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The fisheries in
 the Volta
 and Niger basins




Cali fisheries Feb 2008
Inland Delta
                                 Middle Niger



Upper Niger


                                              ...
Fisheries in the Niger basin


   Inner delta :
          20 000 km2
          90 000 to 45 000 tonnes/year with rainfall ...
The Volta basin




Cali fisheries Feb 2008
The Volta basin,       ,
                          with its seasonnally
                          dry rivers




Cali fish...
Lake Volta :
a major component of
the aquatic system

8500 km2,
about 140 km3 (three years
residence time),
and uncertaint...
Fisheries Lake Volta, present state (1998) (from Braimah, 2000)
1232 fishing villages
71861 fishermen depending on fishing...
Cali fisheries Feb 2008   Bamboo traps for Chrysichthys, Lake Volta
Gillnets, Lake Volta
Cali fisheries Feb 2008
Cali fisheries Feb 2008
                          Fish traps, Lake Volta
60 000          Reference
                   scenario
   50 000          Wetter scenario

   40 000          Drier scenari...
Fisheries in the Volta basin

  Kompienga,
                    15 000 ha, 1350 tonnes/y 90 kg/ha/y

  Bagré,
             ...
Cali fisheries Feb 2008
Five Mali traps, part of the gear of a small fisherman
Cali fisheries Feb 2008
The poor in the Volta basin ( two first quintiles)
    in the different activities


    Same description for all three ac...
A typical mid-size canoe,
With a crew of two men
on Lake Volta




  Cali fisheries Feb 2008
The fisheries
Where,
         - in large lakes : Volta, Bagré, Kompienga; Selingué, Kainji, Lagdo
         - in smaller re...
Other modes of fish production
          - advanced fishculture (Lake Volta)
          - small scale fish culture (coopera...
Lake Volta PN 34 cage experiment, March 2007

 Cali fisheries Feb 2008
Smoking fish, a women activity
Cali fisheries Feb 2008
CP projects on fisheries in the basins


             - Ongoing    PN 34 on Lake Volta
                      Redirected to...
Cali fisheries Feb 2008
Thank you




Cali fisheries Feb 2008
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The fisheries in the Volta and Niger basins

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Presented at the Basin Focal Project Fisheries Workshop at Cali, Colombia, Feb 2008

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Transcript of "The fisheries in the Volta and Niger basins"

  1. 1. The fisheries in the Volta and Niger basins Cali fisheries Feb 2008
  2. 2. Inland Delta Middle Niger Upper Niger Lower Niger The Niger major sub-basins Cali fisheries Feb 2008
  3. 3. Fisheries in the Niger basin Inner delta : 20 000 km2 90 000 to 45 000 tonnes/year with rainfall change 1500 m3/S mean discharge to 750 m3/s with rainfall change Total basin 300 000 tonnes/year, increasing since 1995 with rainfall Cali fisheries Feb 2008
  4. 4. The Volta basin Cali fisheries Feb 2008
  5. 5. The Volta basin, , with its seasonnally dry rivers Cali fisheries Feb 2008
  6. 6. Lake Volta : a major component of the aquatic system 8500 km2, about 140 km3 (three years residence time), and uncertainty about the fisheries production Circa 70 000 fishermen Fishing = diversification from MODIS data base Cali fisheries Feb 2008
  7. 7. Fisheries Lake Volta, present state (1998) (from Braimah, 2000) 1232 fishing villages 71861 fishermen depending on fishing for livelihood ( full time ?) gillnets 98.7 %, hookand line 62 %, cast net 46 %, winch (purse seine) 9. No canoe owner has more than 1 large canoe. outboard engines : 973 in 308 villages fishing days/week = 6 to 7, but 50 festival days /year. In stratum 7, 13 % of the catch is consumed locally. Winch nets : 447 atigyas : 3500 bamboos : 4,180,630 beach seines : 10895 cast nets : 8972 gillnets : 998,250 hooks : 7,915,170 nifa nifa : 5700 traps : 338,667 winch nets : 447 wangara : 6046 Cali fisheries Feb 2008
  8. 8. Cali fisheries Feb 2008 Bamboo traps for Chrysichthys, Lake Volta
  9. 9. Gillnets, Lake Volta Cali fisheries Feb 2008
  10. 10. Cali fisheries Feb 2008 Fish traps, Lake Volta
  11. 11. 60 000 Reference scenario 50 000 Wetter scenario 40 000 Drier scenario 30 000 20 000 10 000 0 0 2 4 6 8 10 12 14 16 18 20 22 Year of simulation Inflows to Akosombo as simulated by WEAP in the three scenarios. The main variability remains dependent on the year to year rainfall variations. Cali fisheries Feb 2008
  12. 12. Fisheries in the Volta basin Kompienga, 15 000 ha, 1350 tonnes/y 90 kg/ha/y Bagré, 18 000 ha, 1200 tonnes/y, 700 fishermen + aids 66 kg/ha/y Cali fisheries Feb 2008
  13. 13. Cali fisheries Feb 2008
  14. 14. Five Mali traps, part of the gear of a small fisherman Cali fisheries Feb 2008
  15. 15. The poor in the Volta basin ( two first quintiles) in the different activities Same description for all three activities : - lack of production means, = lack of productivity per person involved - vulnerability (no safety net) - need for emigration (short or long) - little credit available or accessible (from sustainable livelihood profiles) Cali fisheries Feb 2008
  16. 16. A typical mid-size canoe, With a crew of two men on Lake Volta Cali fisheries Feb 2008
  17. 17. The fisheries Where, - in large lakes : Volta, Bagré, Kompienga; Selingué, Kainji, Lagdo - in smaller reservoirs - in flood plains or “ lit majeur”: Niger Inner delta, upper Niger, - in the rivers The fisheries ecosystem : up and downstream as well as lateral Components By whom, Local or traditional ethnic groups Needs man ( or boy) power: hiring children labour for gillnets, beach seines and winchnets. Cali fisheries Feb 2008
  18. 18. Other modes of fish production - advanced fishculture (Lake Volta) - small scale fish culture (cooperative ?) (Nigeria) Cali fisheries Feb 2008
  19. 19. Lake Volta PN 34 cage experiment, March 2007 Cali fisheries Feb 2008
  20. 20. Smoking fish, a women activity Cali fisheries Feb 2008
  21. 21. CP projects on fisheries in the basins - Ongoing PN 34 on Lake Volta Redirected to cage culture with a socio economic survey - Starting PN 72 on the Niger Participatory diagnosis and adaptive management of small-scale fisheries in the Niger River Basin. Brief Title: Improving resilience in small-scale fisheries. Cali fisheries Feb 2008
  22. 22. Cali fisheries Feb 2008
  23. 23. Thank you Cali fisheries Feb 2008
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