merged

Effects Different Salinity Level on Elemental Composition of Juvenile Nile
Tilapia, Oreochromis Niloticus
Siti Noor Marisha Binti Mohd Shariff
Supervisor: Dr Roslizawati Binti Ab Lah
Bachelor of Science in Agrotechnology (Aquaculture)
School of Fisheries and Science Aquaculture
The effects of different salinity level on elemental composition of juvenile Nile tilapia,
Oreochromis niloticus were studied using the Inductively Coupled Plasma Mass
Spectrometry. A total of 99 samples were collected from the local supplier in December
2017. All samples was acclimatized in a controlled flow tank for two week. All fishes
subjected to three different levels of salinities 0ppt, 5ppt, and 15ppt for duration of 7
days. Thirteen types of elemental composition sodium, copper, lead, nickel, zinc,
chromium, manganese, iron, cadmium, cobalt, mercury, sodium, magnesium and
calcium were determined in the edible muscle of Nile tilapia. The result indicate that,
salinity does not affected the level of elemental composition in the edible muscle of
tilapia (P=0.98). However, certain levels of elements were considerably increases at
the elevated salinities; Pb, Mn, Cr, Cd, Ni, Na, and Ca. Nevertheless, all the element
were not exceeded the permissible levels provided by World Human Organization
(WHO) and daily intake based on Malaysia Food Act (MFA). Therefore Nile tilapia can
be considered as a good essential element source for human consumption regardless
of salinity changes.
573 | UMT UNDERGRADUATE RESEARCH DAY 2018