Accession Number : ADA183404

Title :   Analysis of Natural Phytoplankton Populations by Pattern Recognition of Two-Dimensional Fluorescence Spectra.

Descriptive Note : Technical rept.,

Corporate Author : EMORY UNIV ATLANTA GA DEPT OF CHEMISTRY

Personal Author(s) : Warner,Isiah M ; Oldham,P B

PDF Url : ADA183404

Report Date : 05 Aug 1987

Pagination or Media Count : 26

Abstract : Two-dimensional Fourier transform based pattern recognition is used to characterize natural populations of marine algae by their two-dimensional, in vivo fluorescence spectra. The two-dimensional fluorescence spectrum is called and excitation-emission matrix (EEM) and is acquired by a portable, multichannel fluorescence spectrophotometer (PMFS). Natural populations in the Gulf of Mexico south of Louisiana and the coastal area near Savannah, Georgia are characterized by their in-situ fluorescence. Characterization of unknown populations is achieved by comparing the unknown EEMs to a collection of standard EEMs acquired from 23 species (6 classes) of marine algae. Pattern recognition results from the data collected along the Georgia coast was confirmed by microscopic examination of selected samples. Keywords: fluorescence analysis; marine analysis; marine algae; Fourier spectroscopy.

Descriptors :   *FLUORESCENCE, *MARINE BIOLOGY, ALGAE, COASTAL REGIONS, COLLECTION, FLUORESCENCE, FOURIER SPECTROSCOPY, GEORGIA, GULFS, IN VIVO ANALYSIS, LOUISIANA, MARINE BIOLOGY, MEDICAL EXAMINATION, MEXICO, MICROSCOPY, MULTICHANNEL, PATTERN RECOGNITION, PHYTOPLANKTON, POPULATION, SPECTRA, SPECTROPHOTOMETERS, TWO DIMENSIONAL

Subject Categories : Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE