ICES Advice 2006, Book 7 - Bay of Biscay and Atlantic Iberian Waters

7 BAY OF BISCAY AND IBERIAN SEAS 1

7.1 Ecosystem Overview 1

7.1.1 Ecosystem Components 1

7.1.2 Major environmental influences on ecosystem dynamics 8

7.2 The human impacts on the ecosystem 8

7.2.1 Fishery effects on benthos and fish communities 8

7.2.2 Pollution 9

7.3 Assessments and Advice 14

7.3.1 Assessments and advice regarding protection of biota and habitats 14

7.3.2 Assessments and advice regarding fisheries 14

7.4 Stock summaries. 24

7.4.1 Hake-Southern stock (Division VIIIc and IXa excluding the Gulf of Cadiz) 24

7.4.2 Megrim (L. boscii and L. whiffiagonis) in Divisions VIIIc and IXa 35

7.4.3 Anglerfish in Divisions VIIIc and IXa (L. piscatorius and L. budegassa) 47

7.4.4 Southern horse mackerel (Trachurus trachurus) (Division IXa) 56

7.4.5 Sardine in Division VIIIc and IXa 60

7.4.6 Anchovy in Subarea VIII (Bay of Biscay) 69

7.4.7 Anchovy in Division IXa 75

7.4.8 Nephrops in Divisions VIIIa,b (Management Area N) 79

7.4.9 Nephrops in Divisions VIIIc (Management Area O) 87

7.4.10 Nephrops in Divisions IXa (Management Area Q) 94

7.4.11 Sole in Divisions VIIIa,b (Bay of Biscay)