developing a suction dredge in the Iceland scallop dredge fishery
to reduce impact in the Iceland scallop dredge fishery
Target species:
Iceland scallop (Clamys islandica)
Area, Vessel
Several prototypes were developed and tested in Icelandic coastal waters
Iceland scallop (Clamys islandica)
Area, Vessel
Several prototypes were developed and tested in Icelandic coastal waters
Gear type:
demersal
Gear modification
After initial tests, suction was identified as the preferred harvesting method. Motors were used to suck seawater through piping mounted on a towed sled. They were then deposited in a retention bag.
demersal
Gear modification
After initial tests, suction was identified as the preferred harvesting method. Motors were used to suck seawater through piping mounted on a towed sled. They were then deposited in a retention bag.
Results:
Scallops were successfully lifted and retained. Little observable sediment displacement. Limited by-catch. There was no observed damage to target and non-target species. Further work on vessel speed and operational parameters needed.
Scallops were successfully lifted and retained. Little observable sediment displacement. Limited by-catch. There was no observed damage to target and non-target species. Further work on vessel speed and operational parameters needed.
Further information:
Georg Haney (georg@mfri.is)
Georg Haney (georg@mfri.is)
Citation :
, 2017.
developing a suction dredge in the Iceland scallop dredge fishery
. In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.