Savriama, Yoland; Stige, Leif Christian; Gerber, Sylvain; Pérez, Thierry; Alibert, Paul; David, Bruno (2015): Ambulacral length with number of pore pairs/tubercles for both species of sea urchins and for six sampling sites to quantify fluctuating asymmetry [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.842844, Supplement to: Savriama, Y et al. (2015): Impact of sewage pollution on two species of sea urchins in the Mediterranean Sea (Cortiou, France): Radial asymmetry as a bioindicator of stress. Ecological Indicators, 54, 39-47, https://doi.org/10.1016/j.ecolind.2015.02.004
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
The surroundings of the Cortiou sewage are among the most polluted environments of the French Mediterranean Sea (Marseilles, France). So far, no studies have precisely quantified the impact of pollution on the development of organisms in this area.Methods: We used a fluctuating asymmetry (FA) measure of developmental instability (DI) to assess environmental stress in two species of radially symmetric sea urchins (Arbacia lixula and Paracentrotus lividus). For six sampling sites (Cortiou, Riou, Maire, East Maire, Mejean, and Niolon), levels of FA were calculated from continuous and discrete skeletal measures of ambulacral length, number of pore pairs and primary tubercles.Results: For both species, the most polluted sampling site, Cortiou, displayed the highest level of FA, while the Maire and East Maire sampling sites displayed the lowest levels. A. lixula revealed systematic differences in FA among sampling sites for all characters and P. lividus showed differences in FA for the number of primary tubercles.Conclusions: Statistical analyses of FA show a concordance between the spatial patterns of FA among sampling sites and the spatial distribution of sewage discharge pollutants in the Cortiou area. High developmental stress in these sampling sites is associated with exposure to high concentrations of heavy metals and many harmful organic substances contained in wastewater. FA estimated from structures with complex symmetry appears to be a fast and reliable tool to detect subtle differences in FA. Its use in biomonitoring programs for inferring anthropogenic and natural environmental stress is suggested.
Coverage:
Median Latitude: 43.260872 * Median Longitude: 5.314121 * South-bound Latitude: 43.176693 * West-bound Longitude: 5.219649 * North-bound Latitude: 43.339101 * East-bound Longitude: 5.401827
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
Download Data
Datasets listed in this publication series
- Savriama, Y; Stige, LC; Gerber, S et al. (2015): Ambulacral length measured for both species of sea urchins and for six sampling sites off Marseille. https://doi.org/10.1594/PANGAEA.842841
- Savriama, Y; Stige, LC; Gerber, S et al. (2015): Number of pore pairs/tubercles counted for both species of sea urchins and for six sampling sites off Marseille. https://doi.org/10.1594/PANGAEA.842842