Research Article
Influence of Types and Doses of Fertilizer on the Physicochemical Characteristics of Water, Composition and Structure of Zooplankton Populations in Ponds
Algrient Nana Towa1*, Thomas Efole Ewoukem1, Serge Hubert Zebaze Togouet2, Georges Fonkwa1, Théophile Fonkou3, Victor Nguetsop3, Paul Zango4 and Tchoumboue1
1Laboratory of Ichtiology and Applied Hydrobiology, Faculty of Agronomy and Agricultural Sciences, Cameroon
2Laboratory of Hydrobiology and Environment, Faculty of Sciences, Cameroon
3Laboratory of Applied Botany, Faculty of Sciences, Cameroon
4Institute of Fisheries and Aquatic Sciences, Cameroon
Algrient Nana Towa, Laboratory of Ichtiology and Applied Hydrobiology, Cameroon.
Received Date: April 17, 2019; Published Date: May 16, 2019
Abstract
In order to improve fish productivity, an essay on the evaluation of the comparative effect of chicken and pig manure on the composition and structure of Zooplankton was conducted at the Application and Research farm from the University of Dschang (LN: 5º44’-5 °36 and LE: 10º06’-9 ° 85’). For this purpose, 15 ponds (5.7 x 5.7 x 1m), three doses of 0 (control); 800 and 1000kg/ha of chicken manure as well as pig dung were used. At each of the randomly selected ponds was administered one of the fertilizer doses every 7 days. Each of the doses and type of fertilizer representing a treatment was repeated three times. The physicochemical characteristics of the water and the Zooplankton population were measured every 14 days. With respect to the physicochemical characteristics of water, the values of nitrites (7.92 ± 0.05mg/l), nitrates (8.03 ± 0.24mg/l), phosphates (4.68 ± 0, 05mg/l) were significantly (p <0.05) higher in ponds fertilized at 1000kg/ha pig dung, the lowest being obtained in the control treatment. For Zooplankton, the highest specific (64.51% of total species), generics (87.87% of total genera) and families (82.35% of total) Zooplanktonic abundances were obtained in ponds fertilized at the rate of 1000kg/ha of chicken manure. The species of rotifers were the most diverse survived those of cladocerans whatever the type or the dose of fertilizer. The use of the 1000kg/ha dose of chicken droppings makes sense for a large production of Zooplankton diversity.
Keywords: Pond; Fertilization; Chicken manure; Pig dung; Zooplankton
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Algrient Nana Towa, Thomas Efole Ewoukem, Serge Hubert Zebaze Togouet, Georges Fonkwa, Théophile Fonkou et al. Influence of Types and Doses of Fertilizer on the Physicochemical Characteristics of Water, Composition and Structure of Zooplankton Populations in Ponds. Ad Oceanogr & Marine Biol. 1(4): 2019. AOMB.MS.ID.000516.
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