General
Seagrasses occur in coastal marine and estuarine habitats, generally
in near shore, soft substrates. There are five common genera of
seagrasses found along the temperate Australian coastline (Posidonia,
Heterozostera, Zostera, Amphibolis and Halophila), with the greatest
diversity found in Western Australia. Ecological significances of
seagrasses include to their ability to trap and stabilise sediments;
provide nursery areas for juvenile fish; encourage larvae settlement;
provide protection from predation; assist in nutrient cycling; and
transfer energy into the food web.
Direct human impacts such as mechanical damage, eutrophication,
aquaculture, siltation, coastal constructions, and alteration of
food webs; along with indirect human impacts including impacts of
climate change have contributed to a widespread loss of seagrass.
Natural disturbances such as storm events, extreme wave-action,
predation and disease also contribute to loss.
Protocol
The Global Ocean Observing System
http://ioc.unesco.org/goos/
http://www.bom.gov.au/inside/eiab/gcosgoos/
Guidelines for the Conservation and Restoration of Seagrasses in
the United States and Adjacent Waters.
http://shrimp.bea.nmfs.gov/library/digital.html
Hyperspectral Remote Sensing of Seagrasses.
http://www.uow.edu.au/science/geosciences/pgrad/sfyfe.htm
Costs
No standard costs available
Case studies
Seagrass-Watch: community-based seagrass monitoring program
http://www.reef.crc.org.au/aboutreef/coastal/seagrasswatch.html
http://www.reef.crc.org.au/publications/explore/feat38.html
CSIRO Environmental Remote Sensing: use and interpretation of remotely
sensed data for environmental applications and natural resource
mapping
http://www.clw.csiro.au/research/landscapes/remote/index.html
M. Thomas, P. Lavery and R. Coles. Monitoring and assessment of
seagrass
www.publish.csiro.au/seagrass/pdffiles/04seagrass.pdf
A. Butler and P. Jernakoff. Seagrass in Australia: Strategic review
and development of an R&D plan
www.publish.csiro.au/seagrass/pdffiles/00seagrass.pdf
EHMP Moreton Bay bi-annual seagrass depth range
http://www.coastal.crc.org.au/ehmp/marine_monitoring_overview.html
Seagrass Monitoring in Florida Keys National Marine Sanctuary
http://serc.fiu.edu/seagrass/ExecutiveSummary03.htm
Dixon, R. (2003). Seagrass monitoring project and guide for NSW,
New South Wales Regional Ripples 9 (3) pp 6.
Generic databases
Links to seagrass web pages
http://www.botany.hawaii.edu/seagrass/
Links to seagrass web pages
http://www.ncl.ac.uk/tcmweb/tcm/sglinks.htm#top
Articles published before 1980 (online links are not yet available)
http://www.botany.hawaii.edu/seagrass/bib.htm
People Contacts
Peter Ralph
University of Technology, Sydney
Email: p.ralph@uts.edu.au
Roberta Dixon
Seagrass Coordinator
Central Coast Community Environment Network
Ph: 02 43494754
Email: seagrass@cccen.terrigal.net.au
Suzanne Fyfe
School of Geosciences
University of Wollongong
Ph: 02 4221 4688
Fax: 02 4221 4250
Email: skf01@uow.edu.au
Dr Eric Paling
Marine Science – Seagrass
Murdoch University
Ph: (08) 9360 6121
Email: epaling@central.murdoch.edu.au
Organisation Contacts
Australian Marine Sciences Association
PO Box 902
Toowong Qld 4066
Australia
Email: amsa@amsa.asn.au
Web: http://www.amsa.asn.au/
Australian Museum Business Services
AMBS Consulting
Ph: 02 9320 6311
Fax: 02 9380 6964
Email: ambs@austmus.gov.au
Web: www.ambs.com.au
Centre for Research on Ecological Impacts of Coastal Cities
http://www.eicc.bio.usyd.edu.au/eicc.html
CSIRO Marine Laboratories
GPO Box 1538
Hobart, Tasmania 7001
Australia
Web: http://www.ml.csiro.au/
The Cooperative Research Centre for the Great Barrier Reef World
Heritage Area
CRC Reef Research Centre LTD
Ph: 07 47298400
Fax: 07 47298499
Email: info@crcreef.com
Web: www.reef.crc.org.au
FRC Environmental
Ecologists and Environmental Scientists
Ph: 07 32075035
Fax: 07 32075640
Email: info@frc-environmental.com.au
Advanced References
Duarte, C. (2002). The future of seagrass meadows, Environmental
Conservation 29 (2) pp 192-206.
Duarte, C.M. and Chiscana, C.L. (1999). Seagrass biomass and production:
a reassessment, Aquatic Botany 65 (1-4) pp 159-174.
Duarte, C.M., Marba, N., Agawina, N.S.R, Cebrian, J., Enriquez,
S., Fortes, M.D., Gallegos, M.E., Merino, M., Oleson, B., Sand-Jensen,
K., Uri, J. and Vermaat, J. (1994). Reconstruction of seagrass dynamics:
age determinations and associated tools for the seagrass ecologist,
Marine Ecology Process Series 107 pp 195-209.
Heidelbaugh, W.S. and Nelson, W.G. (1996). A power analysis of
methods for assessment of change in seagrass cover, Aquatic Botany
53 (3-4) pp 227-233.
Jernakoff, P. and Nielsen, J. (1998). Plant-animal associations
in two species of seagrasses in Western Australia, Aquatic Botany
60 (4) pp 359-376.
Kendrick,G.A., Aylward, M.J., Hegge, B.J., Cambridge, M.L., Hilman,
K., Wyllie, A. and Lord, D.A. (2002). Changes in seagrass coverage
in Cockburn Sound, Western Australia between 1967 and 1999, Aquatic
Botany 73 (1) pp 75-87.
Kendrick, G.A., Eckersley, D.I. and Walker, D.I. (1999). Landscape-scale
changes in seagrass distribution over time: a case study from Success
Bank, Western Australia, Aquatic Botany 65 (1-4) pp 293-309.
Kirkman, H. and Kirkman, J. (2000). Long-term seagrass meadow monitoring
near Perth, Western Australia, Aquatic Botany 67 (4) pp 319-332.
Kirkman, H. and Kirkman, J.A. (2000). The management of seagrasses
in South East Asia and Australia, Biologia Marina Mediterranea 7
pp 305-319.
Lathrop, R.G., Styles, R.M., Seitzinger, S.P. and Bognar, J.A.
(2001). Use of GIS Mapping and Modeling Approaches to Examine the
Spatial Distribution of Seagrasses in Barnegat Bay, New Jersey,
Estuaries 24 (6A) pp 940-916.
Moreno, D., Aguilera, P.A. and Castro, H. (2001). Assessment of
the conservation status of seagrass (Posidonia oceanica) meadows:
implications for monitoring strategy and the decision making process,
Biological Conservation 102 (3) pp 325-332. |