Abstract
Deepwater species fishing trials commenced in Ireland in 1988 assisted by the European Union Commission’s Exploratory Fishing Voyage scheme. The objective was to develop a fishery for unexploited non-quota species and divert fishing effort from existing quota species which were under severe pressure. The first species targeted was blue whiting (Micromistius poutassou) quickly followed by argentines, also known as silver smelt (Argentina silus), and progressing to a wider range of species in even deeper water such as grenadiers (Coryphaenoides rupestris), black scabbard fish (Aphanopus carbo), Portuguese shark (Centroscymnus coelolepis) etc. This involved pelagic and demersal fishing techniques at a cost of considerable material damage as a result of working on unknown fishing grounds. Over the 3 year period 1988 to 1990 the catches of argentines suffered a rapid and alarming decline. The reasons for this are not known, although various possibilities are considered.
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