Geochemical equilibria and primary productivity in natural lakes Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/6108vc64h

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The objectives for year have been the gathering of existing information, initiation of monitoring water quality, evaluation of analytical methods and procedures for measuring nutrient regeneration in the sediment-water interface, and the study of growth-environment correlations in Findley Lake, Chester Morse Reservoir, and Lakes Sammamish and Washington. Progress was made in all phases. An annual budget of total chemical elements entering and leaving Lake Sammamish should he largely completed during 1971. Preliminary data indicate that years after the major portion of phosphorus was directed from Lake Sammamish, the chemical and biological characters are showing only slight and probably insignificant changes compared to what has been observed in Lake Washington. The chemical and biological characteristics of the lakes reveal a graded sequence in chemical composition and productivity. A 4- to 20- fold increase in concentration is observed with most chemical and biological parameters when Findley and Chester Morse Lakes are compared to Lake Washington. Phytoplankton productivity (carbon assimilation rate) and total biomass (chlorophyll) show a progressive increase from Findley Lake (extreme oligotrophy) to Lake Washington (moderate eutrophy). Based on particle-size distribution and carbon: nitrogen rations in surface sediments, the sediments of Findley and Chester Morse Lakes appear to be different from those at Lake Sammamish and Washington. Higher ratios of carbon to nitrogen and coarser sediments are observed in the upper Cedar River drainage lakes.
Resource Type
Date Available
Date Issued
Series
Subject
Rights Statement
Publisher
Language
File Format
File Extent
  • 334162 bytes
Digitization Specifications
  • Master files scanned at 600 ppi (256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9080C in TIF format. PDF derivative scanned at 300 ppi (256 B&W), using Capture Perfect 3.0, on a Canon DR-9080C. CVista PdfCompressor 3.1 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2008-01-18T22:00:10Z (GMT). No. of bitstreams: 1 Internal Report_30.pdf: 334162 bytes, checksum: d1fd203e0bce92742e4094bdbddd47e9 (MD5) Previous issue date: 1971
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2008-01-18T22:00:09Z (GMT) No. of bitstreams: 1 Internal Report_30.pdf: 334162 bytes, checksum: d1fd203e0bce92742e4094bdbddd47e9 (MD5)
  • description.provenance : Submitted by Adam Powell (apscanner@gmail.com) on 2008-01-17T23:15:14Z No. of bitstreams: 1 Internal Report_30.pdf: 334162 bytes, checksum: d1fd203e0bce92742e4094bdbddd47e9 (MD5)

Relationships

In Administrative Set:
Last modified: 07/18/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items