Title from PDF title page (viewed on Oct. 7, 2011).
"Marine Scotland, Science"--Cover.
"DPPAS11645 (05/11)"--T.p. verso.
Variation in the results of hydroacoustic surveys of Scottish lochs : the importance of season, diurnal timing and fish species assemblage by J. D. Godfrey. ISBN 9781780452135. Published by Scottish Government in 2011. Publication and catalogue information, links to buy online and reader comments.