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 2024-11-18. 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 14.9 to 28.3 degrees C. Total rainfall was 0 mm. Humidity ranged from 20 to 60% (Fig.1). Maximum wind speed was 24 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 80 to 99 %. The number of closures for the day ranged from 9 to 43 and the number of micro-closures from 6 to 91. 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 504 522 18 99 9 19
A001 Down 487 491 4 NA NA NA
A002 Active 499 521 22 99 9 6
A003 Active 506 540 34 90 24 23
A004 Active 462 482 20 95 10 11
A005 Active 503 517 14 80 43 91
A006 Active 502 517 15 98 15 20
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.