Discriminant Separation of Fishes: A Preliminary Study of Fish Eggs by Curie-Point Pyrolysis–Mass Spectrometry–Chemometric Analysis

Autor:	Grant Gill Smith, Ron Valcarce, Douglas Stevenson, John W. Sigler
Rok vydání:	1991
Předmět:	Ptychocheilus Colorado squawfish biology Ecology Zoology Gila robusta Aquatic Science biology.organism_classification Mass spectrometry Trout Chemotaxonomy Oncorhynchus Curie temperature Ecology Evolution Behavior and Systematics
Zdroj:	Transactions of the American Fisheries Society. 120:796-802
ISSN:	1548-8659 0002-8487
DOI:	10.1577/1548-8659(1991)120<0796:dsofap>2.3.co;2
Popis:	We conducted preliminary research to assess a new, nonlethal method for identifying larval fishes below currently recognized species levels. We used Curie-point pyrolysis and mass spectrometry to discriminate among fish egg samples representing Colorado squawfish Ptychocheilus lucius, Pahranagat roundtail chub Gila robusta jordani, and, two populations of cutthroat trout Oncorhynchus clarki. When preliminary data were processed by unsupervised pattern recognition (multivariate cluster and display methods), the species could be clearly discriminated. Variation within cutthroat trout samples was greater than variation in the other species. Results show that Curie-point pyrolysis with mass spectrometry provides characteristic chemotaxonomic information for the samples.
Databáze:	OpenAIRE
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