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Aqua Case Mussel culture area- Chalastra Thessaloniki

Aqua Case Mussel culture area- Chalastra Thessaloniki. Exercise Is there an adequate availability of food for current mussel production in the culture area of Chalastra ? Sofia Galinou-Mitsoudi. The number of farm units in Chalastra gradually increased between 1995-1999.

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Aqua Case Mussel culture area- Chalastra Thessaloniki

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  1. Aqua Case Mussel culture area-Chalastra Thessaloniki Exercise Is there an adequate availability of food for current mussel production in the culture area of Chalastra? Sofia Galinou-Mitsoudi

  2. The number of farm units in Chalastragradually increased between 1995-1999. • The distance between the sockshas alwaysbeen <40 cm. • The total wet weight of cultured musselshas decreasedsince 2000 in the area. • The occurance of underfed mussels has increasedfrom theChalastra area. • The sustainability of mussel production in the area is under question. The subject

  3. To findthereason(s) for theincrease in underfed mussels in Chalastra marine environment. • To help the farmers understand why and howthey should change their practices. Questions to answer: • How does food availability in the mussel culture area compare with a reference area? • Does available food have the appropriate size and quality for mussel production? • Is there a relationship between the mussels’ underfeeding and mussel culture managment? The challenge

  4. To study feeding conditions for cultured mussels • To compare food availability in the existing mussel farm area with outside areas • To estimate the percentage of fed and underfed/unfed mussels • To understand the temporal variability of the mussel condition index for production quality. • To understand the relation between mussel farm activities and limits in the marine environment for mussel production. Learning goals

  5. MAP: Water drainage area and human activities • MAP: The size of the mussel culture activity in Chalastra and the hydrodynamism of the area • MAP: Levels of chl-a in the Chalastra mussel culture area • Spatial fluctuation of the degree of mussel stomach completeness (graph) In addition to the case the following information is supplied

  6. The water drainage area and the human activities

  7. The size of the mussel culture activity in Chalastra NCMR, 2000 with modifications

  8. The currents in mussel culture area of Chalasta for NW prevailing winds ATEITH, 2007

  9. Levels of chl-a in the musselculture area of Chalastra SoHelMe, 2005 with modification

  10. The mean total wet weight of the mussels from the Chalastra units

  11. The hydrodynamic status of the mussel culture activity • The phytoplankton species/size/biomass • The seston quantity/quality (TOC/POC) • The mussels biological cycle & condition index • The temporal & spatial changes all above • The mussels selectivity of food size • Additional Sources/References Notes for teachers

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