IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Avoiding molluscan shellfish toxicity by lowering mussel plant below the pycnocline
Bøhle, B.; Dahl, E.; Yndestad, M.; Langeland, G. (1989). Avoiding molluscan shellfish toxicity by lowering mussel plant below the pycnocline, in: De Pauw, N. et al. (Ed.) Aquaculture: a biotechnology in progress: volume 1. pp. 287-293
In: De Pauw, N. et al. (Ed.) (1989). Aquaculture: a biotechnology in progress: volume 1. European Aquaculture Society: Bredene, Belgium. ISBN 90-71625-03-6. 1-592 pp., more

Available in Authors 
Document type: Conference paper

Keyword
    Marine

Authors  Top 
  • Bøhle, B.
  • Dahl, E.
  • Yndestad, M.
  • Langeland, G.

Abstract
    A catamaran type of raft equipped with a hydraulic winch was constructed. Frames with mussels could be lowered and raised separately up to 3m above the sea surface in order to destroy predators and fouling organisms. The total capacity of the raft was 15t of mussels. Toxic mussels which were lowered in June to a depth of 30m, in a water layer with a low concentration of toxic algae, remained toxic until December. The meat content of these mussels decreased gradually during this period, but increased when lifted to the surface water. It is concluded that due to low temperature and poor nutrient conditions, ie low phytoplankton concentrations, below the pycnocline, the activity of the mussels was low. They retained the toxins as a result of the low metabolic rate.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors