ECOLOG is the acoustic instrumentation system developed at the Bedford Institute of Oceanography in Dartmouth, Nova Scotia, for research on and survey of fish populations. A dual-beam, vertical echo sounder is towed from a ship, transmitting sound and receiving echoes at a frequency of 50 or 120 kHz (echoes from swim bladders of fish are strongest in the 30-120 kHz range). Echoes are received simultaneously on narrow- and wide-beam acoustic receivers. Echo signals are digitized and recorded on magnetic tape. Computer programs on board ship, or later in the laboratory, give position, depth, number and size of fish encountered, allowing estimates of local abundance.
- MLA 8TH EDITION
- Dickie, Lloyd Merlin. "ECOLOG". The Canadian Encyclopedia, 31 July 2018, Historica Canada. https://www.thecanadianencyclopedia.ca/en/article/ecolog. Accessed 24 May 2019.
- APA 6TH EDITION
- Dickie, L., ECOLOG (2018). In The Canadian Encyclopedia. Retrieved from https://www.thecanadianencyclopedia.ca/en/article/ecolog
- CHICAGO 17TH EDITION
- Dickie, Lloyd Merlin, "ECOLOG". In The Canadian Encyclopedia. Historica Canada. Article published February 07, 2006; last modified July 31, 2018. https://www.thecanadianencyclopedia.ca/en/article/ecolog
- TURABIAN 8TH EDITION
- Lloyd Merlin Dickie, The Canadian Encyclopedia, s.v. "ECOLOG", last modified July 31, 2018, https://www.thecanadianencyclopedia.ca/en/article/ecolog
|Article by||Lloyd Merlin Dickie|
|Published Online||February 7, 2006|
|Last Edited||December 16, 2013|
ECOLOG is the acoustic instrumentation system developed at the Bedford Institute of Oceanography in Dartmouth, Nova Scotia, for research on and survey of fish populations.
Bedford Institute of Oceanography, Dartmouth, Nova Scotia.