|
|
Poisonous mussels?
There are specie of plant plankton that are sometimes poisonous,
mainly specie of blue-green bacteria and dinoflagellates. The blue-green
bacterias occur mainly in freshwater and the brackish waters of the
Baltic and therefore believed not to be a threat against Swedish mussel
farms, but this has to be studied more closely if mussel cultivation
is contemplated in the Baltic.
Dinoflagellates are abundant in the Skagerrak, Kattegat
and Öresund regions. During the autumn blooms, plant plankton
dominate. Those dinoflagellates that pose a serious problem for mussel
farms are those specie of the Alexandrium, Prorocentrum
and Dinophysis families.
The dinoflagellate Dinophysis acuta. Photo
från:
Databas
med plankton från Skagerrak och Kattegatt.
|