Biogeochemical Cycles - Coastal Lagoons: Ecosystem Processes and Modeling for Sustainable Use and Development - page 107

TABLE 4.2
PON to DON Rate Constant (day −1 )

Min. Max. Avg. Location Reference As Cited in Explanation

0.075 Chesapeake

Bay

Cerco and
Cole, 1994

Cerco and
Cole 91

Labile PON
to DON

0.005 Chesapeake

Bay

Cerco and
Cole, 1994

Cerco and
Cole 91

Refractory PON
to DON

0.3 3 San Juan Bay

Estuary

Bunch
et al., 2000

Bunch
et al. 92

Labile PON
to DON

0.005 San Juan Bay

Estuary

Bunch
et al., 2000

Bunch
et al. 92

Refractory PON
to DON

TABLE 4.3
Rate Constants for Decomposition of Organic Nitrogen to NH 4 + (day − 1 )
Min. Max. Avg. Location Reference As Cited in Explanation

0.14 Chesapeake

Bay

Salas and
Thomann,
1978

Bowie et al. 93 PON to NH 4 +

0.03 Chesapeake

Bay

Hydroqual Inc.,
1987

Lung and
Paerl 79

0.005 0.05 Texas bays and

estuaries

Brandes, 1976 Bowie et al. 93 PON to NH 4 +

0.14 Potomac River

Estuary

O'Connor, 1981 O'Connor 94

0 0.3 James River

Estuary

O'Connor, 1981 O'Connor 94

0.1 0.15 James River

Estuary

Lung, 1986 Lung and

Paerl 79

0.01 Patuxent River

Estuary

O'Connor, 1981 O'Connor 94

0.02 Patuxent River

Estuary

Lung, 1992 Lung 80 At 20°C, value used

in modeling

0.1 Neuse River

Estuary

Lung and Paerl,
1986

Lung and
Paerl 79

0.08 Manasquan

Estuary

Najarian et al.,
1984

Najarian
et al. 95

Detritus to NH 4 +

0.015 Chesapeake

Bay

Cerco and Cole,
1994

Cerco and
Cole 91

Given as minimum
mineralization
rate of DON

0.075 Maryland

coastal waters

Lung and
Hwang, 1994

Lung and
Hwang 81

DON to NH 4 + , at
20°C, value used in
modeling

0.2 2 San Juan Bay

Estuary

Bunch et al.,
2000

Bunch et al. 92 DON to NH 4 +