The samplers include a gravity core sampler and a bottom grab sampler.
2.
Seabed surface sampling can be done with a grab sampler and with a box corer.
3.
With the modifications this version of the Van Veen grab sampler is heavier than the traditional version.
4.
Such samplers are frequently designed to recover a specified volume of material and may also be designed to recover the sediment or soil living biota as well such as the Ekman grab sampler.
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