Shellfish test

9 important questions on Shellfish test

How do shellfish deal with periods of low food concentration?

They depend on storages of glycogen

What happens with non-ingested material in mussels?

It is packed in mucus and rejected through inflow siphon or mantle as pseudofaeces

From which organ is the haemolymph collected?

From the adductor muscle
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How many gills does a mussel have?

4 gills

To what ecosystem service categories do biodiversity and bioremediation belong?

  • Biodiversity belongs to supporting services
  • bioremediation belongs to regulating services

How can shellfish reefs protect coastal areas?

  • It reduces waves
  • it increases sedimentation

What is the difference between biodiversity on culture plots compared to wild mussel beds?

Biodiversity is higher on cultivation plots because of high salinity conditions in production areas

How does oviparous reproduction take place in shellfish?

Gametes are shed directly into the water, where fertilization takes place

Are mussels the most important shellfish species for commercial production in Europe?

Yes they are

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