Water quality

Content related to water quality.

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Inland saline aquaculture: Prospects and challenges

Salinity is a growing global challenge, affecting soil productivity, freshwater availability, and aquatic ecosystems. Inland saline aquaculture presents a sustainable opportunity to utilise salt-affected water resources for food production. This article examines the prospects and challenges of aquaculture in inland saline environments, focusing on soil and water characteristics, species tolerance, and mitigation strategies. It highlights the potential of using brackish groundwater for aquaculture, reducing pressure on freshwater supplies while making use of degraded lands. The study also discusses the physiological adaptations of fish to salinity stress, the role of key ions in aquaculture success, and the integration of saline aquaculture with traditional farming systems. Inland saline aquaculture could play a critical role in enhancing food security, optimising water resource use, and mitigating environmental degradation in semi-arid and arid regions.

Some practices and techniques in cost-effective small and medium-scale aquaculture in West Bengal

Small and medium-scale aquaculture in West Bengal has evolved to incorporate cost-effective, sustainable practices that reduce input costs while maintaining productivity. This article explores various low-cost aquaculture techniques used by rural fish farmers, emphasising farm-made feed formulations, pond fertilisation methods, and integrated farming systems. Farmers utilise non-conventional feed additives to enhance fish health and growth while reducing reliance on expensive commercial products. Fermented feed supplements and probiotic formulations have been successfully implemented to improve water quality and plankton production. Integrated fish farming, incorporating compost manure, vermicomposting, and polyculture with species like giant freshwater prawn, has increased productivity and economic returns.

14th Asian fisheries and Aquaculture Forum: Early bird closes 10 November

The 14th Asian Fisheries and Aquaculture Forum (14AFAF) will be held from 12-15 February 2025 in New Delhi, India. Submission of abstracts has been extended until 5 November, and early bird registration closes on 10 November, so get in quick!

The forum is a scientific meeting organised by the Asian Fisheries Society (AFS) once every three years to understand the global trends and address issues and challenges faced by the fisheries and aquaculture sector. The main purpose of this Forum is to provide an international platform for eminent scientists, young researchers, and other stakeholders across the globe to share their research experiences and innovative ideas. By facilitating the exchange of diverse range of knowledge and expertise, the Forum with the Theme ‘Greening the Blue Growth in Asia-Pacific’ aims to address key issues towards developing sustainable fisheries and aquaculture.

The Grass Carp Aquaculture Manual

This manual covers everything from grass carp's natural distribution and reproductive behaviours to its biology and anatomy. This manual also explores diseases that can affect grass carp and emphasises the crucial connection between animal welfare and stress in fish. With a detailed discussion on cultivation systems, this manual includes pond structures and fish farming techniques in both polyculture and monoculture. It provides practical insights into important aspects such as water quality monitoring, feeding, nutrition, health checks and behaviour assessments at every stage of grass carp farming – from broodstock management to pre-slaughter and slaughter processes. The emphasis is on responsible harvesting techniques, transportation considerations and humane slaughter methods. This manual offers a comprehensive guide for both novice and experienced fish farmers, and enthusiasts interested in cultivating grass carp sustainably and ensuring optimal animal welfare.

Expert Workshop on Aquaculture Effluent Management held in Bangkok

In 2023, FAO and NACA initiated a consultation process on aquaculture effluent management in Asia and the Pacific in collaboration with NACA member governments. Experts across the region gathered information to assess the state of governance, advancements in technology and innovation in aquaculture effluent management. The consultative process culminated in an expert workshop, convened from 14 to 15 November, funded by FAO, to share views and national experiences on aquaculture effluent management.