diff --git a/src/main/java/pikelake/Grid.java b/src/main/java/pikelake/Grid.java
index 82bb1289b47b5f1f6a7a2cb7cfdda435a92dc9e4..d1227c4eabbcd756df37f8450fe706c2980464d6 100644
--- a/src/main/java/pikelake/Grid.java
+++ b/src/main/java/pikelake/Grid.java
@@ -6,9 +6,6 @@ import fr.cemagref.simaqualife.kernel.AquaNismsGroup;
 import fr.cemagref.simaqualife.kernel.util.TransientParameters.InitTransientParameters;
 import fr.cemagref.simaqualife.pilot.Pilot;
 import pikelake.pikes.Pike;
-//import predatorprey.preys.Prey;
-import umontreal.iro.lecuyer.probdist.UniformDist;
-import umontreal.iro.lecuyer.randvar.UniformGen;
 
 public class Grid extends Grid2D<Cell, Individual> {
 
@@ -17,65 +14,29 @@ public class Grid extends Grid2D<Cell, Individual> {
         // TODO Auto-generated constructor stub
     }
 
-    /**
-     * <code>preyCarryingCapacity</code> number of preys that a cell can support
-     */
-//    private int preyCarryingCapacity;
-    private double habitatValue0 = .25;
-    private double habitatValue1 = .5;
-    private double habitatValue2 = 1;
-
-    transient private UniformGen uniformGen;
-    transient private double[] habitatValues;
-
     @InitTransientParameters
     public void initTransientParameters(Pilot pilot) {
 
-        this.pos = neighborsType.getPos();
-
-        habitatValues = new double[3];
-        habitatValues[0] = habitatValue0;
-        habitatValues[1] = habitatValue1;
-        habitatValues[2] = habitatValue2;
-
-        UniformGen uniformGen = new UniformGen(pilot.getRandomStream(), new UniformDist(0, habitatValues.length - 1));
-
-        grid = new Cell[gridWidth * gridHeight];
-        for (int i = 0; i < grid.length; i++) {
-            double hab = habitatValues[(int) Math.round(uniformGen.nextDouble())];
-            grid[i] = new Cell(i, hab); // , preyCarryingCapacity); 	/////////////////////////////////////////////////////////////////
-        }
+        // TODO
     }
 
     @Override
     public void addAquaNism(Individual ind, AquaNismsGroup group) {
         super.addAquaNism(ind, group);
-//        if (ind instanceof Prey) {	/////////////////////////////////////////////////////////////////
-//            ind.getPosition().addPrey((Prey) ind);	/////////////////////////////////////////////////////////////////
-//        } else {	/////////////////////////////////////////////////////////////////
-            ind.getPosition().addPike((Pike) ind);
-//        }	/////////////////////////////////////////////////////////////////
+        ind.getPosition().addPike((Pike) ind);
     }
 
     @Override
     public void moveAquaNism(Individual ind, AquaNismsGroup group, Cell dest) {
         super.moveAquaNism(ind, group, dest);
         this.removeAquaNism(ind, group);
-//        if (ind instanceof Prey) {	/////////////////////////////////////////////////////////////////
-//            dest.addPrey((Prey) ind);	/////////////////////////////////////////////////////////////////
-//        } else {	/////////////////////////////////////////////////////////////////
-            dest.addPike((Pike) ind);
-//        }	/////////////////////////////////////////////////////////////////
+        dest.addPike((Pike) ind);
     }
 
     @Override
     public void removeAquaNism(Individual ind, AquaNismsGroup group) {
         super.removeAquaNism(ind, group);
-//        if (ind instanceof Prey) {	/////////////////////////////////////////////////////////////////
-//            ind.getPosition().removePrey((Prey) ind);	/////////////////////////////////////////////////////////////////
-//        } else {	/////////////////////////////////////////////////////////////////
-            ind.getPosition().removePike((Pike) ind);
-//        }	/////////////////////////////////////////////////////////////////
+        ind.getPosition().removePike((Pike) ind);
     }
 
 }
diff --git a/src/main/java/pikelake/GridObserver.java b/src/main/java/pikelake/GridObserver.java
index ab6b9cbec43ea674043b1140761f577e8fdfc25e..3df8e09008dfc71b7b376e4cf8a08094ef02295b 100644
--- a/src/main/java/pikelake/GridObserver.java
+++ b/src/main/java/pikelake/GridObserver.java
@@ -41,7 +41,6 @@ public class GridObserver extends ObserverListener implements Configurable, Draw
     private String title;
     
     private Color envColor = Color.GREEN;
-    private Color preyColor = Color.BLUE;
     private Color pikeColor = Color.RED;
     @Description (name="Background color",tooltip="Background color")
     private Color bgColor = Color.WHITE;
@@ -163,16 +162,6 @@ public class GridObserver extends ObserverListener implements Configurable, Draw
             	// filling the cell with a color corresponding to the habitat level
             	g.setColor(new Color(envColor.getRed(),envColor.getGreen(),envColor.getBlue(),cellsAlpha[i]));
             	g2d.fill(cellRect);
-            	// drawing preys
-            	if (grid.getCells()[i].getPreys().size() > 0) {
-            	    g.setColor(preyColor);
-            	    preyDiameterX = cellRect.width*(double)grid.getCells()[i].getPreys().size()/grid.getCells()[i].getPreyCarryingCapacity();
-            	    preyDiameterY = cellRect.height*(double)grid.getCells()[i].getPreys().size()/grid.getCells()[i].getPreyCarryingCapacity();
-            	    g.fillOval((int)(cellRect.x + (cellRect.width - preyDiameterX)/2), (int)(cellRect.y + (cellRect.height - preyDiameterY)/2), (int)preyDiameterX, (int)preyDiameterY);
-            	    // represention as pie ... not very pretty
-            	    /*g2d.fill(new Arc2D.Double(cellRect,90,-360*((double)grid.getCells()[i].getPreys().size()/grid.getCells()[i].getPreyCarryingCapacity()),Arc2D.PIE));
-                    g2d.draw(new Arc2D.Double(cellRect,90,360,Arc2D.OPEN));*/
-                }
             	// drawing pikes presence
                 if (grid.getCells()[i].getPikes().size() > 0) {
                     g.setColor(pikeColor);
@@ -192,7 +181,7 @@ public class GridObserver extends ObserverListener implements Configurable, Draw
         int y = (int)(e.getY()/cellSizeY);
         int x = (int)(e.getX()/cellSizeX);
         Cell cell = grid.getCells()[grid.getGridWidth()*Math.min(y,grid.getGridHeight()-1) + Math.min(x,grid.getGridWidth()-1)];
-        label.setText("( "+x+" , "+y+" ) : habitat value = "+cell.getHabitatQuality()+" / "+cell.getPreys().size() + " preys ( max = "+cell.getPreyCarryingCapacity()+") and " + cell.getPikes().size()+ " pikes.");
+        label.setText("( "+x+" , "+y+" ) : habitat value = "+cell.getHabitatQuality()+" / " + cell.getPikes().size()+ " pikes.");
     }
 
     public static void main (String [] args){
diff --git a/src/main/java/pikelake/pikes/Pike.java b/src/main/java/pikelake/pikes/Pike.java
index 2a787f125b2a033ef9d69eb660b655fe3c15c1d6..84a0288cdf8641218c81dd93903ca3b19599ee87 100644
--- a/src/main/java/pikelake/pikes/Pike.java
+++ b/src/main/java/pikelake/pikes/Pike.java
@@ -1,8 +1,8 @@
 package pikelake.pikes;
 
 import fr.cemagref.simaqualife.pilot.Pilot;
-import Pike.Cell;
-import Pike.Individual;
+import pikelake.Cell;
+import pikelake.Individual;
 
 public class Pike extends Individual {
 
diff --git a/src/main/java/pikelake/pikes/PikePlopProcess.java b/src/main/java/pikelake/pikes/PikePlopProcess.java
index 9cb2eac1d8f55f2f40cd2591aba2c94fe1a6d739..3edb68c335a828c65f754a8dc571d22a0960ff7c 100644
--- a/src/main/java/pikelake/pikes/PikePlopProcess.java
+++ b/src/main/java/pikelake/pikes/PikePlopProcess.java
@@ -2,7 +2,7 @@ package pikelake.pikes;
 
 import fr.cemagref.simaqualife.kernel.processes.AquaNismsGroupProcess;
 
-public class PlopProcess extends AquaNismsGroupProcess<Pike,PikesGroup> {
+public class PikePlopProcess extends AquaNismsGroupProcess<Pike,PikesGroup> {
 
 	private int temporisation = 3000; // in ms