Titlebook: Coastal Shellfish — A Sustainable Resource; Proceedings of the T Gavin Burnell Conference proceedings 2001 Kluwer Academic Publishers 2001

Meander

Prostatism

The commercial potential of the common sea urchin , from the west coast of Scotland increased in test diameter during the 24-week experiment. At the end of the trial urchins fed salmon feed had a significantly higher gonad and alimentary index than those in the other treatments. . is able to successfully exploit a diet rich in animal-origin oils. The diets also influenced gonad co

concert

Implications of temporal and spatial variability in , populations to the associated commercial coastruitment. Despite the undeniable pressures of overfishing at many localities, it seems likely there is a strong ‘natural’ and possibly predictable element to the variability in . population size and structure. For the restoration and sustainable harvest of Irish . aspects of its behavioural ecology

Lumbar-Stenosis

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Short-term impact of blue mussel dredging (, L.) on a benthic communityrded outside the mussel beds just after dredging, but this effect lasted for less than 7 days. After dredging, brown shrimps, . invaded the dredged areas. This species is an important predator of smaller invertebrates, and it is suspected that it was feeding on small vulnerable polychaetes exposed a

Spongy-Bone

The effect of scallop dredging on Irish Sea benthos: experiments using a closed areasturbed control areas and more similar to commercially dredged areas. At each sampling date, similarity between dredged samples was greater than between undredged samples. Since 1989, there have been increases in the mean numbers of . in the closed area. The age structure of the closed area . popula

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