Geographic variation in age, growth and size structure ofPercilia irwinifrom south-central Chile
| Autor: | Mark C. Belk, Evelyn Habit, John R. Aedo |
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| Rok vydání: | 2009 |
| Předmět: |
Male
Aging Conservation of Natural Resources geography geography.geographical_feature_category Geography biology Ecology Population Dynamics Drainage basin Endangered species Geographic variation Mean age Aquatic Science biology.organism_classification Perciformes Sexual dimorphism Percilia irwini Rivers Animals Body Size Female Chile Water Pollutants Chemical Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of Fish Biology. 74:278-284 |
| ISSN: | 1095-8649 0022-1112 |
| DOI: | 10.1111/j.1095-8649.2008.02113.x |
| Popis: | Percilia irwini from the Andalién and Biobío River basins of south-central Chile exhibited a mean age of 1.4 years with a maximum age of 4 years. Size at age differed among river zones and males were 10% larger than females at all ages. Compared to other locations, populations of P. irwini inhabiting areas subject to industrial and domestic effluents exhibited smaller size structure. |
| Databáze: | OpenAIRE |
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