The Canary Islands archipelago and its surrounding waters are part of the Canary region, which is located on the eastern edge of the subtropical gyre of the North Atlantic and is bathed by the Canary current fed by the Azores current (Fiekas et al., 1992). The Canary Islands act as a barrier to the Canary Current and the trade winds which introduce strong variability in the atmospheric and oceanic flows, giving rise to mesoscalar oceanographic processes, such as eddies and warm wakes, to leeward of the islands (Mittelstaedt, 1991, Hernández-Guerra et al., 1993; Arístegui et al., 1997; Barton et al., 1998). On a biological level, these phenomena entail an increase in planktonic production. Likewise, the water masses from the Northwest African upwelling displaced offshore towards the Canary Islands by the Ekman transport and the upwelling filaments may reach the eastern part of the Canary region. Consequently, this region straddles the transition between the cool, nutrient-rich waters of the coastal upwelling regime and the warmer, oligotrophic waters of the open ocean (Barton et al., 1998). All of this results in variability of the oceanographic conditions in the Canary region, both in a longitudinal and a latitudinal sense. Thus, it is expected that the effects will be manifested at the biological level, affecting the whole trophic chain.

Other resources: Stock de Sardinelles and Sardines 26º15'-28º17'.

All year long

Environmental limitations: Strong trade winds during the summer

1 fishing day

mains port of each island

Local consumption

Local markets of Canary Islands

Law 6/2007, 13 April, modification of the law 17/2003, 10 April (BOC 77, 23/4/2003; BOE 162, 8/7/2003), of Fishery in Canaries (BOC 78, 19/04/2007; BOE 124, 24/05/2007). Management measures of the Spanish purse seiners in Canary Islands are included in the “Law if the Fishery” of the Canaries (BOC 78, 19/04/2007; BOE 124, 24/05/2007).