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Untitled - CNR

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BI (kg per km 2 )Y/R (g)SSB/R (g)20092008200720062005200420032002200120001999199819971996199519941993Marine research at <strong>CNR</strong>80706050Y/R_fSSB/R_f120010008004060030201000 0.1 0.2 0.3 0.40.5 0.60.70.8 0.9 1 1.1 1.2 1.3 1.41.5 1.61.7 1.81.9 24002000Factor of F cFigure 11: Spawning Stock Biomass (SSB on the left) and Yield (Y on the right) perrecruit of hake varying current fishing mortality (Fc) by a multiplicative effort factor accordingto the VIT package. The current fishing mortality corresponds to effort factorbeing 1. A vectorial M decreasing with size was used.403530MeditsGrund2520151050Figure 12: Biomass indices (BI as mean ± sd) of red shrimp from trawl surveys in theStrait of Sicily.2001

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