Abstract

The effects of using different mesh sizes on interpretation of seasonal changes in the fauna of a sandy station off the north-east coast of England was investigated. Retention of smaller animals depended both upon absolute size, and the tendency of some species to fragment during routine processing of samples in the field. Seasonal effects may lead to difficulties in establishing trends in abundance using a larger mesh size, and the implications for certain types of investigation of this and other sources of sampling error are discussed.

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