Growth of Corophium volutator under laboratory conditions
In: Archives of Environmental Contamination and Toxicology. Springer: New York. ISSN 0090-4341; e-ISSN 1432-0703, meer
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| Trefwoorden |
Analysis > Image analysis
Environmental effects > Temperature effects
Growth rate
Image analysis
Image interpretation > Image analysis
Laboratory conditions
Population characteristics > Population number
Population dynamics > Population change > Population growth
Population growth
Population growth
Properties > Biological properties > Tolerance
Tests > Bioassays
Tests > Toxicity tests
Corophium volutator (Pallas, 1766) [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- Kater, B.J., meer
- Jol, J.G., meer
- Smit, M.G.D.
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| Abstract |
Temperature-dependent growth is an important factor in the population model of Corophium volutator that was developed to translate responses in a 10-day acute bioassay to ecological consequences for the population. The growth rate, however, was estimated from old data, based on a Swedish population. Therefore, new growth rates are estimated herein from two experiments using Corophium volutator. To save time, a tool was developed to use image analysis to measure Corophium volutator. The experiments show that Corophium volutator has a low growth rate at low temperatures (5-10°C). At higher temperatures no difference in growth rate between 15°C and 25°C was found. The growth rate from these experiments is comparable to data found in literature. A new relationship between temperature and individual growth was estimated, and incorporated into the Corophium population model. As the model also uses the same temperature relationship for reproduction, the modelled population growth rate at different temperatures changes as a result of the new data. The new growth rate and the updated temperature relationship result in reduced tolerance to external stressors, as previously predicted by the model. . |
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