Acronym Contaminants in crab
Category
Fisheries
Title Investigation of contaminants in edible crab (Cancer pagurus) Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Kåre Julshamn Coordinator email kju@nifes.no; kaare.julshamn@nifes.no
Coordinator institution
NIFES - National Institute of Nutrition and Seafood Research (Norway)
Institutions involved
NA
Start year NA End year NA Funding (€) € NA Website NA Summary In this survey, crabs (Cancer pagurus) were thoroughly investigated for the content of contaminants. The crabs were collected from 47 positions, a total of 475 individual crabs, along the coast of Norway from Hvaler in the southeast to Bø i Vesterålen in the north, between 20. of July 2011 to 19. of January 2012. Crab samples were mainly taken with pots. Samples of both claw meat and brown meat were collected from each crab. Claw meat were analysed for cadmium, mercury, lead, total arsenic and a few samples were analysed for inorganic arsenic, PBDE and perfluorinated compounds (PFCs). Brown meat of crab were analysed for cadmium, mercury, lead, total arsenic, dioxins, furans, dioxin-like PCBs, non-dioxin-like PCBs, PBDEs and fat content and some samples were also analysed for inorganic arsenic and PFCs. Cadmium content of claw meat and in brown meat are of greatest interest with regards to food safety, as they have shown to be high. The results showed that the concentrations in both the claw meat and brown meat were significantly higher in northern Norway than in the south. The average concentration for cadmium in claw meat sampled from positions north of Saltfjorden varied from 0.29 to 1.3 mg/kg wet weight and from 6.7 to 25 mg/kg wet weight in the brown meat. The average concentration for cadmium in claw meat sampled from positions south of Saltfjorden varied from 0. 027 to 0.28 mg/kg wet weight and from 0.55 to 4.8 mg/kg wet weight in the brown meat. North of Saltfjorden, only two sites, Verøyflaget (Bø in Vesterålen) and Nesjeøyan east of Eggum (Vestvågøy) showed an average cadmium concentration in the claw meat lower than 0.5 mg / kg wet weight, which is the EU and Norway's maximum level for cadmium content in claw meat of crab. Our results have resulted in dietary advice in Northern Norway. As, Cd, Hg, Pb, dioxins, dioxin-like PCBs, non-dioxin like PCBs, PBDE and PFAS were determined in claw meat and brown meat of 475 crabs from 47 positions along the Norwegian coast. Cadmium content of claw meat and brown meat are of great interest. The results showed that the concentrations in both the claw meat and brown meat were significantly higher in northern Norway than in the south.
Keywords
Crab;
Impacts;
Toxic substances;
Crustacean;
Shellfish;
Food safety;
Marine Region
41
Norwegian Sea (27.IIa)
14
Skagerrak, Kattegat (27.IIIa)
13
Northern North Sea (27.IVa)
3
Marine Region Map
