Descriptions of eggs, larvae, and early juveniles of the Iowa darter, Etheostoma exile (Girard), from Lac Heney, Quebec

Autor:	Thomas P. Simon, Daniel J. Faber
Rok vydání:	1987
Předmět:	Larva biology Ecology Etheostoma exile Early juvenile Animal Science and Zoology biology.organism_classification Darter Ecology Evolution Behavior and Systematics Meristics
Zdroj:	Canadian Journal of Zoology. 65:1264-1269
ISSN:	1480-3283 0008-4301
DOI:	10.1139/z87-197
Popis:	Descriptive morphology of egg, larval, and early juvenile stages of the Iowa darter, Etheostoma exile (Girard), from Lac Heney, Quebec, were examined using morphological, meristic, morphometric, and pigment characteristics. The Iowa darter is a phyto-lithophil spawning on aquatic macrophytes and exposed tree roots. Ova are weakly indented and range in diameter from 0.9 to 1.3 mm, with larvae presumably hatching at ca. 3.6 mmTL. The Iowa darter has 16–18 preanal myomeres (typically 17), and from 20–23 postanal myomeres. Pigmentation is superficially most similar to the yellow perch. A synopsis of the known aspects of the early life history is presented and distinctive morphological characteristics of syntopic percids are compared.
Databáze:	OpenAIRE
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