Dredging box

Same as 2d Dredger.
(Gun.) A copper box with a perforated lid; - used for sprinkling meal powder over shell fuses.
- Farrow.

See also: Dredge, Dredge

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In each dredging box, 12 successive tows were made in alternating directions with sufficient lead-ins and exits to ensure that the dredges were on-bottom for the entire length of the box.
None of the correlations between burrow and clam abundances in the three postdredging sampling periods were significant in either dredging box and all were negative.
All postdredging correlations in the two dredging boxes were negative and nonsignificant.
Although discarding (nontarget species bycatch, processed bivalves) was carried out in one of the dredging boxes, video surveys showed little evidence of discards on the seabed surface.