Harry Butler Institute, Murdoch University, Perth, Western Australia

To cite this article: Cottingham A, Beatty S, Tweedley J.(2024). Alcoa Foundation Cybernetic Water Quality Monitoring Program: Daily Update for ManMarina on 2024-11-20. Spyvalve Repositories, Vol. 1.

Weather conditions

The following weather report is autogenerated based on data obtained from the Bureau of Meteorology for Mandurah. The contents of this report have not undergone rigorous assessment and thus care must be taken when drawing conclusions.

Air temperatures recorded at Mandurah ranged from 18.8 to 23 degrees C. Total rainfall was 461 mm. Humidity ranged from 74 to 95% (Fig.1). Maximum wind speed was 22 km/h (Fig.2).

Figure 1. Weather conditions recorded for Mandurah.

Figure 2. Wind conditions (direction and speed) recorded at Mandurah.

Data records for last day

WARNING. This report is autogenerated daily for data collected at ManMarina. The contents of this report have not undergone rigorous assessment. Care must be taken when drawing conclusions from the following analyses.

Figure 1. Approximate frequency of data records received by the network. This represents ~100 % of possible records for this station.

There were 6 active agents sending data (Table 1). These are based on the difference between the minimum and maximum mV values for each Agent, with a minimum difference of 10 mV being sufficient to deem those data relaible. Unreliable Agents are removed from analyses. Over the day percentage open ranged from 69 to 95 %. The number of closures for the day ranged from 7 to 38 and the number of micro-closures from 13 to 58. The maximum time all mussels closed at once was 1 minutes.

Active Min (mV) Max(mV) Diff(mV) % open n closures n micro-closures
A000 Active 503 523 20 85 30 58
A001 Down 486 491 5 NA NA NA
A002 Active 499 522 23 84 14 19
A003 Active 498 541 43 82 26 37
A004 Active 463 481 18 95 7 13
A005 Active 503 518 15 69 38 43
A006 Active 500 514 14 91 32 56
A007 Down 486 491 5 NA NA NA

Mean of shell gaping activity

Figure 4. Average of mussel gape activity recorded for 6 relaible agents. Data were transformed, with values of 1.0 corresponding to shells being open to their greatest extent and values <0.2 (red-dashed line) considered as shell being closed

Shell closures by the hour

Figure 5. Number of closures and total time each agent spent closed.

Figure 6. Transformed mussel gape activity for the 6 relaible agents and water temperature at ManMarina. # Appendix

Appendix 1. Raw valve gape activity for ManMarina.