Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2004.1801.1807Thalassia
hemprichii (Ehrenberg) Ascherson in Port Dickson, Malaysia]]>HenaM. K. AbuMisriK. SidikB. JaparHishamuddinO. HidirH. 102004710Seagrass is a valuable component contributing significantly to coastal productivity
and stabilising sea floor sediments in the shallow coastal marine ecosystems.
The present field case study was conducted in a monospecific patch in an intertidal
seagrass bed in Port Dickson, Malaysia. Shoot density and biomass of Thalassia
hemprichii were measured using 20×20 cm quadrats. Leaf growth and productivity
of T. hemprichii were studied using leaf-marking method. During low tide
period the habitat of this species was observed by snorkeling. The mean shoot
density of T. hemprichii was 632.14×113.77 shoots/m2, with mean
above ground biomass measured at 13.87×1.17 g AFDW (ash free dry weight)/m2
and mean below ground biomass 40.19±7.93 g AFDW/m2. The mean leaf growth
was 7.04×1.35 mm/shoot, where maximum leaf growth was recorded 11.45 mm/shoot.
The mean leaf production was 0.56×0.17 g AFDW/m2/day, where the maximum
leaf production was measured at 1.00 g AFDW/m2/day. Turnover rate and
relative production rate (RPR) were measured at 3.68×0.79 percent/day and 0.07×0.03
g/g AFDW/day, respectively. Plastochrone interval of T. hemprichii leaf
(PIL) during the study period was 12.03×1.01 days. Leaves of T.
hemprichii beneath the shading of macro-algae (Sargassum sp.) were
comparatively longer than those existing without such shading condition. There
are 8-19 horizontal rhizome nodes within two shoots and this indication that two
shoots of T. hemprichii were separated at this distance.]]>McRoy, C.P. and C. Helfferich,1977pp: 314pp: 314Den Harto, C.,1970pp: 268pp: 268Thayer, G.W., D.W. Engel and M.W. La Croix,1977Zostera marina L.]]>30109127Zieman, J.C. and R.G. Wetzel,19801980pp: 87-116pp: 87-116Nybakken, J.W.,19974th Edn.,pp: 481pp: 481Muta-Hara, Z.,2001Halophila beccarii Aschers in Peninsular Malaysia.]]>2001Abu-Hena, M.K., K. Misri, B.S. Japar, O. Hishamuddin and H. Hidir,2001Cymodocea serrulata (Magnoliophyta/Potamogetonales/Cymodoceaceae) in field and laboratory.]]>30253256Abu-Hena, M.K., K. Misri, B.S. Japar, O. Hishamuddin and H. Hidir,2001Thalassia hemrichii (Ehrenb) Aschers. At Teluk kemang seagrass bed, Malaysia.]]>414871489Japar, S.B., Z.M. Harah, Z. Kanamoto and A.M. Pauzi,20012001pp: 81-98pp: 81-98Muta-Hara, Z., B.S. Japar and O. Hishamuddin,1999Halophila beccarii Aschers. (Hydrocharitaceae) from Malaysia.]]>65199207Zieman, J.C.,1974Thalassia testudinum<./i> Konig,]]>4139143Kirkman, H. and D.D. Reid,1979Posidonia australis in the carbon budget of an estuary.]]>7173183Erftemeijer, P.L.A., R. Osinga and A.E. Mars,1993466790Jacobs, R.P.W.M.,1979Zostera marina, at Roscoff, France.]]>7151172Walker, D.I., G.A. Kundrick and A.J. McComb,198830305317Nienhuis, P.H., J. Coosen and W. Kiswara,198923197214Jacobs, R.P.W.M.,1984Zostera marina L.).]]>24880Backman, T.W. and D.C. Barilotti,1976Zostera marina in a coastal lagoon.]]>343340Giraud, G.,1977Posidonia oceanica (Linne) Delile.]]>20487491Fortes, M.D.,1990pp: 46pp: 46Lewis, J. B.,197752305347Abu-Hena, M.K.,2000Cymodocea serrulata (R. Br.) Aschers ET Magnus and Thalasia hemprichii (Ehrenb.) aschers in Port Dicksion, Negeri Sembilan, Malaysia.]]>2000Norhadi, I.,199316111118Brouns, J.J.W.M.,1985Thalassia hemprichii (Ehreub.) Ashers.]]>23149175Zieman, J.C.,1972Thalassia (Spermatophyta: Hydrocharitaceae) in South Biscayne Bay, Florida Bay, Florida and their relationship to mangrove hammocks.]]>22559574Zieman, J.C.,1986pp: 53-76pp: 53-76Romero, J., M. Perez, M.A. Mateo and E. Sala,1994Posidonia oceanica as biogeochemical sink.]]>471319Azkab, M.H.,1992Thalassia hemprichii (Ehrenb.) Aschers in three Islands of Seribu Islands subjected to different human activities.]]>1992pp: 267271Sudara, S., S. Nateekarnjanalarp and S. Plathong,1992Halodule pinifolia and Enhalus acoroides in different types substrata.]]>1992pp: 261266Ogden, J.C. and N.B. Ogden,198212229244Dennison, W.C. and R.S. Alberte,1982Zostera marina L. (eelgrass) to in situ manipulations of light intensity.]]>55137140Perez, M., C.M. Duarte, J. Romero, K. Sand-Jensen and T. Alcoverro,1994Cymodocea nodosa stands: The importance of nutrient supply.]]>47249264Perez, M. and J. Romero,1992Cymodocea nodosa and the prediction of its seasonality.]]>435162Murray, L., W.C. Dennison and W.M. Kemp,1992Zostera marina L.).]]>4483100Kenworthy, W.J. and M.S. Fonseca,1992Zostera marina L. and Halodule wrightii Aschers.]]>163141161Duarte, C.M.,199177289300Zieman, J.C., J.W. Fourqurean and R.C. Iverson,198944292311Buesa, R.J.,1974Thalassia testudinum, 1805) on the North Western Cuban shelf.]]>4207226Tiquio, J.P. and M.D. Fortes,19941994pp: 317321Marba, N., J. Cebrian, S. Enriquez and C.M. Duarte,1996133203215Brouns, J.J.W.M.,1987293337Brouns, J.J.W.M.,1985Thalassodendron ciliatum (Forssk) Den Hartog from Eastern Indonesia. Biological result of the Sinellius II expedition.]]>23249260Brouns, J.J.W.M.,198727333362Erftemeijer, P.L.A.,199454409419Azkab, M.H.,19891989pp: 353362Kiswara, W.,19921992pp: 241250Fortes, M.D.,19931993pp: 131-151pp: 131-151Dennison, W.C.,19901990pp: 77-80pp: 77-80