4-3-Phosphate (PO 4
-
)……………………………………………………………….15
4-4-Ammonium (NH 4
+ )…………………………………………………………….15
4-5-Silicate (Si(OH)
-
4 )………………………………………………………………..16
4-6-L’étalonnages………………………………………………………………….16
III. RESULTATS ET INTERPRETATION
1. La température………………………………………………………………………19
2. La salinité……………………………………………………………………………20
3. L'oxygène dissous…………………………………………………………………….21
4. pH …………………………………………………………………………………..22
5. La matière en suspension …………………………………………………………….23
6. La matière organique particulaire…………………………………………………….24
7. Les sels nutritifs……………………………………………………………………..26
7-1-L’ammonium (NH 4
+ ) ……………………………………………………………...26
7-2-Nitrite NO 2
-
………………………………………………………………………27
7-3-Nitrate NO 3
- …………………………………………………………………….28
7-4-Phosphate……………………………………………………………………….29
7-5-Silicate…………………………………………………………………………...30
CONCLUSION……………………………………………………………………………31