1.1  
 Background
 of the study
 
    Aquaculture has emerged as one of the most
 promising and fast-growing food- producing sector, which provides high-quality
 animal protein, raises nutritional levels, and generates income and employment
 around the globe (FAO, 2010).According to recent data, world aquaculture
 production of food fish reached 62.7 million tonnes in 2011, up by 6.2% from 59
 million tonnes in 2010. The estimated value of farmed fish food is US$ 130
 billion. Aquaculture contributed 40.1% to the world total fish production (FAO,
 2013). Importance of aquaculture is increasing dramatically because of
 overfishing of the world's waters and exponential increase in demand for
 seafood. Sustained and enhanced productivity are the need of the hour in
 aquaculture. Various measures including different techniques such as intensive
 aquaculture, spatial and temporal expansion of aquaculture activities,
 introduction of new species for aquaculture, and improved health management
 strategies are some of the important reasons for the current steep rise in
 aquaculture productivity (Panigrahi and Azad, 2007). Nigerians are large
 consumers of fish and its remains one of the main products consumed in terms of
 animal protein. It is cheap and highly acceptable, with little or no religion
 bias,which gives it an advantage over pork or beef (Eyo, 2001). Only about 50%
 of the demand for fish is currently been met by local supply. 
Kabiru T, B. (2018). Biology And Fisheries. Afribary. Retrieved from https://afribary.com/works/biology-and-fisheries-6244
Kabiru T, Bello "Biology And Fisheries" Afribary. Afribary, 29 Jan. 2018, https://afribary.com/works/biology-and-fisheries-6244. Accessed 04 Nov. 2025.
Kabiru T, Bello . "Biology And Fisheries". Afribary, Afribary, 29 Jan. 2018. Web. 04 Nov. 2025. < https://afribary.com/works/biology-and-fisheries-6244 >.
Kabiru T, Bello . "Biology And Fisheries" Afribary (2018). Accessed November 04, 2025. https://afribary.com/works/biology-and-fisheries-6244