A fisherman's guide to echo sounding and sonar equipment
Subtitle: acoustic fish detection instruments
By: Duncan Amos.
Contributors: University of Rhode Island.
Series: Marine bulletin / University of Rhode Island -- 41.; Marine bulletin (University of Rhode Island) -- no. 41.
Publisher: University of Rhode Island
Published: 1980
Place of publication: [Kingston]
Language: eng
Number of pages: 67
Subjects: Fish detection.; Fisheries -- Equipment and supplies.; Echo sounding in fishing.; Sonar in fishing.; National Sea Grant Program -- University of Rhode Island.
Notes: Grant NA79AA-D-00096.

On cover: Marine Advisory Service, NOAA/Sea Grant.