using a modified Nordmore grid
to sort out blue whiting and boarfish in a crustacean fishery
Target species:
Nephrops, rose shrimp and red shrimp
Area, Vessel
41 hauls were carried out in crustacean fishing grounds on the Portuguese south coast onboard the RV Noruega (47.5m, 1500 HP) during May 2001.
Nephrops, rose shrimp and red shrimp
Area, Vessel
41 hauls were carried out in crustacean fishing grounds on the Portuguese south coast onboard the RV Noruega (47.5m, 1500 HP) during May 2001.
Gear type:
demersal
Gear modification
Using a modified Nordmore grid with a lower opening passage and a guiding funnel. The system was designed to sort out fish bycatch while retaining crustaceans.
demersal
Gear modification
Using a modified Nordmore grid with a lower opening passage and a guiding funnel. The system was designed to sort out fish bycatch while retaining crustaceans.
Results:
Catches of blue whiting and boarfish were reduced by 75 and 48%. The marketable losses of rose shrimp and Nephrops were 3.7% and of red shrimp 5.7%.
Catches of blue whiting and boarfish were reduced by 75 and 48%. The marketable losses of rose shrimp and Nephrops were 3.7% and of red shrimp 5.7%.
Further information:
Aida Campos – acampos@ipma.pt Paulo Fonseca – pfonseca@ipma.pt
Aida Campos – acampos@ipma.pt Paulo Fonseca – pfonseca@ipma.pt
Citation :
Campos, A. and Fonseca, P.
, 2017.
using a modified Nordmore grid
. In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.