Iranian Journal of Fisheries Sciences
مجله علوم شیلاتی ایران
IJFS
Agriculture
http://jifro.ir
1
admin
1562-2916
10.18869/acadpub.ijfs
en
jalali
1393
10
1
gregorian
2015
1
1
14
1
online
1
fulltext
en
Macro and micro nutrients of tropical seagrasses, Halophila ovalis, H. spinulosa and Halodule uninervis in Johore, Malaysia
Biotechnology
Biotechnology
پژوهشي
Orginal research papers
The present study determined and compared contents of macro- (Nitrogen-N, Phosphorus-P, Potassium-K, Calcium-Ca, Magnesium-Mg) and micro- (Zinc-Zn, Iron-Fe, Manganese-Mn, Cupper-Cu) nutrients in four seagrass species big-leaved (BL) Halophila ovalis (R. Br.) Hook. f., small-leaved (SL) H. ovalis (R. Br.) Ascherson, H. spinulosa (R. Br.) Aschers. in Neumayer and Halodule uninervis (Forssk.) Aschers from three locations Merambong shoal, Seluyong shoal-1 and Seluyong shoal-2, Johore, Malaysia on March 2013. Dried seagrass samples were subjected to wet digestion method and concentration determined using a Perkin Elmer 5100 PC atomic absorption spectrophotometer. Macro and micro-nutrients varied with species and locations. Observed macro-nutrient contents were high for N (17320 mg kg-1) in big-leaved (BL) H. ovalis from Seluyong shoal-2, P (2921.33 mg kg-1) in big-leaved (BL) H. ovalis from Seluyong shoal-1, and for K (10942.67 mg kg-1) in H. uninervis from Merambong shoal and for Ca (10576 mg kg-1) in small-leaved (SL) H. ovalis from Merambong shoal. Mg (3534.67 mg kg-1) was comparatively higher in H. spinulosa from Merambong shoal. Micro-nutrients such as Zn ranged from 138.67 mg kg-1 to 212 mg kg-1 and Cu from 13.33 mg kg-1 to17.33 mg kg-1 with no discernible differences between species. Fe concentration was consistently higher in all species. Hierarchically macro and micro-nutrients contents did not show a consistent ordered pattern according to species and location. Based on biplots generated by Principle component analysis (PCA), there were clear separation of seagrass species based on the micro- and macro-nutrient contents with locations from Malaysia and other regions.
Halodule sp., Halophila sp., Macro-nutrient, Micro-nutrient, PCA, Malaysia
246
261
http://jifro.ir/browse.php?a_code=A-10-1272-147&slc_lang=en&sid=1
W.N
Wan Hazma
100319475328460012862
100319475328460012862
No
Z
Muta Harah
muta@upm.edu.my
100319475328460012863
100319475328460012863
Yes
B
Japar Sidik
100319475328460012864
100319475328460012864
No
F.M.I
Natrah
100319475328460012865
100319475328460012865
No