Data

Draft - WAMSI 2 - Dredging Node - 5 - Defining thresholds and indicators of primary-producer response to dredging-related pressures

Australian Ocean Data Network
Lavery, Paul, Dr (Principal investigator, Point of contact) Kendrick, Gary, Dr (collaborator) McMahon, Kathryn, Dr (collaborator) Statton, John, Dr (collaborator) Vanderklift, Mat, Dr (collaborator)
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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/dcc2dd3f-8e75-4c9b-b812-65bb5dce30db&rft.title=Draft - WAMSI 2 - Dredging Node - 5 - Defining thresholds and indicators of primary-producer response to dredging-related pressures&rft.identifier=dcc2dd3f-8e75-4c9b-b812-65bb5dce30db&rft.publisher=Australian Ocean Data Network&rft.description=This project will improve our understanding of how seagrasses are affected by dredging activities, and will apply that understanding to better prediction of impacts and management of dredging. A combination of laboratory and field experiments and field surveys will determine the levels of dredging-related pressures (or 'thresholds') that produce the earliest observable effects, sub-lethal effects and lethal effects on two species of seagrasses considered most ecologically important in the NW. The research will also determine the capacity of those seagrasses to recover from dredgingwrelated stress. The research will focus on two of the most significant stresses produced by dredging: - the reduction in light availability to plants; and - the smothering of seagrass and algae as suspended sediments settle. Objectives: *Project 5.1* - Reviews of existing information and identification of key species: Review 1: Review the current state of knowledge regarding the effects of dredging-related 'pressure' on primary producers (seagrasses) Review 2: Identify which primary producers (e.g. ephemerals/annuals/perennials) or different functional groups, that collectively cover the bio-geographic range of key primary producers in WA, are most appropriate for the focus of subsequent research into thresholds and indicators of response to dredging related pressures; *Project 5.2* - Natural processes in Seagrass ecosystems Field Study 1: to characterize the genetic variability within populations of seagrasses to understand whether typical patches of meadow are genetically uniform or have multiple clones Field Study 2: to determine whether recovery following disturbance is by sexual or asexual means and the relative importance of each *Project 5.3 - (1) determining the pressure:response relationships that relate the effects of dredging-generated sediments on tropical primary producers, (2) examine the pathways, rates and timeframes of recovery from impacts and; (3) identify and examine the effects of key environmental variables on the pressure:response relationships and recovery.&rft.creator=Lavery, Paul, Dr&rft.date=2017&rft.coverage=westlimit=115; southlimit=-21; eastlimit=126; northlimit=-11&rft.coverage=westlimit=115; southlimit=-21; eastlimit=126; northlimit=-11&rft_rights=*All users must acknowledge the source of the material with the acknowledgment*: Data sourced from Western Australian Marine Science Institution (WAMSI) project funded by Western Australian State Government and research partners and carried out by <insert authors> from <insert organisations>&rft_rights=*Suggested attribution for use in citation*: [author(s)], Western Australian Marine Science Institution (WAMSI), [author organisation(s)], [year-of-data-download], [title], [data-access-URL], data accessed (YYYY-MM-DD).&rft_rights=*Disclaimer*: WAMSI and its Partners data, products and services are provided as is and WAMSI and its Partners do not warrant their fitness for a particular purpose. WAMSI and its Partners have made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. WAMSI and its Partners make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, WAMSI and its Partners exclude all liability to any person arising directly or indirectly from the use of the data, products and services.&rft_rights= http://creativecommons.org/licenses/by-nc-sa/2.5/au/&rft_rights=http://i.creativecommons.org/l/by-nc-sa/2.5/au/88x31.png&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Graphic&rft_rights=Creative Commons Attribution-Noncommercial-Share Alike 2.5 Australia License&rft_rights=http://creativecommons.org/international/au/&rft_rights=WWW:LINK-1.0-http--related&rft_rights=WWW:LINK-1.0-http--related&rft_rights=License Text&rft_rights=Creative Commons Attribution-Noncommercial-Share Alike 2.5 Australia License&rft_rights= http://creativecommons.org/licenses/by-nc-sa/2.5/au/&rft_subject=biota&rft_subject=environment&rft_subject=oceans&rft_subject=SEDIMENT TRANSPORT&rft_subject=EARTH SCIENCE&rft_subject=OCEANS&rft_subject=COASTAL PROCESSES&rft_subject=BENTHIC HABITAT&rft_subject=BIOSPHERE&rft_subject=AQUATIC ECOSYSTEMS&rft_subject=Oceans | Marine Biology | Marine Plants&rft_subject=TURBIDITY&rft_subject=MARINE SEDIMENTS&rft_subject=LIGHT TRANSMISSION&rft_subject=TERRESTRIAL HYDROSPHERE&rft_subject=WATER QUALITY/WATER CHEMISTRY&rft_subject=TBC&rft.type=dataset&rft.language=English Access the data
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*All users must acknowledge the source of the material with the acknowledgment*: "Data sourced from Western Australian Marine Science Institution (WAMSI) project funded by Western Australian State Government and research partners and carried out by from "

*Suggested attribution for use in citation*:
"[author(s)], Western Australian Marine Science Institution (WAMSI), [author organisation(s)], [year-of-data-download], [title], [data-access-URL], data accessed (YYYY-MM-DD)".

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WAMSI and its Partners data, products and services are provided "as is" and WAMSI and its Partners do not warrant their fitness for a particular purpose. WAMSI and its Partners have made every reasonable effort to ensure high quality of the data, products and services, to the extent permitted by law the data, products and services are provided without any warranties of any kind, either expressed or implied, including without limitation any implied warranties of title, merchantability, and fitness for a particular purpose or non-infringement. WAMSI and its Partners make no representation or warranty that the data, products and services are accurate, complete, reliable or current. To the extent permitted by law, WAMSI and its Partners exclude all liability to any person arising directly or indirectly from the use of the data, products and services.

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Brief description

This project will improve our understanding of how seagrasses are affected by dredging activities, and will apply that understanding to better prediction of impacts and management of dredging. A combination of laboratory and field experiments and field surveys will determine the levels of dredging-related pressures (or 'thresholds') that produce the earliest observable effects, sub-lethal effects and lethal effects on two species of seagrasses considered most ecologically important in the NW. The research will also determine the capacity of those seagrasses to recover from dredgingwrelated stress. The research will focus on two of the most significant stresses produced by dredging:
- the reduction in light availability to plants; and
- the smothering of seagrass and algae as suspended sediments settle.

Objectives:
*Project 5.1* - Reviews of existing information and identification of key species:

Review 1: Review the current state of knowledge regarding the effects of dredging-related 'pressure' on primary producers (seagrasses)

Review 2: Identify which primary producers (e.g. ephemerals/annuals/perennials) or different functional groups, that collectively cover the bio-geographic range of key primary producers in WA, are most appropriate for the focus of subsequent research into thresholds and indicators of response to dredging related pressures;

*Project 5.2* - Natural processes in Seagrass ecosystems

Field Study 1: to characterize the genetic variability within populations of seagrasses to understand whether typical patches of meadow are genetically uniform or have multiple clones

Field Study 2: to determine whether recovery following disturbance is by sexual or asexual means and the relative importance of each

*Project 5.3 -
(1) determining the pressure:response relationships that relate the effects of dredging-generated sediments on tropical primary producers,
(2) examine the pathways, rates and timeframes of recovery from impacts and;
(3) identify and examine the effects of key environmental variables on the pressure:response relationships and recovery.

Created: 14 06 2013

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126,-11 126,-21 115,-21 115,-11 126,-11

120.5,-16

text: westlimit=115; southlimit=-21; eastlimit=126; northlimit=-11

Subjects
AQUATIC ECOSYSTEMS | Benthic Habitat | BIOSPHERE | COASTAL PROCESSES | EARTH SCIENCE | Light Transmission | MARINE SEDIMENTS | OCEANS | Oceans | Marine Biology | Marine Plants | Sediment Transport | TBC | TERRESTRIAL HYDROSPHERE | Turbidity | WATER QUALITY/WATER CHEMISTRY | biota | environment | oceans |

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