Data

Effects of introduced species on the recruitment of sessile invertebrates.

Australian Ocean Data Network
Barr, Lissa
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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/dab59250-bfe9-11dc-8c42-00188b4c0af8&rft.title=Effects of introduced species on the recruitment of sessile invertebrates.&rft.identifier=https://catalogue.aodn.org.au:443/geonetwork/srv/api/records/dab59250-bfe9-11dc-8c42-00188b4c0af8&rft.description=This experiment was conducted to determine if an established Botryllus schlosseri colony affected the recruitment of sessile invertebrates. Small perspex plates that had been in the field for 8 weeks and then in a laboratory water table were used to test this hypothesis. Treatment plates were scraped of all organisms expect for the B. schlosseri colonies. Control and 'mimic' plates were scraped of all organisms. Mimic B. schlosseri were made from silicone and used to determine if the effects were due to the physical structure of the organism or biological attributes (e.g. post-settlement overgrowth or chemical defence mechanisms). Plates were suspended from Workshops Jetty, Williamstown for 10 days (2nd March to 12th March 2004) before being collected. At the conclusion of the experiment all species found on the plates were counted and identified.Maintenance and Update Frequency: notPlannedStatement: Silicone sealant was used on assigned mimic treatment plates to mimic the physical presence of Botryllus. Silicone was spread onto a random position of the plate and modelled to a similar height and width as the Botryllus colonies. All replicate colonies (real and mimic) were reduced to cover an average area of 10-12 cm2 (8-10% of the plate).&rft.creator=Barr, Lissa &rft.date=2004&rft.coverage=westlimit=144.909; southlimit=-37.861; eastlimit=144.909; northlimit=-37.861&rft.coverage=westlimit=144.909; southlimit=-37.861; eastlimit=144.909; northlimit=-37.861&rft.coverage=uplimit=3; downlimit=2&rft.coverage=uplimit=3; downlimit=2&rft_rights=Contact author oo point of contact for access to data.&rft_rights=This metadata may be downloaded for use in accordance with the Copyright Act 1968&rft_subject=biota&rft_subject=ENVIRONMENTAL IMPACTS&rft_subject=EARTH SCIENCE&rft_subject=HUMAN DIMENSIONS&rft_subject=COMMUNITY STRUCTURE&rft_subject=BIOSPHERE&rft_subject=ECOLOGICAL DYNAMICS&rft_subject=COMMUNITY DYNAMICS&rft_subject=SPECIES RECRUITMENT&rft_subject=Oceans | Marine Biology | Marine Invertebrates&rft_subject=Biosphere | Zoology | Invertebrates&rft_subject=BENTHIC HABITAT&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=Workshops Jetty&rft_subject=Williamstown&rft_subject=Port Phillip Bay&rft_subject=Botryllus schlosseri&rft_subject=35 033006&rft_subject=Bugula neritina&rft_subject=20 331013&rft_subject=Bugula dentata&rft_subject=20 331002&rft.type=dataset&rft.language=English Access the data
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Brief description

This experiment was conducted to determine if an established Botryllus schlosseri colony affected the recruitment of sessile invertebrates. Small perspex plates that had been in the field for 8 weeks and then in a laboratory water table were used to test this hypothesis. Treatment plates were scraped of all organisms expect for the B. schlosseri colonies. Control and 'mimic' plates were scraped of all organisms. Mimic B. schlosseri were made from silicone and used to determine if the effects were due to the physical structure of the organism or biological attributes (e.g. post-settlement overgrowth or chemical defence mechanisms). Plates were suspended from Workshops Jetty, Williamstown for 10 days (2nd March to 12th March 2004) before being collected. At the conclusion of the experiment all species found on the plates were counted and identified.

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Maintenance and Update Frequency: notPlanned
Statement: Silicone sealant was used on assigned mimic treatment plates to mimic the physical presence of Botryllus. Silicone was spread onto a random position of the plate and modelled to a similar height and width as the Botryllus colonies. All replicate colonies (real and mimic) were reduced to cover an average area of 10-12 cm2 (8-10% of the plate).

Notes

Credit
This thesis was carried out under the supervision of Dr Nathan Knott and Prof Mick Keough.

Issued: 30 04 2004

Data time period: 2004-03-02 to 2004-03-12

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144.909,-37.861

144.909,-37.861

text: westlimit=144.909; southlimit=-37.861; eastlimit=144.909; northlimit=-37.861

text: uplimit=3; downlimit=2

Subjects
20 331002 | 20 331013 | 35 033006 | AQUATIC ECOSYSTEMS | Benthic Habitat | BIOSPHERE | Biosphere | Zoology | Invertebrates | Botryllus schlosseri | Bugula dentata | Bugula neritina | COMMUNITY DYNAMICS | Community Structure | EARTH SCIENCE | ECOLOGICAL DYNAMICS | Environmental Impacts | HUMAN DIMENSIONS | Oceans | Marine Biology | Marine Invertebrates | Port Phillip Bay | Species Recruitment | Williamstown | Workshops Jetty | biota |

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global : 2122e200-bf2d-11dc-8728-00188b4c0af8

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  • global : dab59250-bfe9-11dc-8c42-00188b4c0af8
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