Anthropogenic activities are altering total nutrient loads to many estuaries and freshwaters,
resulting in high loads not only of total nitrogen (N), but in some cases, of chemically …

An overview of the first spatially explicit, multielement (N, P, and C), multiform (dissolved
inorganic: DIN, DIP; dissolved organic: DOC, DON, DOP; and particulate: POC, PN, PP) …

Large-scale commercialization of the Haber–Bosch (HB) process is resulting in
intensification of nitrogen (N) fertilizer use worldwide. Globally N fertilizer use is far …

While the global increase in the use of nitrogen-based fertilizers has been well recognized,
another change in fertilizer usage has simultaneously occurred: a shift toward urea-based …

Historically most harmful algal species (HAS) have been thought to be strictly phototrophic.
Mixotrophy, the use of phototrophy and heterotrophy in combination, has been emphasized …

Relative to inorganic nitrogen, concentrations of dissolved organic nitrogen (DON) are often
high, even in regions believed to be nitrogen-limited. The persistence of these high …

The temporal distribution of bloom-forming cyanobacteria-Microcystis and its correlation with
related physical and chemical variables including the total nitrogen-to-total phosphorus ratio …

Nitrogen (N) and phosphorus (P) inputs influence algal community structure and function.
The rates and ratios of N and P supply, and different N forms (eg, NO3 and NH4), from …

Dissolved nitrogen (N) as urea ([NH2] 2CO), nitrate (NO‐3), and ammonium (NH+ 4) was
added to naturally phosphorus (P)‐rich lake water (up to 175 µg PL‐1) to test the …

Stable isotope applications have evolved from simple characterizations of isotope
composition in organisms and organic matter, to highly complex methodologies on scales …