Author: Dr C J Shepherd

Aquaculture: are the criticisms justified? II – Aquaculture’s environmental impact and use of resources, with special reference to farming Atlantic salmon

Professor D C Little,
Dr C J Shepherd
Summary Salmon farming is the most highly developed form of large scale intensive aquaculture owing to its productivity growth and technological change. The fundamental questions are how farmed salmon compares to other food production systems and prospects for its improved sustainability. This paper reviews the criticisms of Atlantic salmon farming, in particular those relating to its ecological and environmental record.   Compared with terrestrial livestock, fish are better …


Aquaculture: are the criticisms justified? Feeding fish to fish

Dr C J Shepherd
Summary Aquaculture is a fast-growing sector of livestock production, but has attracted criticism owing to the practice of using marine ingredients as feed, usually in the form of fishmeal and fish oil. After placing so-called production of ‘fed’ aqua- culture within the global supply context of capture fisheries and aquaculture, the author lists the objections made against feeding fish to fish. This is followed by a survey of the current trends in the production of fishmeal and fish …