Mcapitata Respiration and Photosynthesis Early Life History July 2020

This entry lists the runs and data collection for early life history respirometry (photosynthesis and respiration) in early life stages (larvae, recruits, and juveniles) of Montipora capitata in July 2020.

Activities

Data were collected as detailed in the respirometry protocol. In this project, respirometry was conducted on the bench top at ambient temperature. Photosynthesis was measured at 500 PAR under AquaIllumination light. All measurements were taken in 1um filtered seawater with coverslips used for sealing.

Larvae and juveniles were collected from larval rearing and settlement protocols. Juveniles were collected from those grown from June 2020 spawning reared by J. Hancock. These individuals were used to test metabolic scaling in colonies of different fusion sizes (solitary juveniles vs fusion between multiple juveniles at time of settlement).

Metadata of each well in each run, including number of samples and well location can be found in respirometry metadata. When recruits were available, larvae and recruits were analyzed in the same run, but in separate wells (i.e., 5 wells of larvae, 5 wells of recruits).

In each run, photosynthesis was run under light for ~15 minutes. In future runs add more time for each phase (25-30 min if possible). Lights were then turned off and respiration was run for another ~15 minutes. Specific start and end times for consistent slope can be found in the start times datasheet.

Run Information

Table 1: Respirometry run information for M. capitata early life history measurements in July 2020.

Date Run # Time Start Life Stage Sample Size No. Blanks No. Sample Wells Sampling Method Notes
23 July 1 1700 Larvae 6 per well 2 wells 10 wells 250uL 4% PFA  
23 July 2 1750 Larvae 6 per well 2 wells 10 wells 250uL 4% PFA  
23 July 3 1930 Juveniles 1 juvenile per well 2 wells 10 wells 250uL 4% PFA 1-3 polyps per juvenile
23 July 4 2045 Juveniles 1 juvenile per well 2 wells 10 wells 250uL 4% PFA 4-8 polyps per juvenile
24 July 1 1800 Larvae 6 per well 2 wells 10 wells 250uL 4% PFA  
24 July 2 2000 Larvae 6 per well 2 wells 10 wells 250uL 4% PFA  
28 July 1 0840 Larvae, Recruits 6 per well 2 wells 10 wells 250uL 4% PFA  
28 July 2 0935 Larvae, Recruits 6 per well 2 wells 10 wells 250uL 4% PFA  
28 July 3 1045 Larvae, Recruits 6 per well 2 wells 10 wells 250uL 4% PFA  
28 July 4 1100 Larvae, Recruits 6 per well 2 wells 10 wells 250uL 4% PFA  
30 July 1 1345 Larvae, Recruits 6 per well 2 wells 10 wells 250uL 4% PFA  
30 July 2 1430 Larvae, Recruits 6 per well 2 wells 10 wells 250uL 4% PFA  
30 July 3 1530 Larvae, Recruits 6 per well 2 wells 10 wells 250uL 4% PFA  

Data Offload

All raw data files were offloaded and can be found here: raw data frames.

Written on July 30, 2020