Effects of substrate size and cleaning regime on growth and survival of captive-bred juvenile freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758)
Description
These data were generated during an experiment investigating the effects of substrate size and cleaning regime on the survival and growth of the freshwater pearl mussel Margaritifera margaritifera. The full method for this experiment can be found in: Lavictoire, L. et al (2016) Effects of substrate size and cleaning regime on growth and survival of captive-bred juvenile freshwater pearl mussels, Margaritifera margaritifera (Linnaeus, 1758) Hydrobiologia 766(1): 89-102. This spreadhsheet details: 1. Survival of juveniles (green tab) sampled every 2 months beginning at the experiment start date (June 2012) and ending on the final sample point (July 2014). 2. Mean daily water temperature (red tab). Temperature was logged hourly and the mean daily temperature derived from this. 3. Sample dates (orange tab). Each sample occasion took several days to complete. The average sample date is the mean date of the sampling period but the dates on which the first and last samples were taken are provided also. 4. Length of juvenile mussels at each sampling point (blue tabs). Row 1 details the replicate for the measurements with a coding system where: 0.25-1 = substrate sieved to 0.25 - 1 mm; 1 - 2 = substrate sieved to 1 - 2 mm; W OR M = weekly or monthly cleaning regime. Therefore 1-2/W/7 = The seventh replicate of the treatment where substrate measured 1-2 mm and was cleaned on a weekly basis. In each replicate, 30 individuals were measured on each occasion. If 30 individuals were not available (due to mortality within that replicate) then all available individuals were measured. Height data are also available from the author upon request - louiselavictoire3@gmail.com.