The effect of oxygen on the growth of Oncorhynchus mykiss embryos with and without a chorion
| Autor: | E. D. Stevens, Patricia A. Wright, C. S. Ciuhandu |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Hyperoxia
endocrine system animal structures urogenital system Hatching Environmental factor chemistry.chemical_element Hypoxia (environmental) Embryo Anatomy Aquatic Science Biology medicine.disease_cause Oxygen Andrology chemistry embryonic structures medicine Rainbow trout medicine.symptom Ecology Evolution Behavior and Systematics |
| Zdroj: | Journal of Fish Biology. 67:1544-1551 |
| ISSN: | 1095-8649 0022-1112 |
| DOI: | 10.1111/j.1095-8649.2005.00856.x |
| Popis: | Growth was measured in dechorionated and ehorionated embryos of rainbow trout Oncorhynchus mykiss exposed to three oxygen treatments: hypoxia. normoxia and hyperoxia (nominally 5, 10 and 15 mg l -1 ). Dechorionated embryos grew faster than ehorionated ones in all three oxygen treatments. Similar patterns, however, were found in both dechorionated and chorionated groups: embryos exposed to hypoxia grew less than normoxic and hyperoxie exposed embryos. Moreover. there was no significant interaction between the effect of oxygen levels and presence or absence of' the chorion on growth after hatching. These results suggest that the effect of oxygen on growth was not affected by the presence of the Chorion. |
| Databáze: | OpenAIRE |
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