Fisheries - Enviro Dynamics Namibia

More documents

Recommendations

Info

F I S H E R I E S , M A M M A L S A N D S E A B I R D S S P E C I A L I S T S T U D Y Table 2. Impact assessment table summarizing the impact of phosphate mining on the main Namibian fisheries Nature of the impact Extent Duration Intensity Probability Final Report Namibian Marine Phosphate (Pty) Ltd. The impact on fishing operations of phosphate mining on the main Namibian fishing sectors; a) hake trawl and b) hake longline, c) monk trawl d) horse mackerel mid-water trawl, and e) small pelagic purse seine fisheries. The fishing sectors will not be able to operate in certain areas due to 1) actual mining operations due to dredging operations and vessel activities, 2) associated sediment plumes 3) exclusion zones around the mining site and 4) increase levels of maritime traffic associated with the mining operation. MLA - fishing operations will be affected in the MLA and beyond to within a 25 km boundary of the actual target mining sites SP-1, SP-2 and SP-3. Long term - the direct impact will cease once the mining activity ends after 20 years (the period for which the mining licence is issued). Thereafter the recovery of the fishing grounds and fish abundance to levels prior to the commencement of mining operations is expected to take up to 20 years (long term) Serious effects - significant impacts will occur for the duration of mining in the MLA, moderate effects are expected to occur in the long term once mining ceases (up to 20 years). Definite- consequences will occur in all instances for the duration of mining. Once mining ceases consequences are expected to occur in some instances (moderate effects) within the MLA and persist at a reduced level in the long term within the 25 km boundary zone. Status (+ or -) Negative - the impact will result in a direct loss in fishing operations in MLA Significance (no mitigation) Mitigation Significance (with mitigation) Confidence level Medium - the project design might require modification to accommodate certain fishing operations Consider options to minimise impact on fishing operations for example options with respect to spatial and temporal area closures. Medium to low High - the evaluation is based on good qualitative and quantitative, historical and current fisheries related data. Page 56
F I S H E R I E S , M A M M A L S A N D S E A B I R D S S P E C I A L I S T S T U D Y Figure 19. Hake commercial data (2004-2009). Each dot represents the position per trawl relative to the MLA. n=63351 Figure 21. Monk commercial data (2005-2010). Each dot represents the position per trawl. n=36798 Final Report Namibian Marine Phosphate (Pty) Ltd. Figure 20. Hake commercial longline data. Each dot represents the position per throw relative to the MLA. n = 4553 Figure 22. Horse mackerel commercial data (1997- 2011). Dots are the position of the last trawl per day. n=39697 Page 57
Page 3 and 4:
Final Report Namibian Marine Phosph
Page 5 and 6:
Final Report Namibian Marine Phosph
Page 7 and 8: F I S H E R I E S , M A M M A L S A
Page 11 and 12: Tables and Figures F I S H E R I E
Page 13 and 14: 1 INTRODUCTION F I S H E R I E S ,
Page 37 and 38: 4.2 TURTLES F I S H E R I E S , M A
Page 45 and 46: 5 LEGISLATION F I S H E R I E S , M
Page 47 and 48: Extent Duration Intensity/ Magnitud
Page 57: F I S H E R I E S , M A M M A L S A
Page 81 and 82: 10 CONCLUSIONS F I S H E R I E S ,
Page 85 and 86: 12 REFERENCES F I S H E R I E S , M
Page 101: F I S H E R I E S , M A M M A L S A
show all

Fisheries - Enviro Dynamics Namibia

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?