasmittina delicatula colonies were located on the Queenscliff pier in early 1999 and assigned to a small size class (10-15mm) or large size class (30mm or more). Each colony was 'damaged' by scraping colony parts according to assigned treatment. The treatments were large control (>30mm diameter), large fragment with edge intact, large fragment with edge removed, central fragment and small control (see attached resource for more details). Colonies were photographed in situ with an underwater camera using slide film at intervals of 1, 2, 3, 4 and 8 months. A total of 47 established colonies were photographed over the 8 month period. In the laboratory, the slides were projected onto graph paper, and the outlines of the colonies traced. The images were then scanned and colony survival, mortality, size, growth and fragmentation were recorded using SigmaScan 2.0.Maintenance and Update Frequency: notPlannedStatement: The location of each colony was marked using tags fastened by nails to the pier pilings. COLONY SURVIVAL AND CAUSES OF MORTALITY: For all 47 individuals, the number of months they persisted on the pier pilings was noted. Mortality was defined as the complete removal of the colony from the substratum, the complete overgrowth of the colony, or the death of all component zooids. Survival was recorded as the proportion of colonies in each treatment surviving to a given number of months. SIZE, GROWTH AND FRAGMENTATION: Only the large colonies that survived a minimum of 3 months were considered. This resulted in a final total of 24 colonies with 5-7 replicates per treatment. Colony size (measured as a total live colony area), colony growth (measured as the change in total live colony area), colony growth relative to colony size, number of embryos, any incidence of partial or total overgrowth, fragmentation or fusion of colonies were recorded for each time period.&rft.creator=Bone, Elisa &rft.date=2008&rft.coverage=westlimit=144.3; southlimit=-38.3; eastlimit=145.2; northlimit=-37.8&rft.coverage=westlimit=144.3; southlimit=-38.3; eastlimit=145.2; northlimit=-37.8&rft.coverage=uplimit=4; downlimit=1&rft.coverage=uplimit=4; downlimit=1&rft_rights=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5/au/&rft_rights=The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).&rft_rights=Contact principal investigator for access to data&rft_rights=This metadata may be downloaded for the use in accordance with the Copyright Act 1968&rft_subject=biota&rft_subject=Biosphere | Zoology | Invertebrates&rft_subject=Oceans | Marine Biology | Marine Invertebrates&rft_subject=Biosphere | Ecological Dynamics | Life History&rft_subject=Biosphere | Ecological Dynamics | Competition&rft_subject=Biosphere | Ecological Dynamics | Survival&rft_subject=BENTHIC HABITAT&rft_subject=EARTH SCIENCE&rft_subject=BIOSPHERE&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=BUILDINGS&rft_subject=HUMAN DIMENSIONS&rft_subject=INFRASTRUCTURE&rft_subject=Parasmittina delicatula&rft_subject=20 431028&rft_subject=Queenscliff Pier&rft_subject=Port Phillip Bay&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 2.5 Australia License
http://creativecommons.org/licenses/by/2.5/au/

The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).

Contact principal investigator for access to data

This metadata may be downloaded for the use in accordance with the Copyright Act 1968

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Brief description

Parasmittina delicatula colonies were located on the Queenscliff pier in early 1999 and assigned to a small size class (10-15mm) or large size class (30mm or more). Each colony was 'damaged' by scraping colony parts according to assigned treatment. The treatments were large control (>30mm diameter), large fragment with edge intact, large fragment with edge removed, central fragment and small control (see attached resource for more details). Colonies were photographed in situ with an underwater camera using slide film at intervals of 1, 2, 3, 4 and 8 months. A total of 47 established colonies were photographed over the 8 month period. In the laboratory, the slides were projected onto graph paper, and the outlines of the colonies traced. The images were then scanned and colony survival, mortality, size, growth and fragmentation were recorded using SigmaScan 2.0.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: The location of each colony was marked using tags fastened by nails to the pier pilings. COLONY SURVIVAL AND CAUSES OF MORTALITY: For all 47 individuals, the number of months they persisted on the pier pilings was noted. Mortality was defined as the complete removal of the colony from the substratum, the complete overgrowth of the colony, or the death of all component zooids. Survival was recorded as the proportion of colonies in each treatment surviving to a given number of months. SIZE, GROWTH AND FRAGMENTATION: Only the large colonies that survived a minimum of 3 months were considered. This resulted in a final total of 24 colonies with 5-7 replicates per treatment. Colony size (measured as a total live colony area), colony growth (measured as the change in total live colony area), colony growth relative to colony size, number of embryos, any incidence of partial or total overgrowth, fragmentation or fusion of colonies were recorded for each time period.

Notes

Credit
Keough, M.J., Prof
Purpose
To (1) examine how the presence of absence of a growing edge affects fragment performance and (2) compare the performance of fragments with that of intact colonies of similar size.

Created: 18 02 2008

Data time period: 1999-01 to 1999-08

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145.2,-37.8 145.2,-38.3 144.3,-38.3 144.3,-37.8 145.2,-37.8

144.75,-38.05

text: westlimit=144.3; southlimit=-38.3; eastlimit=145.2; northlimit=-37.8

text: uplimit=4; downlimit=1

Subjects
20 431028 | AQUATIC ECOSYSTEMS | Benthic Habitat | BIOSPHERE | Buildings | Biosphere | Ecological Dynamics | Competition | Biosphere | Ecological Dynamics | Life History | Biosphere | Ecological Dynamics | Survival | Biosphere | Zoology | Invertebrates | EARTH SCIENCE | HUMAN DIMENSIONS | INFRASTRUCTURE | Oceans | Marine Biology | Marine Invertebrates | Parasmittina delicatula | Port Phillip Bay | Queenscliff Pier | biota |

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Other Information
Experimental Treatments (Bone_ExpTreatments.jpg)

uri : https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/ce46f990-ddd6-11dc-a7ba-00188b4c0af8/attachments/Bone_ExpTreatments.jpg

Identifiers
  • global : ce46f990-ddd6-11dc-a7ba-00188b4c0af8
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