Interactions of dissolved and particulate nitrogen in lake metabolism

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1971

DOI:https://doi.org/10.2172/4729797· OSTI ID:4729797

Manny, Bruce Andrew ^[1]

---

1. Michigan State Univ., East Lansing, MI (United States)

The first objective of this work was to relate changes in inorganic nitrogen concentrations and standing stocks of sestonic organic nitrogen to understand how these two parameters relate to production of organic nitrogen. Two lakes representing extremes of hardwater productivity were sampled weekly for over one year to compare rates of allochthonous nitrogen entry, rates of nitrogen regeneration and organic nitrogen production in each lake. Nitrogen content of net- and nannoseston size fractions (Hutchinson, 1967:235) were determined to see whether nannoplankton was responsible for more organic nitrogen production than the netplankton. Lastly, analytical techniques were developed to quantify changes in dissolved organic nitrogen (DON) in natural waters (Manny, Miller and Wetzel, 1971) because cyclic changes in dissolved organic matter (DOM) are intimately related to mechanisms regulating rates of energy and materials transfer in lake metabolism and eutrophication (Wetzel, 1965, 1966, 1967, 1969, 1970; Wetzel and Allen, 1971).

• Research Organization: Michigan State Univ., East Lansing, MI (United States)
• Sponsoring Organization: US Atomic Energy Commission (AEC)
• NSA Number: NSA-26-001694
• OSTI ID: 4729797
• Report Number(s): COO--1599-41
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
59 BASIC BIOLOGICAL SCIENCES
NITROGEN/reactions of dissolved and particulate
in lake metabolism
NO KEYWORDS