LaMotte BOTTOM SAMPLING DREDGE 1097 - Manual

BOT TOM SAM PLING DREDGE
CODE 1097
IN TRO DUC TION
The LaMotte Bottom Sampling Dredge, a modification of the well-known
Peterson dredge, provides a convenient method for collecting bottom
sediments. It is used for collecting bottom sediments which may contain
mud, sand, ooze, and gravel; however, it is not designed to collect samples
from rock bottoms. By using a bottom sampling dredge, a number of
different analyses can be made. Since the bottom sediments represent a
good area to find macroinvertebrates and benthic algae, the communities
of organisms living on or in the bottom can be easily studied
quantitatively and qualitatively. A chemical analysis of the bottom
sediments can be conducted to determine what chemicals are available to
the organisms living in the bottom habitat. Also, the structural
characteristics of the bottom may be examined and related to the
biological and chemical analysis. All of these different studies are made
possible through the use of a bottom sampling dredge.
L Mott