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Environmental influence on calcification of the bivalve Chamelea gallina along a latitudinal gradient in the Adriatic Sea.
- Source :
-
Scientific reports [Sci Rep] 2019 Aug 01; Vol. 9 (1), pp. 11198. Date of Electronic Publication: 2019 Aug 01. - Publication Year :
- 2019
-
Abstract
- Environmental factors are encoded in shells of marine bivalves in the form of geochemical properties, shell microstructure and shell growth rate. Few studies have investigated how shell growth is affected by habitat conditions in natural populations of the commercial clam Chamelea gallina. Here, skeletal parameters (micro-density and apparent porosity) and growth parameters (bulk density, linear extension and net calcification rates) were investigated in relation to shell sizes and environmental parameters along a latitudinal gradient in the Adriatic Sea (400 km). Net calcification rates increased with increasing solar radiation, sea surface temperature and salinity and decreasing Chlorophyll concentration in immature and mature shells. In immature shells, which are generally more porous than mature shells, enhanced calcification was due to an increase in bulk density, while in mature shells was due to an increase in linear extension rates. The presence of the Po river in the Northern Adriatic Sea was likely the main driver of the fluctuations observed in environmental parameters, especially salinity and Chlorophyll concentration, and seemed to negatively affect the growth of C. gallina.
- Subjects :
- Animal Shells radiation effects
Animals
Bivalvia radiation effects
Calcification, Physiologic radiation effects
Chlorophyll analysis
Ecological Parameter Monitoring statistics & numerical data
Salinity
Seawater chemistry
Sunlight adverse effects
Temperature
Animal Shells growth & development
Bivalvia growth & development
Calcification, Physiologic physiology
Environmental Exposure adverse effects
Shellfish
Subjects
Details
- Language :
- English
- ISSN :
- 2045-2322
- Volume :
- 9
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Scientific reports
- Publication Type :
- Academic Journal
- Accession number :
- 31371745
- Full Text :
- https://doi.org/10.1038/s41598-019-47538-1