Makeche Mauris Chinyama

Oreochromis fish species stock assessment

Growth and mortality of mouthbrooding tilapiines of the Kafue Floodplain Fishery of Zambia

• Broschiertes Buch

Produktbeschreibung

The book endeavors to explain why Oreochromis fish catches from the Kafue Floodplain Fishery are reducing. Growth and mortality of Oreochromis andersonii, Oreochromis macrochir and Oreochromis niloticus of the Kafue Floodplain fishery were investigated between September, 2015 and November, 2015. This study was aimed at investigating the growth and mortality of mouth brooding tilapiines of the Kafue Floodplain fishery. Three stations that represent the major ecological habitats of the Kafue Floodplain fishery were selected. These were: Kafue Road Bridge (swamp), Namalyo (lagoon) and Kakuzu (riverine).Fish specimens were collected using gillnets that were set in the evening and hauled the next morning. Length measurements were taken from each fish specimen using a fish measuring board. Weight was measured using a kitchen balance to the nearest one gramme. Oreochromis macrochir had the largest fishing mortality coefficient (F) of 1.24 while Oreochromis andersonii showed the smallestfishing mortality coefficient of 0.21. This implies that the decrease in fish catches in the Kafue Floodplain fishery cannot be attributed to over-fishing but may be due to natural mortality.

Produktdetails

• Verlag: LAP Lambert Academic Publishing
• Seitenzahl: 104
• Erscheinungstermin: 2. April 2020
• Englisch
• Abmessung: 220mm x 150mm x 7mm
• Gewicht: 173g
• ISBN-13: 9786202520836
• ISBN-10: 6202520833
• Artikelnr.: 59347381

Autorenporträt

The author graduated from the University of Zambia with a BSc and MSc in Biology. He is currently working as a Biology Lecturer at Levy Mwanawasa Medical University. Mr. Makeche is currently pursuing a Doctor of Philosophy (PhD) in Science (Fisheries and Hydrobiology) at the University of Zimbabwe.