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Drawing on extant technology acceptance literature, the purpose of this paper is to critically examine the impact of mandatory enterprise technology adoption in Nigeria.

Data were gathered from a survey of stockbrokers operating on the floor of the Nigerian Stock Exchange on two occasions over a four year period. Expert forecasting (TSModel) algorithms were employed to assess attitudinal changes of users on mandatory system adoption.

The results suggest that over time, users (stockbrokers) developed an increasingly negative perception of the technology, thus emphasising the need for managers to focus on subjective imperatives that might impact the adoption of mandated technology.

Africa remains neglected in relation to information systems/information technology (IS/IT) research. This has driven the authors’ interest in seeking to understand how contextual peculiarities specific to Africa could play a significant role in an understanding of well‐established IS/IT models.

To facilitate deeper explorations of the antecedents of user adoption of mandatory enterprise technology, the authors choose to lay the theoretical foundations of this study in social theories (specifically, voluntariness and subjective norm).

This paper aims to take a critical review of traditional fish processing in Nigeria.

A critical review of traditional fish processing in Nigeria was undertaken.

Fish is one of the protein foods that need careful handling. Due to poor handling, about 30-50 per cent of fish harvested are wasted in Nigeria. This study was therefore carried out to review fish processing technologies and evaluate the effectiveness, energy sources and efficiency of fish processing equipment used, quality and safety of processed fish products and possible improvement. Studies revealed that the fish when brought aboard is usually more or less alive, stored simply on the bottom of the canoe and lying there in a pool of warm, dirty water. The fish is never gutted and freely exposed to the sun, and better handling practices would help in developing a fresh fish export trade toward the larger towns in the north and south. Several studies revealed that fish smoking still remains the main method of fish preservation in Nigeria as over 70 per cent of the catch is smoked. The quality of smoked fish from Nigeria has been found to be within acceptable quality limits specific by various regulatory agencies. However, findings have revealed microbial contamination and the presence of polycyclic aromatic hydrocarbons in some of the smoked fish which values exceed the EU recommended maximum permissible level of 5.0 μg/kg for benzo[α]pyrene.

Few available literatures on the subject matter were critically reviewed.

The paper helps in creating opportunities for more in-depth research in fish processing in Nigeria.

This research is of value to the researchers in Nigeria and other tropical countries.

This study aims to assess and compare the quality and safety of street-vended, ready-to-eat fried and smoked West African Ilisha fish from the major markets in Ibadan, Oyo State, Nigeria.

A total of 50 samples each were obtained from ten major markets in Ibadan, Oyo State, Nigeria. Samples were analyzed in the laboratory for proximate, rancidity indices; i.e. peroxide value (PV), thiobarbituric acid (TBA), total volatile base-nitrogen (TVB-N), trimethylamine acid (TMA) and free fatty acid (FFA), polycyclic aromatic hydrocarbon (PAH) and heavy metals.

The results showed that the mean PV (meq. peroxide/kg), TBA (mg Mol/kg), TVB-N (mgN/kg), TMA (mgN/kg) and FFA (%) contents within the fried fish samples ranged from 18.86-23.11, 2.08-2.98, 14.89-17.79, 1.98-2.89 and 2.46-5.98, respectively, while in the case of smoked fish samples, the corresponding contents were found to be 9.03-15.96, 1.03-1.59, 17.29-19.36, 2.15-2.68 and 1.13-1.62, respectively. The results also revealed the presence of PAH compounds in the fried and smoked fish samples. However, majority of the PAH compounds were above 5.0 μg/kg B(a)P maximum permissible levels set by EU Regulation 1881/2006. Concentrations of Hg, Pb, Cd and Cr in the fried and smoked fish samples showed that quantities of these trace heavy metals were below the recommended limits set by the World Health Organization and hence posed no risk to the consumers. The study concluded that consumption of fried and smoked fish may expose consumers to high-level PAH.

The fried and smoked West African Ilisha fish samples used in this study were obtained from major markets in Ibadan, Oyo State, and there were limitations in getting the same samples with the same treatments in time because of poor and non-established uniform methodology of frying and smoking.

The paper helps in measuring quality and safety standards of fried and smoked fish products to reduce the incidence of food poison and enhance the health of consumers.

This research is of value to the traditional fish processors, government agencies responsible for food quality control and assurance as well as consumers, as little work has been done on this product.

The purpose of this paper is to assess the information needs and accessibility for fish farmers in the Southern high lands of Tanzania.

Both quantitative and qualitative methods were used. Semi-structured interviews were used to collect qualitative and quantitative data from 240 fish farmers in six selected districts from three regions in Southern high lands of Tanzania. Focus groups and key informants’ interviews were also used to collect qualitative data from 54 fish farmers in the selected districts.

Findings indicated that fish farmers highly needed information related to water treatment (management), spawning operations and fish preservation and processing. However, it was found that access to these categories of information was very low. In addition, findings indicated that age, education and income have a statistical significant and positive relationship with farmer’s information accessibility at p < 0.05. On the other hand, age, amount of fish harvested, education and farming experience had statistical significant and negative relationship with farmer’s information at p < 0.05.

The study provides a deep understanding of information needs and accessibility for fish farmers in the in Southern high lands of Tanzania, which will be assisting in in designing focused, need-based and user-oriented information infrastructure in fish farming.