Mussel Module

Mussel Test

1.1 Identify the scientific name of the Greenshell mussel. *

1.2 Describe the distinguishing features of the Greenshell mussel. Range evidence is required for three features. *

1.3 Describe the habitat of the Greenshell mussel. *

1.4 Describe the geographical locations of Greenshell mussel marine farms. Range evidence is required for three farm locations. *

2.1 Locate and identify the exterior anatomical features of a Greenshell mussel. Range left and right shell, periostracum, byssus (beard). *

2.2 Locate and identify the interior anatomical features of a Greenshell mussel. Range foot, gills, labial palps, adductor muscle, gut, gonad, mantle. *

2.3 Describe the function of each anatomical feature. Range left and right shell, periostracum, byssus (beard), foot, gills, labial palps, adductor muscle, gut, gonad, mantle. *

2.4 Determine the sex of the Greenshell mussel. *

3.1 Describe what occurs at each stage of the life cycle of the Greenshell mussel. Range stages include – egg, sperm, trochophore, veliger, spat, juvenile, adult. *

3.2 Describe the feeding method and food source at each life cycle stage. Range stages include – egg, sperm, trochophore, veliger, spat, juvenile, adult. *

3.3 Describe what occurs at each stage of the reproductive cycle. Range gonad development, natural triggers for spawning. *

4.1 Describe methods of measuring the growth of the Greenshell mussel. Range evidence of at least two methods is required *

4.2 Describe factors that can affect the growth, and the impact of each factor on the growth of the Greenshell mussel. Range growth factors may include but are not limited to – water temperature, water quality, food quality, food availability, mussel age, stress; evidence of at least four factors is required. *

5.1 Describe abnormal features and/or behaviours that could indicate a potential health issue with the Greenshell mussel. Range evidence of five abnormal features and/or behaviours is required. *

5.2 Describe the action to take if abnormal features and/or behaviours are identified and the reasons why this action is important. Range evidence of two reasons is required. *

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