January 2023

Fishing in Lake Kariba

By |2022-09-15T12:34:47+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Sun drying fish on Lake Kariba. Image credit yahoo.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Lake Kariba

  • It was constructed on the Kariba gorge between 1955 and 1959.
  • The dam has produced a lake with a surface area of 5 364 km2.
  • Commercial fishing on Lake Kariba begun in 1962.

    • […]

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Fishing in other parts of Zimbabwe

By |2022-09-15T12:34:46+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

A Zimbabwean fisherman attempts to land his catch. Image credit deseretnews.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Other fisheries in Zimbabwe

  • Both commercial and subsistence fishing also takes place in Zimbabwe’s internal dams.
  • The major ones include Lake Chivero and Manyame on the Manyame river and Lake Mutirikwi on the […]
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Fish conservation

By |2022-09-15T12:34:45+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Police patrols can reduce fish poaching. Image credit flickr.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Fish conservation

  • The fishing industry in the SADC region can only be sustained if sustainable methods are employed.
  • The following methods of conservation have been put in place in the region.
  • Legislation has been enacted […]
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Aquaculture and its advantages and disadvantages

By |2022-09-15T12:34:45+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Fishing in an aquaculture pond. Image credit irinnews.org

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Advantages and disadvantages of aquaculture

  • the rearing of aquatic animals or the cultivation of aquatic plants for food
  • It is practiced in ponds, rivers, dams, lakes or even oceans
  • It is also known as aquafarming
  • The […]
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Ocean and Sea fishing

By |2022-09-15T12:34:45+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

 

Horse Mackerel. Image credit sites.google.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Fishing:Sea fishing

  • The coastal areas of southern-central Africa stretching from Tanzania, through Mozambique, South Africa, Namibia, Angola and DRC is home to several marine species including fish.
  • Fish resources are concentrated within the narrow continental shelf, a few kilometres […]
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Ocean currents and the fishing industry

By |2022-09-15T12:34:44+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Ocean currents of the world. Image credit Pearson

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Ocean currents and the fishing industry

  • Ocean currents are important in the fishing industry as they affect the growth of plankton which provides fish food.
  • Warm ocean currents restrict the growth of plankton hence give rise […]
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Sea fisheries found on the east coast of Southern Africa

By |2022-09-15T12:34:44+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Fishing on the Beira Coast in Mozambique. Image credit irinnews.org

ZIMSEC O Level Geography Notes: Natural Resources: Fishing: Sea fisheries on the east coast of Southern Africa

  • The east coast of Southern Africa is washed by warm ocean currents, like the Mozambique current and the warm Agulhas current.
  • The area therefore […]
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Sea fisheries found on the west coast of Southern Africa

By |2022-09-15T12:34:44+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Recreational fishing off the coast of Namibia. Image credit travelnewsnamibia.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Sea fisheries on the west coast of Southern Africa

  • Fisheries of the Benguela cold current system cover the area along the west coast of South Africa, Namibia and southern Angola.
  • The area on the […]
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Problems faced by the ocean and sea fishing industry

By |2022-09-15T12:34:43+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Fishing using mosquito nets along the coast of Tanzania. Image credit nytimes.com

ZIMSEC O Level Geography Notes: Natural Resources: Fishing: Problems faced by sea fishing industry

  • The sea fishing industry in Southern Africa faces a number of problems which include the following.

Over-exploitation of marine resources particularly fish.

  • Fishing has increasingly become […]
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Sea fishing methods

By |2022-09-15T12:34:43+02:00January 24th, 2023|Notes, O Level Geography, Ordinary Level Notes|

Hauling in fish during commercial sea fishing. Image credit pinterest.comg

ZIMSEC O Level Geography Notes: Natural Resources: Fishing:Sea fishing methods

  • The types of fishing methods employed in sea fishing are determined by the type of fish being exploited.
  • There are two main types of fish found in the oceans of Southern […]
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