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Research Article
 

Photosynthetic and Respiration Responses of Dugong Grass Thalassia hemprichii (Ehrenb) Aschers. at Teluk Kemang Seagrass Bed, Malaysia



M.K. Abu Hena, K. Misri , B. Japar Sidik , O. Hishamuddin and H. Hidir
 
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ABSTRACT

Photosynthetic and respiration responses were measured in situ at different depths and under a variety of light regime for seagrass Thalassia hemprichii from coastal area of Teluk Kemang, Port Dickson, Malaysia. The photosynthesis and respiration rate was measured from evolution of oxygen from the seagrass enclosed in glass cuvet. The photosynthetic rate at 0.5 m was higher (0.429 ± 0.086 mg O2/hr/g fr wt.) than at 2.0 m depth (0.289 ± 0.034 mg O2/hr/g fr wt.). Respiration rate was not significantly different at two depths. In laboratory study, the light saturation of T. hemprichii was reached at 400-800 μmol/m2/sec, whereas, the compensation point was around 20 μmol/m2/s. The photosynthesis was relatively constant at light intensity up to 1600 μmol/m2/s. Comparing these results to in situ light measurement from the seagrass bed (1095.430±5.803 μmol/m2/s at surface water and 115.00±1.512 μmol/m2/s. at 2.0 m depth), this species depth distribution should not be light limited to a depth of about 2.0 m i.e. T. hemprichii could penetrate a depth of more than 2.0 m in this study area. However, the present field observation indicated that this species could only be found at intertidal area (1.5 - 2.0 m High Water Level) and assumed that other environmental factors i.e. current movement, water visibility and sediment status may affects the depth distribution of this seagrass in this costal water.

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  How to cite this article:

M.K. Abu Hena, K. Misri , B. Japar Sidik , O. Hishamuddin and H. Hidir , 2001. Photosynthetic and Respiration Responses of Dugong Grass Thalassia hemprichii (Ehrenb) Aschers. at Teluk Kemang Seagrass Bed, Malaysia. Pakistan Journal of Biological Sciences, 4: 1487-1489.

DOI: 10.3923/pjbs.2001.1487.1489

URL: https://scialert.net/abstract/?doi=pjbs.2001.1487.1489

REFERENCES
1:  Abu-Hena, M.K., K. Misri, B.J. Sidik, O. Hishamuddin and H. Hidir, 2001. Photosynthesis of seagrass Cymodocea serrulata (Magnoliophyta/ Potamogetonales/Cymodoceaceae) in field and laboratory. Indian J. Mar. Sci., 30: 253-256.
Direct Link  |  

2:  Arnon, D.I., 1949. Copper enzymes in isolated chloroplasts. Polyphenoloxidase in Beta vulgaris. Plant Physiol., 24: 1-15.
CrossRef  |  PubMed  |  Direct Link  |  

3:  Beer, S. and Y. Waisel, 1982. Effects of light and pressure on photosynthesis in two seagrasses. Aquat. Bot., 13: 331-337.
Direct Link  |  

4:  Bell, J.D. and D.A. Pollard, 1989. Ecology of Fish Assemblages and Fisheries Associated with Seagrasses. In: A Treatise on Seagrasses with Special Reference to the Australian Region, Larkum, A.W.D., A.J. McComb, S.A. Shepherd (Eds.). Elsevier Scientific Publishers, Amsterdam, The Netherlands, pp: 565-609.

5:  Buesa, R.J., 1974. Population and biology data on turtle grass (Thalassia testudinum, 1805) on the North Western Cuban shelf. Aquaculture, 4: 207-226.

6:  Bulthuis, D.A., 1987. Effects of temperature on photosynthesis and growth of seagrass. Aquat. Bot., 27: 27-40.
Direct Link  |  

7:  Cambridge, M.L. and A.J. McComb, 1984. The loss of seagrass in cockburn sound, Western Australia. I. The time course and magnitude of seagrass decline in relation to industrial development. Aquat. Bot., 20: 229-243.
Direct Link  |  

8:  Clark, G.L., 1967. Elements of Ecology. Jon Wiley Sons, New York, pp: 560.

9:  Dennison, W.C. and R.S. Alberte, 1985. Role of daily light period in the depth distribution of Zostera marina (eelgrass). Mar. Ecol. Prog. Ser., 25: 51-61.
Direct Link  |  

10:  Dennison, W.C., 1987. Effects of light on seagrass photosynthesis, growth and depth distribution. Aquat. Bot., 27: 15-26.
Direct Link  |  

11:  Duarte, C.M., 1991. Allometric scaling of seagrass form and productivity. Mar. Ecol. Prog. Ser., 77: 289-300.

12:  Fonseca, M.S. and J.S. Fisher, 1986. A comparison of canopy friction and sediment movement between four species of seagrass with reference to their ecology and restoration. Mar. Ecol. Prog. Ser., 29: 15-22.
Direct Link  |  

13:  Fonseca, M.S. and W.J. Kenworthy, 1987. Effects of current on photosynthesis and distribution of seagrass. Aquat. Bot., 27: 59-78.
Direct Link  |  

14:  Kenworthy, W.J. and M.S. Fonseca, 1992. The use of fertilizer to enhance growth of transplanted seagrasses Zostera marina L. and Halodule wrightii Aschers. J. Exp. Mar. Biol. Ecol., 163: 141-161.
Direct Link  |  

15:  Lee C.N., 1999. Seagrass and macroalgal communities in the intertidal and subtidal waters of Teluk Kemang. B.Sc. Thesis, Department of Biology, University Putra Malaysia.

16:  Murray, L., W.C. Dennison and W.M. Kemp, 1992. Nitrogen versus phosphorus limitation for growth of an estuarine population of eelgass (Zostera marina L.). Aquat. Bot., 44: 83-100.

17:  Perez, M. and J. Romero, 1992. Photosynthesis response to light and temperature of the seagrass Cymodocea nodosa and the prediction of its seasonality. Aquat. Bot., 43: 51-62.

18:  Perez, M., C.M. Duarte, J. Romero, K. Sand-Jensen and T. Alcoverro, 1994. Growth plasticity in Cymodocea nodosa stands: The importance of nutrient supply. Aquat. Bot., 47: 249-264.
Direct Link  |  

19:  Pollard, D.A., 1984. A review of ecological studies on seagrass-fish communities, with particular reference to recent studies in Australia. Aquat. Bot., 18: 3-42.
Direct Link  |  

20:  Pollard, P.C. and M. Greenway, 1993. Photosynthesis characteristic of seagrass (Cymodocea serrulata and Thalassia hemprichii and Zostera capricorni) in a low light environment, with a comparison of leaf marking and lacunal gas measurements of productivity. Aust. J. Mar. Freshwater Res., 44: 127-139.
Direct Link  |  

21:  Shepherd, S.A., A.J. McComb, D.A. Bulthuis, V. Neverauskas, D.A. Steffensen and R. West, 1989. Biology of Seagrass: A Treatise on Seagrasses with Special Reference to the Australian Region, In: The Western Australian Seagrass, Larkum, A.W.D., A. J. McComb and S.A. Shepherd (Eds.). Elsevier Scientific Publishers, Amsterdam, The Netherlands pp: 346-394.

22:  Silberstein, K., A.W. Chiffings and A.J. McComb, 1986. The loss of seagrass in Cockburn Sound, Western Australia. III. The effects of epiphytes on productivity of Posidonia auatralis Hook. Aquat. Bot., 24: 355-371.

23:  Wahbeh, M.I., 1983. Productivity and respiration of three seagrass species from the Gulf of Aqaba (Jordan) and some related factors. Aquat. Bot., 15: 367-374.

24:  Walker, D., 1988. The use of the Oxygen Electrode and Fluorescence Probes in Simple Measurements of Photosynthesis. Oxygraphics Ltd., UK., pp: 203.

25:  Walker, D.I. and A.J. McComb, 1990. Salinity response of seagrass Amphibolis antarctica (Labill.) sonder ex aschers: An experiment validation of field results. Aquat. Bot., 36: 359-366.

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