UNILAG don seeks sustainable aquaculture, others 

It was entitled:  "Fisheries: Nature’s Gift to Humanity—Coalescing Aquatic Environment Conservation with Sustainable Fish Production".

Drawing from decades of pioneering research in aquaculture, aquatic toxicology, and environmental sustainability, the professor described fisheries as a vital natural resource capable of strengthening food security, driving economic development, and maintaining ecosystem stability.

He noted that fisheries management must strike a careful balance between scientific innovation and environmental stewardship to ensure long-term sustainability. According to him, modern aquaculture practices must align with conservation principles to safeguard aquatic resources for future generations.

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A major highlight of the lecture was his research on aquaponic optimisation, an integrated system that combines fish and plant production, particularly suited for urban and peri-urban environments. He noted that this model offers a sustainable framework for maximizing limited space and resources, thereby contributing significantly to Nigeria’s food security goals.

Ayoola also presented findings on sex-reversal techniques in Sarotherodon melanotheron and other fish species across freshwater and brackish environments. He explained that the research has improved broodstock management, accelerated growth rates, and enhanced aquaculture productivity.

Beyond fish production, he explored the culture potential of fish, crustaceans, and molluscs found in Nigeria’s coastal waters, identifying several underutilised species suitable for mariculture development. This, he said, could expand the frontiers of aquaculture diversification in the country.

His contributions to fish health management were also highlighted, particularly the use of probiotic bacteria as natural growth promoters and immune stimulants in Clarias gariepinus. The approach, he noted, improves fish health, reduces disease occurrence, and minimizes reliance on synthetic antibiotics in aquaculture operations.

In the area of aquatic ecotoxicology, Ayoola detailed studies examining the cytogenetic and biochemical effects of agrochemicals, heavy metals, and petroleum pollutants on aquatic organisms. His investigations across the Lagos Lagoon, Ogun River, and Ogoni ecosystems have established critical biomarkers for monitoring environmental contamination and informing policy responses.

He also highlighted milestones in fish hatchery management, sustainable aquaculture systems, the use of agro-waste in fish feed production, and pollution management strategies.

The don described fisheries as both a divine and scientific gift to humanity, stressing that responsible utilisation of aquatic resources will enhance food security, promote environmental sustainability, and support livelihoods.