add section about gaping pace and sampling rate, with added citations

2 files changed, 68 insertions, 1 deletions

diff --git a/ref.bib b/ref.bib
index 1461e37..544bdf0 100644
--- a/ref.bib
+++ b/ref.bib
@@ -1,5 +1,5 @@
 @Article{FerreiraRodriguez2023,
-  author       = {Ferreira-Rodríguez, Noé and Beggel, Sebastian and Geist, Juergen P. and Modesto, Vanessa and Österling, Martin and Riccardi, Nicoletta and Sousa, Ronaldo and Urbańska, Maria},
+  author       = {Noé Ferreira-Rodríguez and Sebastian Beggel and Juergen P. Geist and Vanessa Modesto and Martin Österling and Nicoletta Riccardi and Ronaldo Sousa and Maria Urbańska},
   date         = {2023-11},
   journaltitle = {ACS ES&T Water},
   title        = {Freshwater Mussels as Sentinels for Safe Drinking Water Supply in Europe},
@@ -43,6 +43,49 @@
   urldate  = {2024-04-16},
 }
 
+@Article{Robson2009,
+  author       = {Anthony Robson and Gethin R. Thomas and Carlos Garcia {de Leaniz} and Rory Wilson},
+  date         = {2009-06},
+  journaltitle = {Aquatic Biology},
+  title        = {Valve gape and exhalant pumping in bivalves},
+  doi          = {10.3354/ab00128},
+  issn         = {1864-7790},
+  pages        = {191--200},
+  subtitle     = {optimization of measurement},
+  volume       = {6},
+  file         = {:Robson2009 - Valve Gape and Exhalant Pumping in Bivalves_ Optimization of Measurement.pdf:PDF},
+  publisher    = {Inter-Research Science Center},
+}
+
+@Article{Miller2022,
+  author       = {Luke P. Miller},
+  date         = {2022-05},
+  journaltitle = {Integrative and Comparative Biology},
+  title        = {Monitoring Bivalve Behavior and Physiology in the Laboratory and Field Using Open-Source Tools},
+  doi          = {10.1093/icb/icac046},
+  issn         = {1557-7023},
+  number       = {4},
+  pages        = {1096--1110},
+  volume       = {62},
+  file         = {:Miller2022 - Monitoring Bivalve Behavior and Physiology in the Laboratory and Field Using Open Source Tools.pdf:PDF},
+  publisher    = {Oxford University Press (OUP)},
+}
+
+@Article{Robson2006,
+  author       = {Anthony Robson and Rory Wilson and Carlos Garcia {de Leaniz}},
+  date         = {2006-12},
+  journaltitle = {Marine Biology},
+  title        = {Mussels flexing their muscles},
+  doi          = {10.1007/s00227-006-0566-z},
+  issn         = {1432-1793},
+  number       = {3},
+  pages        = {1195--1204},
+  subtitle     = {a new method for quantifying bivalve behaviour},
+  volume       = {151},
+  file         = {:Robson2006 - Mussels Flexing Their Muscles.pdf:PDF},
+  publisher    = {Springer Science and Business Media LLC},
+}
+
 @Comment{jabref-meta: databaseType:biblatex;}
 
 @Comment{jabref-meta: fileDirectory-jonas-bastian:/home/jonas/Projects/RUC/LIB/mussel;}
diff --git a/report.qmd b/report.qmd
index 7a87476..7600237 100644
--- a/report.qmd
+++ b/report.qmd
@@ -42,6 +42,30 @@ an alarm is triggered and further laboratory tests are done
 
 This project will implement mechanisms like the polish system.
 
+## Detecting stressful mussel behavior
+
+The use of a mussel as biodetector requires distinction
+between slow-paced valve gaping change (normal),
+paused valve gaping at the closed position (resting or starved)
+and rapid valve gaping change (stressed)
+[@Miller2022 p. 1097; @Robson2006 p. 1200].
+
+Detecting behavioural change to a rapid gaping pace,
+measurements are needed at a much higher sampling rate
+than that of the normal gaping pace.
+E.g. one mussel with normal gaping pace of about 1 minute
+required a sample rate of 5 seconds to detect its normal pace,
+and another mussel with normal gaping pace of 3-4 minutes
+required a sample rate of 0.5 seconds to detect more rapid cycles
+[@Robson2009 p. 195].
+Another measurement of both normal and stressed behaviour,
+assuming that x-axis is in seconds (not hours as indicated),
+similarly shows a need for fast sampling rate
+to detect a normal pace of about 1.2 minutes
+and a stressed pace faster than the visualized resolution
+of about 1 second
+[@FerreiraRodriguez2023 fig. 2].
+
 ## Copyright and licensing
 
 To encourage collaboration and stimulate a circular gift economy