Estimates of biomass of detritus food chain Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/0c483k63k

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  • Macrobenthos populations of the IBP lakes were sampled during October and November of 1972. Analyses of the samples revealed dominance of chrinomids and oligochaetes in both littoral and profundal regions for at least this time of year. Due to sampling difficulties the oligochaete material was not used for chemical analyses. Biomass per square meter was determined for the chironomids. From these data, literature values were used to estimate calories, carbohydrate, fat, and protein per square meter. A model taken from Johanson and Brinkhurst (1971b) is presented as a means of determining amounts and pathways of detrital input to higher trophic levels. Because this model encompasses more than the macrobenthos, data from other concurrent IBP studies will be used. The model and the 1972 project have suggested different sampling regimes and methods to be undertaken in 1973.
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  • 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.
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  • description.provenance : Made available in DSpace on 2008-01-29T23:57:28Z (GMT). No. of bitstreams: 1 Internal Report_87.pdf: 104471 bytes, checksum: 6e888c15f7c227aef70c138ac37ca867 (MD5) Previous issue date: 1972
  • description.provenance : Submitted by Adam Powell (apscanner@gmail.com) on 2008-01-24T23:38:06Z No. of bitstreams: 1 Internal Report_87.pdf: 104471 bytes, checksum: 6e888c15f7c227aef70c138ac37ca867 (MD5)
  • description.provenance : Approved for entry into archive by Laura Wilson(laura.wilson@oregonstate.edu) on 2008-01-29T23:57:28Z (GMT) No. of bitstreams: 1 Internal Report_87.pdf: 104471 bytes, checksum: 6e888c15f7c227aef70c138ac37ca867 (MD5)

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