A multiple coring system for use with scuba

Abstract

A diver-operated coring system which takes undisturbed contiguous samples has been developed . A perspex space-frame localises a number of contiguous thin-walled tubes which can be driven into the sediment and from which core samples can be extracted . The corer consists of transparent tubing and low-pressure gate valve . The system is useful for describing small-scale spatial dispersion and for sampling patchy habitats . It is light, simple, inexpensive and is flexible with respect to the size and number of contiguous cores .