Hydrobiologia

, Volume 110, Issue 1, pp 315–317 | Cite as

Gill net selectivity in Lake Nubia fisheries

  • M. T. Ali
  • Y. B. Abu-Gideiril
Article
  • 40 Downloads

Abstract

The gill nets presently used in Lake Nubia fishing were subjected to a comparative study in regard to their relative efficiency. The results obtained indicate that Mesh 6 netted with Twine 4 is the most effective net, followed by Meshes 2, 4, 8 and 10 respectively.

It has also been shown that, although individual nets undergo seasonal fluctuations in CUE, this does not, substantially affect their order of merit.

The role of water characteristics on fish population distribution and subsequenct changes in the CUE was also noted.

Keywords

Sudan Lake Nubia fisheries 

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References

  1. Ali, M. T., 1975. Gill net selectivity and fish population in Jebel Aulia Reservoir. M.Sc. Qualifying Examination Dissertation to the Department of Zoology, University of Khartoum.Google Scholar
  2. Ali, M. T., 1977. Studies on gill net selectivity in Lake Nubia Fishery. M.Sc. Thesis to Department of Zoology, University of Khartoum.Google Scholar
  3. Entz, B. A. G. & Latif, A. F. A., 1974. Report on survey to Lake Nasser and Lake Nubia (1972–1973). Lake Nasser Development Centre (LNDC/RPA, UNDP, FAO). Working paper No. 6, Aswan, Egypt.Google Scholar

Copyright information

© Dr W. Junk Publishers 1984

Authors and Affiliations

  • M. T. Ali
    • 1
  • Y. B. Abu-Gideiril
    • 2
  1. 1.Fisheries and Hydrobiological Research CentreKhartoumSudan
  2. 2.Department of ZoologyUniversity of Khartoum and Red Sea CommissionJeddahSudan

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