Monday, March 6, 2017

Research Update Kamutjonga Inland Fisheries Institute: 2016/17

Ongoing floodplain research
The Directorate of Aquaculture and Inland Fisheries (DoAIF) in the Ministry of Fisheries and Marine Resources (MFMR) in Namibia is spearheading several inland fisheries research innitiatives. Most notable was the development of the Standard Operating Procedure for Inland Fisheries Research by inland fisheries scientist of the DoAIF. A  word of thanks to Mr. Francois Jacobs from Kamutjonga Inland Fisheries Institute (KIFI) who played a mojor role in the drafting of this SOP and also other staff members of the DoAIF that contributed with meaningful comments.  Kamutjonga Inland Fisheries Institute is responsible for all inland fisheries research data and have recently captured, cleaned and archived biological survey data from 1992 up to 2017 for all the main river systems which includes the Zambezi, Kwando, Kavango and Kunene Rivers. This data plays an important role in determining trends of fish population dynamics in these rivers over time. Research data is crucial for management intervention to protect the biodiversity of our riverine systems and inland waterbodies. The DoAIF disseminate on an annual basis research findings to stakeholders of our inland fisheries resources. Stakeholder workshops ferment and digest research results and formulate resolutions  towards the sustainable management of the resource. To this effect the MFMR  announced through government notice in Gazette No 6197, three resource  management interventions namely;

1. Government notice No 296: "Prohibition of issuing of licences for monofilament nets to be used as regulated fishing gear"Inland Fisheries Resource Act, 2003
2Government notice No 297: "Declaration of Zambezi/Chobe River System as an inland fisheries reserve"Inland Fisheries Resource Act, 2003
3. Government notice No 298: "Declaration of Kasaya Channel in Impalila Conservancy as fisheries reserve"Inland Fisheries Resource Act, 2003

Mr. Richard Thinyemba a labourer at KIFI receiving his certificate at KIFI from the Deputy Director, Mr. Burger for the best research presentation at the Aquaculture and Inland Fisheries Science Forum that was held at Hardap Dam during August 2016. He presented the findings of the floodplain research at KIFI during 2016

KIFI Inland Fisheries researchers, Mr. Fancois Jacobs, Ms, Naomi Lubala and Deon Tiyo busy entering and cleaning research data for archiving in the KIFI database
Inland fisheries biological research data  ready for archiving at  KIFI and other Inland fisheries centers

The DoAIF is currently engaged with six major and numerous smaller fisheries research studies. Our work relies on strong interdisciplinary relationships and academic collaborators include:
·         University of Namibia (UNAM)
·         Namibian University of Science and Technology (NUST)
·         University of KwaZulu-Natal (UKZN), South Africa
·         South African Institute for Aquatic Biodiversity (SAIAB)
·         Norwegian Institute for Nature Research (NINA)
·         National Commission on Research Science and Technology (NCRST)
One of the 5 articles published in a major fishing magazine
Major studies:
1.      The behavioural ecology of socio economic important fish species in the Kavango River.
2.      The importance of fish protected areas for sustainable utilization of fish resources (Documenting fish abundances in protected vs non protected areas)
3.      Monitoring fish production in floodplains
4.      Floodplain fish harvesting trends during the annual flooding period
5.      Monitoring fish trends and abundances in all the major river systems
6.      The effect of different stocking ratio’s on fingerling production from Oreochromis andersonii

Johan Burger (research assisting Sport fishermen) with a big female Tiger Fish (+6kg) shortly after tagging. Fish only momentarily lifted (3 seconds) for photo before release. This fish was tracked several hundred km's upstream from its release site in Mahangu Park
Pictures above: Monitoring of radio tagged fish by small plane along the entire lenght of Kavango River in Namibia
Some of the smaller studies currently running include:
1.     Tag retention and growth formulation of socio economic fish species found in the Kavango River
2.      Assessing the current status of local fisheries and fish marketithe OkavangRiver in Namibian
3.      The physical forming of floodplains
4.      Habitat preference of freshwater fish species in floodplains.
5.      Species composition during the annual flood pulse

    Small Aquaculture studies:

  •     Fry productionin Threespot Tilapia stocked in Hapas at Different Sex Ratios

Research notice displayed at lodges and main centers along the Kavango River

The following popular articles were published during  2016/2017:
  1. Jacobs, F.J. 2017. Keep fighting the good fight (New laws and regulations for the Zambezi River to ensure sustainable fisheries). The complete fly fisherman. 252: 6 pp.
  2. Jacobs, F.J. and Jacobs R. 2017. The fast and the Furious (Scientific proof on where and how to target tigerfish). Africa’s Original Flyfishing magazine. 30: 40-45 pp.
  3. Jacobs, F.J. 2016. Opgedroogte en lee damme: Wat word van ons visse? Republikein. 2 December: 8-9 pp.
  4. Jacobs, F.J. 2016. Even the skies are not safe (Tigerfish the ultimate predator). The complete fly fisherman. 249: 38-44 pp. 
  5. Jacobs, F.J. 2016. Reuse-navorsings projek oor varswater visse begin. Republikein. 8 June: 3 pp.
  6. Jacobs, F.J. 2016. Namibia takes pride in freshwater fisheries resources. Tight Lines. 678: 8-9 pp.
  7. Jacobs, F.J. 2016. Tagging tigerfish in the Kavango River. Africa’s Original Flyfishing magazine. 29: 156.

Inland fisheries research article above published by Mr. Francois Jacobs in the ever popular "Stywe Lyne" sportfishing magazine,below in the Flyfishing magazine and the Republikein 

Directorate of Aquaculture and Inland Fisheries Scientific Conference contributions 2016
1.      Jacobs, F.J. 2016.  The behavioural ecology of Hydrocynus vittatus in the Kavango River. Ministry of Fisheries and Marine Resources Annual Science Forum: 16- 17 August 2016, Hardap Inland Aquaculture Centre.
2.      Khaebeb H. and Jacobs F.J. 2016. The trends of fish populations in the Zambezi Rover over the past 5 years. Ministry of Fisheries and Marine Resources Annual Science Forum: 16- 17 August 2016, Hardap Inland Aquaculture Centre.
3.      Libala, N., and Jacobs F.J. 2016. Preliminary findings of floodplain fish monitoring in the Kavango River, Kamutjonga. Ministry of Fisheries and Marine Resources Annual Science Forum: 16- 17 August 2016, Hardap Inland Aquaculture Centre.
4.      Kombada. H. 2016. The effects of rearing units on the survival and growth rate of African catfish fingerlings during winter. Ministry of Fisheries and Marine Resources Annual Science Forum: 16- 17 August 2016, Hardap Inland Aquaculture Centre.
5.      Burger. R.D. Aquaculture and Inland Fisheries in Namibia 2016. Ministry of Fisheries and Marine Resources Annual Science Forum: 16- 17 August 2016, Hardap Inland Aquaculture Centre.
6.      Thinyemba, R and Jacobs, F.J. 2016. Preliminary findings of the annual floodplain harvest in the Kavango River, Namibia. Ministry of Fisheries and Marine Resources Annual Science Forum: 16- 17 August 2016, Hardap Inland Aquaculture Centre. (AWARDED BEST PRESENTATION OF THE CONFERENCE)

Maintenance and Repair

Pictures above: Hippo dammage. Mr. Burger repairing the Hippo damage to his boat.

KIFI has a deep rural setting therefore staff service (wheel bearings+oils+plugs+impeller) their boats personnally to prevent delays in research as demonstrated by Mr. Burger  


Pedro Bueno said...

Renier... pleasure and instructive to read the post. Tiger fish is now sort of endangered? Watch the hippos! Warm regards.

Renier Burger said...

Hi Pedro...thank you...fortunately Tiger Fish is not endangered...the Nembwe (Serranochromis robustus) is serously endangered and we are looking at management measures to protect it...