Topic: Peterson Grab
Not finding your answer? Try searching the web for Peterson Grab
Answers to Common Questions
What is a peterson's grab?
This is a sampling device used by aquatic and marine biologists. Since 1930 the Petersen grab has been used in fresh water for collecting macroscopic fauna in sand, gravel, marl, clay or clay combinations. If used in salt water, it must be ... Read More »
Source: http://answers.yahoo.com/question/index?qid=1006022401235
