89
There are few other natural sources of nutrients in mangrove ecosystem like (i)
seepage of nutrient rich pore-water from creek banks during falling tides and (ii)
microbial mineralization of nutrient containing organic matter in the creek water
itself. Lara and Dittmar (1999) conducted a study in a Brazilian mangrove creek and
suggested that most of the diurnal nutrient oscillations are the result of dilution of
nutrient-rich pore water seeping from creek banks and tidal driven volume of oceanic water.
Fig. 4.2 Trap to collect the mangrove litter
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
Premonsoon Monsoon Postmonsoon
Henry’s Island
Sagar South
Chemaguri
Gosaba
Canning
Total Litter fall (gm m -2
d -1
)
Fig. 4.3 Seasonal variation of total litter fall in the sampling stations
4 Mangroves: A Nutrient Retention Box
There are few other natural sources of nutrients in mangrove ecosystem like (i)
seepage of nutrient rich pore-water from creek banks during falling tides and (ii)
microbial mineralization of nutrient containing organic matter in the creek water
itself. Lara and Dittmar (1999) conducted a study in a Brazilian mangrove creek and
suggested that most of the diurnal nutrient oscillations are the result of dilution of
nutrient-rich pore water seeping from creek banks and tidal driven volume of oceanic water.
Fig. 4.2 Trap to collect the mangrove litter
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
Premonsoon Monsoon Postmonsoon
Henry’s Island
Sagar South
Chemaguri
Gosaba
Canning
Total Litter fall (gm m -2
d -1
)
Fig. 4.3 Seasonal variation of total litter fall in the sampling stations
4 Mangroves: A Nutrient Retention Box